A non-magnetic screw mounting device for confined spaces

Abstract

This invention discloses a non-magnetic screw installation device for confined spaces, comprising a screwdriver bit, a first positioning component, and a second positioning component. The screwdriver bit is used to connect the non-magnetic screw. One end of the screwdriver bit is axially fixed within the first positioning component, and the other end is disposed within the second positioning component. The first and second positioning components are coaxially arranged and connected by a connecting rod. The screwdriver bit can rotate circumferentially within the first positioning component, and the second positioning component also has a plastic clamping portion. This invention uses a multi-point elastic wrapping method to fix the screw, allowing simultaneous insertion of the screwdriver and contact positioning. This not only enables stable fixing and installation of non-magnetic screws in confined spaces but also simplifies the work in such conditions, improves work efficiency, and the installation device is small in size, can be fixed to a screwdriver, and is easy to disassemble and carry.

Description

Technical Field

[0001] This invention belongs to the field of electronic equipment assembly technology, and particularly relates to a non-magnetic screw mounting device for use in confined spaces. Background Technology

[0002] Currently, ratchet screwdrivers, electric screwdrivers, and pneumatic screwdrivers are commonly used for screw connections in the assembly of electronic product components. These can all be used to fix and install magnetic screws in both spacious and confined spaces. However, for fixing and installing non-magnetic screws, ratchet screwdrivers and electric screwdrivers are ineffective in confined spaces and cannot fix (adhere) the screws for installation. Using tools such as tweezers to grasp and position the screws before installing them with ratchet screwdrivers or electric screwdrivers is cumbersome and inefficient. In addition, pneumatic screwdrivers can also be used for screw positioning and installation in confined spaces, but they require other components. Not only do they need to prepare corresponding workstations and be customized according to the screw type and installation space, but they are also bulky, making portable assembly difficult. Furthermore, the customized equipment requires many supporting components, resulting in higher costs. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a non-magnetic screw installation device for confined spaces. The device uses a multi-point elastic wrapping method to fix the screw, and can simultaneously insert a screwdriver and the screw for contact positioning. This not only enables stable fixing and installation of non-magnetic screws in confined spaces, but also simplifies the work in this situation and improves work efficiency. At the same time, the installation device is small in size, can be fixed to a screwdriver, and is easy to disassemble and carry.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A non-magnetic screw mounting device for confined spaces includes a screwdriver bit, a first positioning component, and a second positioning component. The screwdriver bit is used to connect the non-magnetic screw. One end of the screwdriver bit is axially fixed in the first positioning component, and the other end is disposed in the second positioning component. The first positioning component and the second positioning component are coaxially arranged and connected to each other by a connecting rod.

[0006] The screwdriver bit is circumferentially rotating within the first positioning component, and the second positioning component also has a plastic clamping part, so that the non-magnetic screw can be fixed in the clamping part and, after being matched with the screwdriver bit, can pass through the clamping part under the action of the screwdriver bit and be installed into the corresponding mounting hole.

[0007] In one embodiment, the second positioning component includes a positioning sleeve connected to the first positioning component. The bottom of the positioning sleeve is provided with a clamping sleeve, and the end of the clamping sleeve away from the positioning sleeve has multiple square grooves to form the plastic clamping part.

[0008] In one embodiment, the plastic clamping part is made of beryllium bronze.

[0009] In one embodiment, the top of the positioning sleeve is further provided with an inwardly recessed mounting area, on which a magnetic ring is disposed, the two poles of the magnetic ring being distributed on both sides in its axial direction.

[0010] In one embodiment, the first positioning assembly includes a clamping sleeve, a rotating inner ring, and a positioning outer ring. The rotating inner ring is disposed within the positioning outer ring and has a rotating bearing. The clamping sleeve is made of a plastic material and fits against the inner wall of the rotating inner ring to fix the screwdriver bit axially and enable it to rotate circumferentially.

[0011] In one embodiment, the rotary bearing includes a rotating part and a bearing part sleeved on the rotating part. The positioning outer ring includes sub-outer rings respectively disposed on the upper and lower sides of the bearing part. The sub-outer rings have recesses corresponding to the bearing part, so as to form the mounting space of the bearing part after the two sub-outer rings are welded together.

[0012] In one embodiment, the clamping sleeve is made of rubber.

[0013] In one embodiment, one end of the connecting rod is connected to the bottom of the first positioning component, and the other end is fixed to the positioning sleeve.

[0014] In one embodiment, the positioning sleeve has two symmetrically arranged fixing parts, and the connecting rod is connected to the positioning sleeve by fixing screws fixed on the fixing parts.

