TWI685402B - Adjustable positioning device - Google Patents

Abstract

An adjustable positioning device is provided with a connecting piece, a positioning piece and an adjusting piece locked to the connecting piece, and an adjusting structure. The adjusting structure has two convex portions respectively arranged on the positioning piece and the adjusting piece, and at least one resisting surface is formed by The bottom end of one of the convex parts is formed by rotating obliquely upward toward the direction of the other convex part, and the positioning component on the connecting member can be adjusted by the adjustment structure to facilitate the user to adjust the position of the positioning component on the connecting member It has the effect of positioning or anti-disassembly in position.

Description

Adjustable positioning device

The present invention claims the priority of the Republic of China Invention Patent Application No. 107128162. The name of the claimed parent case is "adjustable positioning device", and the application date is August 13, 2018. In addition, the content of the claimed mother case is incorporated by reference.

The invention relates to an adjustable positioning device, and particularly relates to a positioning device that uses the elimination of thread pitch to generate frictional force to achieve the adjustment positioning effect.

At present, the mechanisms used for positioning and anti-dismantling are roughly divided into the following types:

1. Processing the screw head to form a ring groove, and after the screw is tightened, continue to turn the head to break the head from the ring groove, leaving only the threaded part locked in the object. In this method, the head needs to be broken with a relatively large force. The internal thread of the object must have sufficient strength to resist torsion, which can easily cause thread collapse and other phenomena during use, and the locking degree cannot be adjusted according to the needs of the object.

Second, a groove with a special shape is designed on the screw head to cooperate with the tool for locking. Although this method is easier to remove the screws, the construction personnel need to use special tools, which causes inconvenience in use.

An object of the present invention is to use an adjustment structure to allow a user to easily adjust the position of the positioning assembly on the connecting member, and to produce a positioning or positioning anti-disassembly effect at an appropriate position.

Therefore, in order to achieve the above object, the present invention provides an adjustable positioning device, which includes: a connecting member, a positioning component, and an adjusting structure. The connecting piece is provided with a connecting threaded portion And a head that is relatively connected to the threaded portion; the positioning assembly has a positioning element and an adjusting element, the positioning element has a threaded engagement portion connecting the positioning thread portion of the threaded portion and is screwed to the side of the connecting element near the head, the adjusting element has A screw thread engages the adjusting screw part of another part connected to the screw part and screwed the connecting part away from the other side of the head; the adjusting structure has two convex parts and at least one resisting surface, and these convex parts are respectively arranged on the positioning parts of the positioning component The two opposing surfaces of the adjustment member, the resisting surface is formed by the bottom end of one of the convex parts rotating obliquely upward in the direction of the other convex part, and under the condition that the connecting screw part is a right-handed screw part, to The straight line parallel to the head is assumed to be the X-axis, and the slope of a straight line derived from the parallel of the resisting surface is greater than the slope of the connecting thread, or the straight line parallel to the head is assumed assuming that the connecting thread is a left-handed thread For the X axis, the slope of the straight line parallel to the resisting surface is smaller than the slope of the connecting screw part; when the two convex parts abut against each other, when the adjusting member is rotated on the connecting member close to the head, the positioning member is also rotated close to the head Part, and when the adjusting member rotates away from the head, the convex part that is not connected to the resisting surface will gradually approach and resist the resisting surface, thereby eliminating the thread spacing between the positioning screw part and the adjusting screw part and the connecting screw part, Produce positioning effect.

According to a preferred embodiment, the connecting thread portion is an external thread portion, and the positioning thread portion and the adjusting thread portion are both internal thread portions.

According to a preferred embodiment, the connecting thread portion is an internal thread portion, and the positioning thread portion and the adjusting thread portion are both external thread portions.

