Nut fastening tool

Abstract

The utility model discloses a nut fastening tool, which belongs to the technical field of mounting tools, and adopts the technical scheme that a long driving shaft is arranged on a plate I, a short driven shaft is arranged on a plate II, and the long driving shaft and the short driven shaft are in transmission through a bevel gear; a driving sleeve is arranged at the other end of the short driven shaft; an inserting rod is fixedly arranged at the other end of the long driving shaft; fixing rods are arranged on the first plate and located on the two sides of the long driving shaft, the two ends of the fixing rods are connected through connecting rods, first supporting rods are arranged on the connecting rods and located on the two sides of the long driving shaft, a fixing sleeve is arranged at the end, close to the inserting rod, of the long driving shaft through a bearing, and a threaded cylinder is arranged at the end, facing the first supporting rods, of the fixing sleeve; a rotating cylinder is arranged on the threaded cylinder, a mounting cylinder is rotationally arranged on the outer side of the rotating cylinder, a second supporting rod is hinged to the mounting cylinder, and the other end of the second supporting rod is hinged to the other end of the first supporting rod; a supporting wheel is arranged on the first supporting rod or the second supporting rod. The nut fastening tool has the advantage that the nut fastening tool is provided.

Description

Technical Field

[0001] This utility model belongs to the field of installation tool technology, and specifically relates to a nut fastening tool. Background Technology

[0002] In the construction process of electromechanical engineering, it is necessary to tighten nuts in confined spaces. For example, in the construction of air conditioning ducts, when the ducts are connected by flanges, the flanges are usually bolted together. Since air conditioning ducts are generally located close to walls, tightening the bolts and nuts between the duct and the wall is quite troublesome, especially for rectangular ducts. Currently, this is usually done manually by reaching into the confined space with a wrench, which is time-consuming, laborious, and has a relatively low tightening rate. Therefore, a nut tightening tool suitable for construction between rectangular air conditioning ducts and walls needs to be designed. Utility Model Content

[0003] The purpose of this utility model is to provide a nut fastening tool suitable for rectangular air ducts.

[0004] This utility model is achieved through the following measures: a nut fastening tool, characterized in that it includes a right-angle plate composed of a plate one and a plate two, a long drive shaft is rotatably arranged on the plate one, and a short driven shaft is rotatably arranged on the plate two, the long drive shaft and the short driven shaft are driven by bevel gears and the angle between the two shafts is 90 degrees;

[0005] The other end of the short driven shaft is provided with a drive sleeve via a threaded connection, and the outer end of the drive sleeve is provided with a hexagonal hole that mates with a nut.

[0006] The other end of the long drive shaft is fixedly provided with a plug that can be inserted into the output end of an electric drill;

[0007] Fixed rods are symmetrically arranged on the plate and on both sides of the long drive shaft. The two ends of the fixed rods are connected by connecting rods. The connecting rods are provided with through holes that allow the long drive shaft to pass through. Support rods are symmetrically hinged on the connecting rods and on both sides of the long drive shaft. A fixed sleeve is provided on the end of the long drive shaft near the insertion rod through a bearing. The inner ring of the bearing is fixedly connected to the long drive shaft, and the outer ring of the bearing is fixedly connected to the fixed sleeve. A threaded cylinder with external threads is fixedly provided on the end of the fixed sleeve facing the support rod. A rotating cylinder is provided on the threaded cylinder through a threaded connection. An installation cylinder is rotatably provided on the outer side of the rotating cylinder. Support rods are symmetrically hinged on the installation cylinder. The other end of the support rod is hinged to the other end of the support rod, and the lengths of the support rods are the same.

[0008] A support wheel is provided on the support rod one or support rod two, near the hinge joint of support rod one and support rod two.

[0009] The connection between the inner ring of the bearing and the long drive shaft, as well as the connection between the outer ring of the bearing and the fixed sleeve, are generally made using an interference fit.

[0010] Furthermore, the rotating cylinder is close to the fixed sleeve, and the first support rod and the second support rod are parallel to the long drive shaft.

[0011] Furthermore, the outer periphery of the fixing sleeve is wrapped with an anti-slip sleeve.

