Lithium electric nail gun convenient to inflate

Abstract

The utility model discloses a lithium electric nail gun convenient to inflate, which comprises a gun body, the gun body comprises a machine shell, an air cylinder is contained in the machine shell, and the lithium electric nail gun is characterized in that a convex inflating head is constructed at the end part of the air cylinder at the rear end of the machine shell and extends out of the rear end of the machine shell; and a sealing sleeve for preventing gas in the cylinder from escaping from the inflating head is sleeved on the inflating head extending out of the rear end of the shell. According to the lithium electric nail gun, the air cylinder can be inflated conveniently, the size of the rear end of the machine shell cannot be increased, and therefore the rear end of the machine shell cannot be large and heavy.

Description

Technical Field

[0001] The utility model relates to the field of electric nail guns, in particular to a lithium - battery nail gun with convenient inflation. Background Art

[0002] For electric nail guns, especially lithium - battery nail guns that use lithium batteries as the power source, a cylinder is also provided inside. The main function of this cylinder is to push the firing pin out by the linear output movement of its piston rod. Of course, it should be noted that the cylinder in this lithium - battery nail gun is different from the cylinder in a pneumatic nail gun. When working, the cylinder in the lithium - battery nail gun does not need to be connected to the air source all the time, and only needs to be inflated when the gas in the cylinder is depleted, generally once or twice a year.

[0003] Currently, for the inflation of the cylinder in a lithium - battery nail gun, the inflation port is generally arranged inside the fuselage. When inflating, the fuselage shell needs to be disassembled to achieve inflation of the cylinder. Although the number of disassembly times in a year is not much, the operation is still relatively cumbersome.

[0004] Therefore, a structure with the inflation port arranged at the end of the fuselage has emerged on the market. Although the entire shell does not need to be disassembled during inflation, since the end of the shell is separately constructed into a cover body, this cover body has a certain axial depth and radial width due to its own structure, so the overall size is relatively large. It needs to be connected to the shell through multiple evenly distributed screws. In actual inflation, it is necessary to disassemble and assemble these screws one by one, and the operation is still not convenient enough. Moreover, the large - sized cover body makes the end of the shell too large and bulky. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problem that the prior art requires multiple disassembly of screws during use, resulting in inconvenient operation, and being too large and bulky. A new - structure lithium - battery nail gun with convenient inflation is proposed.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: A lithium - battery nail gun with convenient inflation is provided, including a gun body. The gun body includes a shell, and a cylinder is installed inside the shell. An outward - protruding inflation head is constructed at the end of the cylinder at the rear end position of the shell. This inflation head extends out of the rear end of the shell, and a seal is sleeved on the inflation head that extends out of the rear end of the shell to prevent the gas in the cylinder from escaping from the inflation head.

[0007] Preferably, an installation hole is opened at the rear end of the shell. The shell constructs an inward - concave annular arc wall at the opening of the installation hole. The end of the cylinder constructs an end face part and an end side - wall part. The end side - wall part has an outward - protruding annular arc wall that matches the inward - concave annular arc wall. The end side - wall part is assembled at the rear end of the shell by setting the outward - protruding annular arc wall that matches the inward - concave annular arc wall, and the inflation head protrudes in the middle of the end face part.

[0008] Preferably, the mounting hole has an inner circumferential side wall with a certain axial length, and the end face portion has a certain axial length and an outer circumferential side wall. The end face portion is mounted in the mounting hole through the cooperation of the outer circumferential side wall and the inner circumferential side wall.

[0009] Preferably, the opening of the mounting hole is connected to the rear end face of the casing through an annular inclined wall with a gradually increasing diameter.

[0010] Preferably, the end face portion is further provided with a thin boss. The radial dimension of the thin boss is smaller than that of the end face portion, and the inflation head is centrally convexly provided on the thin boss.

[0011] Preferably, the inflation head has an inflation hole communicating with the inner cavity of the cylinder, and a first annular groove is formed on the outer wall of the inflation head, and a sealing ring is sleeved in the first annular groove.

