CN213647422U - C-shaped pneumatic nail gun - Google Patents
C-shaped pneumatic nail gun Download PDFInfo
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- CN213647422U CN213647422U CN202022250991.2U CN202022250991U CN213647422U CN 213647422 U CN213647422 U CN 213647422U CN 202022250991 U CN202022250991 U CN 202022250991U CN 213647422 U CN213647422 U CN 213647422U
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- cavity
- air guide
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- air
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Abstract
The utility model discloses a C-shaped pneumatic nail gun, which comprises a shell, an air guide valve arranged in the shell, a piston shaft arranged in the air guide valve, a fixing piece connected with the shell, a switch thimble connected with the piston shaft, a switch guide sleeve sleeved on the switch thimble, a trigger used for driving the switch thimble to move and a firing pin component connected with the shell; the air guide valve comprises an air guide valve body, an air guide hole formed in the air guide valve body and an air guide sealing ring sleeved on the air guide valve body, and the air guide hole and the air guide sealing ring are arranged at intervals; the piston shaft moves back and forth in the air guide valve and comprises a piston shaft body, a piston shaft air hole formed in the piston shaft body and a cavity located in the piston shaft, and the piston shaft air hole is communicated with the cavity. The utility model provides a pneumatic nail rifle of C type, the reaction is sensitive, alleviates long-term use's fatigue, labour saving and time saving.
Description
Technical Field
The utility model relates to a pneumatic nail rifle seals technical field, especially relates to a pneumatic nail rifle of C type.
Background
The pneumatic nail gun is an automatic nail clamping device which clamps C-shaped nails on an object through gun nozzle nails by utilizing high-pressure air. The existing pneumatic nail gun has the defects that the acting force for pulling the trigger is large due to the structure of the existing pneumatic nail gun, in addition, the shape stroke of the switch thimble needs to be at least 3mm, so that an operator needs to pull the trigger by at least 3mm to start working, the operator is tired due to long-time operation, and the working efficiency is influenced.
On the other hand, in the existing pneumatic nail gun, the nail gun needs to be disassembled from a switch thimble, an air guide valve nut and a wrench of the nail gun, so that the disassembling process is complicated, and much trouble is brought to later maintenance.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a C type pneumatic nail rifle is provided, simple structure, the stroke is short, and the reaction is fast, and the dynamics of pulling the trigger is little.
In order to solve the technical problem, the utility model provides a C type pneumatic nail gun, including the shell, locate air guide valve in the shell, locate in the air guide valve piston shaft, the mounting that is connected with the shell, with the switch thimble that the piston shaft is connected, the switch guide pin bushing of cover locating on the switch thimble, be used for driving the trigger of switch thimble motion and with the firing pin subassembly that the shell is connected;
the air guide valve comprises an air guide valve body, an air guide hole formed in the air guide valve body and an air guide sealing ring sleeved on the air guide valve body, and the air guide hole and the air guide sealing ring are arranged at intervals;
the piston shaft moves back and forth in the air guide valve and comprises a piston shaft body, a piston shaft air hole formed in the piston shaft body and a cavity located in the piston shaft body, and the piston shaft air hole is communicated with the cavity.
Preferably, the housing comprises a housing body, a first cavity arranged in the housing body and a second cavity arranged in the housing body, the first cavity is communicated with an external air source, and two ends of the air guide valve body are provided with air guide sealing rings;
at least one air guide hole is communicated with the first cavity.
Preferably, the maximum outer diameter of the piston shaft body is equal to the inner diameter of the air guide valve;
a groove and a piston shaft sealing ring are arranged on the outer wall of the piston shaft body, and the groove and the piston shaft sealing ring are arranged at intervals;
the groove and the inner wall of the air guide valve body form a third cavity, and the position of the third cavity is matched with the position of the air guide hole.
Preferably, the cavity comprises a fourth cavity and a fifth cavity;
the fourth cavity is a closed cavity formed by enclosing the piston shaft and the switch thimble, the fifth cavity is a closed cavity formed by enclosing the piston shaft and the fixing piece, and the fourth cavity and the fifth cavity are respectively communicated with the third cavity through piston shaft air holes;
the volume of the fourth cavity is larger than that of the fifth cavity.
