CN217041155U - Barb mechanism for fire extinguisher - Google Patents

Abstract

The utility model discloses a barb mechanism for fire extinguisher, relating to the technical field of fire extinguisher, a buckle comprises a buckle body, a first through hole is arranged on a safety pin, a holding plate is arranged at one end of the buckle body, the width of the holding plate is larger than that of the first through hole, a plurality of groups of barbs are arranged at the other end of the buckle body along the length direction, each group of barbs are uniformly distributed along the circumferential direction, each group of barbs enclose a conical region and are obliquely arranged towards the direction close to the holding plate, the cross section of the buckle body is in a flat square shape, a guide surface is arranged at the end of the buckle body opposite to the holding plate, so that the end of the buckle provided with barbs passes through the first through hole, the barbs shrink towards the buckle body under the action of the first through hole, after the barbs pass through the first through hole, the barbs rebound and reset are carried out, the holding plate and the barbs are respectively limited at the two ends of the safety pin, the buckle body arranged in the flat square shape can prevent the buckle from rotating in the first through hole, the buckle is easy to mount and dismount on the safety pin.

Description

Barb mechanism for fire extinguisher

Technical Field

The utility model relates to a fire extinguisher technical field, in particular to barb mechanism for fire extinguisher.

Background

The fire extinguisher is a portable fire extinguishing tool, chemical articles are stored in the fire extinguisher for extinguishing fire, and the fire extinguisher is one of common fire-proof facilities and is stored in public places or places where fire disasters may happen.

In order to avoid misoperation of the fire extinguisher, a safety pin is often inserted into the fire extinguisher, and the fire extinguisher cannot be used until the safety pin is not pulled out.

Disclosure of Invention

To the above defect, the utility model aims at providing a barb mechanism for fire extinguisher aims at solving the technical problem that the buckle is difficult and easily drops in the installation when using among the prior art.

In order to solve the technical problem, the technical scheme of the utility model is that:

the utility model provides a barb mechanism for fire extinguisher, including pressing the handle, it is equipped with the safety catch to press the last slip, the both ends of safety catch run through the both sides of pressing the handle respectively, the one end rigid coupling of safety catch has the pull ring, the other end of safety catch is pegged graft and is had the buckle, the buckle includes the buckle body, be equipped with first through-hole on the safety catch, the buckle body can slide in first through-hole, the one end of buckle body is equipped with holds the board, the width of holding the board is greater than the width of first through-hole, the other end of buckle body is equipped with a plurality of groups of barbs along its length direction, every group barb is along circumference equipartition, every group barb encloses into the conical zone and the orientation is close to the direction slope setting of holding the board, the cross-section of buckle body is the oblate setting, the one end that the buckle body dorsad held the board is equipped with the spigot surface.

Preferably, each set of barbs is provided in four.

Preferably, the pressing handle is fixedly connected with an installation block, a second through hole is formed in the installation block, the center of the second through hole and the center of the first through hole are located on the same horizontal plane, one end, close to the holding plate, of the buckle body is connected to the second through hole in an inserting mode, and the first through hole and the second through hole are located in the area between the holding plate and the barb.

Preferably, the distance between the first through hole and the second through hole is greater than the distance between the guide surface and the barb adjacent to the first through hole.

Preferably, one end of the holding plate close to the buckle body is provided with a chamfer angle.

Preferably, the side part of the safety pin is provided with an opening communicated with the first through hole, and the width of the opening is larger than the thickness of the buckle body and smaller than the width of the buckle body.

Preferably, the first through hole is rectangular.

Preferably, the opening is arranged on one side of the first through hole, which is far away from the pull ring.

Preferably, the width of the clamping rod body is gradually reduced along the direction departing from the holding plate.

After the technical scheme is adopted, the beneficial effects of the utility model are that:

because the barb mechanism for the fire extinguisher comprises the pressing handle, the pressing handle is provided with the safety pin in a sliding way, two ends of the safety pin respectively penetrate through two sides of the pressing handle, one end of the safety pin is fixedly connected with the pull ring, the other end of the safety pin is inserted with the buckle, the buckle comprises a buckle body, the safety pin is provided with a first through hole, the buckle body can slide in the first through hole, one end of the buckle body is provided with the holding plate, the width of the holding plate is larger than that of the first through hole, the other end of the buckle body is provided with a plurality of groups of barbs along the length direction, each group of barbs are evenly distributed along the circumferential direction, each group of barbs surround a conical area and are obliquely arranged towards the direction close to the holding plate, the cross section of the buckle body is arranged in a flat square shape, one end of the buckle body, which is back to the holding plate, is provided with a guide surface so that one end of the buckle provided with the barbs penetrates through the first through hole, at the moment, the barbs shrink towards the buckle body under the action of the first through hole, after the first through-hole is pierced through, the barb kick-backs and resets, hold board and barb this moment and be spacing respectively at the both ends of safety catch, and the buckle body that the oblate set up can prevent the buckle at first through-hole internal rotation for the simple installation of buckle on the safety catch, and easily dismantle, when using the fire extinguisher, portable holding board is pulled out the kelly body from first through-hole, and the barb atress inclines towards opposite direction, later extracts the safety catch.