[0012] Furthermore, an annular outer boss is concentrically provided on the outer wall of the rotating cylinder, and an annular groove is concentrically provided on the upper part of the annular outer boss. An annular inner boss that mates with the annular groove is concentrically provided on the inner wall of the mounting cylinder.

[0013] Furthermore, the long drive shaft and the short driven shaft are rotatably mounted on the right-angle plate via bearing seats. The bearing seats on the first plate are on the same side as the fixed rod, while the bearing seats on the second plate are on different sides from the drive sleeve.

[0014] The bevel gear is provided on the other side of plate one and plate two.

[0015] Furthermore, the support wheel is generally rotatably mounted on the U-shaped frame, and the connecting end of the U-shaped frame is generally fixedly provided with a screw. The support rod one or support rod two is provided with a mounting hole that mates with the screw. The screw passes through the mounting hole and is tightened and fixed by a nut.

[0016] Furthermore, the axis of the support wheel is generally perpendicular to or parallel to the axis of the long drive shaft.

[0017] Furthermore, depending on the size of the air conditioning duct, the length of the long drive shaft is generally 1000mm-1500mm. The length of the two support rods is generally 30%-40% of the length of the long drive shaft, and the short driven shaft is generally around 100mm.

[0018] Furthermore, the insertion rod is generally a four-sided rod or a hexagonal rod, and the electric drill has a prism hole that mates with the prism rod.

[0019] How to use:

[0020] Adjust the extension length of the two support wheels according to the distance between the nut on the duct, the outer wall of the duct, and the wall, and the distance between the nut and the outer wall of the duct. During adjustment, ensure that when the drive sleeve is engaged with the nut, the distance between the two support wheels and the outer wall of the duct and the wall is the same. Then rotate the rotating cylinder, which moves along the threaded cylinder. During this movement, the rotating cylinder also drives the mounting cylinder to move towards the drive sleeve, and the hinge of support rod one and support rod two moves outward until one support wheel contacts the outer wall of the duct and the other support wheel contacts the wall. This provides a certain degree of support for the entire device, reduces the construction intensity of workers, and assists in manually supporting the long drive shaft, maintaining the stability of the long drive shaft during rotation.

[0021] When the electric drill is started, the output end of the drill drives the long drive shaft to rotate. The long drive shaft drives the short driven shaft perpendicular to it to rotate through a bevel gear, which in turn drives the nut to rotate through the drive sleeve, thereby tightening the nut.

[0022] In addition, to further ensure the stability of the long drive shaft during rotation, construction workers can hold the anti-slip sleeve on the outside of the fixing sleeve for fixation. Since there is a bearing between the fixing sleeve and the long drive shaft, it does not affect the normal rotation of the long drive shaft.

[0023] The beneficial effect of the technical solution provided by this utility model embodiment is that it can assist manual tightening of nuts between rectangular air conditioning ducts and walls. Attached Figure Description

[0024] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings listed below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0026] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0027] Figure 3 This is a schematic diagram of the structure after removing the electric drill in an embodiment of this utility model;

[0028] Figure 4 This is a structural schematic diagram of the fixing sleeve and its related components;

[0029] Figure 5 This is a reference diagram showing the usage state of the nut tightening tool in the embodiments of this utility model;

[0030] Figure 6 yes Figure 5 A magnified view of a section at point B in the middle.

[0031] The components represented by each number in the attached diagram are listed below: 1. Right-angle plate; 2. Long drive shaft; 3. Short driven shaft; 4. Bevel gear; 5. Fixed rod; 6. Support rod one; 7. Fixed sleeve; 8. Threaded cylinder; 9. Rotating cylinder; 10. Mounting cylinder; 11. Support rod two; 12. Electric drill; 13. Support wheel; 14. Bearing seat; 15. Wall; 16. Air duct; 17. Bearing; 101. Plate one; 102. Plate two; 201. Insert rod; 301. Drive sleeve; 501. Connecting rod; 701. Anti-slip sleeve; 901. Annular outer boss; 902. Annular groove; 1001. Annular inner boss; 1301. U-shaped frame; 1302. Screw. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. Of course, the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit its scope.

