TWI614440B - Anti-loose buckle and pipe joint applying the same - Google Patents

Abstract

The invention provides a anti-loose buckle and a pipe joint applying the same for mounting on two sides of the pipe joint body, and capable of holding the inserted one of the nozzles, comprising a fastening handle pivotally connected to the pipe joint body, The fastening handle has a fastening protrusion at one end and an operating handle at the other end; a blocking component that is slidably sleeved on the operating handle, an interlocking component connected to the blocking component and the pipe joint body, and a setting operation Retaining element of the handle. When the fastening handle is in the engaged state, the lower side of the blocking element abuts against the limiting element, so that the fastening handle cannot be reversely released, only when the limiting element is pulled away from the underside of the blocking element. The snap-fit handle can be loosened in the reverse direction, thereby making the snap-fit handle have a loosening function and the operation mode is simpler.

Description

Anti-loose buckle and pipe joint applying the same

The invention relates to a anti-loose buckle for a pipe joint, in particular to a anti-loose buckle which can be used for mounting on a pipe joint body, and thus can be fastened to an insertion pipe joint body, and can prevent loosening and application thereof Pipe joints.

Generally, the pipe joint is applied to a device for conveying liquid, so that the pipe is quickly connected to the nozzle, thereby circulating and conveying liquid such as oil and water, and generally has a pipe joint body, and each of the two sides of the pipe joint body is provided with a fastening handle, and the buckle is provided. The front end of the combined handle has a cam extending into the body of the pipe joint for holding the inserted nozzle. Since the conventional snap-fit handle only has the function of holding the cam to the mouth when it is turned backwards (or downwards), there is no anti-loose mechanism, so the buckle handle is still released forward (or upward). Doubt, should be replaced with a pipe joint with a lock-proof handle. However, the number of pipe joints still in use in the industry is huge. If the button is not protected against the loosening of the handle, the entire pipe joint will be replaced, and the replacement cost of the entire industry will be too large. Therefore, if only the portion of the snap handle can be replaced without removing the pipe joint body, the cost saved is considerable, and the consumer's willingness to replace is also high.

Moreover, although the safety fasteners of some of the pipe joints are designed with other anti-loose structures at the same time, as shown in the patents of US Pat. No. 6,206,431, US Pat. No. 6,364,369, US Pat. No. 5,791, 694, and US Pat. No. 5,911, 144, the structural features shown in the US Pat. No. 6,206,431, must use a padlock to prevent Loose. In the structural feature shown in the US Pat. No. 6,634,369, it is necessary to implement a recessed hole structure corresponding to the handle of the steel ball in the pipe joint, which necessitates replacement of the entire pipe joint, and it is not possible to replace only the snap handle, which would cause an excessive cost of full replacement. In the structure shown in US Pat. No. 5,791,694, the locking mechanism can hold the recess of the cam arms, but the tightness of the fastening is difficult to control, and the locking mechanism buckles the cam. The groove of the arm is too tight, which will cause the cam arm to be unlocked by the user, and if it is too loose, it may lose the safety of the fastening. In addition, the structure shown in US5911445 cannot allow the user to directly pull the interlocking element to release the snap-fit state, and must be moved by a knob to unlock the locking lever. This use will cause inconvenience.

The main object of the present invention is to provide a anti-loose buckle and a pipe joint applying the same, which is improved by the anti-loose buckle for pivoting on the two sides of the quick pipe joint, without having to replace the entire set of quick pipe joints, It can make the pipe joint have a mechanism to prevent loosening.

The second object of the present invention is to provide a anti-loose buckle and a pipe joint applying the same, and when the anti-loose buckle is turned backward (or downward) to buckle a nozzle of the insertion pipe joint, the anti-breaking device is simultaneously activated. The loose mechanism prevents the improper forward (or upward) reversal of the anti-loose buckle.

