Tool for installing nut with internal thread and external thread

Abstract

The utility model discloses an internal and external thread nut installation tool which comprises a knob, a nut connecting rod, a nut pressure sleeve and an internal and external thread nut, the knob is fixedly connected with one end of the nut connecting rod, the other end of the nut connecting rod is provided with threads, and the threaded end of the nut connecting rod extends into the nut pressure sleeve and extends out of the end of the nut pressure sleeve. And the internal and external thread nut is in threaded connection with the threaded end of the nut connecting rod. According to the utility model, the injection molding period of the plastic thermal firmware is shortened, the use is convenient, the production efficiency and the product stability are improved, the rate of finished products is reduced, and the defect that the opening depth of a slot mounted by using a slot screwdriver affects the strength of the internal and external thread nut is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of threaded nut installation, in particular to an internal and external threaded nut installation tool. Background Art

[0002] In the production of contactors, the auxiliary switch parts need to be fixedly installed on the plastic thermal fixture (such as Figure 1 As shown in the figure, it is generally necessary to injection mold internal and external thread nuts on the base of the plastic thermal fixture to improve the thread strength, so as to improve the reliability of the auxiliary contact tool.

[0003] The existing method generally adopts the method of using copper inlays in the plastic hot-fix injection molding process. This method has a long injection molding cycle, and the expansion coefficients of the inserts and the plastic hot-fix are inconsistent, which easily generates internal stress. The inserts must be well fixed in the mold during the production process, otherwise the injection molding will be poor, resulting in the scrapping of the entire product.

[0004] After the plastic hot-fix is ​​formed, the method of installing internal and external threaded nuts is generally adopted, which can simplify the structure and increase the output. Usually, the internal and external threaded nuts are grooved on the cylindrical bottom surface so that they can be installed using a flat-blade screwdriver. The depth of this opening will affect the strength of the internal and external threaded nuts. However, when installing the internal and external threaded nuts without a flat-blade groove, the nuts themselves have no force points, so specific installation tools are required to complete the installation, which is inconvenient. Utility Model Content

[0005] In view of the above shortcomings and deficiencies, the utility model provides an internal and external threaded nut installation tool, which makes the installation of internal and external threaded nuts convenient, improves production efficiency and product stability, and reduces the finished product rate.

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0007] A tool for installing internal and external threaded nuts, characterized in that it includes a knob, a nut connecting rod, a nut pressure sleeve and an internal and external threaded nut, the knob being fixedly connected to one end of the nut connecting rod, the other end of the nut connecting rod being provided with threads, the threaded end of the nut connecting rod extending into the interior of the nut pressure sleeve and extending out from the end of the nut pressure sleeve, the internal and external threaded nut being threadedly connected to the threaded end of the nut connecting rod.

[0008] The outer side of the knob is provided with vertical stripes for anti-slip.

[0009] The middle part of the nut pressure sleeve is provided with a depression for easy gripping and pressing by fingers.

[0010] The outer ring of the threaded end of the nut connecting rod matches the inner ring of the internal and external threaded nut, and the model range of the internal and external threaded nut is M2 to M4.

[0011] The utility model has the following beneficial effects and advantages:

[0012] The utility model shortens the injection molding cycle of the plastic hot-fixed parts, is easy to use, improves production efficiency and product stability, reduces the finished product rate, and avoids the disadvantage that the depth of the slotted opening used for installation with a slotted screwdriver affects the strength of the internal and external thread nuts. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the plastic thermal fixing device of the utility model;

[0014] Figure 2 It is a schematic diagram of the structure of the utility model;

[0015] Figure 3 It is a structural exploded view of the utility model.

[0016] Among them, 1 is a knob, 2 is a nut connecting rod, 3 is a nut pressure sleeve, 4 is an internal and external threaded nut, 5 is a threaded mounting hole, and 6 is a plastic thermal fixture. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings of the specification. Figure 2~3 As shown, the utility model is a tool for installing internal and external threaded nuts, characterized in that it includes: a knob, a nut connecting rod, a nut pressure sleeve and an internal and external threaded nut, the knob is fixedly connected to one end of the nut connecting rod, the other end of the nut connecting rod is provided with a thread, the threaded end of the nut connecting rod extends into the interior of the nut pressure sleeve and extends out from the end of the nut pressure sleeve, the internal and external threaded nut is threadedly connected to the threaded end of the nut connecting rod; the knob, the nut connecting rod, the nut pressure sleeve and the internal and external threaded nut are assembled to form the internal and external threaded nut installation tool.

[0018] The outer side of the knob is provided with vertical lines for anti-slip; the middle part of the nut pressure sleeve is provided with a depression for easy gripping and pressing by fingers; the outer ring of the threaded end of the nut connecting rod cooperates with the inner ring of the internal and external threaded nut, and the model range of the internal and external threaded nut is M2 to M4.

[0019] When using, Figure 1As shown, a threaded hole mounting hole 5 matching the size of the internal and external threaded nut 4 is opened at the fixed position of the plastic thermal fixture 6. In this embodiment, an M2 type threaded nut is required, and the M2 type internal and external threaded nut 4 is installed on the assembled internal and external threaded nut installation tool (that is, installed on the threaded end of the nut connecting rod extending out of the nut pressure sleeve 3), and the M2 type internal and external threaded nut 4 is aligned with the threaded hole mounting hole 5, and the internal and external threaded nut 4 is embedded into the grooved hole mounting hole 5 by rotating the knob 1, and the nut pressure sleeve 3 is pressed by hand to unscrew the tool (because the preload force of the internal and external threaded nut 4 and the bolt is basically the same, only a small pressure is needed to unscrew the tool, leaving the internal and external threaded nut 4 in the plastic thermal fixture to complete the pre-embedding), which is convenient for the subsequent installation and fixation of parts.

[0020] The utility model shortens the injection molding cycle of the plastic hot-fixed parts, is easy to use, improves production efficiency and product stability, reduces the finished product rate, and avoids the disadvantage that the depth of the slotted opening used for installation with a slotted screwdriver affects the strength of the internal and external thread nuts.

Claims

1. A tool for installing internal and external threaded nuts, characterized in that: It includes a knob, a nut connecting rod, a nut pressure sleeve and an internal and external threaded nut. The knob is fixedly connected to one end of the nut connecting rod, and the other end of the nut connecting rod is provided with a thread. The threaded end of the nut connecting rod extends into the interior of the nut pressure sleeve and extends out from the end of the nut pressure sleeve. The internal and external threaded nut is threadedly connected to the threaded end of the nut connecting rod.

2. The internal and external threaded nut installation tool according to claim 1, characterized in that: The outer side of the knob is provided with vertical stripes for anti-slip.

3. The internal and external thread nut installation tool according to claim 1, characterized in that: The middle part of the nut pressure sleeve is provided with a depression for easy gripping and pressing by fingers.

4. The internal and external thread nut installation tool according to claim 1, characterized in that: The outer ring of the threaded end of the nut connecting rod matches the inner ring of the internal and external threaded nut, and the model range of the internal and external threaded nut is M2 to M4.

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