Preferably, a compression spring is further arranged in the cavity, and the compression spring comprises a first compression spring located in the fourth cavity and a second compression spring located in the fifth cavity.
Preferably, the switch thimble includes a thimble body, a first sealing member sleeved on the thimble body, and a second sealing portion sleeved on the thimble body, wherein the thimble body is partially exposed outside the housing.
Preferably, the switch guide sleeve is sleeved at one end of the thimble body;
the first sealing piece or the second sealing piece is abutted against the switch guide sleeve.
Preferably, the switch guide sleeve is connected with one end of the air guide valve in a sealing manner, and a gap is formed between the switch guide sleeve and the piston shaft;
and the switch guide sleeve, the inner wall of the air guide valve and the end part of the piston shaft mutually enclose to form a closed sixth cavity.
Preferably, an accommodating cavity is formed in the housing, and the tail end of the striker assembly is located in the accommodating cavity and divides the accommodating cavity into two closed cavities, namely a seventh cavity and an eighth cavity.
Preferably, a first gun body air passage and a second gun body air passage are further arranged in the shell, and the first gun body air passage is communicated with the air guide hole and the seventh cavity;
the second gun body channel is communicated with the eighth cavity and the air guide hole;
a ninth cavity is enclosed between the tail end of the piston shaft and the air guide valve body;
and the eighth cavity is communicated with the ninth cavity through a second gun body channel and an air guide hole.
Implement the utility model discloses, following beneficial effect has:
1. the utility model provides a pneumatic nail rifle of C type through the setting of air guide valve, piston shaft, switch thimble and switch guide pin bushing for the nail rifle is in the use, and the effort of pulling the trigger has reduced 50% compared in the effort of traditional nail rifle, and the stroke of switch thimble is reduced for 2mm by traditional at least 3mm, and reaction rate is fast, and the reaction is sensitive, alleviates long-term use's fatigue, labour saving and time saving.
2. The utility model provides a pneumatic nail rifle of C type, during the dismantlement, only need be in one side of mounting demolish can, convenient and fast, the later maintenance of being convenient for.
Drawings
Fig. 1 is a schematic structural view of a C-type pneumatic nail gun according to the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a schematic structural view of the air guide valve of the C-shaped pneumatic nail gun of the present invention;
FIG. 4 is a schematic view of the piston shaft of the C-type pneumatic nailer of the present invention;
FIG. 5 is a schematic view of another embodiment of the C-type pneumatic nailer of the present invention;
FIG. 6 is an enlarged view at B in FIG. 5;
fig. 7 is a schematic structural view of the switch thimble of the C-type pneumatic nail gun of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-2, the utility model provides a C-type pneumatic nail gun, which comprises a housing 1, an air guide valve 2 arranged in the housing 1, a piston shaft 3 arranged in the air guide valve 2, a fixing member 4 connected with the housing 1, a switch thimble 5 connected with the piston shaft 3, a switch guide sleeve 6 sleeved on the switch thimble 5, a trigger 7 for driving the switch thimble 5 to move, and a firing pin assembly 8 connected with the housing 1;
as shown in fig. 3, the air guide valve 2 includes an air guide valve body 21, an air guide hole 22 formed in the air guide valve body 21, and an air guide sealing ring 23 sleeved on the air guide valve body 21, wherein the air guide hole 22 and the air guide sealing ring 23 are arranged at an interval;
as shown in fig. 4, the piston shaft 3 reciprocates inside the air guide valve 2, and includes a piston shaft body 31, a piston shaft air hole 32 formed in the piston shaft body 31, and a cavity 33 located inside the piston shaft body 31, and the piston shaft air hole 32 communicates with the cavity 33.
As shown in fig. 5, the housing 1 is used for fixing the air guide valve 2, the piston shaft 3, the switch thimble 5, the switch guide sleeve 6 and the trigger 7, so that the pneumatic nail gun can be assembled into an integrated structure, and the pneumatic nail gun comprises a housing body 11, a first cavity 12 arranged in the housing body, and a second cavity 13 arranged in the housing body, wherein the first cavity 13 is communicated with an external air source, so that the external air source can be conveniently introduced into the first cavity 12, and the second cavity 13 is a non-closed cavity for discharging the air in the pneumatic nail gun.
