TWI627034B - Ceiling gun - Google Patents

Abstract

The invention relates to a ceiling gun, which comprises a body, a movable sleeve, a launch tube, and a guide assembly. The movable sleeve is slidably disposed on the body. The launch tube group is connected to one end of the movable sleeve away from the body. The inner wall of the launch tube is provided with a first large diameter section and a first small diameter section. The first large diameter section and the first small diameter section A first step portion is formed therebetween, and a gunpowder nail is accommodated in the launching tube, and the end of the gunpowder facing the one body is abutted against the first step portion.

Description

Ceiling gun

The invention relates to a ceiling gun.

According to the general ceiling gun is used to hit the gunpowder nails equipped with gunpowder on hard targets (such as the roof of the room), so that gunpowder nails can be combined with light steel frames for the decoration industry to install ceilings , Electric fan or air-conditioning air outlet, etc., it is known that gunpowder nails have a nail body and a large-diameter medicine chamber, and the ceiling gun has a retractable gun body, a guide tube, and a needle assembly. A needle assembly is slid inside the guide tube. The needle assembly includes a moving needle member and a needle rod for guiding the moving direction of the needle assembly. It is known that the guide tube has a small diameter section that is integrally formed. And a large diameter section, the small diameter section has fine holes for only the needle to pass through, and the large diameter section has a container for the slide rod to limit the sliding position. When the muzzle of the gun body is forced against the At the time of the target, the gun body will expand and contract and the small diameter section abuts against the end face of the medicine chamber. When the needle of the trigger needle assembly moves toward the gunpowder, the needle extends out of the small diameter section and strikes After the gunpowder nail, the gunpowder in the gunpowder is ignited and exploded to shoot the gunpowder into the target.

However, when the guide tube of the ceiling gun is pressed against the end face of the drug chamber, the excess space in the drug chamber is very large, which is likely to slow down the speed of the explosive explosion and reduce the instantaneous power, and it will have some power when the explosive explodes. It is released towards the direction of the guide tube, which will cause the thrust of the gunpowder projectile to drop, and it may easily cause the small diameter section of the guide tube to bend or deform due to excessive pressure, or the diameter of the pores will change, which will make the needle piece not smooth There are shortcomings that need to be improved in the case of gunpowder that extends out of the small diameter section or that can not be hit by the gunpowder when it is extended.

Therefore, it is necessary to provide a novel and progressive ceiling gun to solve the above problems.

The main object of the present invention is to provide a ceiling gun, which can conveniently contain the gunpowder nails, and the guiding component of the gun is extended into the gunpowder's medicine chamber, which can reduce the extra space in the gun chamber to prevent explosives from burning and burning The speed is slower, and it is possible to avoid that when the powder is exploded, a part of the force is released in the direction of the guide tube, which causes the thrust of the powder gun to drop, so the use efficiency can be improved.

In order to achieve the above object, the present invention provides a ceiling gun, which includes a body, a movable sleeve, a launch tube, a guide assembly, and a striker assembly. The movable sleeve is slidably disposed on the body. The launch tube group is connected to one end of the movable sleeve away from the body. The inner wall of the launch tube is provided with a first large diameter section and a first small diameter section. The first large diameter section and the first small diameter section A first step portion is formed therebetween, and a gunpowder nail is accommodated in the launching tube, and the end of the gunpowder facing the one body is abutted against the first step portion. The guide assembly is slidably disposed in the movable sleeve and includes a guide tube and a guide sleeve connected to each other. The guide tube is provided with a second large diameter section and a second end far from the guide sleeve. Small diameter section, a second step is formed between the second large diameter section and the second small diameter section. When the guide tube extends into the launching tube, the gunpowder nails against the one end of the body. On the second stage. The striker assembly is slidably disposed in the movable sleeve, and includes a striker spring, a striker and a striker connected to the striker. The striker is slidably disposed in the guide sleeve. It is slidably arranged between the guide tube and the guide sleeve, and the needle spring springs against the body and the needle rod, so that the needle rod and the needle member have a movement toward the launch tube. The trend.

