CN210173470U

CN210173470U - Integrated nail fixer

Info

Publication number: CN210173470U
Application number: CN201920348933.8U
Authority: CN
Inventors: Guangzhong Hu; 胡光忠; Cong Deng; 邓聪; Liu Yuan; 袁柳; Yu Yang; 杨余; Duqing Qu; 屈督清
Original assignee: Sichuan University of Science and Engineering
Current assignee: Sichuan University of Science and Engineering
Priority date: 2019-03-19
Filing date: 2019-03-19
Publication date: 2020-03-24
Anticipated expiration: 2029-03-19

Abstract

The utility model discloses a shooting nail, including head and tip, be provided with the explosive groove along its axial on the tip, the explosive has been placed to the explosive inslot. The integrated nail fixer for the nail shooting comprises a shell, a driving cylinder and a firing device, wherein the shell is used for supporting the driving cylinder and the firing device; the power cylinder is matched with the firing device to provide power for the shooting nail and eject the shooting nail; the firing device is used for exciting explosive in the explosive groove on the shooting nail to enable the shooting nail to generate power; the heat conducting piece is matched with the firing device to detonate explosive in the explosive groove on the shooting nail so that the shooting nail generates power; the firing device is a pressure regulating device, the pressure regulating device can instantly heat the heat conducting piece and excite the explosive on the nail, the explosive is detonated by high temperature caused by the change of current, parts such as a piston rod are not needed, the number of the parts is reduced, and the production cost is reduced.

Description

Integrated nail fixer

Technical Field

The utility model belongs to the technical field of fastening equipment and specifically relates to an integral type nail fixer.

Background

The nail shooter belongs to the modern nail shooting fastening equipment, can shoot the nail and belongs to the direct consolidation technology. Is a necessary manual tool for carpentry, building construction and the like. The tool is a tool for driving a shooting nail into a building body by using gunpowder gas generated by launching an empty cartridge as power. The blank cartridge for shooting the shooting nail is different from the common military blank cartridge only in size, and has the same harm effect on people.

Nail guns can be classified into direct-acting nail guns and indirect-acting nail guns according to the action principle. The direct-acting nail shooter directly acts on the shooting nail by gunpowder gas to push the shooting nail to move. Thus, the nail has a high velocity (approximately 500 m/s) and kinetic energy as it flies off the nail tube. The gunpowder gas of the indirect action nail shooter does not directly act on the nail, but acts on a piston rod in the nail shooter, and the energy is transmitted to the nail through the piston rod. In our already filed patent application No. 201920044820.9, an indirect acting nailer is provided in which the power of a nail driver cylinder is transmitted to the nail through the piston rod by the action of explosive charges on the piston rod, and the nail is shot out. Both direct-acting and indirect-acting nailers detonate the explosive charge by striking the cartridge, in which case the firing causes an extremely complicated mechanical construction of the nailer. At present, the same domestic product has a plurality of problems, such as complicated structure, high precision requirement, large quantity and the like of parts, which cause the production of the nail shooter to be difficult and the cost to be difficult to control. Today, the demand for tackers is enormous both domestically and abroad, but is limited by safety and cost issues, and the yield has remained the same. And the ignition of the gunpowder

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an integral type nail fixer is provided, simple structure, the part is few.

Realize the utility model discloses a principle is: compare in traditional ail shooter, the utility model discloses the structure of the solid nail ware of integral type is different completely, and traditional solid nail ware detonates the explosive through striking shooting bullet, the utility model discloses a high temperature that brings with the current rheology detonates the explosive, thereby borrows the principle of step-down transformer, thereby voltage reduces suddenly or the electric current increases suddenly and all can make the conductor generate heat in the twinkling of an eye and produce the high temperature and detonate the explosive.

The utility model adopts the technical proposal that: the shooting nail comprises a head part and an end part, wherein a explosive groove is arranged on the end part along the axial direction of the end part, and explosives are placed in the explosive groove.

Also provides an integrated nail fixer for the nail shooting, which comprises

The shell is used for supporting the power cylinder and the firing device;

the power cylinder is matched with the firing device to provide power for the shooting nail and eject the shooting nail;

the firing device is used for exciting explosive in the explosive groove on the shooting nail to enable the shooting nail to generate power;

the heat conducting piece is matched with the firing device to detonate explosive in the explosive groove on the shooting nail so that the shooting nail generates power;

the percussion device is a pressure regulating device which can instantly heat the heat conducting piece and excite the explosive on the nail.

Further, the casing includes procapsid and back casing, and the procapsid can be dismantled with the back casing and be connected, and the pressure regulating device sets up in the back casing, and outside the power cylinder set up in the procapsid and its injection end stretches out the procapsid, power cylinder can follow its axis reciprocating motion relative pressure regulating device.

