TWI666063B - Buffer Structure And Liquid Pressing Device Including The Same - Google Patents

Abstract

The invention relates to a buffer structure provided on an extruding rod of a fluid extruding device. The fluid extruding device includes a release piece movably clamped on the extruding rod. The cushioning structure includes a base, It is provided with a perforation for the extruding rod to pass through; at least one convex part, each of the convex parts is connected to the base part; a buckle part is connected to the base part, and the buckle part and the base part together constitute a The accommodating holes each protrude toward the accommodating holes, and the accommodating holes are used for accommodating the release sheet. The present invention also relates to a fluid extrusion device, including the buffer structure, further comprising a base body, an extrusion rod, and a release sheet, the release sheet is provided in the accommodation hole of the buffer structure, and at least one top convex portion of the buffer structure The release sheet can be pressed against the release portion of the base body in a first direction.

Description

Buffer structure and fluid extrusion device including the same

The invention relates to a buffer structure and a fluid extrusion device including the buffer structure.

The conventional fluid squeeze device includes a body, a push rod, a trigger, and a limiting piece. The body can be used for installing a fluid bottle therein. The body is provided with a front end and a rear end. The trigger is arranged on the body, the trigger can drive the push rod to move to the front end, so as to push the fluid bottle to make the fluid installed therein flow out, and the stopper is arranged on the push rod to hold the push rod to Restrict movement to the back end.

The limiting piece can be tilted or vertically arranged relative to the push rod to achieve a latched and non-latched state. When in use, the trigger can drive the push rod and the limit piece inclined to the push rod to move to the front end. However, when the fluid bottle is squeezed out of the glue and the trigger is released, the pressure generated by the fluid bottle is often too large, and because the push rod does not have a buffer structure, the pressure generated by the fluid bottle cannot be relieved in time, that is, the squeeze of the fluid bottle is stopped Sometimes the pressure on the inside of the plastic tank is continuously formed because the push rod cannot be loosened, resulting in continuous overflow of the fluid bottle and waste.

Therefore, it is necessary to provide a novel and progressive cushioning structure and a fluid extrusion device including the cushioning structure to solve the above problems.

The main object of the present invention is to provide a buffer structure and a fluid including the buffer structure, which can prevent fluid from overflowing during operation and provide smooth operation.

In order to achieve the above object, the present invention provides a buffer structure provided on an extruding rod of a fluid extruding device. The fluid extruding device includes a release sheet movably engaged with the extruding rod. It includes: a base part provided with a perforation, which is sleeved on the squeeze rod; at least one top convex part, each top convex part is connected to the base part; a buckle part connected to the base part, the buckle The base part and the base part jointly constitute an accommodation hole, and each of the top convex parts protrudes into the accommodation hole, and the accommodation hole is used for accommodating the release sheet; further comprising a limiting structure connecting the base part, the limiting structure and each The top convex portions are respectively disposed on two opposite sides of the base portion, the limiting structure surrounds a tapered hole, the tapered hole communicates with the perforation and is coaxially arranged, and the tapered hole is opposite to each of the holes from the perforation. The direction of the top projection is tapered.

To achieve the above object, the present invention further provides a fluid extrusion device, which includes a buffer structure as described above. The fluid extrusion device further includes: a body provided with a receiving groove, a through hole communicating with the receiving groove, and A limiting portion, the containing groove, the through hole and the limiting portion are arranged in a first direction, and the containing groove and the limiting portion respectively extend to two opposite sides of the seat body; a squeeze rod, which The through hole is traversed and is movably located in the accommodation slot, the squeeze rod passes through the perforation of the buffer structure; a release piece is movably snapped on the squeeze rod and movably provided in the accommodation hole, The release sheet is disposed in the receiving hole of the buffer structure, at least one top convex portion of the buffer structure can abut the release sheet, and the release sheet can abut the limit portion in the first direction.

1‧‧‧ buffer structure

10‧‧‧ base

11‧‧‧ perforation

12‧‧‧ Sheet

13‧‧‧ groove

20‧‧‧ crown

21‧‧‧ Arc convex end face

30‧‧‧Deduction

31‧‧‧ Hook

40‧‧‧ Rongcon

50‧‧‧ limit structure

51‧‧‧Tapering hole

52‧‧‧elastic sheet body

2‧‧‧ fluid extrusion device

3‧‧‧ squeeze rod

4‧‧‧ release tablets

5‧‧‧ seat

61‧‧‧container

62‧‧‧through hole

63‧‧‧Limiting Department

64‧‧‧ limit protrusion

65‧‧‧ clearance

FIG. 1 is a perspective view of a preferred embodiment of the present invention.

FIG. 2 is a side view of a preferred embodiment of the present invention.

FIG. 3 is a perspective view of a buffer structure according to a preferred embodiment of the present invention.

FIG. 4 is another perspective view of a buffer structure according to a preferred embodiment of the present invention.

FIG. 5 is a schematic diagram of the use of a preferred embodiment of the present invention.

FIG. 6 is a schematic diagram of backward displacement of a squeeze rod when released according to a preferred embodiment of the present invention.

