CN213673930U

CN213673930U - Screw removing tool

Info

Publication number: CN213673930U
Application number: CN202022634947.1U
Authority: CN
Inventors: 张常林
Original assignee: Maintek Computer Suzhou Co Ltd; Pegatron Corp
Current assignee: Maintek Computer Suzhou Co Ltd; Pegatron Corp
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-07-13
Anticipated expiration: 2030-11-13
Also published as: TWM621993U

Abstract

The utility model provides a screw demolishs instrument for dismantle the screw. The screw removal tool includes a body, a tapered drill bit, and at least one tapered dowel pin. The cone drill bit is located on the bottom surface of the body and has a tip remote from the bottom surface. The tip of the conical drill bit is used for abutting against the screw. The surface of the cone bit has threads, and the threads of the cone bit are opposite to the threads of the screw. The tapered locating pin is located on the bottom surface of the body and has a tip remote from the bottom surface. The tapered locating pin is closer to the edge of the body than the tapered drill bit. Because the conical drill bit with the screw thread can abut against the groove of the screw to be dismantled and has a positioning effect, and the conical positioning pin can be inserted into the surface of the screw to be dismantled, the screw to be dismantled can be rotated and taken out by the screw dismantling tool, and the product damage caused by forcibly dismantling the screw to be dismantled is avoided.

Description

Screw removing tool

Technical Field

The utility model relates to a screw demolition tool especially is about a screw demolition tool that can avoid causing the product to damage because of dismantling the screw by force.

Background

The screw itself has a certain service life, or the head of the screw is corroded by the use environment, so that the head of the screw may be embrittled or damaged. Conventional tools (e.g., screwdrivers) generally cannot completely remove the damaged screw, so that the damaged screw can only be left in the product, or the screw can only be forcibly removed from the product in a destructive manner. But when the screw is forcibly removed, the product itself may be damaged, thereby increasing the overall cost.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a technical aspect is a screw demolition tool for improve prior art's disappearance.

According to the utility model discloses a screw demolishs instrument for dismantle the screw. The screw removal tool includes a body, a tapered drill bit, and at least one tapered dowel pin. The cone bit is located on the bottom surface of the main body and is provided with a tip end far away from the bottom surface, the tip end is used for abutting against the screw, the surface of the cone bit is provided with threads, and the threads of the cone bit are opposite to the threads of the screw. The tapered locating pin is located on the bottom surface of the main body and has a tip end far away from the bottom surface, and the tapered locating pin is closer to the edge of the main body than the tapered drill bit.

In an embodiment of the present invention, the bottom surface of the main body has a central hole, the cone bit has an extension portion, and the extension portion and the central hole have threads coupled to each other.

In an embodiment of the present invention, the bottom surface of the main body has at least one tapping hole separated from the central hole, the tapered positioning pin has an extension portion, and the extension portion is coupled to the tapping hole.

The utility model discloses an in the embodiment, the number of above-mentioned toper locating pin is a plurality of, and a plurality of toper locating pins center on the conical bit.

In an embodiment of the present invention, the main body includes a handle, and the handle extends in a direction away from a top surface of the main body.

In an embodiment of the present invention, the diameter of the conical drill bit on the bottom surface of the main body is larger than the diameter of the conical positioning pin on the bottom surface of the main body.

In an embodiment of the present invention, the tapered drill is tapered toward a direction away from the main body.

In an embodiment of the present invention, the tapered positioning pin is tapered toward a direction away from the main body.

In an embodiment of the present invention, the height of the cone drill is greater than or equal to 5 mm.

In an embodiment of the present invention, the height of the tapered positioning pin is greater than or equal to 5 mm.

In the above embodiments of the present invention, the screw removing tool includes a conical drill and a conical positioning pin. Because the conical drill bit with the screw thread can abut against the groove of the screw to be dismantled and has a positioning effect, and the conical positioning pin can be inserted into the surface of the screw to be dismantled, the screw to be dismantled can be rotated and taken out by the screw dismantling tool, and the product damage caused by forcibly dismantling the screw to be dismantled is avoided.

