High-strength plastic-coated precise positioning nail

Abstract

The utility model relates to the technical field of positioning nails, and discloses a high-strength plastic-coated precise positioning nail, which comprises a sleeve and an expansion assembly, the left end of the sleeve is fixedly connected with a directional sleeve, the left end of the directional sleeve is provided with a positioning strip, the expansion assembly comprises a positioning nail, and the positioning nail is fixedly connected with the expansion assembly. The outer wall of the positioning nail is slidably connected with a positioning seat. According to the high-strength plastic-coated precise positioning nail, the positioning nail moves directionally in the process of being knocked by an external tool, the tail end of the positioning nail thoroughly enters the positioning hole, the positioning nail is knocked, so that the positioning nail has a wedged slope in the positioning sleeve to generate certain friction force, and the fixing effect is achieved; the positioning strip is unfolded and embedded into the inner wall of the positioning hole, the contact area of the positioning sleeve and the positioning hole is increased, the stability of the positioning nail is enhanced again, the embedding effect of the positioning strip on the inner wall of the positioning hole is improved after the positioning strip is embedded into the inner wall of the positioning hole, and the fixing effect of the positioning nail is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning nails, in particular to a high-strength plastic-coated precision positioning nail. Background Art

[0002] Screws are tools that use the physics and mathematical principles of the circular rotation of the inclined surface of an object and the friction force to gradually tighten objects and mechanical parts. The main function of screws is to connect two workpieces together and tighten them. Screws are indispensable industrial necessities in daily life. Although traditional metal positioning nails are high in strength, they are often unable to be stably fixed on soft materials or walls with severe cracks, causing the positioning nails to lose their fixing function, reducing the scope of application of the positioning nails. In addition, the positioning nails are prone to loosening after being under load for a long time, causing the positioning nails to break, reducing the service life of the positioning nails. In view of this, we proposed a high-strength plastic-coated precision positioning nail. Summary of the invention

[0003] The purpose of the utility model is to provide a high-strength plastic-coated precision positioning nail to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above purpose, the utility model provides the following technical solutions: a high-strength plastic-coated precision positioning nail, comprising a sleeve and an expansion component, the left end of the sleeve is fixedly connected to a directional sleeve, and the left end of the directional sleeve is provided with a positioning strip.

[0005] Preferably, the expansion component includes a positioning pin, the outer wall of the positioning pin is slidably connected to the positioning seat, and the right surface of the positioning seat is fixedly connected to the positioning cavity.

[0006] Preferably, the expansion component includes an adjusting bolt, the outer wall of the adjusting bolt is provided with a threaded wall, the right end of the sleeve is fixedly connected to the adjusting seat, the input end of the adjusting seat is provided with an adjusting nut, the left end of the adjusting bolt is fixedly connected to the adjusting column, and the left end of the adjusting column is fixedly connected to the adjusting cap.

[0007] Preferably, the outer surface of the positioning strip is provided with a plurality of groups of evenly distributed through grooves.

[0008] Preferably, six groups of positioning strips are provided, and each group of positioning strips is distributed around the outer wall of the orientation sleeve in a circular array with the axis of the orientation sleeve as a reference point.

[0009] Preferably, the outer wall of the adjusting cap is rounded, and the cross-sectional area of ​​the adjusting cap is matched with the cross-sectional area of ​​the positioning strip.

[0010] Compared with the prior art, the utility model provides a high-strength plastic-coated precision positioning nail, which has the following beneficial effects: the high-strength plastic-coated precision positioning nail, the staff uses external tools to directionally knock the positioning nail, the positioning nail material is carbon steel, the minimum yield strength is 900 MPa, and the minimum tensile strength is 1040 MPa, which improves the high strength of the positioning nail, and the positioning nail is directionally moved during the knocking of the external tool, so that the end of the positioning nail completely enters the positioning hole, which improves the convenience of installation of the precision positioning nail, and by knocking the positioning nail, the positioning nail has a shear slope in the directional sleeve to generate a certain friction force, thereby achieving a fixing effect, and the positioning strip is embedded in the inner wall of the positioning hole after being unfolded, which increases the contact area between the directional sleeve and the positioning hole, thereby further enhancing the stability of the positioning nail, and after the positioning strip is embedded in the inner wall of the positioning hole, the embedding effect of the positioning strip on the inner wall of the positioning hole is improved, thereby improving the fixing effect of the positioning nail. In order to enrich the functionality of the device, the high-strength plastic-coated precision positioning nail rotates the adjusting nut to move the adjusting bolt outward, causing the adjusting cap and the positioning strip to be squeezed, thereby fully expanding the positioning strip in the fixing hole, completing the positioning of the fixing hole, and improving the application range of the device. The staff can adjust the degree of fixation of the positioning strip in the fixing hole according to the distance the adjusting bolt moves outward, thereby improving the applicability of the expansion component for fixing different materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional schematic diagram of the main structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the structural positioning nail area of ​​the utility model;

[0013] Figure 3 This is a schematic diagram of the structural area of ​​the adjustment seat of the second embodiment of the utility model;

[0014] Figure 4 This is a schematic diagram of the adjustment bolt area in the second embodiment of the utility model.