(1)‧‧‧Connector

(11)‧‧‧Male thread

(12)‧‧‧Head

(2)‧‧‧Positioning components

(21)‧‧‧Locating parts

(211)‧‧‧Positioning internal thread

(22)‧‧‧Adjustment

(221)‧‧‧Adjust internal thread

(3)‧‧‧Adjust the structure

(31)‧‧‧First convex

(32)‧‧‧Second convex part

(33)‧‧‧resistance

(4) ‧‧‧ Object

(41)‧‧‧Through hole

(D)‧‧‧straight line

(L)‧‧‧straight line

The above objects, and other objects, features, and advantages will be made clearer by the ideal embodiments described below and the following drawings attached to the embodiments: FIG. 1 is a perspective external view of a first embodiment of the invention; 2 is a three-dimensional exploded view of the first embodiment of the present invention; FIG. 3 is a schematic view of the positioning component locked into the connector of the first embodiment of the present invention; FIG. 4 is a schematic diagram of the positioning assembly in the first embodiment of the present invention when forming a positioning; FIG. 5 is an exploded view of the second embodiment of the present invention; and FIG. 6 is a schematic diagram of the second embodiment of the present invention.

Please refer to FIGS. 1 to 5. As can be clearly seen from the figure, the adjustable positioning device of the present invention is provided with a connecting member (1), a positioning assembly (2), and an adjusting structure (3).

The connecting member (1) is provided with an external thread portion (11) and a head portion (12) opposite to the external thread portion (11). In this embodiment, the external thread portion (11) is a right-handed external thread portion. In addition, in other embodiments not shown, the external thread portion (11) is a left-handed external thread portion.

The positioning component (2) is provided with a positioning member (21) and an adjusting member (22). The positioning member (21) has a positioning internal thread portion (211), and the adjusting member (22) has an adjusting internal thread portion (221), And the positioning member (21) and the adjusting member (22) are threadedly engaged with the external threaded portion (11) of the connecting member (1) through the positioning internal thread portion (211) and the adjusting internal thread portion (221), so that the positioning element (21) ) The screw connector (1) is close to one side of the head (12), and the adjustment member (22) is screwed to the other side of the head (12).

The adjusting structure (3) has a first convex portion (31), a second convex portion (32) and at least one resisting surface (33), and the first convex portion (31) and the second convex portion (32) are The two opposing surfaces of the positioning member (21) and the adjusting member (22) provided on the positioning assembly (2). In this embodiment, the abutment surface (33) is formed by the obliquely upward rotation of the bottom end of the first convex portion (31) toward the direction of the second convex portion (32). In addition, in other non-illustrated embodiments, the abutment surface (33) is formed by diagonally rising the bottom end of the second convex portion (32) toward the direction of the first convex portion (31). In addition, no matter how the abutment surface (33) is defined, under the condition that the external thread portion (11) is a right-handed external thread portion, the line (D) parallel to the head is assumed to be the X axis, and the abutment surface (33) The slope of the straight line (L) and the slope of the external thread part (11) derived from the parallel are positive, and the slope of the straight line (L) derived from the resisting surface (33) is greater than the slope of the external thread part (11) . On the other hand, no matter how the abutment surface (33) is defined, assuming that the externally threaded portion (11) is a left-handed externally threaded portion, assuming that the straight line (D) parallel to the head is the X axis, the abutment surface (33) The slope of the straight line (L) and the slope of the external thread (11) derived from the parallel are both negative, and the slope of the straight line (L) derived from the resisting surface (33) is smaller than the slope of the external thread (11) .

