CN210599802U - Rotation stopping piece and T-shaped bolt connecting assembly - Google Patents

Abstract

The utility model relates to a spline piece and T type bolt coupling assembling. A rotation stop for preventing rotation of a T-bolt mounted to a channel, the rotation stop comprising: the first matching piece is provided with a first rotation stopping part and a first matching part opposite to the first rotation stopping part; the first matching piece is arranged in the channel, and an accommodating position for accommodating the bolt head of the T-shaped bolt is formed between the first rotation stopping part and the first matching part; and a second mating member having a second rotation stop portion; the second fitting piece sets up in the one end that holds the position and be close to first cooperation portion, and first rotation stopping portion and second rotation stopping portion are used for respectively and offset the cooperation with the bolt head opposite sides of T type bolt to prevent T type bolt rotation.

Description

Rotation stopping piece and T-shaped bolt connecting assembly

Technical Field

The utility model relates to a building fastening technical field especially relates to a spline piece and T type bolt coupling assembling.

Background

The pre-buried channel technology has been widely applied to occasions such as city utility corridors, rail transit, buildings and the like due to the advantages of high construction efficiency, high safety, good corrosion resistance and the like. And the embedded channel is preset in the building concrete during construction. The connected piece is fixed on the embedded channel through the T-shaped bolt. When the T-shaped bolt is installed, the bolt head of the T-shaped bolt is firstly placed in the embedded channel, then the direction of the T-shaped bolt is rotated, the two lengthwise ends of the bolt head are abutted to the inner bent edge of the embedded channel, the nut is screwed, and the T-shaped bolt is fixed on the embedded channel.

However, when the load borne by the T-shaped bolt is large, the load is dynamic load or the construction is not standard, the nut is easy to loosen, and the T-shaped bolt may rotate, resulting in safety accidents.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a rotation stopping member and a T-bolt connecting assembly for overcoming the above-mentioned defects, in order to solve the problems that when the load borne by the conventional T-bolt is large, the load is dynamic, or the construction is not standardized, the nut is easy to loosen, and the T-bolt may rotate to cause a safety accident.

A rotation stop for preventing rotation of a T-bolt mounted to a channel, the rotation stop comprising:

the first matching piece is provided with a first rotation stopping part and a first matching part opposite to the first rotation stopping part; the first matching piece is arranged in the channel, and an accommodating position for accommodating a bolt head of the T-shaped bolt is formed between the first rotation stopping part and the first matching part; and

the second fitting piece is provided with a second rotation stopping part; the second matching piece is arranged at one end, close to the first matching portion, of the accommodating position, and the first rotation stopping portion and the second rotation stopping portion are used for being respectively abutted and matched with two opposite sides of a bolt head of the T-shaped bolt so as to prevent the T-shaped bolt from rotating.

When the T-shaped bolt is assembled, the rotation stopping piece firstly places the first fitting piece in the groove. Then the bolt head of the T-shaped bolt is put into the channel in parallel with the extending direction of the channel and is positioned in the accommodating position of the first mating member. And then the T-shaped bolt is rotated along one direction until the two lengthwise ends of the T-shaped bolt are abutted against the inner walls of the two opposite sides of the channel. Finally, the second matching piece is arranged at one end, close to the first matching piece, of the containing position, so that the first rotation stopping portion of the first matching piece and the second rotation stopping portion of the second matching piece are respectively abutted and matched with two opposite sides of the bolt head of the T-shaped bolt, and the T-shaped bolt is prevented from rotating. Therefore, the rotation stopping piece effectively prevents the T-shaped bolt from rotating, and safety accidents are avoided.

In one embodiment, the distance between the first rotation stop part and the first matching part is larger than the length dimension of the bolt head of the T-shaped bolt;

the distance between the first rotation stopping part and the second rotation stopping part is smaller than the length of the bolt head of the T-shaped bolt. Therefore, the T-shaped bolt is convenient to rotate when being assembled, so that the two lengthwise ends of the bolt head of the T-shaped bolt are respectively abutted against the inner walls of the two opposite sides of the channel, and the nut is convenient to tighten. And the first rotation stopping part and the second rotation stopping part can be in butt fit with two opposite sides of the bolt head, so that the bolt head of the T-shaped bolt is prevented from rotating.

In one embodiment, the first rotation preventing portion and the first fitting portion extend to an opening of the channel to prevent the first fitting from rotating. Therefore, the rotation stopping effect of the rotation stopping piece on the T-shaped bolt is better.