FIG. 7 is a partially enlarged sectional view of FIG. 6.

FIG. 8 is a partial cross-sectional view of a preferred embodiment of the present invention.

FIG. 9 is a partial cross-sectional view of a buffer structure combined with an extruded rod according to a preferred embodiment of the present invention.

FIG. 10 is a partial cross-sectional view of a buffer structure according to a preferred embodiment of the present invention.

The following only illustrates the possible implementation aspects of the present invention by way of examples, but is not intended to limit the scope of the present invention to be protected, which will be described first.

Please refer to FIGS. 1 to 10, which show a preferred embodiment of the present invention. The buffer structure 1 of the present invention is provided on an extrusion rod 3 of a fluid extrusion device 2. The fluid extrusion device 2 includes a The release piece 4 is clamped on the pressing rod 3 in a moving manner. The buffer structure 1 includes at least a base portion 10, at least a top convex portion 20 and a buckle portion 30.

The base 10 is provided with a perforation 11 for the extruding rod 3 to pass through; the at least one top projection 20, each of the top projections 20 is connected to the base 10; the buckle 30 is connected to the base 10, The buckle portion 30 and the base portion 10 together constitute an accommodation hole 40, and each of the top convex portions 20 protrudes into the accommodation hole 40. The accommodation hole 40 is used to receive the release sheet 4, thereby preventing the release piece 4 from being actuated during operation. The fluid overflows and provides smooth movement. In detail, each of the protruding portions 20 can be abutted against the release sheet 4 so that there is a gap between each of the release sheets 4 and the base portion 10 without Will be fully attached to the base 10, so that the release piece 4 can be smoothly moved relative to the base 10 and the squeeze rod 3, so that the squeeze rod 3 can be squeezed by the fluid when it is squeezed One of the fluid bottles of device 2 reaches a buffer pushback to prevent fluid overflow. Preferably, the number of the at least one top convex portion 20 is plural, and the plurality of top convex portions 20 are disposed around the perforation 11 to stably abut the pressing rod 3 for preventing the pressing rod 3 from swinging. In addition, each of the top convex portions 20 is provided with an arc convex end surface 21 to reduce the contact area between each of the top convex portions 20 and the release sheet 4 and facilitate separation between the two.

The base portion 10 can be elastically deformed. The base portion 10 is provided with a thin plate portion 12. The thickness of the thin plate portion 12 is smaller than the thickness of other portions of the base portion 10. The perforation 11 runs through the thin plate portion 12 so that the thin plate portion 12 easily deforms elastically. To allow the tolerance between the squeeze rod 3 and the perforation 11 while maintaining the structural strength of the buffer structure 1. In this embodiment, each of the top convex portions 20 is disposed on the thin plate portion 12, which facilitates changing the position relative to the accommodation hole 40 through the elastic deformation of the thin plate portion 12.

In this embodiment, the buffer structure 1 further includes a limiting structure 50 connected to the base portion 10. The limiting structure 50 and each of the top convex portions 20 are respectively disposed on two opposite sides of the base portion 10. The limiting structure 50 forms a tapered hole 51, which is in communication with and coaxially provided with the perforation 11; the tapered hole 51 is tapered from the perforation 11 in a direction opposite to each of the convex portions 20; the limiting structure 50 is provided in the thin plate portion 12; in this embodiment, the perforation 11 is a multi-angle hole, which can be used to stably set the extruded rod 3 of various sizes and shapes; in other embodiments, it can also be an oval hole or a square Holes, etc. Preferably, the buffer structure defines an axis passing through the center of the perforation 11, the limiting structure 50 includes a plurality of elastic sheet bodies 52, and the plurality of elastic sheet bodies 52 are looped around the axis at the base 10 and the plurality of elastic sheet bodies. 52 encloses the tapered hole 51 to stably support the pressing rod 3. In addition, the thin plate portion 12 is provided with a groove 13, the limiting structure 50 is connected to the bottom of the groove 13, and the perforation 11 is continuously formed in the groove 13 to increase the amount of elastic deformation of each of the limiting structures 50. , And not easy to break.

In this embodiment, the buckle portion 30 is provided with two spaced-apart hooks 31, and the receiving hole 40 is tapered from the base 10 toward the end of each of the hooks 31, so as to limit the release sheet 4 relative to the receiving hole 40. The amount of movement.

The present invention further provides a fluid extrusion device 2 including a buffer structure 1 as described above. The fluid extrusion device 2 further includes a base 5, the extrusion rod 3, and the release sheet 4.