By the way, when using the present invention, the first convex portion (31) and the second convex portion (32) abut against each other, and then continue to rotate the adjusting member (22) toward the head (12) to make the second convex portion ( 32) Push the first convex portion (31), so that the positioning member (21) rotates and locks with the adjusting member (22) on the connecting member (1) until the adjusting member (22) rotates to an appropriate position. Next, as shown in FIG. 4, the adjustment member (22) is rotated toward the side away from the head (12). Please refer to FIG. 3 to define the acute angle between the straight line (L) and the straight line (D) (hereinafter specifically expressed as θ1) and the acute angle between the external thread portion (11) and the straight line (D) (hereinafter specifically referred to as θ2 means). After the adjusting member (22) rotates away from the head (12), the projection distance of the second convex portion (32) on the straight line (D) is defined as S, so the second convex portion (32) faces away from the head One of the parts (12) actually moves the distance of S x tan(θ2). In addition, since the slope of the straight line (L) derived parallel to the resisting surface (33) is greater than the slope of the external thread portion (11), the angle θ1 must be greater than the angle θ2. It can be seen that when the adjustment member (22) is rotated away from the head (12), the actual moving distance S x tan (θ2) of the second convex portion (32) is of course smaller than that of the second convex portion (32) The holding surface (33) moves away from the head (12) by a distance S x tan(θ1). This means that turning the adjustment member (22) away from the head (12) will cause the second convex portion (32) to gradually approach and resist the resisting surface (33), thereby eliminating the positioning member (21) The screw pitch between the internal thread part (211) and the adjustment part (22) of the internal thread part (221) and the external thread part (11) is positioned to produce a positioning effect. To cancel this positioning effect, just place the positioning piece (21) Unscrew toward the side away from the head (12), and let the first convex portion (31) push the second convex portion (32) to drive the adjustment member (22) to rotate.

Please refer to FIGS. 5 and 6, it can be clearly seen from the figure that when the present invention needs to produce anti-disassembly effect, only the positioning member (21) of the positioning assembly (2) is located in the through hole (41) of the object (4) ), that is, the positioning state of the positioning member 21 and the adjusting member 22 cannot be released by rotating the positioning member 21, and the effect of positioning and disassembly can be achieved.

In addition, it should be stated that in other embodiments not shown, the external thread portion (11) of the connector (1) is replaced with an internal thread portion, and the positioning internal thread portion (211) of the positioning element (21) After the adjustment of the internal thread part (221) of the adjustment part (22) is replaced by an external thread part, the invention can also achieve the effect of positioning or anti-disassembly of the connection part (1) and the adjustment part (22).

(1)‧‧‧Connector

(11)‧‧‧Male thread

(12)‧‧‧Head

(2)‧‧‧Positioning components

(21)‧‧‧Locating parts

(22)‧‧‧Adjustment

(3)‧‧‧Adjust the structure

(31)‧‧‧First convex

(32)‧‧‧Second convex part

(33)‧‧‧resistance

(D)‧‧‧straight line

(L)‧‧‧straight line

Claims (3)

An adjustable positioning device includes: a connecting member provided with a connecting threaded portion and a head opposite to the connecting threaded portion; a positioning component having a positioning component and an adjusting component, the positioning component having a thread The positioning screw portion of the connecting threaded portion of the engaging portion is screwed to the side of the connecting member close to the head, the adjusting member has a thread to engage another adjusting screw portion of the connecting threaded portion and screwing the connecting member away from the head The other side of the portion; and an adjustment structure having two convex portions and at least one resisting surface, the convex portions are respectively disposed on two opposing surfaces of the positioning member of the positioning component and the adjusting member, the resisting surface is It is formed by the bottom end of one of the convex portions rotating diagonally upward in the direction of the other convex portion, and under the condition that the connecting screw portion is a right-handed screw portion, a straight line parallel to the head is assumed to be the X axis, The slope of a straight line derived parallel to the resisting surface is greater than the slope of the connecting threaded portion, or under the condition that the connecting threaded portion is a left-handed threaded portion, the straight line parallel to the head is assumed to be the X axis, and the resisting surface The slope of the parallel-derived straight line is smaller than the slope of the connecting screw portion; thereby, by using the convex portions to abut against each other, when the adjusting member rotates on the connecting member close to the head, the positioning member is simultaneously pushed to rotate close The head; and when the adjusting member rotates away from the head, the convex portion of the unconnected resisting surface will gradually approach and resist the resisting surface, thereby eliminating the positioning screw portion and the adjusting screw portion and the The thread pitch between the connecting thread parts produces a positioning effect. The adjustable positioning device according to claim 1, wherein the connecting threaded portion is an external threaded portion, and the positioning threaded portion and the adjusting threaded portion are both internal threaded portions. The adjustable positioning device as described in claim 1, wherein the connecting thread portion is an internal thread portion, and the positioning thread portion and the adjusting thread portion are both an external thread portion.

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