Because every group barb sets up to four for can further improve the locking effect of buckle, prevent that the buckle from droing in the safety catch, and then improve the life of fire extinguisher.

Because the last rigid coupling of pressure is equipped with the installation piece, is equipped with the second through-hole on the installation piece, and the second through-hole lies in same horizontal plane with the center of first through-hole, and the buckle body is close to the one end of holding the board and pegs graft in the second through-hole, and first through-hole and second through-hole are located the region between holding board and barb for can prevent through the installation piece that the buckle from rotating along with the safety pin, prevent that the buckle from being cut off in the fire extinguisher transportation.

Because first through-hole with distance between the second through-hole is greater than the spigot surface and is close to the distance between the barb of first through-hole for when extracting the buckle from first through-hole in, the buckle is prevented by the locking at the both ends of second through-hole that the buckle is abandoned everywhere, leads to polluted environment's the condition to take place, and the buckle can be along with pressing recycle, practices thrift the cost.

Because the holding plate is provided with the chamfer angle at the end close to the buckle body, the buckle can be more conveniently installed.

Because the lateral part of safety pin is equipped with the opening of the first through-hole of intercommunication, the open-ended width is greater than the thickness of buckle body and is less than the width of buckle body for personnel are when pulling out the safety pin by force, and the buckle is followed the opening part roll-off, prevents that the buckle from being torn apart by the brute force.

Because the width of the clamping rod body along the direction deviating from the holding plate is gradually reduced, the mounting difficulty of the clamping buckle is further reduced, and the mounting efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of a barb mechanism for a fire extinguisher according to the present invention;

fig. 2 is a schematic structural view of a second embodiment of the barb mechanism for fire extinguisher according to the present invention;

fig. 3 is a schematic structural diagram of a third embodiment of the barb mechanism for fire extinguisher according to the present invention.

In the figure, a pressing handle 1, a mounting block 10, a second through hole 11, a safety pin 2, a first through hole 20, an opening 200, a buckle 3, a buckle body 30, a holding plate 31 and a barb 32.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The directions related in the specification all use the directions of the barb mechanism for the fire extinguisher during normal work as the standard, the directions of the barb mechanism during storage and transportation are not limited, and only the relative position relation is represented, but the absolute position relation is not represented.

The first embodiment is as follows:

as shown in figure 1, the barb mechanism for the fire extinguisher comprises a pressing handle 1, wherein a safety pin 2 is slidably arranged on the pressing handle 1, two ends of the safety pin 2 respectively penetrate through two sides of the pressing handle 1, one end of the safety pin 2 is fixedly connected with a pull ring, a buckle 3 is inserted into the other end of the safety pin 2, the buckle 3 comprises a buckle body 30, a first through hole 20 is formed in the safety pin 2, the buckle body 30 can slide in the first through hole 20, a holding plate 31 is arranged at one end of the buckle body 30, the width of the holding plate 31 is larger than that of the first through hole 20, an inverted bevel angle is preferably arranged at one end, close to the buckle body 30, of the holding plate 31, the width of the preferred clamping rod body is gradually reduced along the direction departing from the holding plate 31, the installation difficulty of the buckle 3 is further reduced, the installation of the buckle 3 is simpler and more convenient, the installation efficiency is improved, a plurality of groups of barbs 32 are arranged at the other end of the buckle body 30 along the length direction, each group of barbs 32 are uniformly distributed along the circumferential direction, each group of barbs 32 is surrounded into a conical area and is obliquely arranged towards the direction close to the holding plate 31, the cross section of the buckle body 30 is in a flat square shape, and a guide surface is arranged at one end, back to the holding plate 31, of the buckle body 30 to guide the insertion of the buckle body 30 and the first through hole 20.

During the installation, first through-hole 20 is passed to the one end that is equipped with buckle 3 barb 32, barb 32 contracts towards buckle body 30 under the effect of first through-hole 20 this moment, barb 32 passes behind first through-hole 20, barb 32 kick-backs and resets, hold board 31 and barb 32 spacing both ends at safety pin 2 respectively this moment, buckle body 30 that the rhombus set up can prevent buckle 3 at first through-hole 20 internal rotation, make buckle 3 simple installation on safety pin 2, and easily dismantle, when using the fire extinguisher, the hand is carried and is held board 31 and pulls out the kelly body from first through-hole 20, barb 32 atress inclines towards opposite direction, later extract safety pin 2.