[0033] See Figures 1-6 A nut fastening tool, characterized in that it includes a right-angle plate 1 composed of a first plate 101 and a second plate 102, a long drive shaft 2 is rotatably arranged on the first plate 101, and a short driven shaft 3 is rotatably arranged on the second plate 102, the long drive shaft 2 and the short driven shaft 3 are driven by a bevel gear 4 and the angle between the two shafts is 90 degrees.

[0034] The other end of the short driven shaft 3 is connected to a drive sleeve 301 by a thread, and the outer end of the drive sleeve 301 is provided with a hexagonal hole that mates with a nut.

[0035] The other end of the long drive shaft 2 is fixedly provided with a plug rod 201 that is inserted into the output end of the electric drill 12;

[0036] Fixed rods 5 are symmetrically arranged on the plate 101 and on both sides of the long drive shaft 2. The two ends of the fixed rods 5 are connected by connecting rods 501. The connecting rods 501 are provided with through holes that allow the long drive shaft 2 to pass through. Support rods 6 are symmetrically hinged on the connecting rods 501 and on both sides of the long drive shaft 2. A fixed sleeve 7 is provided on the end of the long drive shaft 2 near the insertion rod 201 through a bearing 17. The inner ring of the bearing 17 is fixedly connected to the long drive shaft 2, and the outer ring of the bearing 17 is fixedly connected to the fixed sleeve 7. A threaded cylinder 8 with external threads is fixedly provided on the end of the fixed sleeve 7 facing the support rod 6. A rotating cylinder 9 is provided on the threaded cylinder 8 through a threaded connection. An installation cylinder 10 is rotatably provided on the outer side of the rotating cylinder 9. Support rods 11 are symmetrically hinged on the installation cylinder 10. The other end of the support rod 11 is hinged to the other end of the support rod 6, and the lengths of the support rods 6 and 11 are the same.

[0037] A support wheel 13 is provided on the support rod 6 or the support rod 11 near the hinge joint of the support rod 6 and the support rod 11.

[0038] The connection between the inner ring of bearing 17 and the long drive shaft 2, as well as the connection between the outer ring of bearing 17 and the fixed sleeve 7, generally adopts an interference fit.

[0039] The rotating cylinder 9 is close to the fixed sleeve 7, and the support rod 1 6 and the support rod 2 11 are parallel to the long drive shaft 2.

[0040] The outer part of the fixing sleeve 7 is wrapped with an anti-slip sleeve 701.

[0041] An annular outer boss 901 is concentrically provided on the outer wall of the rotating cylinder 9, and an annular groove 902 is concentrically provided on the upper part of the annular outer boss 901. An annular inner boss 1001 that mates with the annular groove 902 is concentrically provided on the inner wall of the mounting cylinder 10.

[0042] The long drive shaft 2 and the short driven shaft 3 are rotatably mounted on the right-angle plate 1 via bearing 17 seat 14. The bearing seat 14 on plate one 101 is on the same side as the fixed rod 5, and the bearing seat 14 on plate two 102 is on a different side from the drive sleeve 301.

[0043] A bevel gear 4 is provided on the other side of plate 101 and plate 202.

[0044] The support wheel 13 is generally rotatably mounted on the U-shaped frame 1301. The connecting end of the U-shaped frame 1301 is generally fixedly provided with a screw 1302. The support rod 11 or the support rod 2 is provided with a mounting hole that mates with the screw 1302. The screw 1302 passes through the mounting hole and is fixed by tightening with a nut.

[0045] The axis of the support wheel 13 is generally perpendicular to or parallel to the axis of the long drive shaft 2.

[0046] Based on the dimensions of the air conditioning duct 16, the length of the long drive shaft 2 is generally 1000mm-1500mm. The lengths of the two support rods are generally 30%-40% of the length of the long drive shaft 2, and the short driven shaft 3 is generally around 100mm.

[0047] The insertion rod 201 is generally a four-sided rod or a hexagonal rod, and the electric drill 12 has a prism hole that mates with the prism rod.