In one embodiment, the second mating member further has a second mating portion opposite to the second rotation stop portion, and the second mating portion abuts against the first mating portion to limit the second mating member in the accommodating position;

the second rotation preventing portion and the second matching portion extend to the opening of the channel to prevent the second matching piece from rotating. Therefore, the rotation stopping effect on the T-shaped bolt is better.

In one embodiment, the first mating member further has an elastic portion located between the first rotation stop portion and the first mating portion, and the elastic portion is configured to abut against a bolt head of the T-bolt to provide a pre-tightening force for the T-bolt to have a movement tendency of penetrating out of the opening of the channel. Therefore, the elastic part can enable the bolt head of the T-shaped bolt to be tightly attached to the inner wall of the channel, the mounting stability of the T-shaped bolt is further improved, and the T-shaped bolt is prevented from rotating.

A rotation stopping piece is used for preventing a T-shaped bolt arranged in a channel from rotating and is provided with a rotation stopping part and a matching part opposite to the rotation stopping part;

an accommodating position for accommodating a bolt head of the T-shaped bolt is formed between the rotation stopping part and the matching part;

the matching part is operable to bend towards one side of the rotation stopping part, and the matching part comprises a matching position in the bending process; when the matching part is located at the matching position, the matching part is abutted and matched with the screw rod of the T-shaped bolt, and the rotation stopping part is abutted against one side of the bolt head of the T-shaped bolt, so that the T-shaped bolt is prevented from rotating.

In the rotation stopping member in this embodiment, when the T-bolt is assembled, the rotation stopping member is first placed in the channel. Then the bolt head of the T-shaped bolt is placed into the channel in parallel with the extending direction of the channel and is positioned in the accommodating position of the rotation stopping piece. And then the T-shaped bolt is rotated along a direction until the two lengthwise ends of the bolt head of the T-shaped bolt are abutted against the inner walls of the two opposite sides of the channel and cannot rotate continuously along the direction. And finally, pulling the matching part of the rotation stopping piece to enable the matching part to be bent to a matching position towards one side of the rotation stopping part, wherein the matching part is abutted and matched with a screw rod of the T-shaped bolt, and the rotation stopping part is abutted against one side of a bolt head of the T-shaped bolt, so that the T-shaped bolt is prevented from rotating. Therefore, the rotation stopping piece effectively prevents the T-shaped bolt from rotating, and safety accidents are avoided.

In one embodiment, the rotation stopping piece further has an elastic part, the elastic part is located between the rotation stopping part and the matching part, and the elastic part is used for abutting against a bolt head of the T-shaped bolt so as to provide pre-tightening force for enabling the T-shaped bolt to have a movement trend of penetrating out of the opening of the channel. Therefore, the elastic part can enable the bolt head of the T-shaped bolt to be tightly attached to the inner wall of the channel, the mounting stability of the T-shaped bolt is further improved, and the T-shaped bolt is prevented from rotating.

A T-bolt connection assembly comprising a channel, a T-bolt and a rotation stop member as described in any one of the above;

the rotation stopping piece is arranged in the channel, and the bolt head of the T-shaped bolt is arranged in the accommodating position.

A rotation stopping piece is used for preventing a T-shaped bolt installed in a channel from rotating and is provided with at least one through hole and at least one rotation stopping part along the longitudinal direction;

each through hole is used for a screw rod of the T-shaped bolt to penetrate through, the rotation stopping part is positioned on at least one side of each through hole in the longitudinal direction of the rotation stopping part, and the rotation stopping part is used for abutting against and matching with a bolt head of the T-shaped bolt so as to prevent the T-shaped bolt from rotating.

In the rotation stopping member in this embodiment, when the T-shaped bolt is assembled, the bolt head of the T-shaped bolt is first placed in the channel, and the T-shaped bolt is rotated in one direction until the two lengthwise ends of the bolt head of the T-shaped bolt abut against the inner walls of the two opposite sides of the channel and cannot be rotated continuously in the one direction. Then, the rotation stopping piece is installed, so that a screw rod of the T-shaped bolt penetrates through a through hole of the rotation stopping piece, the rotation stopping part extends into the channel and is abutted and matched with a bolt head of the T-shaped bolt, and the T-shaped bolt is prevented from rotating. Therefore, the rotation stopping piece effectively prevents the T-shaped bolt from rotating, and safety accidents are avoided. It will be appreciated that the rotation stop member cannot rotate because the rotation stop extends into the channel.