To achieve the above and other objects, the present invention provides a lock fastener for mounting on both sides of a pipe joint body, and capable of holding a nozzle inserted into the pipe joint body, preferably comprising: a snap handle a blocking member, a linking member and a limiting member; the first end of the fastening handle has a fastening protrusion for pivoting to a first position of the connector body The second end of the fastening handle has an operating handle; the stopping element is sleeved up and down on the operating handle, and the stopping element has a blocking protrusion on an outer side of the operating handle; the linking element The upper end is pivotally connected to a second position of the pipe joint body, and the lower end of the linkage member is disposed through the blocking member. When the fastening handle is turned down to be engaged, the linkage member pulls the blocking member along the The operating handle is moved upward; the limiting member is disposed on the handle of the fastening handle, and the limiting member has an elastic force to continuously abut against the outer side of the operating handle, and the fastening handle is in the engaged state The lower surface of the blocking projection of the blocking element abuts against The stop member, so that the handle can not be turned over engagement; and the constraining element can be pulled away from the outer side surface of the operating handle, so that the engagement of the handle can be turned.

To achieve the above and other objects, the present invention provides a pipe joint using a tamper-evident fastener, comprising: a pipe joint body having a tubular interface portion, two at one side wall, two side walls or four of the interface portion a pivoting seat outside the side wall, and an opening communicating from the two pivoting seats to an inner surface of the side wall of the interface portion, the first position and the second position being a pivot hole disposed in the pivoting seat; The snap protrusion of the snap handle extends from the opening into the interface portion.

The anti-loose buckle of the invention and the pipe joint applying the anti-loose buckle can replace the conventional pipe joint with the anti-loose buckle with the anti-loose function, and the pipe joint body can be used continuously, thereby reducing the replacement cost. The effect. Furthermore, the anti-loose buckle of the present invention can simultaneously perform the anti-loose function when the user does not need to perform other operations when the buckle grip is turned backward (downward) to perform the action of engaging the splice. It can achieve easy operation and reliable anti-loose effect.

In order to fully understand the objects, features and advantages of the present invention, the present invention will be described in detail by the following specific embodiments and the accompanying drawings.

Referring to FIG. 1 and FIG. 2, the present invention is a loosening buckle of the present invention and a pipe joint applying the same, and the locking buckle 10 is used for mounting on one side, two sides or four sides of a pipe joint body 20, A mouthpiece 30 (shown in Figure 6) inserted into the fitting body 20 can be buckled, wherein:

As shown in FIG. 3, FIG. 4 and FIG. 5, the preferred embodiment of the anti-loose fastener 10 includes a fastening handle 1, a blocking element 2, a linking component 3 and a limiting component 4; The fastening handle 1 is for mounting on one side, two sides or four sides of the pipe joint body 20 to thereby fasten the main member of the mouthpiece 30, and the first end thereof has a fastening convex portion 11 and the fastening convex portion The first shaft hole 12 has a first shaft hole 12 for pivoting at a first position 201 of the pipe joint body 20, and the second end of the fastening handle 1 has an operating handle 13 having an outer side surface 131. An inner side surface 132 of the outer side surface 131 has a rib 14 having a retaining member mounting portion 15 at a lower end thereof. The blocking element 2 is sleeved on the operating handle 13 so as to be slidable up and down. The blocking element 2 has a blocking projection 21 on the outer side surface 131 of the operating handle 13, and the blocking projection 21 follows the stop. The elements 2 slide up and down together. The upper end of the linkage member 3 is pivotally connected to a second position 202 of the coupling body 20, and the lower end of the linkage member 3 is disposed through the blocking member 2; therefore, when the fastening handle 1 is turned backward (downward) When the fastening is performed, the interlocking element 3 can be pulled to move the blocking element 2 upward along the operating handle 13 (as shown in FIG. 10 and FIG. 6 ), and vice versa when the fastening handle 1 is to be turned forward (upward) When the disengagement is performed, the interlocking member 3 can be caused to move the stopper member 2 downward along the operating handle 13 (as shown in FIGS. 7 to 9). The limiting component 4 is disposed on the limiting component mounting portion 15 at the lower end of the operating handle 13 of the fastening handle 1 , and the limiting component 4 itself has an elastic force against the outer side surface 131 of the operating handle 13 when When the fastening handle 1 is in the engaged state, the lower surface of the blocking protrusion 21 of the blocking element 2 abuts against the limiting element 4 (as shown in FIG. 7 ), forming a locking mechanism; the limiting component 4 can also be pulled by the user in two directions away from the outer side surface 131 of the operating handle 13 (as shown in FIG. 7), so that the fastening handle 1 can be turned forward (upward) again (as shown in FIG. 8 and FIG. 9). Shown), the snap projection 11 releases the nozzle 30.