Drawings

Fig. 1 is a perspective view of a screw removal tool according to an embodiment of the present invention;

FIG. 2 is an exploded view of the screw removal tool of FIG. 1;

FIG. 3 is a bottom view of the body of the screw removal tool of FIG. 2;

FIG. 4 is a side view of the cone drill bit of FIG. 2;

fig. 5 is a perspective view of the screw removal tool of fig. 1 in use.

Reference numerals

100 screw removing tool

110 main body

111: edge

112 bottom surface

113 center hole

114 top surface of

115 tapping hole

116 handle

118 of screw thread

120 conical drill bit

122 tip

123 surface

124 is screw thread

126 an extension

128 screw thread

130 conical positioning pin

132 tip

136: extension part

200 to-be-dismounted screw

202 groove

204 is a screw thread

206 surface (C)

D1 diameter

D2 diameter

d1 direction

d2 direction

h1 height

h2 height

Detailed Description

The following disclosure of embodiments provides many different embodiments or examples for implementing different features of the provided subject matter. Specific examples of components and arrangements are described below to simplify the present disclosure. Of course, these examples are merely examples and are not intended to be limiting. Further, the present disclosure may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

Spatially relative terms such as "below … …," "below … …," "lower," "above … …," "upper," and the like may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly as such.

Fig. 1 is a perspective view of a screw removal tool 100 according to an embodiment of the present invention. Referring to fig. 1, a screw removal tool 100 according to an embodiment of the present invention includes a body 110, a tapered drill 120, and at least one tapered locating pin 130. The cone 120 is located on the bottom surface 112 of the body 110 and has a tip 122 away from the bottom surface 112, the tip 122 has a positioning effect and is configured to abut a recess of a screw to be removed (as will be described in detail in fig. 5), wherein a surface 123 of the cone 120 has a thread 124, and the thread 124 of the cone 120 is opposite to the thread of the screw to be removed. Tapered locating pin 130 is located on bottom surface 112 of body 110 and has a tip 132 distal from bottom surface 112, tapered locating pin 130 being closer to edge 111 of body 110 than tapered drill 120. For example, the cone drill bit 120 may be located at the center of the bottom surface 112 of the body 110.

In addition, the body 110 may be cylindrical, but is not intended to limit the present invention. The body 110 has a bottom surface 112 and a top surface 114, and the material of the body 110 may include carbon (carbon), iron (iron), or a combination thereof. The material of the cone bit 120 and the cone locator pin 130 may comprise chromium (chromium), tungsten carbide (tungsten carbide), or combinations thereof.

The threads 124 of the cone drill 120 serve to increase the friction between the cone drill 120 and the screw to be removed so that the cone drill 120 may abut the screw to be removed. Since the tapered set pin 130 is closer to the edge 111 of the body 110 than the tapered drill bit 120, when the tapered drill bit 120 abuts a recess (e.g., a cross recess or a straight recess) of the screw to be removed, the tapered set pin 130 can be inserted into a surface near the recess of the screw to be removed, so that the screw to be removed can be simultaneously rotated when the screw removal tool 100 is rotated.

Screw removal tool 100 includes a tapered drill bit 120 and a tapered dowel 130. The tapered drill 120 with the thread 124 can abut against the groove of the screw to be removed and has a positioning effect, and the tapered positioning pin 130 can be inserted into the surface of the screw to be removed, so that the screw to be removed can be rotated and taken out by the screw removing tool 100 to avoid product damage caused by forcibly removing the screw to be removed.

Fig. 2 is an exploded view of the screw removal tool 100 of fig. 1. Fig. 3 is a lower view of the body 110 of the screw removal tool 100 of fig. 2. Referring to fig. 2 and 3 together, in the present embodiment, the bottom surface 112 of the main body 110 has a central hole 113, the cone bit 120 has an extension 126, and the extension 126 of the cone bit 120 and the central hole 113 of the main body 110 have

threads

128, 118 coupled to each other, respectively.