A T-bolt connection assembly comprises a channel, a T-bolt and a rotation stopping piece in the embodiment;

the T-shaped bolt comprises a bolt head and a screw rod, the bolt head is limited in the channel, the screw rod penetrates out of the channel and penetrates through the through hole of the rotation stopping piece, and the rotation stopping part of the rotation stopping piece extends into the channel and abuts against one side of the bolt head to prevent the T-shaped bolt from rotating.

Drawings

FIG. 1 is a schematic view of a prior art T-bolt assembly in a channel;

FIG. 2 is a schematic view of the T-bolt of FIG. 1 in an assembled state with the bolt head and the slot;

FIG. 3 is a schematic view of another assembled state of the bolt head and the channel of the T-bolt shown in FIG. 1;

fig. 4 is a schematic view of an assembly structure of a rotation stopping member and a T-shaped bolt according to a first embodiment of the present invention;

FIG. 5 is a schematic structural view of the rotation stop member shown in FIG. 4;

FIGS. 6 to 9 are views illustrating an assembly process of the rotation stopper shown in FIG. 5 with the T-bolt;

FIG. 10 is a schematic structural view of a rotation stop member with a first rotation stop portion and a second rotation stop portion disposed obliquely;

fig. 11 is a schematic structural view of a rotation stop member according to a second embodiment of the present invention;

FIG. 12 is a front view of the engagement portion of the rotation stop member shown in FIG. 11 in an engaged position;

FIG. 13 is a side view of the rotation stop member shown in FIG. 12;

FIG. 14 is a schematic view of an assembly structure of the rotation stop member and the T-bolt shown in FIG. 11;

fig. 15 is a schematic view of an assembly structure of a rotation stopping member and a T-shaped bolt according to a third embodiment of the present invention;

FIG. 16 is a front view of the rotation stop member shown in FIG. 15;

FIG. 17 is a side view of the rotation stop member shown in FIG. 16;

FIG. 18 is a schematic view of the engagement of the rotation stop member shown in FIG. 15 with the bolt head of the T-bolt;

FIG. 19 is a schematic structural view of a rotation stopping member having rotation stopping portions disposed on opposite sides of a through hole;

FIG. 20 is a schematic view showing a structure of a rotation stopper having a rotation stopper portion inclined;

fig. 21 is a schematic view showing a fitting structure of a rotation stopper provided with a rotation stopper inclined to a rotation stop portion and a bolt head of a T-shaped bolt.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1 shows a schematic view of an assembly structure of a T-shaped bolt and a channel in the prior art. Fig. 2 and 3 show the orientation of the bolt head and the channel of the T-bolt.

Before the utility model discloses a spline and T type bolt coupling assembling carry out the detailed description, explain the assembly of T type bolt and channel.

Referring to fig. 1 to 3, since the length dimension of the bolt head 102 of the T-bolt 100 is greater than the width dimension of the opening 202 of the channel 200 (i.e., the dimension of the opening 202 in the horizontal direction as shown in fig. 2), the width dimension of the bolt head 102 of the T-bolt 100 is smaller than the width dimension of the opening 202 of the channel 200. Therefore, when T-bolt 100 is assembled in channel 200, it is first necessary to rotate the direction of T-bolt 100 so that the longitudinal direction of bolt head 102 of T-bolt 100 coincides with the extending direction of channel 200, so as to put bolt head 102 of T-bolt 100 into channel 200 from the opening of channel 200 (as shown in fig. 2). Then, the direction of the T-shaped bolt 100 is rotated, so that the two lengthwise ends of the bolt head 102 of the T-shaped bolt 100 are respectively abutted against the inner walls of the two opposite sides of the channel 200 (as shown in fig. 3), on one hand, the bolt head 102 of the T-shaped bolt 100 is prevented from being pulled out of the channel 200; on the other hand, when the nut 400 is tightened to the screw of the T-bolt 100, the T-bolt 100 does not rotate following the nut 400. It will be appreciated that the connected piece a is located between the nut 400 and the channel 200, and is secured to the channel 200 by tightening the nut 400 (i.e., rotating the nut 400 in a clockwise direction). To prevent the nut 400 from loosening, a spring washer 300 is generally provided between the nut and the connected piece a.

As shown in fig. 3, when the load applied to the T-bolt 100 is large, the load is dynamic, or the construction is not standardized, the anti-loosening function of the spring washer 300 is prone to fail. After the nut is loosened, the T-bolt 100 cannot rotate clockwise due to the limiting effect of the inner walls of the opposite sides of the channel 200 on the bolt head 102 of the T-bolt 100. However, in the counterclockwise direction and for limiting the T-shaped bolt, the T-shaped bolt 100 can rotate in the counterclockwise direction, so that the longitudinal direction of the bolt head 102 of the T-shaped bolt 100 is consistent with the extending direction of the channel 200, and the T-shaped bolt 100 can be pulled out from the opening 202 of the channel 200, resulting in connection failure and falling-off accident. Therefore, it is necessary to provide a rotation stopper for preventing the rotation of the T-bolt 100 and a T-bolt 100 connecting assembly.