1‧‧‧ Ontology

44‧‧‧ Head

2‧‧‧ Activity Set

45‧‧‧External thread section

3‧‧‧ launch tube

46‧‧‧Internal thread section

4‧‧‧Guide components

47‧‧‧first flange

5‧‧‧ Needle assembly

411‧‧‧The second largest trail section

9‧‧‧ powder gun

412‧‧‧second footpath

11‧‧‧first chute

413‧‧‧Second Stage

12‧‧‧ Pins

421‧‧‧Second Chute

13‧‧‧Connect the

422‧‧‧ limit slot

14‧‧‧ protective cover

423‧‧‧Expansion Department

15‧‧‧Needle Spring

51‧‧‧Needle

16‧‧‧ firing block

52‧‧‧Needle

17‧‧‧Return spring

53‧‧‧Bombs

21‧‧‧Second flange

81‧‧‧ flat surface

31‧‧‧The first large diameter section

82‧‧‧ plane section

32‧‧‧ the first footpath

91‧‧‧ nail body

33‧‧‧First Stage

92‧‧‧ arrived at the top

41‧‧‧ Guide tube

93‧‧‧Pharmacy

42‧‧‧Guide Sleeve

94‧‧‧Thread

43‧‧‧body

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

FIG. 2 is an exploded view of the first preferred embodiment of the present invention.

3 to 6 are operation schematic diagrams of the first preferred embodiment of the present invention.

FIG. 7 is a partially enlarged view of FIG. 4.

8 and 9 are cross-sectional views of the operation of the present invention at another viewing angle.

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 7, which show a preferred embodiment of the present invention. The ceiling gun of the present invention includes a body 1, a movable sleeve 2, a launch tube 3, a guide assembly 4, and a striker assembly 5.

The movable sleeve 2 is slidably disposed on the main body 1.

The launch tube 3 is connected to one end of the movable sleeve 2 away from the body 1. The inner wall of the launch tube 3 is provided with a first large diameter section 31 and a first small diameter section 32. The first large diameter section 31 and A first step portion 33 is formed between the first small-diameter sections 32, and a gunpowder nail 9 is accommodated in the launch tube 3, and the gunpike 9 faces one end of the body 1 and abuts against the first step portion 33. .

The guide assembly 4 is slidably disposed in the movable sleeve 2 and includes a guide tube 41 and a guide sleeve 42 connected to each other. A diameter section 411 and a second small diameter section 412. A second step 413 is formed between the second large diameter section 411 and the second small diameter section 412. When the guide tube 41 projects into the launch tube 3 At this time, one end of the powder nail 9 facing the body 1 abuts against the second step portion 413.

The striker assembly 5 is slidably disposed in the movable sleeve 2 and includes a striker spring 15 and a striker 51 and a striker 52 connected thereto. The striker 52 is slidably disposed on the guide sleeve. Within 42, the needle striking member 51 is slidably disposed between the guide tube 41 and the guiding sleeve 42, and the needle striking spring 15 springs against the main body 1 and the needle striking rod 52 to make the needle strike The rod 52 and the needle-punching member 51 have a tendency to move into the launching tube 3.

Further, in this embodiment, the gunpowder nail 9 includes a nail body 91 connected to a large-diameter abutment top 92, and the abutment top 92 has a medicine chamber 93 containing a gunpowder, and the medicine chamber 93 The peripheral wall is provided with a threaded portion 94. When the gunpowder nail 9 projects into a target (such as a room ceiling), the threaded portion 94 can be used for screwing with a connecting rod of a light steel frame. One end of the nail body 91 abuts against the first step portion 33, and the total thickness of the first step portion 33 and the second step portion 413 is equal to the wall thickness of the abutting portion 92. When the gunpowder ignites and explodes, since the second small-diameter section 412 of the guide pipe 41 extends into the medicine chamber 93, the excess space in the medicine chamber 93 can be reduced to prevent the speed of the gunpowder from exploding and burning. Slow and reduce the instantaneous power, and it can avoid that some of the force is released in the direction of the guide tube 41 when the gunpowder explodes, causing the thrust of the gunpowder nail 9 to drop.

In addition, when the guide tube 41 projects into the launching tube 3, the first step portion 33 and the second step portion 413 form a flat section 82 and abut the gunpowder nail 9. When the gunpowder explodes and burns The first step portion 33 and the second step portion 413 can be equally stressed, so that the first step portion 33 and the second step portion 413 are less likely to be damaged, and the durability can be improved.

Preferably, the size of the second small-diameter section 412 is equal to the radial size of the medicine chamber 93, and the radial size of the outer wall of the abutment section 92 is equal to the radial size of the first large-diameter section 31. The radial size of the second large diameter segment 411 is equal to the size of the first small diameter segment 32. Therefore, the guide tube 41 and the launch tube 3 can be tightly closed to prevent gas from leaking when the powder is burned and exploded, which will cause the thrust to drop.