Since the central bore 113 of the body 110 and the extension 126 of the cone drill 120 have

threads

118, 128, respectively, that may couple to one another, different sized cone drill 120 may be replaced on the bottom surface 112 of the body 110 with the extension 126. That is, the user may select a cone drill 120 of an appropriate size according to the type of screw to be removed, as long as the cone drill 120 has threads that may be coupled to the central hole 113. For example, if the recess of the screw to be removed by the screw removal tool 100 is in-line, a smaller size of the cone drill 120 may be used to abut the in-line recess of the screw. Alternatively, if the recess of the screw to be removed by the screw removal tool 100 is cross-shaped, a larger sized cone drill 120 may be used to abut the cross-shaped recess of the screw.

Referring to fig. 2 and 3, in the present embodiment, the bottom surface 112 of the main body 110 has at least one tapping hole 115 separated from the central hole 113, the tapered positioning pin 130 has an extension 136, and the extension 136 is coupled to the tapping hole 115.

The tapped hole 115 is closer to the rim 111 of the body 110 than the central hole 113. The extension 136 of the tapered locating pin 130 may be coupled to the tapped hole 115, and the size of the extension 136 corresponds to the size of the tapped hole 115. As such, different numbers of tapered locating pins 130 may be disposed on the bottom surface 112 of the body 110 using the extensions 136. That is, the user may select an appropriate number of tapered locating pins 130 depending on the type of screw to be removed. For example, if the head of the screw to be removed by screw removal tool 100 is specially triangular, only one tapered dowel 130 may be used to sufficiently secure the surfaces adjacent to the recess of the connecting screw.

In the present embodiment, screw removal tool 100 includes a plurality of tapered locating pins 130 and a plurality of tapped holes 115, with tapped holes 115 surrounding central bore 113. After the tapered locating pins 130 are assembled with the tapered drill bit 120 on the bottom surface 112 of the body 110, the tapered locating pins 130 surround the tapered drill bit 120.

Because tapered dowels 130 are disposed about tapered drill bit 120, each of tapered dowels 130 may share the force between screw removal tool 100 and the surface of the screw to be removed, such that each tapered dowel 130 may be securely coupled to the surface of the screw to be removed. That is, when the tapered drill bit 120 abuts the recess of the screw to be removed, the tapered locating pins 130 are inserted into the surface of the screw to be removed in a surrounding manner, so that each tapered locating pin 130 provides a force for turning the screw to be removed when the screw removing tool 100 is used to remove the screw to be removed.

In addition, in the embodiment, the main body 110 may further include a handle 116, and the handle 116 extends in a direction d1 away from the top surface 114 of the main body 110. The diameter D1 of the tapered drill bit 120 at the bottom surface 112 of the body 110 is greater than the diameter D2 of the tapered locating pin 130 at the bottom surface 112 of the body 110.

In this embodiment, the cone drill bit 120 tapers in a direction d2 away from the body 110. The tapered locating pin 130 tapers in a direction d2 away from the body 110. The height h1 of the cone drill bit 120 may be greater than or equal to 5 millimeters. The height h2 of tapered locating pin 130 may also be greater than or equal to 5 millimeters. Due to the design, a user can apply force conveniently and take down the screw easily.

Fig. 4 is a side view of the cone drill bit 120 of fig. 2. Fig. 5 is a perspective view of the screw removal tool 100 of fig. 1 in use. Referring to fig. 4 and 5, for example, the handle 116 and the main body 110 can be connected in a combined manner or integrally formed, but not limited to the present invention. If the handle 116 is detachable from the body 110, the user may replace the handle 116 with a suitable length depending on the environment of use. The material of the handle 116 may comprise carbon (carbon), iron (iron), or a combination thereof. Furthermore, after the tapered drill bit 120 abuts the recess 202 of the to-be-removed screw 200 and the tapered dowel 130 is inserted into the surface 206 of the to-be-removed screw 200, the user may turn the screw removal tool 100 via the handle 116 to facilitate rotational removal of the to-be-removed screw 200.