[0015] In the figure: 1. positioning pin; 101. positioning cavity; 102. positioning seat; 103. sleeve; 104. directional sleeve; 105. positioning strip; 2. adjusting bolt; 201. threaded wall; 202. adjusting nut; 203. adjusting seat; 207. adjusting cap; 208. adjusting column. Implementation

[0016] Embodiment 1: Figure 1 , Figure 2As shown, the utility model provides a technical solution: a high-strength plastic-coated precision positioning pin, including a sleeve 103 and an extension component, the left end of the sleeve 103 is fixedly connected to the directional sleeve 104, the left end of the directional sleeve 104 is provided with a positioning strip 105, the extension component includes a positioning pin 1, the outer wall of the positioning pin 1 is slidably connected to the positioning seat 102, and the right surface of the positioning seat 102 is fixedly connected to the positioning cavity 101.

[0017] In one embodiment of the utility model, after the positioning cavity 101 is placed into the desired positioning point, the cross-sectional area inside the sleeve 103 is matched with the cross-sectional area of ​​the positioning pin 1, and the positioning pin 1 penetrates the connecting sleeve 103. The staff uses an external tool to knock the positioning pin 1 in a directional manner. The positioning pin 1 is made of carbon steel with a minimum yield strength of 900MPa and a minimum tensile strength of 1040MPa, which improves the high strength of the positioning pin 1. The positioning pin 1 is moved in a directional manner during the knocking by the external tool, so that the end of the positioning pin 1 completely enters the positioning hole, thereby improving the convenience of installing the positioning pin 1 and achieving the fixing effect on the positioning point. Along with the knocking effect of the staff on the positioning pin 1, the positioning pin 1 has a shearing slope in the directional sleeve 104 to generate a certain friction force, thereby achieving a fixing effect, so that the positioning bar 105 at the end of the directional sleeve 104 expands to the surroundings under the action of the positioning pin 1. , six groups of positioning strips 105 are provided, and each group of positioning strips 105 is distributed in a circular array around the outer wall of the orientation sleeve 104 with the axis center of the orientation sleeve 104 as the reference point, thereby improving the stability of the positioning sleeve 104, and the positioning strips 105 in the positioning hole tend to be inserted around the inner wall of the positioning hole, so that the outer wall of the positioning strip 105 acts on the inner wall of the positioning hole. When the positioning pin 1 is embedded in the bottom of the inner wall of the positioning hole, the positioning strip 105 is expanded and embedded in the inner wall of the positioning hole, which increases the contact area between the orientation sleeve 104 and the positioning hole, thereby further enhancing the stability of the positioning pin 1 and avoiding the phenomenon that the positioning pin 1 is detached due to direct pulling of external force. The outer surface of the positioning strip 105 is provided with multiple groups of evenly distributed through grooves, which increases the friction force on the surface of the positioning strip 105, so that after the positioning strip 105 is embedded in the inner wall of the positioning hole, the embedding effect of the positioning strip 105 on the inner wall of the positioning hole is improved, thereby improving the fixing effect of the positioning pin 1.

[0018] In the utility model, when in use, the staff knocks the positioning pin 1, so that the positioning pin 1 has a shear-shaped slope in the orientation sleeve 104 to generate a certain friction force, thereby achieving a fixing effect, so that the positioning bar 105 at the end of the orientation sleeve 104 expands and moves around under the action of the positioning pin 1, and the positioning bar 105 in the positioning hole tends to be inserted around the inner wall of the positioning hole, so that the outer wall of the positioning bar 105 acts on the inner wall of the positioning hole. When the positioning pin 1 is embedded in the bottom of the inner wall of the positioning hole, the positioning bar 105 is expanded and embedded in the inner wall of the positioning hole, which increases the contact area between the orientation sleeve 104 and the positioning hole, thereby further enhancing the stability of the positioning pin 1, and after the positioning bar 105 is embedded in the inner wall of the positioning hole, the embedding effect of the positioning bar 105 on the inner wall of the positioning hole is improved, thereby improving the fixing effect of the positioning pin 1.