[0015] In one embodiment, both the rotating inner ring and the positioning outer ring are made of stainless steel.

[0016] The beneficial effects of this invention are as follows:

[0017] This device uses a multi-point elastic wrapping method to fix screws, allowing for simultaneous contact and positioning of the screw and screw. This not only enables stable fixing and installation of non-magnetic screws in confined spaces but also simplifies the work in such conditions, improving efficiency. Furthermore, the device is small in size, can be fixed to a screwdriver, and is easy to disassemble and carry. It can also be manufactured in various models to accommodate different types of screws. Attached Figure Description

[0018] The invention will now be described in more detail with reference to embodiments and the accompanying drawings.

[0019] Figure 1 A schematic diagram of an embodiment of the present invention is shown;

[0020] Figure 2 A schematic diagram of the structure of the first positioning component of the present invention is shown;

[0021] Figure 3 A schematic diagram of the structure of the second positioning component of the present invention is shown;

[0022] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0023] Figure label:

[0024] 1-Clamping sleeve, 2-Rotating inner ring, 3-Positioning outer ring, 4-Connecting rod, 5-Magnetic ring, 6-Positioning sleeve, 7-Fixing screw, 8-Clamping sleeve, 9-Square groove, 10-Plastic clamping part, 11-Fixing block, 201-Rotating part, 202-Bearing part. Detailed Implementation

[0025] The invention will now be further described with reference to the accompanying drawings.

[0026] This invention provides a non-magnetic screw mounting device for confined spaces, such as... Figure 1 As shown, it includes a screwdriver bit, a first positioning component and a second positioning component. The screwdriver bit is used to connect a non-magnetic screw. One end of the screwdriver bit is axially fixed in the first positioning component and the other end is set in the second positioning component. The first positioning component and the second positioning component are coaxially arranged and connected to each other by a connecting rod 4.

[0027] The screwdriver bit can rotate circumferentially within the first positioning assembly, and the second positioning assembly also has a plastic clamping part 10, so that non-magnetic screws can be fixed in the clamping part and can pass through the clamping part and be installed into the corresponding mounting hole under the action of the screwdriver bit after being matched with the screwdriver bit.

[0028] It should be noted that in confined spaces, such as when the connector of an electronic device is installed in a very limited position with less than 5mm of space, and the mounting screws are M2 or M1.6 304 stainless steel (non-magnetic) pan head screws or combination screws (with spring washers and flat washers), non-magnetic screws cannot be fixed and installed by magnetic attraction. Using tweezers or other tools to pick up and position the screws, and then using a ratchet screwdriver or electric screwdriver for installation, is cumbersome, inefficient, and prone to errors. Furthermore, using a pneumatic electric screwdriver requires customization based on the screw type and installation space. All of the above conventional methods are quite troublesome for screw installation.

[0029] In this embodiment, the screwdriver bit is fixed by a first positioning component, that is, the tip of the screwdriver bit is inserted into the first positioning component, and the screw is positioned in the second positioning component along the plastic clamping part 10. Then, the screwdriver bit is screwed into the plastic clamping part 10 by a screwdriver to engage and fix it with the groove of the screw head. That is, when the screw can rotate together with the screwdriver bit, it means that the two are positioned. Then, the screwdriver can be aligned with the mounting hole of the connector, and the screwdriver handle can be turned clockwise to screw the screw into the threaded hole. The screwdriver bit pushes the screw head out of the plastic clamping part 10, tightening the screw into the threaded hole. This multi-point elastic wrapping method fixes the screw and allows for simultaneous contact and positioning of the screwdriver bit and the screw. It not only enables stable fixing and installation of non-magnetic screws in confined spaces, but also simplifies the work in this situation and improves work efficiency. In addition, the installation device mainly extends vertically, and its horizontal dimension is slightly larger than the screw size, making it suitable for the installation of screws in various confined spaces. It can also be fixed to a screwdriver for easy disassembly and carrying.

[0030] In one embodiment, such as Figure 3 As shown, the second positioning component includes a positioning sleeve 6, which is connected to the first positioning component. A clamping sleeve 8 is provided at the bottom of the positioning sleeve 6. Multiple square grooves 9 are provided at the end of the clamping sleeve 8 away from the positioning sleeve 6 to form a plastic clamping part 10. That is, the positioning sleeve 6 serves as a connecting base, so that the first positioning component and the second positioning component are connected as one unit through the connecting rod 4. At the same time, the clamping sleeve 8 provided at the bottom of the positioning sleeve 6 is used to clamp the screw. Four evenly distributed square grooves 9 are provided at the end of the clamping sleeve 8 away from the positioning sleeve 6, so that the plastic clamping part 10 forms a four-claw structure. The head of the screw is inserted into the plastic clamping part 10 from the outside to the inside for fixing, which makes it easy to accurately position the screw to the threaded hole. Under the action of the subsequent screwdriver bit, it can directly pass out from the plastic clamping part 10 and then be fixed to the threaded hole.

