CN217413900U - Cylinder fixing structure of nailing gun - Google Patents

Abstract

The utility model provides a nailing gun cylinder fixed knot constructs belongs to mechanical technical field. The problem that the interchangeability of parts is low under the existing structure is solved. This nailing gun cylinder fixed knot constructs, include the booster piston for the nailing gun pressure boost for the casing that holds the booster piston, be located the cylinder of casing and be located the terminal back shroud of cylinder, the cylinder circumference is equipped with a plurality of connecting portion, every all seted up the through-hole on the connecting portion, every all be equipped with in the through-hole a plurality of and enable casing and back shroud and the cylinder connecting piece that closely cooperates. Through the form of taking the through-hole for need not to worry the part size when changing the maintenance, promote interchangeability.

Description

Cylinder fixing structure of nailing gun

Technical Field

The utility model belongs to the technical field of machinery, a nailing gun cylinder fixed knot constructs is related to.

Background

Pneumatic nailing gun comprises body of a gun and nail box part, the body of a gun part includes by the stack shell, the cylinder, trigger subassembly, firing pin subassembly, muzzle and bumper subassembly etc. form pressure differential after compressing gas through the cylinder, make the firing pin be reciprocating motion in the cylinder through trigger switch, pneumatic nailing gun relies on the atmospheric pressure in the power cylinder body to promote power piston usually, and then beat the steel nail, consequently atmospheric pressure value and gas tightness in the power cylinder body, the dynamics of beating the steel nail and the failure rate of pneumatic nailing gun have been decided. Traditional nailing gun adopts the air pump energy supply, promotes the piston with firing pin lug connection through the air pump, thereby will supply piston reciprocating motion's power cylinder body to place to be located between two shells and prevent gas leakage, nevertheless can't solve the problem of control air pressure value.

In order to solve the problem of how to control the air pressure value in the power cylinder, the Chinese patent application No.: 202011580716.5 discloses a pneumatic nailing gun, it mainly solves the problem that the nailing power that current pneumatic nailing gun leads to is difficult to adjust in order to make power piston unblock more reliable and stable, mainly through the back that the pressure boost piston pressure boost finishes, under the locking that the motor can remove power piston is more reliable and stable in order to guarantee power piston, controls the pressure boost stroke through the inside motor speed control module of nailing gun to reach the effect of control nailing dynamics.

Above two kinds of schemes, the problem of the operation of having solved pneumatic nailing gun is stable and control nailing gun nailing dynamics, but because pneumatic nailing gun needs a sealed environment to guarantee the stability of inside peak value atmospheric pressure, consequently, except that nailing gun locking operation is stable and can control, should also consider because the problem of cylinder wearing and tearing back change.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided a nailing gun cylinder fixed knot and constructed, the utility model aims to solve the technical problem that: the interchangeability of the cylinder of the nailing gun is improved on the premise of ensuring the air tightness.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a nailing gun cylinder fixed knot constructs, includes the booster piston for the nailing gun pressure boost for hold the casing of booster piston, be located the cylinder of casing and be located the terminal back shroud of cylinder, its characterized in that, the cylinder circumference is equipped with a plurality of connecting portion, all sets up the through-hole that runs through on every connecting portion, all is equipped with in every through-hole that a plurality of enables casing and back shroud and cylinder closely complex connecting piece.

In the nailing gun cylinder fixing structure, the pressurizing piston is placed in the shell, so that the pressurizing piston cannot be polluted by the outside when in work, the work of the pressurizing piston is influenced, and the air tightness is improved; set up a plurality of connecting portion in cylinder outlying circumference, after the installation, can guarantee through more fixed between connecting portion and the connecting piece that the gas tightness can not reduce, thereby the pressure boost piston that leads to loses efficacy, and because connecting portion are peripheral at the cylinder, thereby make the piston need not customize again according to inside cavity shape, can quick replacement after one of them of pressure boost piston or cylinder damages, maintenance and manufacturing cost have been reduced, because the casing passes the mode of through-hole with the back shroud through the connecting piece and links to each other with it, when changing, need not to notice whether the length of connecting piece is correct, fault-tolerant interchangeability rate has been promoted, make the user more convenient when later stage maintenance and change, the life of product and user experience have been promoted.