Because the cone drill bit 120 has a larger diameter D1 at the bottom surface 112 of the body 110, it facilitates abutment against the recess 202 of the to-be-removed screw 200. On the other hand, the tapered locating pins 130 have a smaller diameter D2 at the bottom surface 112 of the main body 110, so that the number of the tapered locating pins 130 mounted on the main body 110 can be increased, which is beneficial for stably connecting the surface 206 of the screw 200 to be detached and avoiding the interference of the tapered locating pins 130 with each other.

Furthermore, the cone 120 tapers in a direction d2 away from the body 110, and when the cone 120 abuts the recess 202 of the to-be-removed screw 200, the cone 120 has sufficient contact area on one side of the body 110 to increase stability. On the other hand, the tapered locating pin 130 tapers in a direction d2 away from the main body 110 to allow easy insertion into the surface 206 of the screw 200 to be removed.

To sum up, the utility model discloses a screw demolition tool has conical bit and conical locating pin, consequently utilizes screw demolition tool to wait to tear open the recess of screw and insert conical locating pin and wait to tear open the surperficial back of screw with conical bit butt when the user, the screw thread of accessible conical bit increases and waits to tear open the frictional force between the screw to accessible conical locating pin inserts the surface of waiting to tear open the screw and waits to tear open the screw with firm connection, makes screw demolition tool rotatable take out wait to tear open the screw and avoid waiting to tear open the screw because of the dismantlement of force and cause the product to damage.

The foregoing has outlined features of several embodiments so that those skilled in the art may better understand the aspects of the present invention. Those skilled in the art should appreciate that they may readily use the present invention as a basis for designing or modifying other processes and structures for carrying out the same purposes and/or achieving the same advantages of the embodiments introduced herein. Those skilled in the art should also realize that such equivalent constructions do not depart from the spirit and scope of the present disclosure, and that they may make various changes, substitutions and alterations herein without departing from the spirit and scope of the present disclosure.

Claims

1. A screw removal tool for removing a screw, the screw removal tool comprising:

a main body;

a cone bit on a bottom surface of the body and having a tip remote from the bottom surface, the tip to abut the screw, wherein a surface of the cone bit has threads and the threads of the cone bit are opposite the threads of the screw; and

at least one tapered locating pin located on the bottom surface of the body and having a tip remote from the bottom surface, the tapered locating pin being closer to an edge of the body than the tapered drill bit.

2. The screw removal tool of claim 1, wherein the bottom surface of the body has a central bore, the cone bit has an extension, and the extension and the central bore have threads that couple to one another.

3. The screw removal tool of claim 2, wherein the bottom surface of the body has at least one tapped hole spaced from the central bore, the tapered locating pin has an extension, and the extension couples to the tapped hole.

4. The screw removal tool of claim 1, wherein there is a plurality of the at least one tapered locating pin, the plurality of tapered locating pins surrounding the tapered drill bit.

5. The screw removal tool of claim 1, wherein the body includes a handle, and the handle extends away from a top surface of the body.

6. The screw removal tool of claim 1, wherein the diameter of the tapered drill bit at the bottom surface of the body is greater than the diameter of the tapered dowel pin at the bottom surface of the body.

7. The screw removal tool of claim 1, wherein the tapered drill head tapers away from the body.

8. The screw removal tool of claim 1, wherein the tapered locating pin tapers away from the body.

9. The screw removal tool of claim 1, wherein the height of the conical bit is greater than or equal to 5 millimeters.

10. The screw removal tool of claim 1, wherein the height of the tapered locating pin is greater than or equal to 5 millimeters.