The guide sleeve 42 is detachably connected to the guide tube 41 near one end of the launch tube 3. The guide tube 41 includes a body portion 43 and a larger-diameter head portion 44. The outer peripheral wall of the head portion 44 is provided with an externally threaded section 45, and the guide sleeve 42 is provided with an internally threaded section 46. The internally threaded segment is screwed to the externally threaded segment 45 to facilitate quick disassembly and assembly, and the screwed connection can have strong structural strength. In other embodiments, the externally threaded segment 45 and the internally threaded segment 46 are also Can be reversed. Therefore, the guide tube 41 and the guide sleeve 42 of the ceiling gun are detachable, and the guide tube 41 can be separately processed and formed during manufacture. It is only necessary to assemble with the guide sleeve 42, so the manufacturing cost is low, and when the guide tube 41 is damaged, it can be replaced separately, which can greatly reduce the cost of consumables for the user.

The guide sleeve 42 has a first flange 47 radially adjacent to one end of the launch tube 3, and a second flange 21 is provided radially inward from one end of the movable sleeve 2 away from the launch tube 3. When the movable sleeve 2 moves away from the body 1, the first flange 47 and the second flange 21 are locked against each other. When the internally threaded section 46 and the externally threaded section 45 are screwed together, the head The portion 44 and the end surface of the first flange 47 facing the launch tube 3 are in close proximity to form a flat surface 81, which can make the guide tube 41 and the guide sleeve 42 more tightly assembled, and can make The stress is evenly distributed between the guide tube 41 and the guide sleeve 42, so that the structural strength of the guide assembly 4 is more complete.

Further, the body 1 is provided with a first chute 11, the guide sleeve 42 is provided with a second chute 421, and a pin 12 is inserted through the striker rod 52 and the first chute. 11 and the second sliding groove 421, so that the guide sleeve 42 can be slid on the main body 1, the needle striking rod 52 can be slid on the guiding sleeve 42, and the needle striking rod 52 is provided with a The abutting member 53, the guide sleeve 42 is further provided with a limiting groove 422, and the limiting groove 422 is provided with an enlarged portion 423. When the elastic member 53 clicks against the enlarged portion 423, the striker rod 52 It cannot slide relative to this guide sleeve 42. In detail, in this embodiment, the body 1 is further provided with a firing block 16. In actual operation, as shown in FIG. 8 and FIG. 9, the launch tube 3 is pressed against an object and pushed toward the object. The launch tube 3, the movable sleeve 2, the guide sleeve 42 and the needle striking rod 52 slide relative to the main body 1 away from the object, and the needle striking rod 52 compresses the needle striking spring 15, When the guide sleeve 42 slides relative to the main body 1 and the firing block 16 is pressed against the elastic member 53, the elastic member 53 is separated from the enlarged portion 423 and the needle member 51 and the needle rod 52 are released. It can move relative to the guide sleeve 42. The needle striker 51 and the needle striker 52 are spring-biased by the needle spring 15 in the direction of the launch tube 3. The needle striker 51 can extend the guide. The tube 41 also hits the gunpowder in the gunpowder 9.

The body 1 is further provided with a connecting handle 13 at one end far from the launching tube 3, and the striking spring 15 is springed between the connecting handle 13 and the striking rod 52, and the connecting handle 13 is provided for an extension rod (not shown). (Illustrated) Assembling, the body 1 is additionally covered with a protective cover 14 which covers the first chute 11 to prevent the pin 12 from leaving the first chute 11. The ceiling gun is also provided with a reset Spring 17, the return spring 17 springs between the body 1 and the movable sleeve 2 so that the movable sleeve 2 has a tendency to move away from the body 1. After the gunpowder nail 9 is ejected and the launch tube 3 does not When abutting against the object, the launch tube 3, the movable sleeve 2, and the guide sleeve 42 are spring-backed by the reset spring 17, and the striker rod 52 slides relative to the guide sleeve 42 and The elastic abutment member 53 is reset to the enlarged portion 423, and the reset operation is completed.

In summary, when the gun of the present invention ignites and explodes, the second small-diameter section of the guide pipe extends into the medicine chamber, which can reduce the extra space in the medicine chamber to prevent The speed of gunpowder explosion and combustion is slowed down to reduce the instantaneous power, and it is possible to avoid that when the gunpowder explodes, some force is released in the direction of the guide tube, which causes the thrust of the gunpowder nail to drop.

In addition, the first step portion and the second step portion form a plane section and abut against the gunpowder nail. When the gunpowder explodes and burns, the first step portion and the second step portion can be equally stressed, so The first step portion and the second step portion are not damaged, and durability can be improved.