[0019] Example 2: Based on Example 1, please combine Figure 3 , Figure 4 The expansion component includes an adjusting bolt 2, the outer wall of the adjusting bolt 2 is provided with a threaded wall 201, the right end of the sleeve 103 is fixedly connected to the adjusting seat 203, the input end of the adjusting seat 203 is provided with an adjusting nut 202, the left end of the adjusting bolt 2 is fixedly connected to the adjusting column 208, and the left end of the adjusting column 208 is fixedly connected to the adjusting cap 207.

[0020] In the embodiment of the present utility model, in order to enrich the functionality of the device, when the material of the fixing point is a hard material, after the expansion component is placed into the fixing hole, the adjustment seat 203 is fixed to the outer end of the fixing hole, and the adjustment nut 202 is rotated. The material of the adjustment nut 202 is carbon steel with a minimum yield strength of 900MPa and a minimum tensile strength of 1040MPa, which improves the high strength of the adjustment nut 202. The adjustment bolt 2 moves outward through the threaded wall 201, and the movement of the adjustment bolt 2 drives the adjustment column 208 to move outward. The outer wall of the adjustment cap 207 is rounded, and the adjustment cap 2 The cross-sectional area of ​​07 is matched with the cross-sectional area of ​​the positioning strip 105, so that the adjusting cap 207 and the positioning strip 105 are squeezed, thereby fully unfolding the positioning strip 105 in the fixing hole. After unfolding, the positioning strip 105 fixes the inner wall of the fixing hole, thereby completing the positioning of the fixing hole, avoiding the phenomenon that the hard hole wall directly damages the positioning nail 1, and improving the application scope of the device. The staff can adjust the degree of fixation of the positioning strip 105 in the fixing hole according to the distance that the adjusting bolt 2 moves outward, thereby improving the applicability of the expansion component for fixing different materials.

[0021] In the present utility model, when in use, after the expansion assembly is placed into the fixing hole, the adjustment seat 203 is fixed to the outer end of the fixing hole, and the adjustment nut 202 is rotated to move the adjustment bolt 2 outward through the threaded wall 201, and the movement of the adjustment bolt 2 drives the adjustment column 208 to move outward, so that the adjustment cap 207 and the positioning bar 105 are squeezed, so that the positioning bar 105 is fully unfolded in the fixing hole, and the positioning bar 105 is unfolded to fix the inner wall of the fixing hole, thereby completing the positioning of the fixing hole, avoiding the phenomenon that the hard hole wall directly damages the positioning nail 1, and the staff can adjust the degree of fixation of the positioning bar 105 in the fixing hole according to the distance that the adjustment bolt 2 moves outward, enriching the functionality of the device. The above generally describes the present utility model in detail, but on the basis of the present utility model, some modifications or improvements can be made to it, which is obvious to general technicians in the technical field. Therefore, modifications or improvements that do not deviate from the spirit of the present utility model are within the protection scope of the present utility model.

Claims

1. A high-strength plastic-coated precision positioning pin, comprising a sleeve (103) and an expansion component, characterized in that: The left end of the sleeve (103) is fixedly connected to the orientation sleeve (104), and the left end of the orientation sleeve (104) is provided with a positioning strip (105).

2. A high-strength plastic-coated precision positioning pin according to claim 1, characterized in that: The expansion component comprises a positioning pin (1), the outer wall of the positioning pin (1) is slidably connected to a positioning seat (102), and the right surface of the positioning seat (102) is fixedly connected to the positioning cavity (101).

3. The high-strength plastic-coated precision positioning pin according to claim 1, characterized in that: The extension component comprises an adjusting bolt (2), the outer wall of the adjusting bolt (2) is provided with a threaded wall (201), the right end of the sleeve (103) is fixedly connected to the adjusting seat (203), the input end of the adjusting seat (203) is provided with an adjusting nut (202), the left end of the adjusting bolt (2) is fixedly connected to the adjusting column (208), and the left end of the adjusting column (208) is fixedly connected to the adjusting cap (207).

4. The high-strength plastic-coated precision positioning pin according to claim 1, characterized in that: The outer surface of the positioning strip (105) is provided with a plurality of groups of evenly distributed through grooves.

5. The high-strength plastic-coated precision positioning pin according to claim 1, characterized in that: Six groups of positioning strips (105) are provided, and each group of positioning strips (105) is distributed around the outer wall of the orientation sleeve (104) in a circular array with the axis of the orientation sleeve (104) as a reference point.

6. The high-strength plastic-coated precision positioning pin according to claim 3, characterized in that: The outer wall of the positioning cap (207) is rounded, and the cross-sectional area of ​​the positioning cap (207) is adapted to the cross-sectional area of ​​the positioning strip (105).

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