Fig. 4 shows an assembly structure diagram of the rotation stopping member and the T-shaped bolt according to the first embodiment of the present invention. Fig. 5 shows a schematic structural view of the rotation preventing member shown in fig. 4. Fig. 6 to 9 show the installation process of the T-bolt. For the purpose of illustration, the drawings show only the structures pertinent to the present invention.

Referring to fig. 4 to 9, a rotation stopping member 10 according to a first embodiment of the present invention includes a first mating member 12 and a second mating member 14. The first mating member 12 has a first rotation stop portion 12a and a first mating portion 12b opposite to the first rotation stop portion 12 a. The first fitting member 12 is disposed in the groove 200, and a receiving position h for receiving the bolt head 102 of the T-bolt 100 is formed between the first rotation stop portion 12a and the first fitting portion 12 b.

The second fitting member 14 has a second rotation stop portion 14 a. The second mating member 14 is disposed at an end of the accommodating position h close to the first mating portion 12b, and the first rotation stopping portion 12a and the second rotation stopping portion 14a are respectively configured to be abutted against and matched with two opposite sides of the bolt head 102 of the T-shaped bolt 100, so as to prevent the T-shaped bolt 100 from rotating.

When assembling the T-bolt 100, the rotation preventing member first places the first fitting member 12 in the groove 200 (as shown in fig. 6). The head 102 of the T-bolt 100 is then placed into the channel 200 parallel to the extension of the channel 200 and located in the receiving position h of the first mating member 12 (see fig. 7). The T-bolt 100 is then rotated in one direction (clockwise in the embodiment shown in fig. 8) until the lengthwise ends of the T-bolt 100 abut the inner walls of the channel 200 on opposite sides (as shown in fig. 8). Finally, the second mating member 14 is placed at the accommodating position h close to one end of the first mating member 12, so that the first rotation stop portion 12a of the first mating member 12 and the second rotation stop portion 14a of the second mating member 14 are respectively engaged against opposite sides of the bolt head 102 of the T-bolt 100 to prevent the T-bolt 100 from rotating (as shown in fig. 9). Thus, the rotation stopping piece effectively prevents the T-shaped bolt 100 from rotating, and safety accidents are avoided.

In specific embodiments, the distance between the first rotation stop portion 12a and the first fitting portion 12b is greater than the length of the bolt head 102 of the T-bolt 100. In this manner, it is convenient to rotate the orientation of the T-bolt 100 when assembling the T-bolt 100 so that the lengthwise ends of the bolt head 102 of the T-bolt 100 abut against the inner walls of the opposite sides of the channel 200, respectively, to facilitate tightening of the nut 400.

In specific embodiments, the distance between the first rotation stop portion 12a and the second rotation stop portion 14a is smaller than the length of the bolt head 102 of the T-shaped bolt 100. In this manner, the first rotation stop portion 12a and the second rotation stop portion 14a can be engaged against opposite sides of the bolt head 102, thereby preventing the bolt head 102 of the T-bolt 100 from rotating.

Note that, the length dimension of the bolt head 102 of the T-shaped bolt 100 is the dimension in the longitudinal direction of the bolt head 102. Specifically, in the embodiment shown in fig. 7, the dimension of the bolt head 102 in the vertical direction is the length dimension of the bolt head 102.

In one embodiment, the first rotation stop portion 12a and the first engaging portion 12b extend to the opening 202 of the slot 200 to prevent the first engaging member 12 from rotating. Therefore, the rotation stopping effect of the rotation stopping piece on the T-shaped bolt 100 is better.

Specifically, in the embodiment, the second mating member 14 further has a second mating portion 14b opposite to the second rotation stop portion 14a, and the second mating portion 14b abuts against the first mating portion 12b to limit the second mating member 14 within the accommodating position h. In this way, the bolt head 102 and the second fitting member 14 of the T-shaped bolt 100 are respectively located between the first fitting member 12 and the first rotation stop portion 12a, and the second fitting portion 14b and the second rotation stop portion 14a of the second fitting member 14 respectively abut against the first fitting portion 12b and the bolt head 102 of the T-shaped bolt 100, so that the second fitting member 14 is limited between the T-shaped bolt 100 and the first fitting portion 12 b.