Claims (10)

A ceiling gun includes: a body; a movable sleeve slidably disposed on the body; a launch tube connected to one end of the movable sleeve away from the body; an inner wall of the launch tube is provided with a first large diameter section and a A first small-diameter section, a first step is formed between the first large-diameter section and the first small-diameter section, and a propellant nail is accommodated in the launch tube, and the propellant nail is abutted toward one end of the body. At the first step portion, a guide assembly is slidably disposed in the movable sleeve, and includes a guide tube and a guide sleeve connected to each other, and a first tube away from the guide sleeve is provided with a first Two large-diameter sections and a second small-diameter section. A second step is formed between the second large-diameter section and the second small-diameter section. When the guide tube extends into the launch tube, the powder nails An end facing the body is abutted against the second step; a striker assembly is slidably disposed in the movable sleeve, and includes a striker spring and a striker and a striker rod connected to the striker. A rod system is slidably disposed in the guide sleeve, the needle striking member is slidably disposed between the guide tube and the guide sleeve, and the needle spring springs against the notebook. The firing pin shaft, so that the firing pin has a tendency to move the shaft within the launch tube towards the firing pin member. The ceiling gun according to claim 1, wherein when the guide tube extends into the launch tube, the first step portion and the second step portion form a plane section and abut the gun nail. The ceiling gun according to claim 1, wherein the gunpowder nail includes a nail body connected to a large diameter abutment top, the abutment top has a medicine chamber for containing a gunpowder, and a peripheral wall of the medicine chamber is provided with a One end of the threaded portion far from the nail body is abutted against the first step portion, and the sum of the thicknesses of the first step portion and the second step portion is equal to the wall thickness of the top portion. The ceiling gun according to claim 3, wherein the size of the second small-diameter section is equal to the radial size of the medicine room, and the radial size of the outer wall that reaches the top is equal to the radial size of the first large-diameter section. . The ceiling gun according to claim 1, wherein a radial dimension of the second large diameter segment is equal to a dimension of the first small diameter segment. The ceiling gun according to claim 1, wherein the guide sleeve is detachably connected to the guide tube adjacent to one end of the launch tube. The ceiling gun according to claim 6, wherein the guide tube includes a body connected with a larger diameter head, an outer thread section is provided on the outer peripheral wall of the head, and the guide sleeve is provided with a An internally threaded section, which is screwed with the externally threaded section. The ceiling gun according to claim 7, wherein the guide sleeve has a first flange radially outwardly adjacent to one end of the launch tube, and the movable sleeve is provided with a second radially inwardly away from one end of the launch tube. Flange, when the movable sleeve is moved away from the body, the first flange and the second flange are locked against each other, and when the internal thread segment is screwed with the external thread segment, the head A flat surface is formed adjacent to the end surface of the first flange facing the launch tube. The ceiling gun according to claim 1, wherein the body is provided with a first chute, the guide sleeve is provided with a second chute, and a pin is provided through the striker rod and the first slide. Between the slot and the second sliding slot, the needle striker is provided with a spring-resisting part, the guide sleeve is further provided with a limit slot, the limit slot is provided with an enlarged part, and when the spring-resisting part snaps into the During the enlarged portion, the needle striking rod cannot slide relative to the guide sleeve. The ceiling gun according to claim 9, wherein one end of the body remote from the launch tube is provided with a connecting handle, and the firing spring is springed against the connecting handle and the needle rod, and the connecting handle is provided for an extension. The rods are connected together, and the body is additionally covered with a protective cover which covers the first chute, and the ceiling gun is further provided with a return spring which springs between the body and the movable sleeve. So that the movable sleeve has a tendency to move away from the body; when the guide tube extends into the launch tube, the first step portion and the second step portion form a flat section and abut the gunpowder The gun nail comprises a nail body connected with a large diameter abutment top, the abutment top has a medicine chamber for containing a gunpowder, and a peripheral part of the medicine chamber is provided with a thread part, and the abutment top is away from the nail. One end of the body abuts against the first step portion, and the sum of the thicknesses of the first step portion and the second step portion is equal to the wall thickness of the abutting portion; the size of the second small diameter section is equal to that of the medicine room. Radial dimension, the radial dimension of the outer wall of the top is equal to the diameter of the first large diameter section The radial dimension of the second large diameter segment is equal to the size of the first small diameter segment; the end of the guide sleeve adjacent to the launch tube is detachably connected to the guide tube; the guide The guide tube includes a body connected to the head and a larger diameter head. An external thread section is provided on the outer peripheral wall of the head. The guide sleeve is provided with an internal thread section. The internal thread section is connected with the external thread. The segments are screwed together; the guide sleeve is adjacent to one end of the launch tube and has a first flange radially toward the outer periphery, and the movable sleeve is provided with a second flange radially inward from one end of the launch tube. When the sleeve moves away from the body, the first flange and the second flange are locked against each other. When the internally threaded section and the externally threaded section are screwed together, the head and the first flange are engaged. The end surface facing the launch tube is adjacent to form a flat surface.