Further, the pressure regulating device comprises a shell, a reset guide pin and a conducting strip matching pin are arranged on the shell, a reset spring is sleeved on the reset guide pin, a pressure regulating circuit is arranged in the shell, the pressure regulating circuit is connected with a power supply and a switch to form an open circuit, and the battery and the switch are installed on the rear shell.

Furthermore, the heat conducting piece comprises a heat conducting head and a conducting strip which are arranged in the power cylinder, the conducting strip is fixed in the power cylinder by a seat sleeve, and a closed circuit is formed when the conducting strip is matched with the pin and is contacted with the conducting strip.

Further, the power cylinder includes the link, jets out the end and is provided with along its axis and penetrates the nail guide way, and the link has set gradually seat cover mounting groove, conducting strip mounting groove, the first mounting hole of heat conduction along its axis, and the first mounting hole of heat conduction with penetrate the nail guide way intercommunication, the link still be provided with the guide pin complex that resets guide hole that resets.

The utility model has the advantages that:

(1) because the explosive is detonated by high temperature caused by the change of current, parts such as a piston rod and the like are not needed, the number of the parts is reduced, and the production cost is reduced.

(2) The explosive and the shooting nail are designed into an integrated structure, so that the shooting nail device does not need mechanical structure percussion parts such as a piston rod and the like, the structure of the shooting nail device is simplified, the explosive is directly acted on the shooting nail after being detonated, energy consumption of other parts is avoided, and compared with the traditional shooting nail device, the purpose can be achieved only by less explosive.

Drawings

Fig. 1 is a front view of the conductive sheet of the present invention.

Fig. 2 is a side view of the conductive sheet of the present invention.

Fig. 3 is a structural view of the thermal head of the present invention.

Fig. 4 is a structural diagram of the battery of the present invention.

Fig. 5 is a structural diagram of the voltage regulating circuit of the present invention.

Fig. 6 is a front view of the power cylinder of the present invention.

Fig. 7 is a longitudinal sectional view of the power cylinder of the present invention.

Fig. 8 is a front view of the pressure adjusting device of the present invention.

Fig. 9 is a side view of the pressure adjusting device of the present invention.

Fig. 10 is a structural view of the nail of the present invention.

Fig. 11 is an installation schematic diagram of the power cylinder, the pressure regulating device and the battery of the present invention.

Fig. 12 is an installation schematic diagram of the power cylinder and the pressure regulating device of the present invention.

Fig. 13 is a schematic structural view of the integrated nail shooter of the present invention.

Fig. 14 is a structural view of the seat cover of the present invention.

Fig. 15 is a longitudinal sectional view of the seat cover of the present invention.

Labeled as: 1-grip, 2-button, 3-rear shell, 4-front shell, 5-power cylinder, 6-seat cover, 7-pressure regulating device, 8-battery, 9-reset spring, 11-reset guide hole, 12-seat cover mounting hole, 13-conducting strip mounting groove, 14-conducting strip mounting hole, 15-battery jack, 16-conducting strip matching pin, 17-reset guide pin, 18-conducting strip matching pin shaft hole, 19-explosive, 20-end, 21-head, 22-conducting strip, 23-conducting strip, 24-primary coil, 25-secondary coil and 26-shell.

Detailed Description

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

Based on the problem of the complicated structure of the conventional nail fixer, which is largely due to the detonation of the explosive charge by impact, the applicant considered to simplify the structure of the nail shooter by changing the detonation mode of the explosive charge. Based on the above reasons, the applicant considers that the mode is applied to the structural design of the nail shooter by taking the principle of the voltage reducer as an example, the voltage is suddenly reduced, the current is suddenly increased, the conductor is instantly heated to generate high temperature, and the explosive can be detonated.

Owing to adopt above-mentioned explosive to explode the mode, it is preferred, in order to simplify the ail shooter structure, can design into as an organic whole structure as shown in figure 10 with the explosive with penetrating the nail, promptly the utility model discloses a penetrate the nail, including head 21 and tip 20, be provided with the explosive groove along its axial on tip 20, the explosive 19 has been placed to the explosive inslot, and general explosive setting is put at the central point of its tip 20, guarantees to penetrating the nail application of force after the explosive explodes balanced. Specifically, the shooting nail is manufactured by processing a plastic shell at the end part of a special steel nail, and the processing mode can adopt external casting hot melt plastic; an explosive groove for installing the explosive is reserved in the shell, the explosive compressed into the column shape can be directly placed in the explosive groove, and the size of the explosive groove is slightly larger than that of the column shape, so that the explosive can be placed in the explosive groove, and the explosive cannot be separated from the explosive groove.