In one embodiment, the second rotation-stopping portion 14a and the second engaging portion 14b extend to the opening 202 of the slot 200 to prevent the second engaging member 14 from rotating. Thus, the rotation stopping effect on T-bolt 100 is better.

In the embodiment, the first fitting member 12 further has an elastic portion 12 d. The elastic portion 12d is located between the first rotation-stopping portion 12a and the first matching portion 12b, and the elastic portion 12d is used for abutting against the bolt head 102 of the T-shaped bolt 100 so as to provide a pre-tightening force for enabling the T-shaped bolt 100 to have a movement tendency of penetrating through the opening of the channel 200. Thus, the elastic part 12d can make the bolt head 102 of the T-shaped bolt 100 tightly contact with the inner wall of the channel 200, further improving the stability of the installation of the T-shaped bolt 100 and being beneficial to preventing the T-shaped bolt 100 from rotating. Optionally, the elastic part 12d is a spring.

It will be appreciated that the resilient portion 12d is not required, and in other embodiments, the first mating member 12 may not be provided with the resilient portion 12 d.

In the embodiment, the first mating member 12 further includes a first connecting portion 12 c. The first rotation-stopping portion 12a and the first engaging portion 12b are fixedly connected to one side of the first connecting portion 12 c. Further, the first rotation stopping portion 12a and the first matching portion 12b are respectively located at two longitudinal ends of the first connecting portion 12 c. The elastic portion 12d is located on the connecting portion 12c between the first rotation preventing portion 12a and the first fitting portion 12 b.

In an embodiment, the first rotation stop portion 12a, the first fitting portion 12b and the first connecting portion 12c of the first fitting member 12 are sheet-shaped. The first rotation-stopping portion 12a and the first mating portion 12b are perpendicular to the first connecting portion 12 c. I.e. the first fitting part 12 is a U-shaped part. Alternatively, the first rotation preventing portion 12a, the first matching portion 12b and the first connecting portion 12c are integrally formed, for example, by injection molding or stamping. Therefore, the forming process is mature in technology, suitable for mass production and beneficial to reducing the manufacturing cost.

In an embodiment, the second fitting member 14 further includes a second connecting portion 14c connecting the second fitting portion 14b and the second rotation stopping portion 14 a. The second engaging portion 14b and the second rotation stopping portion 14a are both fixedly connected to one side of the second connecting portion 14 c. Furthermore, the second matching portion 14b, the second rotation stop portion 14a and the second connecting portion 14c are all in a sheet shape, and the second rotation stop portion 14a and the second matching portion 14b are perpendicular to the second connecting portion 14 c. I.e. the second fitting part 14 is a U-shaped part. Alternatively, the second rotation preventing portion 14a, the second matching portion 14b and the second connecting portion 14c are integrally formed, for example, by injection molding or stamping. Therefore, the forming process is mature in technology, suitable for mass production and beneficial to reducing the manufacturing cost.

Fig. 10 shows the rotation stopper in which the first rotation stopper portion 12a and the second rotation stopper portion 14a are obliquely arranged.

Referring to fig. 10, in an embodiment, the first rotation stop portion 12a extends along one side of the first connection portion 12c and slants with respect to the longitudinal direction of the first connection portion, so that the first rotation stop portion 12a fits with one side of the bolt head 102 of the T-bolt 100.

The second rotation preventing portion 14a extends along one side of the second connecting portion 14c in an inclined manner with respect to the longitudinal direction of the second connecting portion, so that the second rotation preventing portion 14a is fitted to the other side of the T-bolt 100 opposite to the bolt head.

In this way, the first rotation stopping portion 12a and the second rotation stopping portion 14a are in surface contact with the bolt head 102 of the T-shaped bolt 100, so that the bearing area is large, the abutting structure is stable, and the rotation stopping effect on the T-shaped bolt 100 is better. Alternatively, the first rotation preventing portion 12a and the second rotation preventing portion 14a are respectively at any angle between 60 °, 90 ° or 60 ° and 90 ° with the longitudinal direction of the first connecting portion 12c and the longitudinal direction of the second connecting portion 14 c.

Fig. 11 shows a schematic structural view of a rotation stopper according to a second embodiment of the present invention. Fig. 12 shows a front view of the engagement portion of the rotation stop member of fig. 11 in an engaged position. Fig. 13 shows a side view of the rotation stop of fig. 12. Fig. 14 shows an assembly structure of the rotation stopper and the T-bolt in fig. 11.