[0031] Specifically, the plastic clamping part 10 is made of beryllium bronze, which has a strength of 1200-1500MPa and good plasticity, making it easy to fix the screw in the plastic clamping part 10, and at the same time, it can make the screw pass smoothly through the threaded hole after positioning.

[0032] Furthermore, the end of the clamping sleeve 8 away from the positioning sleeve 6 is also chamfered to further ensure the stability of the clamping screw;

[0033] In one embodiment, the top of the positioning sleeve 6 is further provided with an inwardly recessed mounting area, on which a magnetic ring 5 is provided, with the two poles of the magnetic ring 5 distributed on both sides in its axial direction.

[0034] It should be noted that, since both the first and second positioning components are small in size, after the screwdriver bit is inserted into the first positioning component, it needs to be inserted into the second positioning component. The magnetic ring 5 can quickly guide and position the head of the screwdriver bit, thereby achieving fast and accurate installation of the screwdriver bit.

[0035] Specifically, the magnetic ring 5 is fixed to the mounting area at the top of the positioning sleeve 6 by adhesive.

[0036] In one embodiment, such as Figure 2 As shown, the first positioning component includes a clamping sleeve 1, a rotating inner ring 2, and a positioning outer ring 3. The rotating inner ring 2 is disposed inside the positioning outer ring 3 and has a rotating bearing. The clamping sleeve 1 is made of plastic material and fits against the inner wall of the rotating inner ring 2 so that the screwdriver bit can be fixed axially and rotated circumferentially.

[0037] Specifically, the rotary bearing includes a rotating part 201 and a bearing part 202 sleeved on the rotating part 201. The positioning outer ring 3 includes sub-outer rings respectively disposed on the upper and lower sides of the bearing part 202. The sub-outer rings have recesses corresponding to the bearing part 202 so that the installation space of the bearing part 202 is formed after the two sub-outer rings are welded together. The clamping sleeve 1 is made of rubber.

[0038] It should be noted that the outer ring is set to protect the inner rotating ring 2 and the clamping sleeve 1. The clamping sleeve 1 fits against the inner wall of the inner rotating ring 2, so that the inner rotating ring 2 can drive the clamping sleeve 1 to rotate. At the same time, the rubber-made hoop sleeve can fix the screwdriver bit on the one hand, and on the other hand, under the action of the screwdriver, the screwdriver bit can be slowly screwed into the second positioning component and connected with the screw. That is, the first positioning component is set to facilitate the initial positioning of the screwdriver bit, which can fix it without affecting its rotation in the circumferential direction.

[0039] In one embodiment, one end of the connecting rod 4 is connected to the bottom of the first positioning component, and the other end is fixed to the positioning sleeve 6, that is, one end of the connecting rod 4 is welded to the bottom of the positioning outer ring 3.

[0040] Specifically, the positioning sleeve 6 is symmetrically provided with two fixing parts, that is, two symmetrical connecting rods 4 are provided, and the connecting rods 4 are connected to the positioning sleeve 6 by fixing screws fixed on the fixing parts, and the other end is connected to the positioning outer ring 3 as a whole.

[0041] In one embodiment, both the rotating inner ring 2 and the positioning outer ring 3 are made of stainless steel.

[0042] Specifically, in one embodiment, taking the example of a connector installation position of an electronic device that is in a very limited position, with less than 5mm of installation space, and whose mounting screws are M2 or M1.6 304 stainless steel (non-magnetic) pan head screws or combination screws (with built-in spring washers and flat washers), the implementation steps are as follows:

[0043] First, align the screwdriver bit with the center of the rotating inner ring 2 in the first positioning assembly, insert it into the rotating inner ring 2 and make it contact the clamping sleeve 1, and rotate it around the axis to insert it into the clamping sleeve 1. At the same time, during this process, the screwing speed can be adjusted according to the distance from the second positioning assembly until the tip of the screwdriver bit contacts the magnetic ring 5 of the second positioning assembly. At this time, install the screwdriver handle on the tail of the screwdriver bit and adjust the position of the screwdriver bit. With the help of the magnetic ring 5, insert the bit further into the positioning sleeve 6.