The coupling member 3 of the present invention can be used to drive the blocking member 2 to slide up or down when the fastening handle 1 is turned backward (downward) or forward (upward), so that the coupling body is The first position 201 and the second position 202 of the 20 are located at the side of the pipe joint body 20, and the first position 201 and the second position 202 are spaced apart from each other, so when the fastening handle 1 is at the first position 201 When the fulcrum rotates, the interlocking member 3 simultaneously rotates with the second position 202 as a fulcrum (for example, as shown in FIG. 8 to FIG. 10), so that the interlocking member 3 can drive the blocking member as the engaging handle 1 is reversed. Stop element 2 slides up or down.

As shown in FIG. 2, FIG. 4 and FIG. 5, the above embodiment of the blocking element 2 has a sheet body 22 abutting against the outer side surface 131 of the operating handle 13, and is integrally connected to the sheet body 22. The two ends of the second pivoting piece 23; wherein the lower end of the body 22 is formed with the blocking protrusion 21, and the upper surface of the blocking protrusion 21 is a slope 211, and the inclined surface 211 is connected to the outside of the sheet 22. The two pivoting pieces 23 are respectively provided with a first through hole 24, so that the lower end of the linking element 3 passes through the first through hole 24 of the two pivoting pieces 23. The interlocking member 3 is preferably embodied as a C-shaped ring 31. The lower end ring body 32 of the C-shaped ring 31 passes through the first through hole 24, and the two pivot ends 33 of the C-shaped ring 31 are pivotally connected to the pipe joint. The second position 202 of the body 20.

As shown in FIG. 3, FIG. 4 and FIG. 5, the limiting component mounting portion 15 on the inner side of the operating handle 13 of the fastening handle 1 includes a through hole 151 extending through two sides thereof. One side of the side surface is provided with a first insertion hole 152 adjacent to the through hole 151, and the other side of the two side surfaces is provided with a second insertion hole 153 adjacent to the through hole 151. Preferably, the limiting element 4 is configured to have a two-turn spiral ring 41, which may be an elliptical spiral ring or a circular spiral ring or a rectangular spiral ring. The ring body 411 of the spiral ring 41 passes through the through hole 151. The two ends 412 and 413 of the spiral ring 41 are respectively inserted into the first insertion hole 152 and the second insertion hole 153, and the positions of the through holes 151, the first insertion holes 152 and the second insertion holes 153 are arranged. When the spiral ring 41 is assembled, the spiral ring 41 itself has an elastic force to continuously abut against the outer side surface 131 of the operating handle 13 (as shown in FIG. 6 ), and the spiral ring 41 can also be directed by the user to both sides. Pulling away from the outer side 131 of the operating handle 13 (as shown in Figure 7). Furthermore, the spiral ring 41 can be provided with a curved portion 414. When the spiral ring 41 is pulled away from the outer side surface 131 of the operating handle 13, the curved portion 414 is elastically abutted against the inner side 132 of the operating handle 13. Moreover, the spiral ring 41 has a counter-rebound reaction force, and can prevent the spiral ring 41 from being pulled more than 90 ̊, causing the spiral ring 41 to be deformed and damaged, and ensuring that the anti-loose mechanism can continue to perform its function.

As shown in FIG. 1 and FIG. 2, the preferred embodiment of the pipe joint body 20 of the present invention has a tubular interface portion 203, two pivoting seats 204 respectively located outside the two side walls of the interface portion 203, and a slave The two pivoting seats 204 communicate with the opening 205 of the inner surface of the side wall of the interface portion 203, and the first position 201 and the second position 202 are implemented as the pivot holes 2011, 2021 of the pivoting seat 204. . Thereby, when the anti-loose buckle 10 is to be installed, the engaging convex portion 11 of the fastening handle 1 is inserted into the opening 205 until the engaging convex portion 11 protrudes from the opening 205 into the interface portion 203, and then used. a latching hole 40 is disposed in the first position 201 and the first shaft hole 12; and the two pivoting ends 33 of the C-ring 31 of the linking element 3 are disposed in the second position 202. The pivot hole 2021 can complete the installation and replacement of the lock fastener 10 in a simple and quick manner.