As shown in fig. 11 to 14, a rotation stop member 20 for preventing a T-bolt 100 installed in a channel 200 from rotating is provided in a second embodiment of the present invention. The rotation stopper 20 has a rotation stopper portion 20a and an engaging portion 20b opposite to the rotation stopper portion 20 a. A receiving space h for receiving the bolt head 102 of the T-bolt 100 is formed between the rotation stop portion 20a and the mating portion 20 b. The engaging portion 20b is operatively bent toward the rotation stop portion 20a side. The mating portion 20b includes a mating position during bending (as shown in fig. 11, 12 or 13). When the engaging portion 20b is in the engaging position, the engaging portion 20b is engaged against the screw 104 of the T-bolt 100, and the rotation stop portion 20a is engaged against one side of the bolt head 102 of the T-bolt 100, so that the T-bolt 100 is prevented from rotating.

In the rotation preventing member 20 of this embodiment, when assembling the T-bolt 100, the rotation preventing member 20 is first placed in the groove 200. Then, the bolt head 102 of the T-shaped bolt 100 is placed into the channel 200 in parallel with the extending direction of the channel 200, and is located in the accommodating position h of the rotation stop member 20. And then the T-bolt 100 is rotated along a direction until the two lengthwise ends of the bolt head 102 of the T-bolt 100 abut against the inner walls of the two opposite sides of the channel 200 and cannot be rotated continuously along the direction. Finally, the engaging portion 20b of the rotation stop member 20 is pulled to bend the engaging portion 20b to an engaging position toward one side of the rotation stop portion 20a, at this time, the engaging portion abuts against the screw of the T-shaped bolt 100, and the rotation stop portion abuts against one side of the bolt head 102 of the T-shaped bolt 100, thereby preventing the T-shaped bolt 100 from rotating. Thus, the rotation stopping piece effectively prevents the T-shaped bolt 100 from rotating, and safety accidents are avoided.

In particular embodiments, the mating portion 20b has an arcuate recess 20d that mates with the threaded shank 104 of the T-bolt 100. Thus, the arc-shaped concave portion 20d can be attached to the cylindrical surface of the screw 104 of the T-bolt 100, so that the structure of the engagement portion abutting against the T-bolt 100 is more stable, and the rotation stopping effect of the T-bolt 100 is better.

In an embodiment, the rotation stopping member 20 further has an elastic portion 12d, the elastic portion 20e is located between the rotation stopping portion 20a and the matching portion 20d, and the elastic portion 20e is used for abutting against the bolt head 102 of the T-bolt 100 to provide a pre-tightening force for the T-bolt 100 to have a movement tendency of penetrating through the opening 202 of the channel 200. Thus, the elastic portion 20e can make the bolt head 102 of the T-bolt 100 tightly contact with the inner wall of the channel 200, further improving the stability of the installation of the T-bolt 100, and being beneficial to preventing the T-bolt 100 from rotating. Optionally, the elastic portion 20e is a spring.

It is understood that the elastic portion 20e is not essential, and in other embodiments, the rotation stop member 20 may not be provided with the elastic portion 20 e.

In one embodiment, the rotation preventing portion 20a and the engaging portion 20b extend to the opening 202 of the channel 200 to prevent the rotation of the rotation preventing member 20. Thus, the rotation stopping effect on T-bolt 100 is better.

In the embodiment, the rotation stop member 20 further includes a connecting portion 20c connecting the rotation stop portion 20a and the fitting portion 20 b. Further, the rotation stop portion 20a and the engaging portion 20b are respectively fixedly connected to two longitudinal ends of the connecting portion 20c and extend toward one side of the connecting portion 20 c.

In the embodiment, the rotation stop portion 20a, the connecting portion 20c and the engaging portion 20b are all in the shape of a sheet. It will be appreciated that in order to allow the rotation stop 20a to engage one side of the T-bolt 100, the rotation stop 20a may be inclined to the side wall of the opening 202 of the channel 200. Thus, the abutting engagement between the rotation stop portion 20a and the T-bolt 100 is more stable, so that the rotation stop effect of the T-bolt 100 is better.

In the embodiment, the rotation stop portion 20a, the connecting portion 20c and the matching portion 20b are integrally formed. The plastic can be integrally formed by a process such as injection molding or stamping. Therefore, the forming process is mature in technology, suitable for mass production and beneficial to reducing the manufacturing cost.

Alternatively, the rotation stopping member 20a in the present embodiment may be a bendable plastic or metal member, etc., and is not limited herein, as long as the matching portion 20b can be bent to match against the screw 104 of the T-bolt 100.