[0044] Furthermore, align the head of the connector mounting screw with the clamping end of the clamping sleeve 8, i.e., the end with four square grooves 9, and bring the edge of the mounting screw head to the inner wall of the clamping end of the clamping sleeve 8, inserting it into the plastic clamping part 10 from the outside in. That is, the mounting screw is fixed to the inner wall of the clamping end by the elastic action of the four-claw structure of the plastic clamping part 10, so that it can be connected and engaged with the screwdriver bit later.

[0045] Furthermore, the screwdriver bit is positioned to contact the groove of the mounting screw head. Specifically, the screwdriver bit is screwed into the clamping sleeve 8 axially and then inserted into the groove of the mounting screw head for engagement and fixation. When the screw can rotate with the screwdriver, it indicates that the two have been positioned and the subsequent connector installation operation can be carried out.

[0046] Furthermore, the screw and screwdriver that have been positioned above are together with this device. The tail of the screw is aligned with the connector mounting hole, and the screwdriver handle is turned clockwise to screw the screw into the mounting hole. The head of the screw is pushed out of the clamping sleeve 8 by the cutting edge of the screwdriver bit, so that the head of the screw and the cutting edge of the screwdriver bit are both outside the clamping sleeve 8. At the same time, in order to speed up the installation, the screw can be tightened by the cutting edge of the screwdriver bit until the installation of the screw is completed.

[0047] Finally, repeat the above steps to install the remaining screws in the connector installation process, and finally complete the installation of all screws, achieving fast, convenient and accurate installation of the connector.

[0048] In the description of this invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0049] While the invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A non-magnetic screw mounting device for use in tight spaces, characterized in that, The screwdriver bit is used to connect the non-magnetic screw, one end of the screwdriver bit is fixed axially in the first positioning assembly, and the other end is arranged in the second positioning assembly, the first positioning assembly and the second positioning assembly are coaxially arranged, and the two are connected through a connecting rod; The screwdriver bit can rotate circumferentially in the first positioning assembly, and the second positioning assembly also has a plastic clamping part, so that the non-magnetic screw can be fixed in the clamping part and can be installed on the corresponding mounting hole under the action of the screwdriver bit after matching with the screwdriver bit; The second positioning assembly includes a positioning sleeve, the positioning sleeve is connected with the first positioning assembly, and the bottom of the positioning sleeve is provided with a clamping sleeve, a plurality of square grooves are formed on the end of the clamping sleeve away from the positioning sleeve, so as to form the plastic clamping part.

2. A non-magnetic screw mounting device for tight spaces according to claim 1, characterized in that, The plastic clamping part is made of beryllium bronze material.

3. A non-magnetic screw mounting device for tight spaces according to claim 1, characterized in that, The top of the positioning sleeve is also provided with an inwardly recessed mounting area, and a magnetic ring is arranged on the mounting area, and the two poles of the magnetic ring are distributed on the two sides of the axial direction.

4. A non-magnetic screw mount device for tight spaces as defined in claim 1, wherein, The first positioning assembly includes a clamping sleeve, a rotating inner ring and a positioning outer ring, the rotating inner ring is arranged in the positioning outer ring, the rotating inner ring has a rotating bearing, and the clamping sleeve is made of plastic material and is attached to the inner wall of the rotating inner ring, so that the screwdriver bit is fixed axially and can rotate circumferentially.

5. A non-magnetic screw mount device for tight spaces according to claim 4, wherein, The rotating bearing includes a rotating part and a bearing part sleeved on the rotating part, the positioning outer ring includes two sub-outer rings arranged on the upper and lower sides of the bearing part respectively, the sub-outer ring has a recessed part corresponding to the bearing part, so that the mounting space of the bearing part is formed after the two sub-outer rings are welded.

6. A non-magnetic screw mount device for tight spaces as defined in claim 4, wherein, The clamping sleeve is made of rubber material.

7. A non-magnetic screw mount device for tight spaces as defined in claim 1, wherein, One end of the connecting rod is connected with the bottom of the first positioning assembly, and the other end is fixed on the positioning sleeve.

8. A non-magnetic screw mount device for tight spaces according to claim 7, wherein, The positioning sleeve is symmetrically provided with two fixing parts, and the connecting rod is connected with the positioning sleeve through a fixing screw fixed on the fixing part.

9. A non-magnetic screw mount device for tight spaces according to any one of claims 4 to 6, characterized in that, The rotating inner ring and the positioning outer ring are made of stainless steel material.

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