When the anti-loose buckle of the present invention and the pipe joint using the same are used for fastening a mouthpiece 30, as shown in FIG. 6, the user can flip the buckle handle 1 backward (downward), so that the buckle is convex. The portion 11 is fastened to the nozzle 30, and the lower surface of the blocking projection 21 of the blocking member 2 abuts against the spiral ring 41 of the limiting member 4, so that the fastening handle 1 cannot be forward (upward) Flip to achieve the anti-loose function. When the nozzle 30 is to be released, as shown in FIG. 7, the user pulls the spiral ring 41 of the limiting member 4 in two directions, and the spiral ring 41 is disengaged from the blocking convex portion 21, and then as shown in FIG. As shown in Fig. 9, the snap handle 1 can be turned forward (upward) to enable the mouthpiece 30 to be disengaged. When the user loosens the spiral ring 41 of the limiting member 4, its own elastic force causes the spiral ring 41 to abut against the blocking projection 21 of the blocking member 2 (as shown in FIG. 9). When the mouthpiece 30 is to be buckled again, as long as the action of the snap handle 1 is reversed (downward), the loop 41 will slide downward through the slope 211 above the stop projection 21 (as shown in FIG. 10). Finally, when it is disengaged from the inclined surface 211, the spiral ring 41 is again abutted against the underside of the blocking convex portion 21 (as shown in FIG. 6) by the action of the outer side surface 131 of the operating handle 13.

The invention has been described above in terms of the preferred embodiments, and it should be understood by those skilled in the art that the present invention is not intended to limit the scope of the invention. It should be noted that variations and permutations equivalent to those of the embodiments are intended to be included within the scope of the present invention. Therefore, the scope of protection of the present invention is defined by the scope of the patent application.

10‧‧‧Anti-loose buckle

1‧‧‧Buckle handle

11‧‧‧With the convex part

12‧‧‧First shaft hole

13‧‧‧Operation handle

131‧‧‧Outside

132‧‧‧ inside side

14‧‧ ‧ ribs

15‧‧‧Restriction Component Installation Department

151‧‧‧through holes

152‧‧‧First jack

153‧‧‧second jack

2‧‧‧stop element

21‧‧‧stop convex

211‧‧‧Bevel

22‧‧‧pie

23‧‧‧ pivoting piece

24‧‧‧First perforation

3‧‧‧ linkage components

31‧‧‧C-ring

32‧‧‧Act

33‧‧‧ pivot end

4‧‧‧Limiting components

41‧‧‧ spiral ring

411‧‧‧ Ring body

412, 413‧‧‧ ring end

414‧‧‧Bend

20‧‧‧Tubing body

201‧‧‧ first position

202‧‧‧second position

2011, 2021‧‧‧ pivot hole

203‧‧‧ Interface Department

204‧‧‧ pivoting seat

205‧‧‧ openings

30‧‧‧Turning

40‧‧‧ latch

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing the combined state of a pipe joint to which a lock fastener is applied in the present invention. 2 is a perspective view showing the exploded state of the pipe joint to which the anti-loose fastener of the present invention is applied. Figure 3 is a perspective view showing the combined state of the preferred embodiment of the anti-loose buckle of the present invention. Figure 4 is a perspective view showing the first side of the combined state of the preferred embodiment of the anti-loose buckle of the present invention. Fig. 5 is a perspective view showing the second side of the combined state of the preferred embodiment of the anti-loose buckle of the present invention. Fig. 6 is a schematic view showing the fastening and anti-loose action of the pipe joint of the anti-loose buckle of the present invention. Fig. 7 is a schematic view showing the release preventing action of the pipe joint to which the anti-loose fastener is applied in the present invention. FIG. 8 is a schematic view of the anti-loose buckle of FIG. 7 flipped upward after releasing the anti-loose action. FIG. 9 is a schematic view showing the homing operation of the limiting component after the anti-loose buckle of FIG. 8 is turned up. FIG. 10 is a schematic view showing the action of the limit member of the anti-loose buckle of FIG.