[0048] How to use:

[0049] Adjust the extension length of the two support wheels 13 according to the nut on the duct 16, the distance between the outer wall of the duct 16 and the wall 15, and the distance between the nut and the outer wall of the duct 16. During adjustment, when the drive sleeve 301 is engaged with the nut, the distance between the two support wheels 13 and the outer wall of the duct 16 and the wall 15 is the same. Then rotate the rotating cylinder 9, which moves along the threaded cylinder 8. During the movement, the rotating cylinder 9 also drives the mounting cylinder 10 to move towards the drive sleeve 301. The hinge of support rod 1 6 and support rod 2 11 moves outward until one support wheel 13 contacts the outer wall of the duct 16 and the other support wheel 13 contacts the wall 15. This can provide a certain degree of support for the entire device, reduce the construction intensity of the workers, and assist in manually supporting the long drive shaft 2 to maintain the stability of the long drive shaft 2 during rotation.

[0050] Start the electric drill 12. The output end of the electric drill 12 drives the long drive shaft 2 to rotate. The long drive shaft 2 drives the short driven shaft 3 perpendicular to it to rotate through the bevel gear 4. In turn, it drives the nut to rotate through the drive sleeve 301, thereby achieving the tightening of the nut.

[0051] In addition, to further ensure the stability of the long drive shaft 2 during rotation, the construction personnel can hold the anti-slip sleeve 701 on the outside of the fixing sleeve 7 for fixation. Since there is a bearing 17 between the fixing sleeve 7 and the long drive shaft 2, it does not affect the normal rotation of the long drive shaft 2.

[0052] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A nut tightening tool, characterized in that, It includes a right-angled plate consisting of a plate 1 and a plate 2. A long drive shaft is rotatably mounted on the plate 1, and a short driven shaft is rotatably mounted on the plate 2. The long drive shaft and the short driven shaft are driven by a bevel gear, and the angle between the two shafts is 90 degrees. The other end of the short driven shaft is provided with a drive sleeve via a threaded connection, and the outer end of the drive sleeve is provided with a hexagonal hole that mates with a nut. The other end of the long drive shaft is fixedly provided with a plug that can be inserted into the output end of an electric drill; Fixed rods are symmetrically arranged on the plate and on both sides of the long drive shaft. The two ends of the fixed rods are connected by connecting rods. The connecting rods are provided with through holes that allow the long drive shaft to pass through. Support rods are symmetrically hinged on the connecting rods and on both sides of the long drive shaft. A fixed sleeve is provided on the end of the long drive shaft near the insertion rod through a bearing. The inner ring of the bearing is fixedly connected to the long drive shaft, and the outer ring of the bearing is fixedly connected to the fixed sleeve. A threaded cylinder with external threads is fixedly provided on the end of the fixed sleeve facing the support rod. A rotating cylinder is provided on the threaded cylinder through a threaded connection. An installation cylinder is rotatably provided on the outer side of the rotating cylinder. Support rods are symmetrically hinged on the installation cylinder. The other end of the support rod is hinged to the other end of the support rod, and the lengths of the support rods are the same. A support wheel is provided on the support rod one or support rod two, near the hinge joint of support rod one and support rod two.

2. The nut fastening tool according to claim 1, characterized in that, The rotating cylinder is close to the fixed sleeve, and the first support rod and the second support rod are parallel to the long drive shaft.

3. The nut fastening tool according to claim 1, characterized in that, The outer periphery of the fixing sleeve is wrapped with an anti-slip sleeve.

4. The nut fastening tool according to claim 1, characterized in that, An annular outer boss is concentrically provided on the outer wall of the rotating cylinder, and an annular groove is concentrically provided on the upper part of the annular outer boss. An annular inner boss that mates with the annular groove is concentrically provided on the inner wall of the mounting cylinder.

5. The nut fastening tool according to claim 1, characterized in that, The long drive shaft and the short driven shaft are rotatably mounted on the right-angle plate through bearing seats. The bearing seat on plate one is on the same side as the fixed rod, and the bearing seat on plate two is on a different side from the drive sleeve. The bevel gear is provided on the other side of plate one and plate two.

6. The nut fastening tool according to claim 1, characterized in that, The support wheel is rotatably mounted on the U-shaped frame, and a screw is fixedly mounted on the connecting end of the U-shaped frame. The support rod one or support rod two is provided with a mounting hole that mates with the screw. The screw passes through the mounting hole and is tightened and fixed by a nut.

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