In the nailing gun cylinder fixing structure, the connecting piece comprises a first screw positioned on one side of the shell and a second screw positioned on one side of the rear cover plate, and each first screw and each second screw penetrate through the through hole and are in threaded connection with the inner wall of the through hole. Due to the fact that the two screws are in threaded connection with the inner wall of the through hole, after the nailing gun is used for a long time, only one damaged side needs to be replaced, and replacement cost is reduced.

In foretell nailing gun cylinder fixed knot constructs, the back shroud includes sealing member and fixed plate, and the second screw supports all the time and leans on the fixed plate to pass the sealing member and link to each other with connecting portion. Because the rear cover plate adopts the structure of the sealing element and the fixing plate, and one end of the air cylinder ensures that the air tightness of the air cylinder is not reduced due to structural defects because of the existence of the sealing element.

In the nailing gun cylinder fixing structure, the axes of the connecting pieces are coincided with the axes of the through holes and correspond to each other one by one. The damage of the inner wall of the through hole and the screw, which is caused by the non-correspondence of the connecting piece and the axis of the through hole, can not affect the air tightness in the later maintenance and installation.

In the nailing gun cylinder fixing structure, at least four connecting parts correspond to the connecting parts. Four or more connecting parts and connecting pieces are adopted, so that air leakage at the connecting part of the air cylinder and the shell or the rear cover plate due to design defects can be avoided, and the air tightness is not influenced.

In the nailing gun cylinder fixing structure, the connecting piece is a bolt which is positioned on the shell and penetrates through the through hole and a nut which is positioned on the rear cover plate and is matched with the bolt. The long bolt penetrates through the through hole for connection, so that the air tightness is guaranteed, the use cost is reduced, and the use is more convenient for a user to maintain or replace at the later stage.

In the nailing gun cylinder fixing structure, the axes of the bolt and the nut correspond to the through holes one by one. Thereby can not take place between bolt and the through-hole because the damaged problem of installation that leads to of non-correspondence, the gas leakage that leads to because the installation has been avoided of very big degree.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model discloses a set up the through-hole in the cylinder outside to under the prerequisite of guaranteeing the gas tightness, more limited assurance user can need not to consider part size problem when later stage is maintained, has promoted the interchangeability of nailing gun and user's use and has experienced.

2. The utility model discloses the accessible sets up the sealing member at the end to make under high pressure environment, can not produce because the gas leakage that fixed plate and cylinder body direct contact lead to, promoted product stability.

Drawings

Fig. 1 is a perspective exploded view of the present invention;

fig. 2 is a left side schematic view of the present invention;

FIG. 3 is a schematic cross-sectional view taken at A-A in FIG. 2;

FIG. 4 is an enlarged schematic view of the second embodiment of FIG. 3B-B;

in the figure, 1, a booster piston; 2. a housing; 3. a cylinder; 3a, a connecting part; 3b, through holes; 4. a rear cover plate; 4a, a sealing member; 4b, a fixing piece; 5. a connecting member; 5a, a first screw; 5b, a second screw; 5c, bolts; 5d, a nut.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1, fig. 2 and fig. 3, a nailing gun cylinder fixing structure comprises a pressurizing piston 1 for pressurizing a nailing gun, a housing 2 for accommodating the pressurizing piston 1, a cylinder 3 located in the housing 2 and a rear cover plate 4 located at the tail end of the cylinder 3, wherein the rear cover plate 4 comprises a sealing element 4a and a fixing plate 4b, the cylinder 3 is circumferentially provided with a plurality of connecting parts 3a, each connecting part 3a is provided with a through hole 3b, each through hole 3b is internally provided with a plurality of second screws 5b and second screws 5b which enable the housing 2 and are tightly matched with the cylinder 3 and the fixing plate 4b and the cylinder 3, and the connecting parts 3a, the second screws 5b and the second screws 5b are at least four and are in one-to-one correspondence with each other. Because the working part of the booster piston 1 is designed into a three-section structure of the shell 2, the cylinder 3 and the rear cover plate 4, the three parts are connected through screws, and the sealing piece 4a is additionally arranged on the rear cover plate 4, the booster piston can be timely replaced when damaged on the premise of keeping high pressure stability, and the replacement condition and the cost are lower, so that the booster piston 1 has good interchangeability and adaptability, and the working stability of the booster piston 1 can be ensured only by ensuring the same diameter of the screws. The second screw 5b penetrates through the sealing element 4a to be in threaded connection with the inner wall of the through hole, so that the head of the screw can apply inward pressure on the fixing plate 4b, the head of the screw can always abut against the end face of one side of the cylinder 3 while ensuring full contact with the sealing element 4a, the sealing of the tail end of the cylinder 3 is completed by means of a rubber ring on the sealing element 4a, and the axis is overlapped, so that the sealing element 4a can be well attached to the end face of the cylinder 3, and failure caused by air leakage is avoided. And in order to guarantee that the supercharging piston 1 can not generate abrasion on the inner wall of the piston and the cylinder 3 caused by the fact that the axis of the supercharging piston is different from the axis of the cylinder 3, the axis of the second screw 5b is coincided with the axis of the through hole, the through hole is formed in the connecting part 3a, the connecting part 3a is uniformly distributed in the circumferential direction of the cylinder 3, and the axis of the piston and the axis of the cylinder 3 are coincided by means of the coincidence of the screw and the axis of the through hole, so that the phenomenon of large abrasion is avoided.