As shown in fig. 3, the air guide valve 2 is disposed in the casing body 11, and includes an air guide valve body 21, air guide holes 22 disposed on the air guide valve body 21, and air guide sealing rings 23 sleeved on the air guide valve body 21, wherein the air guide valve body 21 is fixed in the casing body 11, the air guide holes 22 are disposed on the air guide valve body 21, wherein at least one air guide hole 22 is communicated with the first cavity 12, the air guide sealing rings 23 are sleeved on the air guide valve body 21 and spaced from the air guide holes 22, and the air guide sealing rings 23 are disposed at two ends of the air guide valve body 21, so as to ensure that each air guide hole 22 can be sealed by the air guide sealing ring 23, thereby preventing air leakage.
As shown in fig. 4, the piston shaft 3 is disposed in the air guide valve 2, that is, the air guide valve 2 is sleeved on the piston shaft 3, and the piston shaft 3 can reciprocate in the air guide valve 2, and the piston shaft 3 includes a piston shaft body 31, a piston shaft air hole 32 disposed on the piston shaft body 31, and a cavity 33 located in the piston shaft body 31, wherein the maximum outer diameter of the piston shaft body 31 is equal to the inner diameter of the air guide valve 2, so as to ensure that the piston shaft 3 can move inside the air guide valve 2, a groove 34 and a piston shaft sealing ring 35 are disposed on the outer wall of the piston shaft body 31, and the groove 34 and the piston shaft sealing ring 35 are disposed at an interval, so as to ensure that each groove 34 can be sealed by the piston shaft sealing ring 35.
As shown in fig. 6, the groove 34 and the inner wall of the air guide valve body 21 form a third cavity 36, and the position of the third cavity 36 matches with the position of the air guide hole 22, so that the third cavity 36 can be ensured to be capable of air inlet or outlet through the air guide hole 22.
The piston shaft air hole 32 is used for realizing communication between the cavity 33 and the third cavity 36, the cavity 33 includes a fourth cavity 33a and a fifth cavity 33b, wherein the fourth cavity 33a is a sealed cavity enclosed by the piston shaft 3 and the switch thimble 5, the fifth cavity 33b is a sealed cavity enclosed by the piston shaft 3 and the fixing member 4, the fourth cavity 33a and the fifth cavity 33b are respectively communicated with the third cavity 36 through the piston shaft air hole 32, and the volume of the fourth cavity 33a is larger than that of the fifth cavity 33b, so when the third cavity 36 is filled with compressed air, the air simultaneously enters the fourth cavity 33a and the fifth cavity 33b, thereby enabling the piston shaft 3 to move forward rapidly.
Preferably, in order to save the trigger pulling force, a compression spring 9 is further disposed in the cavity 33, and the compression spring 9 includes a first compression spring 91 located in the fourth cavity 33a and a second compression spring 92 located in the fifth cavity 33 b.
The fixing member 4 is connected to the housing 1, is located at the end of the air guide valve 2, and cooperates with the piston shaft 3 to form a fifth cavity 33b and limit the piston shaft 3. In this embodiment, the fixing member 4 is a gas guiding valve nut, and in order to facilitate gas exhaust, the fixing member 4 is provided with a gas exhaust hole.
As shown in fig. 7, the switch thimble 5 is used for applying force to the piston shaft 3, and is abutted against the compression spring 9 so as to drive the piston shaft 3 to move. Specifically, switch thimble 5 includes thimble body 51, the cover is located first sealing member 52 on thimble body 51 and cover are located second sealing portion 53 on thimble body 51, wherein thimble body 51 part expose in outside shell 1, guarantee trigger 7 can act on thimble body 51 realizes switch thimble 5's pushing function, first sealing member 52 and second sealing member 53 are used for realizing switch thimble 5 with seal between the switch guide pin 6.
The switch guide sleeve 6 is sleeved at one end of the thimble body 51, and sealing at different positions is realized through mutual butt joint of the first sealing element 52 and the switch guide sleeve 6 or mutual butt joint of the second sealing element 53 and the switch guide sleeve 6.
In this embodiment, the switch guide sleeve 6 is hermetically connected with one end of the air guide valve 2, and a gap is formed between the switch guide sleeve 6 and the piston shaft 3, so that the switch guide sleeve 6, the inner wall of the air guide valve 2 and the end portion 3 of the piston shaft enclose each other to form a sealed sixth cavity 61.