Wherein, every barb 32 of group sets up to four, and during the use, four barbs 32 carry on spacingly to safety catch 2 jointly for can further improve buckle 3's locking effect, prevent that buckle 3 from droing in the safety catch 2, and then improve the life of fire extinguisher.

Example two:

as shown in fig. 2, the present embodiment is different from the first embodiment in that: press welded connection to have installation piece 10 on 1, be equipped with second through-hole 11 on the installation piece 10, it is circular that preferred second through-hole 11 sets up to, second through-hole 11 is located same horizontal plane with the center of first through-hole 20, buckle body 30 is close to the one end of holding board 31 and pegs graft in second through-hole 11, first through-hole 20 and second through-hole 11 are located the region between holding board 31 and barb 32, during the use, can be through the fixed buckle 3 of installation piece 10, can prevent that buckle 3 from rotating along with safety pin 2, prevent that buckle 3 from being cut off in the fire extinguisher transportation.

Example three:

as shown in fig. 3, the present embodiment is different from the second embodiment in that: as the utility model discloses a further improvement, it is preferred, the distance between first through-hole 20 and the second through-hole 11 is greater than the spigot surface and is close to the distance between the barb 32 of first through-hole 20, during the use, when hand grip plate 31 extracts buckle 3 from first through-hole 20, buckle 3 is by the locking at the both ends of second through-hole 11, prevents that buckle 3 from being abandoned everywhere, leads to the circumstances of polluted environment to take place to buckle 3 can be along with pressing 1 recycle, practices thrift the cost.

As a further improvement of the utility model, the side of the safety pin 2 is provided with an opening 200 communicated with the first through hole 20, the opening 200 is arranged at the top of the safety pin 2, preferably, the first through hole 20 is arranged in a rectangle, the opening 200 is arranged at one side of the first through hole 20 far away from the pull ring, the width of the opening 200 is larger than the thickness of the buckle body 30 and smaller than the width of the buckle body 30, when the buckle 3 is installed, the buckle 3 can be inserted into the opening 200 from the top, after the buckle body 30 vertically enters the first through hole 20 through the opening 200, the buckle body 30 is turned to a horizontal arrangement, the buckle body 30 is inserted into the first through hole 20, the areas at the two sides of the opening 200 limit the upward movement of the buckle body 30, and when the fire extinguisher is used, many people can forcibly pull out the safety pin 2 from the pressing handle 1, in the embodiment, when the people pull out the safety pin 2 forcibly, the buckle 3 slides out from the opening 200, preventing the clip 3 from being broken by force.

The present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes without creative labor from the above conception, and all the changes fall within the protection scope of the present invention.

Claims (9)

1. A barb mechanism for a fire extinguisher comprises a pressing handle, a safety pin is arranged on the pressing handle in a sliding way, two ends of the safety pin respectively penetrate through two sides of the pressing handle, one end of the safety pin is fixedly connected with a pull ring, the other end of the safety pin is inserted with a buckle, it is characterized in that the buckle comprises a buckle body, a first through hole is arranged on the safety pin, the buckle body can slide in the first through hole, one end of the buckle body is provided with a holding plate, the width of the holding plate is larger than that of the first through hole, the other end of the buckle body is provided with a plurality of groups of barbs along the length direction, each group of barbs are uniformly distributed along the circumferential direction, each group of barbs surround a conical area and are obliquely arranged towards the direction close to the holding plate, the cross-section of buckle body is the oblate setting, the buckle body one end dorsad the grip is equipped with the spigot surface.

2. The barb mechanism of claim 1, wherein each set of four barbs is provided.

3. The barb mechanism of claim 1, wherein a mounting block is fixedly connected to the handle, a second through hole is formed in the mounting block, the second through hole and the center of the first through hole are located on the same horizontal plane, one end of the buckle body close to the holding plate is inserted into the second through hole, and the first through hole and the second through hole are located in a region between the holding plate and the barb.

4. The barb mechanism of claim 3, wherein the distance between the first through-hole and the second through-hole is greater than the distance between the guide surface and the barb proximate the first through-hole.

5. The barb mechanism of claim 1, wherein an end of the grip plate adjacent to the buckle body is beveled.

6. The barb mechanism of claim 4, wherein the side of the safety pin is provided with an opening communicating with the first through hole, and the width of the opening is larger than the thickness of the buckle body and smaller than the width of the buckle body.

7. The barb mechanism of claim 6, wherein the first through-hole is rectangular.

8. The barb mechanism of claim 7, wherein the opening is disposed on a side of the first bore distal from the tab.

9. The barb mechanism of claim 1, wherein the buckle body has a width that decreases in a direction away from the grip plate.

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