Example two

Specifically, as shown in fig. 4, as an alternative, the basic structure is the same as that of the first embodiment, except that the connecting member 5 is a bolt 5c located on the housing 2 and passing through the through hole 3b, and a nut 5d located on the back cover plate 4 and engaged with the bolt 5 c. And because the axis of 5c and nut 5d of bolt all corresponds with through-hole 3b one-to-one, thus make have better location relation between cylinder 3 and casing 2 and the back shroud 4, and guarantee that pressure boost piston 1 can be in a plane reciprocating motion all the time, borrow this to reduce the wearing and tearing between piston and the 3 inner walls of cylinder, has lengthened the life of cylinder 3, and because adopt 5c of bolt, the number of part has been reduced, when having simplified the product structure, the wearing and tearing that have reduced because piston reciprocating motion leads to.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the bed 1, booster piston, are used more herein; 2. a housing; 3. a cylinder; 3a, a connecting part; 3b, through holes; 4. a rear cover plate; 4a, a sealing member; 4b, a fixing piece; 5. a connecting member; 5a, a first screw; 5b, a second screw; 5c, bolts; 5d, nuts, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (7)

1. The utility model provides a nailing gun cylinder fixed knot constructs, includes for the booster piston (1) of nailing gun pressure boost for hold casing (2) of booster piston (1), be located cylinder (3) of casing (2) and be located terminal back shroud (4) of cylinder (3), its characterized in that, be equipped with a plurality of connecting portion (3a) on cylinder (3) circumference, every through-hole (3b) have all been seted up on connecting portion (3a), every all be equipped with in through-hole (3b) a plurality of and enable casing (2) and back shroud (4) and cylinder (3) closely complex connecting piece (5).

2. A nailing machine cylinder fixing structure according to claim 1, wherein the attachment member (5) comprises a first screw (5a) at a side of the housing (2) and a second screw (5b) at a side of the rear cover (4), each of the first screw (5a) and the second screw (5b) passing through the through hole (3b) and being screwed with an inner wall of the through hole (3 b).

3. A nailing gun cylinder fixing structure according to claim 2, wherein the rear cover plate (4) includes a sealing member (4a) and a fixing plate (4b), and the second screw (5b) is always abutted against the fixing plate (4b) and connected to the connecting portion (3a) through the sealing member (4 a).

4. A nailing gun cylinder fixing structure according to claim 1, wherein the axis of each of the connectors (5) coincides with the axis of the through-hole (3b) and corresponds one to one.

5. A nailing gun cylinder fixing structure according to claim 1, wherein the connecting parts (3a) and the connecting members (5) are at least four and correspond to each other.

6. A nailing gun cylinder fixing structure according to claim 1, wherein the connecting member (5) is a bolt (5c) provided on the housing (2) and penetrating the through hole (3b) and a nut (5d) provided on the rear cover plate (4) and engaging with the bolt (5 c).

7. A nailing gun cylinder fixing structure according to claim 1 or 6, wherein each of the axis of the bolt (5c) and the nut (5d) corresponds one-to-one with the through hole (3 b).

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