CN2170190Y - Crack prevention base for nail ejector - Google Patents

Abstract

The utility model discloses a crack prevention base for a nail ejector, which is mainly composed of a base, a spring, a joint sleeve and screws. The crack prevention base for a nail ejector is characterized in that the base comprises a pressing iron and a protecting cover. The base is provided with holes (11), access holes (12), a ring groove (13), a guide groove (14), a waist body (21), a positioning groove (15), the bottom surface of the pressing iron (18), etc. A fastening and disassembling component can be sheathed between the joint sleeve and the nail ejector, and under the guide of the screws (5) and the guide groove (14), the spring can be compressed and released. The crack prevention base for a nail ejector has simple structure; the pressing iron and the protecting cover are combined into integration; the parts are easy to disassemble and exchange, and the processing quality is easy to control. The crack prevention base for a nail ejector is suitable for being arranged on the nail ejector.

Description

Crack prevention base for nail ejector

The utility model discloses a kind of anticracking seat that ail shooter is used, be mainly used in when fastening parts of ail shooter or ail shooter carry out other operation and control the destruction of basal body structure and prevent that nailing, matrix avalanche fragment etc. from splashing.Be applicable to and be placed on the ail shooter.

When ail shooter when being used to shoot matrix such as concrete, rock, brick wall, the time regular meeting cause very big compression stress in the matrix subrange.If matrix itself can absorb Wan these compression stresses, its structure will be destroyed, and the just easy avalanche in surface is splashed; Simultaneously, when running into duromer when shooting, nailing just may splash.If settle an anticracking seat, the anticracking seat is pulled the trigger the after-applied huge inertia drag of matrix of giving by nail shooting pill during shooting on ail shooter, to overcome the compression stress at fastened position on the matrix, reaches the protecting group body structure and avoids occurring splash phenomena.At present; domestic and international used anticracking seat is to combine by the foundary weight that matrix is shielded with to single parts such as the protective cover of having operated protective action and link stopper, springs; its complex structure; in the process that is combined into the anticracking seat, need welding processing; therefore quality is wayward, and interchangeablity is poor.

The purpose of this utility model provides a kind of anticracking seat that ail shooter is used.

Scheme of the present utility model is: the anticracking seat is made up of pedestal (2), spring (3), fitting sleeve (4), screw (5), and wherein pedestal (2) includes foundary weight (6), protective cover (7) two part-structures.Spring (3) is contained in the pedestal (2), and is enclosed within on the fitting sleeve (4) that connects ail shooter, is pressured state under the normality, can make the foundary weight part (6) of pedestal (2) be adjacent to matrix surface (9) when continuing pressurized.Fitting sleeve (4) with respect to pedestal (2) but axial compression and retracting spring (3) and adopt fixedlying connected of disassembling between ail shooter.

Owing to adopted such scheme, make the simple in structure of anticracking seat, part easily exchanges and demolition, and system easy to control the quality, can control the destruction of basal body structure and prevent that nailing, matrix avalanche fragment etc. from splashing.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing.

When Fig. 1 is embodiment anticracking seat duty and the piston cylinder (16) of ail shooter, piston (35) and nailing (10), matrix (8) structure chart together;

Fig. 2 is the structure chart after the pedestal (2) of anticracking seat cuts open along its center;

Fig. 3 is a kind of structure chart of embodiment anticracking seat center tap cover (4);

Fig. 4 is the view before fitting sleeve shown in Figure 3 (4) does not cut open;

Fig. 5 is the vertical view of fitting sleeve shown in Figure 4 (4).

As shown in Figure 1, the anticracking seat mainly is made up of pedestal (2), spring (3), fitting sleeve (4), screw (5).Pedestal (2) is processed by a cylinder, flare (as shown in Figure 2).This pedestal (2) includes protective cover (7), foundary weight (6) two part-structures; Wherein protective cover part (7) is used to prevent that nailing (10), matrix fragment etc. from splashing, and foundary weight part (6) is used for the protecting group body structure.Pedestal (2) is gone up porose (11), access hole (12), annular groove (13), gathering sill (14), locating slot (15) etc.Hole (11), access hole (12) are positioned on the axle center of pedestal (2), and its mesopore (11) is used to place fitting sleeve (4) and spring (3); Access hole (12) has the passage as ail shooter piston cylinder (16).The diameter in hole (11) is big than hole (12), and the two step surface (17) is as the supporting surface of spring.A circular ring slot (13) that is used for weight reduction is arranged between foundary weight of anticracking seat (6) and protective cover (7) two parts.The bottom surface (18) of foundary weight (6) is as the contact-making surface of anticracking seat and matrix (8), this bottom surface (18) protrudes in the bottom surface (1) of protective cover (7), so that anti-guard housing can contact preferably with matrix face (9), made matrix need fastening position to obtain the drag that unit are is bigger after pulling the trigger at nail shooting pill simultaneously, thereby avoided the destruction of basal body structure better.Near four equally distributed grooves (15) being arranged on cylinder (20) periphery of protective cover bottom surface (1), when being used for the ail shooter operation to the location of fastening point.On the anticracking seat,, be processed with one and vertically become circular arc, horizontal conglobate protective cover waist body (21) for weight reduction.On this waist body (21), four gathering sills (14) that penetrate waist body tube wall and be uniformly distributed in waist body circumference are arranged, this gathering sill (14) is the square hole in half garden for broadside, it on the waist body axially-aligned, be used to guide the axially-movable of fitting sleeve, retrain screw (5) simultaneously and make spring (3) be compressive state under normal conditions.