In an embodiment, when the engaging portion 20b is in the initial position (i.e., before bending), the distance between the engaging portion 20b and the rotation stop portion 20a is greater than the length of the bolt head 102 of the T-bolt 100, so that the T-bolt 100 can rotate in the accommodating position h.

In the embodiment, the rotation stop portion 20a extends along one side of the connecting portion 20c and slants with respect to the longitudinal direction of the connecting portion 20, so that the connecting portion 20c fits with one side of the bolt head 102 of the T-bolt 100. Thus, the rotation stopping part 20a is in surface contact with the bolt head 102 of the T-shaped bolt 100, the stress area is large, the abutting structure is stable, and the rotation stopping effect on the T-shaped bolt 100 is better. Optionally, the rotation stop portion 20a is at an angle of 60 °, 90 ° or any angle between 60 ° and 90 ° with the longitudinal direction of the connecting portion 20 c.

Fig. 15 shows an assembly structure diagram of a rotation stopping member and a T-shaped bolt in a third embodiment of the present invention. Fig. 16 shows a front view of the rotation stop member shown in fig. 15. Fig. 17 shows a side view of the rotation stop member shown in fig. 16. Fig. 18 shows a schematic view of the rotation stop member of fig. 15 engaged with the bolt head of the T-bolt. Fig. 19 shows a rotation stop member in which rotation stop portions are provided on opposite sides of a through-hole. Fig. 20 shows the rotation stopper with the rotation stopper obliquely disposed. Fig. 21 shows a fitting structure of a rotation stopper provided for the rotation stopper to a bolt head of a T-bolt.

As shown in fig. 15 to 18, a rotation stopper 30 for preventing a T-bolt 100 installed in a channel 200 from rotating is provided in a third embodiment of the present invention. The rotation stopper 30 in this embodiment has at least one through hole 30b and at least one rotation stopper 30a along the longitudinal direction thereof.

Each through hole 30b is used for a screw 104 of a T-bolt 100 to pass through. The rotation stopper 30a is located at least one side of each of the through holes 30b in the longitudinal direction of the rotation stopper 30. The rotation stopper 30a is adapted to engage against the bolt head 102 of the T-bolt 100 to prevent the T-bolt 100 from rotating.

In the rotation stop member 30 of this embodiment, when the T-shaped bolt 100 is assembled, the bolt head 102 of the T-shaped bolt 100 is first placed in the channel 200, and the T-shaped bolt 100 is rotated in a direction until the two lengthwise ends of the bolt head 102 of the T-shaped bolt 100 abut against the inner walls of the two opposite sides of the channel 200 and cannot rotate continuously in the direction. Then, the rotation stopper is installed such that the screw 104 of the T-bolt 100 is inserted into the through hole 30b of the rotation stopper 30, and the rotation stopper 30a extends into the groove 200 and is engaged against the bolt head 102 of the T-bolt 100, thereby preventing the T-bolt 100 from rotating. Thus, the rotation stop member 30 effectively prevents the T-bolt 100 from rotating, thereby preventing safety accidents. It will be appreciated that the rotation stop 30 is not able to rotate because the rotation stop 30a extends into the channel 200.

It is understood that each of the through holes 30b is provided with a rotation stopper 30a at one side in the longitudinal direction of the rotation stopper 30. In another embodiment, each of the through holes 30b is provided with rotation stopping portions 30a at opposite sides of the rotation stopping member 30 in the longitudinal direction. That is, two rotation stoppers 30a are provided between each adjacent two of the through holes 30 b. In this way, the two rotation stoppers 30a located on the opposite sides of the through hole 30b can be respectively abutted against the opposite sides of the bolt head 102 of the T-bolt 100, and the T-bolt 100 can be more effectively prevented from rotating.

It is understood that when it is necessary to install a plurality of T-bolts 100 in the channel 200, the screw 104 of each T-bolt 100 can be inserted into the corresponding through hole 30b of the rotation stop member 30. That is, the through-holes 30b and the rotation stopper 30a may be provided in a corresponding number according to the number of the T-bolts 100, and the T-bolts 100 may be prevented from rotating at the same time. Thus, it is not necessary to provide one rotation stopper 30 for each T-bolt 100, which is advantageous for cost reduction.

In the embodiment, the rotation stopper 30 is formed in a sheet shape, and each rotation stopper 30a is connected to one side of the rotation stopper 30. Alternatively, the rotation stop member may be formed by injection molding or press molding. Therefore, the forming process is mature in technology, suitable for mass production and beneficial to reducing the manufacturing cost.