In view of the fact that the explosive 19 on the nail is detonated by the heat generated by the change of voltage, as shown in fig. 13, the utility model designs an integrated nail fixer, which comprises a shell for supporting a power cylinder 5 and a firing device; the power cylinder 5 is matched with the firing device to provide power for shooting the nails and eject the nails; the firing device excites the explosive 19 in the explosive groove on the shooting nail to make the shooting nail generate power; the heat conducting piece is matched with the firing device to detonate the explosive 19 in the explosive groove on the shooting nail so that the shooting nail generates power; the firing device is a pressure regulating device 7, and the pressure regulating device 7 can heat the heat conducting piece instantly and excite the explosive 19 on the shooting nail.

Further, the casing includes procapsid and back casing, and the procapsid can be dismantled with the back casing and be connected, and pressure regulating device 7 sets up in the back casing, and outside power cylinder 5 set up in the procapsid and its injection end stretches out the procapsid, power cylinder 5 can follow its axis reciprocating motion relative to pressure regulating device 7. To facilitate the hand-held nailing device, the rear housing is generally designed to have a gun-like external configuration with a grip 1 as shown in fig. 13, with a battery 8 disposed within the grip 1 and a switch button 2 disposed on the outer surface of the grip 1. The front shell 4 and the rear shell 3 are provided with matched threads which are connected by threads. In order to facilitate the battery 8 to be placed in the handle 1 of the rear housing, the bottom of the handle 1 of the rear housing is detachably configured, and when the battery 8 needs to be replaced, the bottom is detached and the battery 8 is taken out and replaced.

Further, for the convenience of operation, the pressure adjusting device 7 is generally designed as shown in fig. 8 and 9, the housing 26, the pressure adjusting circuit, the return guide pin 17, and the conductive piece engaging pin 16 are designed as an integral structure, the return guide pin 17 is fitted with the return spring 9 when mounted on the power cylinder 5, the pressure adjusting circuit forms the battery insertion hole 15 in the housing 26 for inserting the battery 8 mounted in the grip 1 of the rear case, the battery 8 has the positive and negative contacts as shown in fig. 4 and can be inserted into the battery insertion hole 15, and the pressure adjusting circuit is shown in fig. 5. The switch is connected with the voltage regulating circuit in series, and the button 2 is arranged on the outer surface of the grip 1.

Further, the voltage regulating circuit generally adopts a voltage regulating circuit as shown in fig. 5, which includes two coils connected in series, a battery 8 and a switch are connected in series on the primary coil 24, the secondary coil 25 is arranged in an open circuit, and a positive contact and a negative contact are arranged on the housing 26, and a conductive sheet matching pin 16 capable of conducting electricity is connected on both the positive contact and the negative contact. The ignition point of the explosive 19 is generally about 50 ℃, the input voltage of the voltage regulating circuit is generally set as 220V, the output voltage is set as 36V, the 220V voltage is reduced to 36V, the high temperature of about 300 ℃ can be generated, and the explosive 19 can be sufficiently detonated.

Further, the heat conducting member includes a heat conducting head 23 installed in the cylinder 5 and a conducting plate 22, the conducting plate 22 is fixed in the cylinder 5 by the sleeve 6, and the conducting plate mating pin 16 forms a closed circuit when contacting the conducting plate 22. Specifically, as shown in fig. 14 and 15, the seat cover 6 has a cylindrical structure matching with the installation groove of the seat cover 6, and is provided with a conductive sheet fitting pin hole 18 fitted with the conductive sheet fitting pin 16, and the conductive sheet fitting pin 16 can slide in the conductive sheet fitting pin hole 18 to the conductive sheet 22, so that the voltage regulating circuit forms a closed circuit. The circumferential surface of the seat sleeve 6 is provided with threads, and the seat sleeve 6 is arranged in the seat sleeve mounting hole 12 through the threads. In order to match the distance between the two conductive plates and the pin 16, the conductive plate 22 is designed as shown in fig. 1 and 2, and the conductive plate 22 is made of a material which can conduct electricity and has good heat conductivity, so that the heat loss when the conductive plate 22 transfers heat to the heat conducting head 23 can be reduced, and the explosive 19 can be detonated. The thermal head 23 is designed as shown in fig. 3, and has a size matching with the thermal head mounting hole 14, and the thermal head 23 is made of a material with good thermal conductivity, such as iron-nickel alloy.

Further, as shown in fig. 6 and 7, the power cylinder 5 includes a connection end and an ejection end, the ejection end is provided with an ejection nail guide groove along an axis thereof, the connection end is sequentially provided with a seat cover 6 mounting groove, a conductive sheet mounting groove 13 and a heat conduction head mounting hole 14 along the axis thereof, the heat conduction head mounting hole 14 is communicated with the ejection nail guide groove, and the connection end is further provided with a reset guide hole 11 matched with the reset guide pin 17.