Trigger 7 with but shell 1 swivelling joint, and with the mutual butt of switch thimble 5, the trigger 7 is pulled, makes trigger 7 can act on switch thimble 5 to realize the function of automatic nailing.
As shown in fig. 5 to 6, the striker assembly 8 is connected to the housing and reciprocates under the action of an air flow, specifically, an accommodating cavity is provided in the housing 1, the end of the striker assembly 8 is located in the accommodating cavity and divides the accommodating cavity into two closed cavities, namely a seventh cavity 81 and an eighth cavity 82, and the striker assembly 8 is pushed to reciprocate by the volume change of the seventh cavity 81 and the eighth cavity 82, thereby realizing the automatic nailing function of the nail gun.
Correspondingly, in order to enable the airflow in the third cavity 36 to smoothly enter the seventh cavity 81, a first gun body air passage is further arranged in the housing 1, and the first gun body air passage is communicated with one of the air guide holes in the air guide valve 2 and the seventh cavity 81, so that the gun body air passage is selectively opened or closed in the movement process of the piston shaft 3, and the airflow can enter different passages as required.
In order to enable the gas in the eighth cavity 82 to be smoothly discharged, a second gun body air passage is further arranged in the housing 1, the second gun body air passage is communicated with the eighth cavity 82 and one of the air guide holes, a ninth cavity 83 is further enclosed between the tail end of the piston shaft 3 and the air guide valve body 21, and the eighth cavity 82 and the ninth cavity 83 are communicated through the second gun body air passage and the air guide hole. The ninth cavity 83 is communicated with the outside through an exhaust hole in the fixing member 4.
The utility model provides a C type pneumatic nail rifle pushes away the nail in-process, and in outside air supply got into first cavity 12, and one of them gas guide hole 22 on the rethread gas guide valve 2 got into in the third cavity 36, the gas in the third cavity 36 got into respectively through two piston gas holes 32 in fourth cavity 33a and the fifth cavity 33b, because the volume ratio of fourth cavity 33a the volume of fifth cavity 33b is big, so pressure in the fourth cavity 33a is greater than pressure in the fifth cavity 33b, thereby promote piston shaft 3 antedisplacement, until piston shaft 3 front end with the mutual butt of switch guide pin bushing 6, sixth cavity 61 is compressed, and discharge in its inside gas passes through the clearance between switch thimble 5 and the switch guide pin bushing 6. Meanwhile, as the piston shaft 3 moves forward, the first gun body air passage is communicated, the gas in the third cavity 36 enters the seventh cavity 81 through the first gun body air passage, so as to push the striker assembly 8 to move forward, and the gas in the eighth cavity 82 is exhausted through the second cavity 13 and the ninth cavity 83.
In the closing process of the clamp, a trigger is pulled, the switch ejector pin 5 is pushed to move backwards and is tightly attached to the switch guide sleeve 6, the gas in the first cavity 12 enters the third cavity 36 and then simultaneously enters the fourth cavity 33a and the fifth cavity 33b, the gas in the fourth cavity 33a enters the sixth cavity 61, the piston shaft 3 moves backwards quickly due to the fact that the volume of the sixth cavity 61 is smaller than that of the fifth cavity 33b until the piston shaft 3 is abutted against the fixing piece 4, the piston shaft 3 moves backwards to enable the second gun body air passage to be communicated, and at the moment, the gas in the third cavity 36 enters the eighth cavity 82 through the second gun body air passage and the air guide hole 22, so that the firing pin assembly 8 is pushed to move backwards, and closing of the clamp is achieved. Meanwhile, the gas in the seventh cavity 81 passes through the gap around the gas guide valve 2, enters the second cavity 13 and is exhausted.
To sum up, implement the utility model discloses following beneficial effect has:
1. the utility model provides a pneumatic nail rifle of C type through the setting of air guide valve, piston shaft, switch thimble and switch guide pin bushing for the nail rifle is in the use, and the effort of pulling the trigger has reduced 50% compared in the effort of traditional nail rifle, and the stroke of switch thimble is reduced for 2mm by traditional at least 3mm, and reaction rate is fast, and the reaction is sensitive, alleviates long-term use's fatigue, labour saving and time saving.