[0012] Preferably, the seal cover includes a sleeve ring portion and a head portion integrally connected to one end of the sleeve ring portion. A second annular clamping groove is formed on the inner wall of the sleeve ring portion to clamp the exposed portion of the sealing ring.

[0013] Preferably, a conical groove is formed on the inner bottom wall of the head portion, and the inner diameter of the conical groove gradually increases from the groove bottom to the opening; a pry seam for prying open the seal cover is provided on the outer wall at the other end of the sleeve ring portion.

[0014] Preferably, the pry seam is a right-angled pry seam, which has a first pry wall perpendicular to the axial direction of the seal cover and a second pry wall parallel to the axial direction of the seal cover.

[0015] Preferably, two pry seams are provided, and the two pry seams are symmetrically arranged on the outer wall of the sleeve ring portion.

[0016] Compared with the prior art, the advantages and positive effects of the present utility model are that there is no need to modify the casing, and it is not necessary to construct the rear end of the casing into a cover structure with a certain axial depth and radial width. Therefore, the rear end of the casing will not be too large and bulky due to the setting of the cover structure.

[0017] An inflation head is constructed at the end of the cylinder of the present utility model at the rear end position of the casing, and the inflation head protrudes from the rear end of the casing. In this way, when inflating, there is no need to open the casing, and the cylinder can be directly inflated through the inflation head protruding from the rear end of the casing. After inflation, by sleeving the seal cover on the inflation head, the gas in the cylinder can be prevented from escaping from the inflation head.

[0018] For the seal cover, compared with the cover body of the prior art, since the inflation head realizes inflation by protruding from the rear end of the casing, the structure of the inflation head itself can be made relatively small. Therefore, the size of the seal cover can also be made much smaller, as long as it can block the inflation head.

[0019] The envelope of the present utility model is sleeved on the inflation head. When it needs to be opened, it can be easily pried off from the inflation head by prying, without the need to remove multiple screws as in the prior art, and the operation is much more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a partial three-dimensional structural schematic diagram of a lithium-ion nail gun in an embodiment;

[0021] Figure 2 is a partial three-dimensional structural schematic diagram of the housing of a lithium-ion nail gun with a part removed in an embodiment;

[0022] Figure 3 is Figure 2 the enlarged structural schematic diagram at A in

[0023] Figure 4 is a partial three-dimensional structural schematic diagram of the housing of a lithium-ion nail gun with a part removed and the envelope removed in an embodiment;

[0024] Figure 5 is a three-dimensional structural schematic diagram of the envelope of a lithium-ion nail gun in an embodiment;

[0025] Figure 6 is a sectional structural schematic diagram of the envelope of a lithium-ion nail gun in an embodiment.

[0026] LEGEND DESCRIPTION:

[0027] Gun body 1, cylinder 2, housing 3, inflation head 4, envelope 5, mounting hole 6, inner concave annular arc wall 7, end face part 8, end side wall part 9, outer convex annular arc wall 10, thin convex platform 11, annular inclined wall 12, inflation hole 13, first annular groove 14, sealing ring 15, sleeve ring part 16, end head part 17, second annular card slot 18, conical groove 19, prying seam 20, first prying wall 21, second prying wall 22. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to more clearly understand the above objects, features and advantages of the present utility model, the following further describes the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0029] In the following description, many specific details are set forth to fully understand the present utility model. However, the present utility model may be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0030] Embodiment 1

[0031] AsFigures 1 to 6 As shown in the figure, the present utility model provides a lithium - ion nail gun with convenient inflation, including a gun body 1. The gun body 1 is provided with a housing 3 for accommodating a cylinder 2. After accommodation, the length direction of the cylinder 2 is consistent with the length direction of the housing 3, and one end of the cylinder 2 exactly corresponds to the rear end of the housing 3.

[0032] To avoid constructing the rear end of the housing 3 into a cover structure as in the prior art, in this application, an outward - protruding inflation head 4 is constructed at the end of the cylinder 2 at the rear - end position of the housing 3. The inflation head 4 protrudes out of the rear end of the housing 3, and a sleeve 5 for preventing the gas in the cylinder 2 from escaping from the inflation head 4 is sleeved on the inflation head 4 that protrudes out of the rear end of the housing 3. The sleeve 5 can effectively block the inflation head 4 to prevent gas escape when not in use, and can be pried open when needed, thus eliminating the need for screw disassembly and providing convenient operation. It should be noted that the end referred to in the end at the rear - end position of the housing 3 is the end of the cylinder 2, which is also equivalent to the intake end of the cylinder 2.