The base body 5 is provided with a receiving groove 61, a through hole 62 and a limiting portion 63 communicating with the receiving groove 61, and the receiving groove 61, the through hole 62 and the limiting portion 63 are disposed in a first direction, The receiving groove 61 and the limiting portion 63 respectively extend to opposite sides of the base body 5; the pressing rod 3 passes through the through hole 62 and is movably located in the receiving groove 61, and the pressing rod 3 passes through The perforation 11 of the buffer structure is provided; the release piece 4 is movably snapped on the squeeze rod 3 and is movably provided in the accommodation hole 40, and the release piece 4 is provided in the accommodation hole 40 of the cushion structure 1, the cushion structure The at least one convex portion 20 of 1 can abut against the release sheet 4, and the release sheet 4 can abut against the limiting portion 63 in the first direction, thereby preventing fluid from overflowing and providing smoothness during operation. Act. Preferably, the limiting portion 63 includes two limiting protrusions 64 spaced apart from each other in the first direction, a gap 65 is provided between the two limiting protrusions 64, and the release piece 4 is provided in the gap 65 and It can abut against the two limiting protrusions 64 in the first direction, and each of the protruding protrusions 20 corresponds to the gap 65 and does not exceed the position corresponding to the gap 65; the release sheet 4 is located in one of the limiting protrusions. Between 64 and each of the top convex portions 20, the release piece 4 is facilitated to sway and reset.

In use, the buffer structure 1 can drive the release sheet 4 by the buckle portion 30, and each of the protruding portions 20 abuts against the release sheet 4, so that the release sheet 4 does not stick to the base portion 10; In the released state, that is, when the squeeze rod 3 is retracted backward, the release piece 4 and the squeeze rod 3 are changed slightly vertically and obliquely to form a short backward movement of the squeeze rod 3 In order to achieve the release of the pressure generated by pushing the fluid bottle, and prevent overflow conditions.

Claims (9)

A buffer structure is provided on an extruding rod of a fluid extruding device. The fluid extruding device includes a release piece movably clamped on the extruding rod. The cushioning structure includes a base and a perforation. The perforation is used for the extruding rod to pass through; at least one convex portion, each of the convex portions is connected to the base portion; a buckle portion is connected to the base portion, and the buckle portion and the base portion jointly constitute an accommodation hole, each of which The top convex portion protrudes toward the accommodation hole, and the accommodation hole is used for accommodating the release sheet; and further includes a limiting structure connected to the base portion, and the position limiting structure and each of the top convex portions are respectively disposed on opposite sides of the base portion. On the side, the limiting structure surrounds a tapered hole, which is in communication with the perforation and is coaxially arranged. The tapered hole is tapered from the perforation in a direction opposite to each of the top convex portions. The buffer structure according to claim 1, wherein the base portion is elastically deformable, the base portion is provided with a thin plate portion, the thickness of the thin plate portion is smaller than the thickness of other portions of the base portion, and the perforation runs through the thin plate portion. The buffer structure according to claim 2, further comprising a limiting structure connected to the base, the limiting structure and each of the top convex portions are respectively disposed on opposite sides of the base, and the limiting structure forms a tapered hole The tapered hole and the perforation communicate with each other and are coaxially arranged. The tapered hole is tapered from the perforation in a direction opposite to each of the top convex portions, and the limiting structure is provided on the thin plate portion. The buffer structure according to claim 3, wherein the buffer structure defines an axis passing through the center of the perforation, the limiting structure includes a plurality of elastic pieces, the plurality of elastic pieces are looped around the axis at the base, and the plurality of elastic pieces The sheet body encloses the tapered holes. The buffer structure according to claim 3, wherein the thin plate portion is provided with a groove, the limiting structure is connected to the groove bottom of the groove, and the perforation is continuously formed in the groove. The buffer structure according to claim 1, wherein the number of the at least one top convex portion is plural, and the plurality of top convex portions are disposed around the perforation. The buffer structure according to claim 4, wherein the thin plate portion is provided with a groove, the limiting structure is connected to the groove bottom of the groove, and the perforation is provided through the groove; the number of the at least one top convex portion is Plural, the plural convex portions are provided around the perforation; the buckle portion is provided with two spaced-apart hooks, the accommodation hole is tapered from the base toward the end of each of the hooks; each of the convex portions is provided on the thin plate portion; The perforation is a polygonal hole; each of the top convex portions is provided with an arc convex end surface. A fluid extrusion device includes the buffer structure according to any one of claims 1 to 7, and the fluid extrusion device further includes: a body provided with a receiving groove, a through hole communicating with the receiving groove, and a stop. The receiving groove, the through hole and the limiting portion are arranged in a first direction, and the receiving groove and the limiting portion respectively extend to two opposite sides of the seat body; an extruded rod passes through the through hole The hole is movably located in the receiving slot, the pressing rod passes through the perforation of the buffer structure; a release piece is movably snapped on the pressing rod and is movably provided in the accommodating hole, and the releasing piece is provided in The accommodating hole of the buffer structure, at least one protruding portion of the buffer structure can abut against the release piece, and the release piece can abut against the limit portion in the first direction. The fluid squeezing device according to claim 8, wherein the limiting portion includes two limiting protrusions disposed at intervals in the first direction, a gap is provided between the two limiting protrusions, and the release sheet is provided at The gap can abut against the two limiting protrusions in the first direction, and each of the protruding protrusions corresponds to the gap and does not exceed the position corresponding to the gap; the release sheet is located in one of the limiting protrusions and each Between the convex portions.