Referring to fig. 20 and 21, in the embodiment, the rotation stopping portion 30a extends along one side of the rotation stopping member 30 and slants with respect to the longitudinal direction of the rotation stopping member 30 to fit with the corresponding side of the T-bolt 100. Thus, the rotation stopping part 30a is in surface contact with the bolt head 102 of the T-shaped bolt 100, the stress area is large, the abutting structure is stable, and the rotation stopping effect on the T-shaped bolt 100 is better. Optionally, the rotation stop portion 30a is at an angle of 60 °, 90 ° or any angle between 60 ° and 90 ° with respect to the longitudinal direction of the rotation stop member 30.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A rotation stop for preventing rotation of a T-bolt mounted to a channel, the rotation stop comprising:

the first matching piece is provided with a first rotation stopping part and a first matching part opposite to the first rotation stopping part; the first matching piece is arranged in the channel, and an accommodating position for accommodating a bolt head of the T-shaped bolt is formed between the first rotation stopping part and the first matching part; and

the second fitting piece is provided with a second rotation stopping part; the second matching piece is arranged at one end, close to the first matching portion, of the accommodating position, and the first rotation stopping portion and the second rotation stopping portion are used for being respectively abutted and matched with two opposite sides of a bolt head of the T-shaped bolt so as to prevent the T-shaped bolt from rotating.

2. The rotation stop member according to claim 1, wherein a spacing dimension between the first rotation stop portion and the first mating portion is greater than a length dimension of a bolt head of the T-bolt;

the distance between the first rotation stopping part and the second rotation stopping part is smaller than the length of the bolt head of the T-shaped bolt.

3. The anti-rotation element of claim 1, wherein the first anti-rotation portion and the first engagement portion each extend to an opening of the channel to prevent rotation of the first engagement element.

4. The anti-rotation member as claimed in claim 1, wherein the second fitting member further has a second fitting portion disposed opposite to the second anti-rotation portion, the second fitting portion abutting against the first fitting portion to position the second fitting member in the accommodating position;

the second rotation preventing portion and the second matching portion extend to the opening of the channel to prevent the second matching piece from rotating.

5. The anti-rotation element according to any one of claims 1 to 4, wherein the first mating element further comprises a resilient portion, the resilient portion being located between the first anti-rotation portion and the first mating portion, the resilient portion being configured to abut against a bolt head of the T-bolt to provide pre-tension to the T-bolt with a tendency to move out of the opening of the channel.

6. A rotation stopping member is used for preventing a T-shaped bolt arranged in a channel from rotating and is characterized in that the rotation stopping member is provided with a rotation stopping part and a matching part opposite to the rotation stopping part;

an accommodating position for accommodating a bolt head of the T-shaped bolt is formed between the rotation stopping part and the matching part;

the matching part is operable to bend towards one side of the rotation stopping part, and the matching part comprises a matching position in the bending process; when the matching part is located at the matching position, the matching part is abutted and matched with the screw rod of the T-shaped bolt, and the rotation stopping part is abutted against one side of the bolt head of the T-shaped bolt, so that the T-shaped bolt is prevented from rotating.

7. The anti-rotation device of claim 6, further comprising a resilient portion between the anti-rotation portion and the engagement portion, the resilient portion being configured to abut against a bolt head of the T-bolt to provide a pre-load force tending to cause the T-bolt to move out of the opening of the channel.

8. A rotation stopping member for preventing a T-shaped bolt installed in a channel from rotating is characterized in that the rotation stopping member is provided with at least one through hole and at least one rotation stopping part along the longitudinal direction;

each through hole is used for a screw rod of the T-shaped bolt to penetrate through, the rotation stopping part is positioned on at least one side of each through hole in the longitudinal direction of the rotation stopping part, and the rotation stopping part is used for abutting against and matching with a bolt head of the T-shaped bolt so as to prevent the T-shaped bolt from rotating.

9. A T-bolt connection assembly comprising a channel, a T-bolt and a rotation stop member as claimed in any one of claims 1 to 7;

the rotation stopping piece is arranged in the channel, and the bolt head of the T-shaped bolt is arranged in the accommodating position.

10. A T-bolt connection assembly comprising a channel, a T-bolt and a rotation stop member as claimed in claim 8;

the T-shaped bolt comprises a bolt head and a screw rod, the bolt head is limited in the channel, the screw rod penetrates out of the channel and penetrates through the through hole of the rotation stopping piece, and the rotation stopping part of the rotation stopping piece extends into the channel and abuts against one side of the bolt head to prevent the T-shaped bolt from rotating.

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