Shown in Fig. 1,3,4,5, with respect to pedestal (2) but the fitting sleeve (4) of axially-movable constitute by cylinder (22), (23), (24), there is the access opening (26) and the transitional pore of the two (27) of nipple orifice (25), ail shooter piston cylinder at its (4) center.The external diameter of cylinder (23) is little than cylinder (22), and bigger than the external diameter of cylinder (24).Cylinder (24) is as the sleeve of spring (3); Two relative radially screws (28) are arranged on cylinder (23), in addition with the direction of screw (28) axis parallel on two axial planes (29) are arranged again, as shown in Figure 4.Behind the cylinder (23) of spring (3) and fitting sleeve (4), (24) load hole (11), screw (5) passes and can make spring (3) pressurized under normal conditions after gathering sill (14) screws in screw (28).If fitting sleeve (4) is along gathering sill (14) pushing spring (3), the foundary weight part (6) of pedestal (2) just can be adjacent to matrix face (9).The structure of cylinder (22) is decided with the design of part that is attached thereto on the ail shooter, with fixedlying connected of employing disassembling between ail shooter.Shown in Fig. 3,5, the cylinder (22) of fitting sleeve (4) and the nipple orifice (25) at center thereof are a kind of structure that the utility model anticracking seat is fixedlyed connected with the disassembling of ail shooter employing socket fastening.This nipple orifice (25) includes four pairs, two and takes turns totally eight ear dishes (30), (19), and the garden that is evenly distributed in hole wall (31) is on week; Have an ear dish (30) concordant in every pair of ear dish (30), (19), and each to being arranged between ear dish (30), (19), a groove (33) is used for and ail shooter socket fastening with the end face (32) of cylinder (22); The sulculus (34) that has socket to use on the ear dish (30) concordant with cylinder end face (32) is shown in Fig. 3,5.

After the anticracking seat assembled, the socket fastening is on ail shooter, aim at position to be tightened on the matrix by locating slot (15), then ail shooter is exerted pressure, fitting sleeve (4) continues compression spring (3) and makes the foundary weight part (6) of pedestal be close to matrix surface (9), and this moment, the operator can pull the trigger ail shooter.After treating end of operation, the anticracking seat is got back to original position under the effect of spring (3).

Claims (3)

1, a kind of anticracking seat of using of ail shooter comprises foundary weight, protective cover, spring, fitting sleeve etc., it is characterized in that

This anticracking seat is made up of pedestal (2), spring (3), fitting sleeve (4), screw (5), wherein pedestal (2) is made of foundary weight (6), protective cover (7) two parts, pedestal (2) is gone up porose (11), access opening (12), annular groove (13), foundary weight bottom surface (18), protective cover waist body (21), gathering sill (14), locating slot (15) etc., foundary weight bottom surface (18) protrudes in protective cover bottom surface (1)

Fitting sleeve (4) is contained in the hole (11) of pedestal (2) by the constraint between screw (5) and gathering sill (14), but axial compression and retracting spring (3), with fixedlying connected of employing disassembling between ail shooter, this fitting sleeve (4) is by screw (28), plane formations such as (29) on nipple orifice (25), access opening (26), transitional pore (27) and the cylinder (23) at cylinder (22), (23), (24) and center thereof, have screw (5) in the screw (28)

Spring (3) is contained in the pedestal hole (11), is enclosed within on the cylinder (24) of fitting sleeve (4), and under the normality pressured state.

2, anticracking seat according to claim 1 is characterized in that pedestal (2) shows trumpet type, on the protective cover waist body (21) of pedestal (2) four gathering sills (14) is arranged, and on protective cover cylinder (20) surface of pedestal (2) four locating slots (15) is arranged.

3, anticracking seat according to claim 1 is characterized in that on the cylinder (23) of fitting sleeve the screw (28) of two symmetries and the plane (29) of two symmetries being arranged,

Nipple orifice (25) is fixedlyed connected with the disassembling of ail shooter and is shown as demountable socket fastening, and nipple orifice is made of groove (33) between ear dish (30), (19), hole wall (31), ear dish and the sulculus (34) on the ear dish (30).

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