[0033] Specifically, the specific structures of the housing 3, the cylinder 2, the inflation head 4, and the sleeve 5 and their connection relationships with each other will be elaborated in detail below.

[0034] See Figure 2 、 Figure 3 、 Figure 4 , in this embodiment, an installation hole 6 is opened at the rear end of the housing 3. The housing 3 constructs an inward - concave annular arc wall 7 at the opening of the installation hole 6. The end of the cylinder 2 constructs an end face portion 8 and an end side wall portion 9. The end side wall portion 9 has an outward - protruding annular arc wall 10 that matches the inward - concave annular arc wall 7. The end side wall portion 9 is assembled to the rear end of the housing 3 by providing the outward - protruding annular arc wall 10 that matches the inward - concave annular arc wall 7. At this time, the inflation head 4 protrudes centrally from the end face portion 8 and extends out of the rear end of the housing 3.

[0035] Meanwhile, the installation hole 6 has an inner circumferential side wall, and the end face portion 8 has an outer circumferential side wall. The end face portion 8 is installed in the installation hole 6 through the cooperation of the outer circumferential side wall and the inner circumferential side wall.

[0036] It can be seen that because the shapes and sizes of the inward - concave annular arc wall 7 and the outward - protruding annular arc wall 10 provided at the rear end of the housing 3 match, and the shape and size of the inner circumferential side wall of the installation hole 6 at the rear end of the housing 3 also match the shape and size of the outer circumferential side wall, the end of the cylinder 2 provided with the inflation head 4 can be stably assembled inside the rear end of the housing 3 through the outward - protruding annular arc wall 10 and the outer circumferential side wall.

[0037] In this embodiment, for the convenience of arranging the inflating head 4 and increasing its strength, a thin boss 11 is further arranged on the end face portion 8. The radial dimension of the thin boss 11 is smaller than that of the end face portion 8, and the inflating head 4 protrudes centrally from the thin boss 11. The shape of the thin boss 11 can be circular or Figure 2 , Figure 3 , Figure 4 the shapes shown, and its shape is not limited.

[0038] In this embodiment, the opening of the mounting hole 6 is connected to the rear end face of the housing 3 through an annular inclined wall 12 with a gradually increasing diameter. After the annular inclined wall 12 is arranged, the end face portion 8 and the thin boss 11 exposed at the rear end of the housing 3 can be sunken into the area surrounded by the annular inclined wall 12, so that they will not protrude from the rear end face of the housing 3. Only the inflating head 4 protrudes from the rear end face of the housing 3. By setting like this, the length of the inflating head 4 protruding from the rear end face of the housing 3 can be effectively reduced, so that the length of the nail gun will not increase excessively.

[0039] To prevent the gas in the cylinder 2 from escaping from the inflating head 4, the inflating head 4 is provided with an inflation hole 13 communicating with the inner cavity of the cylinder 2, and a first annular groove 14 is formed on the outer wall of the inflating head 4, and a sealing ring 15 is sleeved in the first annular groove 14. The sleeve 5 matched with the inflating head 4 includes a sleeve ring portion 16 and a head portion 17 integrally connected to one end of the sleeve ring portion 16. A second annular clamping groove 18 is formed on the inner wall of the sleeve ring portion 16 to clamp the exposed part of the sealing ring 15. When sealing, the opening of the sleeve ring portion 16 is aligned with the top of the inflating head 4, and then the sleeve 5 is pressed downward, so that the exposed part of the sealing ring 15 is clamped into the second annular clamping groove 18, and at this time the installation of the sleeve 5 is completed. Due to the presence of the sealing ring 15, on the one hand, the sleeve 5 can be tightly sleeved on the inflating head 4, and on the other hand, it can play a sealing role to effectively prevent gas from escaping.