The installation process of the integrated nail shooter is as follows:

installation of pressure regulating device 7 and back casing: firstly, the installed pressure regulating device 7 with an integrated structure is installed into the rear shell 3, then the battery 8 is installed from the bottom of the handle 1, the anode and the cathode of the battery 8 are inserted into the battery jacks 15, and then the bottom of the handle 1 is fixed by screwing the screws.

And (3) mounting parts in the power cylinder 5: the heat conducting head 23 is installed in the heat conducting head installation hole 14 of the power cylinder 5, then the conducting strip 22 is installed in the conducting strip installation groove 13, and finally the seat cover 6 is installed in the seat cover installation hole 12 through threads to fix the conducting strip 22.

Installation of the pressure regulating device 7 and the power cylinder 5: as shown in fig. 11 and 12, the reset spring 9 is installed on the reset guide pin 17, then the conductive sheet matching pin 16 and the reset guide pin 17 are respectively inserted into the conductive sheet matching pin shaft hole 18 and the reset guide hole 11, and finally the front shell 4 is connected with the rear shell 3 through threads, so that the installation is completed, and after the installation, a certain gap is ensured between the conductive sheet 22 and the conductive sheet matching pin 16, so that the open circuit of the voltage regulating circuit is ensured.

When the integrated nail shooter is used, a shooting nail is put into the bottom of the power cylinder 5 from the shooting end of the power cylinder along the nail shooting guide groove, then the shooting end of the power cylinder 5 touches the base body of the needed shooting nail, the power cylinder 5 is pushed slightly hard, the power cylinder 5 moves towards the pressure regulating device 7 until the conducting strip matching pin 16 touches the conducting strip 22, then the button 2 is pressed to electrify the pressure regulating circuit, heat generated by the pressure regulating circuit after electrification heats the heat conducting head 23, the explosive 19 is detonated and pushes the shooting nail to be shot to complete the fastening action, finally, the nail shooter leaves the base body, the pressure regulating device 7 returns to the original position under the action of the reset spring 9, and the pressure regulating circuit is opened again.

Claims

1. The integral type nail fixer for one kind is penetrated the nail, penetrate the nail and include head (21) and tip (20), be provided with explosive groove along its axial on tip (20), explosive (19) have been placed to the explosive inslot, its characterized in that: comprises that

The shell is used for supporting the power cylinder (5) and the firing device;

the power cylinder (5) is matched with the firing device to provide power for shooting the nails and eject the nails;

the firing device is used for exciting explosive (19) in the explosive groove on the shooting nail to enable the shooting nail to generate power;

the heat conducting piece is matched with the firing device to detonate explosive (19) in an explosive groove on the shooting nail so as to enable the shooting nail to generate power;

the firing device is a pressure regulating device (7), and the pressure regulating device (7) can instantly heat the heat conducting piece and excite explosive (19) on the nail.

2. The integrated nail holder of claim 1, wherein: the casing includes procapsid and back casing, and the procapsid can be dismantled with the back casing and be connected, and pressure regulating device (7) set up in the back casing, outside power cylinder (5) set up in the procapsid and its injection end stretches out the procapsid, power cylinder (5) can be relative pressure regulating device (7) along its axis reciprocating motion.

3. The integrated nail holder of claim 2, wherein: the voltage regulating device (7) comprises a shell, a reset guide pin (17) and a conducting plate matching pin (16) are arranged on the shell, a reset spring (9) is sleeved on the reset guide pin (17), a voltage regulating circuit is arranged in the shell, the voltage regulating circuit is connected with a power supply and a switch to form an open circuit, and a battery (8) and the switch are installed on the rear shell.

4. The integrated nail holder of claim 3, wherein: the heat conducting piece comprises a heat conducting head (23) and a conducting strip (22) which are arranged in the power cylinder (5), the conducting strip (22) is fixed in the power cylinder (5) by a seat sleeve (6), and a closed circuit is formed when the conducting strip matching pin (16) is contacted with the conducting strip (22).

5. The integrated nail holder of claim 4, wherein: the power cylinder (5) comprises a connecting end and an ejecting end, wherein the ejecting end is provided with an ejecting nail guide groove along the axis of the ejecting end, the connecting end is sequentially provided with a seat sleeve mounting hole (12), a conducting strip mounting groove (13) and a heat conducting head mounting hole (14) along the axis of the connecting end, the heat conducting head mounting hole (14) is communicated with the ejecting nail guide groove, and the connecting end is further provided with a reset guide hole (11) matched with a reset guide pin (17).