2. The utility model provides a pneumatic nail rifle of C type, during the dismantlement, only need be in one side of mounting demolish can, convenient and fast, the later maintenance of being convenient for.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (10)
1. A C-shaped pneumatic nail gun is characterized by comprising a shell, an air guide valve arranged in the shell, a piston shaft arranged in the air guide valve, a fixing piece connected with the shell, a switch thimble connected with the piston shaft, a switch guide sleeve sleeved on the switch thimble, a trigger used for driving the switch thimble to move and a firing pin assembly connected with the shell;
the air guide valve comprises an air guide valve body, an air guide hole formed in the air guide valve body and an air guide sealing ring sleeved on the air guide valve body, and the air guide hole and the air guide sealing ring are arranged at intervals;
the piston shaft moves back and forth in the air guide valve and comprises a piston shaft body, a piston shaft air hole formed in the piston shaft body and a cavity located in the piston shaft body, and the piston shaft air hole is communicated with the cavity.
2. The C-shaped pneumatic nail gun of claim 1, wherein the housing comprises a housing body, a first cavity arranged in the housing body, and a second cavity arranged in the housing body, the first cavity is communicated with an external air source, and both ends of the air guide valve body are provided with air guide sealing rings;
at least one air guide hole is communicated with the first cavity.
3. The C-type pneumatic nailer of claim 1, wherein the ram shaft body has a maximum outer diameter equal to an inner diameter of the air bleed valve;
a groove and a piston shaft sealing ring are arranged on the outer wall of the piston shaft body, and the groove and the piston shaft sealing ring are arranged at intervals;
the groove and the inner wall of the air guide valve body form a third cavity, and the position of the third cavity is matched with the position of the air guide hole.
4. The C-type pneumatic nailer of claim 3, wherein the cavities include a fourth cavity and a fifth cavity;
the fourth cavity is a closed cavity formed by enclosing the piston shaft and the switch thimble, the fifth cavity is a closed cavity formed by enclosing the piston shaft and the fixing piece, and the fourth cavity and the fifth cavity are respectively communicated with the third cavity through piston shaft air holes;
the volume of the fourth cavity is larger than that of the fifth cavity.
5. The C-shaped pneumatic nailer of claim 4, wherein compression springs are also disposed within the cavity, the compression springs including a first compression spring within the fourth cavity and a second compression spring within the fifth cavity.
6. The C-type pneumatic nailer of claim 1, wherein the switch pin includes a pin body, a first sealing element disposed on the pin body, and a second sealing portion disposed on the pin body, wherein the pin body is partially exposed from the housing.
7. The C-shaped pneumatic nail gun of claim 6, wherein the switch guide sleeve is sleeved at one end of the thimble body;
the first sealing piece or the second sealing piece is abutted against the switch guide sleeve.
8. The C-type pneumatic nailer of claim 1, wherein the switch guide is sealingly connected to one end of the air vent valve with a gap between the switch guide and the piston shaft;
and the switch guide sleeve, the inner wall of the air guide valve and the end part of the piston shaft mutually enclose to form a closed sixth cavity.
9. The C-shaped pneumatic nail gun of claim 1, wherein the housing has a receiving cavity therein, and the distal end of the striker assembly is located within the receiving cavity and divides the receiving cavity into two closed cavities, a seventh cavity and an eighth cavity.
10. The C-shaped pneumatic nail gun of claim 9, wherein a first gun body air passage and a second gun body air passage are further arranged in the housing, and the first gun body air passage is communicated with the air guide hole and the seventh cavity;
the second gun body channel is communicated with the eighth cavity and the air guide hole;
a ninth cavity is enclosed between the tail end of the piston shaft and the air guide valve body;
and the eighth cavity is communicated with the ninth cavity through a second gun body channel and an air guide hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022250991.2U CN213647422U (en) | 2020-10-10 | 2020-10-10 | C-shaped pneumatic nail gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022250991.2U CN213647422U (en) | 2020-10-10 | 2020-10-10 | C-shaped pneumatic nail gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213647422U true CN213647422U (en) | 2021-07-09 |
Family
ID=76700609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022250991.2U Active CN213647422U (en) | 2020-10-10 | 2020-10-10 | C-shaped pneumatic nail gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213647422U (en) |
-
2020
- 2020-10-10 CN CN202022250991.2U patent/CN213647422U/en active Active
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