10‧‧‧Anti-loose buckle

1‧‧‧Buckle handle

11‧‧‧With the convex part

12‧‧‧First shaft hole

13‧‧‧Operation handle

131‧‧‧Outside

2‧‧‧stop element

21‧‧‧stop convex

211‧‧‧Bevel

22‧‧‧pie

23‧‧‧ pivoting piece

24‧‧‧First perforation

3‧‧‧ linkage components

31‧‧‧C-ring

32‧‧‧Act

33‧‧‧ pivot end

4‧‧‧Limiting components

41‧‧‧ spiral ring

411‧‧‧ Ring body

414‧‧‧Bend

20‧‧‧Tubing body

201‧‧‧ first position

202‧‧‧second position

2011, 2021‧‧‧ pivot hole

203‧‧‧ Interface Department

204‧‧‧ pivoting seat

205‧‧‧ openings

40‧‧‧ latch

Claims (9)

A lock-proof fastener for mounting on one side of a pipe joint body, capable of holding a socket inserted into the pipe joint body, comprising: a snap handle, a stop component, a linkage component and a limit component The first end of the fastening handle has a fastening protrusion for pivoting in a first position of the fitting body, and the second end of the fastening handle has an operating handle; The stopping member is slidably sleeved on the operating handle, and the stopping member has a blocking protrusion on an outer side surface of the operating handle; the upper end of the linking member is pivotally connected to a second position of the fitting body The lower end of the interlocking member is disposed on the blocking member, and the engaging member is turned down to perform the fastening, and the interlocking member pulls the blocking member to move upward along the operating handle; the limiting member is disposed in the a handle of the handle, the retaining member has an elastic force to continuously abut against the outer side of the operating handle, and the engaging handle abuts against the lower surface of the blocking protrusion of the blocking member in the engaged state The limiting member is such that the fastening handle cannot be turned over; Stop element can be pulled away from the outer side surface of the operation handle, so that the engagement of the handle can be turned. The anti-loose device of claim 1, wherein the first position and the second position of the pipe joint body are on a same horizontal line on a side of the pipe joint body, and the first position and the second position are separated from each other a spacing. The anti-loose device according to claim 1, wherein the blocking member has a sheet body adjacent to an outer side surface of the operating handle, and two pivoting pieces integrally connecting the two ends of the sheet body; The lower end is formed with the blocking protrusion, and the two pivoting pieces are respectively provided with a first through hole; and the lower end of the linking element passes through the first through hole of the two pivoting pieces. The anti-loose device according to claim 3, wherein the upper surface of the blocking protrusion is a slope, and the slope is connected to the outside of the sheet. The anti-loose device of claim 3, wherein the linkage element is a C-shaped ring, the lower end ring body of the C-shaped ring passes through the first perforation, and the two pivot ends of the C-shaped ring are pivotally connected to the tube The second position of the joint body. The anti-loose device of claim 1, wherein the handle of the fastening handle is provided with a through hole extending through two sides thereof, and one of the two sides is provided with a first insertion hole adjacent to the through hole. The other side of the two sides is provided with a second insertion hole adjacent to the through hole; and the limiting element is a spiral ring that rotates two times, and the ring body of the spiral ring passes through the through hole, the spiral ring The two ring ends are respectively inserted into the first jack and the second jack. The anti-loose device according to claim 6, wherein the spiral ring is provided with a bent portion, and the spiral ring is pulled away from the outer side surface of the operating handle, and simultaneously the elastic portion is elastically abutted in one of the operating handles. side. The anti-loose device of claim 6, wherein the spiral ring is an elliptical spiral ring or a circular spiral ring or a rectangular spiral ring. A pipe joint of the anti-loose device according to any one of claims 1 to 8, comprising a pipe joint body having a tubular interface portion and two pivoting portions outside a side wall of the interface portion a seat, and an opening communicating from the two pivoting seats to an inner surface of the side wall of the interface portion, the first position and the second position being a pivot hole disposed in the pivoting seat; and the fastening handle The snap projection extends from the opening into the interface portion.