[0040] Regarding the specific structure of the sleeve 5, in this embodiment, a conical groove 19 is formed on the inner bottom wall of the head portion 17. The inner diameter of the conical groove 19 gradually increases from the groove bottom to the opening. By arranging the conical groove 19, on the one hand, it can play a role in avoiding other components (not shown) in the inflating head 4, and on the other hand, after the conical groove 19 is arranged, compared with a circular groove of the gas, the overall strength of the head portion 17 is better.

[0041] It should be noted that, for the convenience of opening the envelope 5, in this embodiment, at the other end of the collar portion 16, a pry seam 20 for prying open the envelope is provided on the outer wall. Specifically, the pry seam 20 is a right-angled pry seam, having a first pry wall 21 perpendicular to the axial direction of the envelope 5 and a second pry wall 22 parallel to the axial direction of the envelope 5. And for the convenience of prying at the periphery of the envelope 5, two pry seams 20 are provided, and the two pry seams 20 are symmetrically arranged on the outer wall of the collar portion 16.

[0042] Thus, when it is necessary to open the envelope 5, a tool is inserted into the pry seam 20, and after applying force, the envelope 5 can be pried open, and the whole operation process is very convenient.

[0043] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A lithium battery nail gun with convenient inflatability, comprising a gun body, the gun body comprising a casing, the casing containing a cylinder, characterized in that: The end of the cylinder at the rear end of the casing is formed with an outwardly convex inflation head, which extends out of the rear end of the casing. The inflation head extending out of the rear end of the casing is covered with a sealing sleeve to prevent the gas in the cylinder from escaping from the inflation head.

2. The lithium-powered nail gun with convenient charging according to claim 1, characterized in that: A mounting hole is provided at the rear end of the casing, and an inner concave annular arc wall is constructed inwardly at the opening of the mounting hole. An end face portion and an end side wall portion are constructed at the end of the cylinder. The end side wall portion has an outer convex annular arc wall matching the inner concave annular arc wall. The end side wall portion is mounted on the rear end of the casing by arranging an outer convex annular arc wall matching the inner concave annular arc wall, and the inflation head is convexly arranged in the center of the end face portion.

3. The lithium-powered nail gun with convenient charging according to claim 2, characterized in that: The mounting hole has an inner circumferential side wall, and the end face has an outer circumferential side wall, and the end face is installed in the mounting hole by cooperating with the outer circumferential side wall and the inner circumferential side wall.

4. The conveniently inflatable lithium-powered nail gun according to claim 3, characterized in that: The opening of the mounting hole and the rear end face of the housing are connected by an annular inclined wall with a gradually increasing diameter.

5. The conveniently inflatable lithium-powered nail gun according to claim 4, characterized in that: The end face is also provided with a thin boss, the radial dimension of the thin boss is smaller than the radial dimension of the end face, and the inflatable head is arranged in the center on the thin boss.

6. A conveniently inflatable lithium-powered nail gun according to any one of claims 1 to 5, characterized in that: The inflatable head has an inflatable hole communicating with the inner cavity of the cylinder, and a first annular groove is opened on the outer wall, and the first annular groove is provided with a sealing ring in the clamp.

7. A lithium battery nail gun that is conveniently inflatable according to claim 6, characterized in that: The envelope includes a collar portion and an end portion integrally connected to one end of the collar portion, and a second annular shaped slot is provided on the inner wall of the collar portion to snap into the exposed portion of the sealing ring.

8. A kind of inflatable lithium battery nail gun according to claim 7, characterized in that: A conical groove is provided on the inner bottom wall of the end part, and the inner diameter of the conical groove gradually increases from the bottom of the groove to the opening; The other end of the collar part is provided with a prying seam for prying envelopes at the outer wall.

9. A convenient inflatable lithium battery nail gun according to claim 8, characterized in that: The prying seam is a right angle prying seam, and includes a first prying wall that is axially perpendicular to the envelope and a second prying wall that is axially parallel to the envelope.

10. A convenient inflatable lithium battery nail gun according to claim 9, characterized in that: Two prying seams are provided, and the two prying seams are arranged symmetrically on the outer wall of the collar part.

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