CN203843615U - Polisher - Google Patents

Abstract

The utility model discloses a polisher comprising a polisher body. One end of the polisher body is connected with an extension rod, and the other end of the extension rod is connected with a fixing rod. The diameter of the fixing rod is larger than that of the extension rod. The polisher is characterized in that a groove is formed in the extension rod, and a boss which is clamped with the groove so as to prevent the extension rod from rotating is arranged on the fixing rod. A plurality of threaded holes are formed in the extension rod, and bolts are disposed in the threaded holes. The height of the polisher can be adjusted freely and more conveniently during construction, and the polisher is convenient to use and high in safety.

Description

A kind of sander

Technical field

The utility model relates to a kind of construction processing equipment, is specifically related to a kind of sander.

Background technology

At present, building industry high speed development, high-rise, high-rise building gets more and more, Concrete Structures of Tall Building apparent mass need to improve its apparent mass by the polishing in later stage, still, and in the xoncrete structure bruting process of exterior wall and ceiling, common sander height-limited, cannot meet the concrete polishing of high level, meanwhile, to workmen's security presence hidden danger; And, in existing sander, have and adopt the mode Lengthened polisher that adds expansion link, fixing but the position of expansion link is difficult for, and quality is heavier, uses inconvenience, and cost is high; In addition, the grinding head in existing sander is to polish with half of emery wheel, and polishing material out easily splashes, and very easily injures operating personnel.

In order to solve above-mentioned deficiency of the prior art, the utility model provides a kind of new solution.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of sander is provided, and this sander can freely be adjusted more easily the height of sander in the time of construction, easy to use, safe.

To achieve the above object of the invention, the technical scheme that the utility model adopts is: a kind of sander is provided, comprises sander body, one end of described sander body is connected with expansion link, and the other end of described expansion link is connected with fixed bar; The diameter of described fixed bar is greater than the diameter of expansion link; It is characterized in that: described expansion link is provided with groove, fixed bar is provided with groove and fastens the boss that prevents that expansion link from rotating; On described expansion link, be also provided with several screwed holes, on screwed hole, configure bolt.

The protective cover that the material that is also provided with on described sander body to prevent to polish splashes.

The material of described expansion link, fixed bar is aluminium alloy.

Handle and control valve are set on described fixed bar, jettron is set on handle, jettron is connected with tracheae by control valve, and tracheae is connected with sander body by air motor.

In sum, the utlity model has following beneficial effect:

1) the utility model is by the boss and the groove that match are set on fixed bar and expansion link, to prevent expansion link left-right rotation.

2) the utility model, by several screwed holes are set on expansion link, in the time expansion link need to being adjusted to suitable position, screws in bolt and is fixed, to adjust at any time the height of sander.

3) the utility model by arranging protective cover on grinding head, and the material that prevents from polishing splashes, protection operating personnel, and security is higher.

4) material of fixed bar and expansion link is set is aluminium alloy to the utility model, not only light, be difficult for getting rusty, and more firm, cost also reduces greatly.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model sander.

Fig. 2 is the structural representation of the utility model fixed bar.

Fig. 3 is cross-sectional view of the present utility model.

Wherein, 1, protective cover; 2, sander body; 3, air motor; 4, expansion link; 5, screwed hole; 6, bolt; 7, fixed bar; 8, tracheae; 9, emery wheel; 10, control valve; 11, handle; 12, jettron; 13, boss; 14, groove.

Detailed description of the invention

Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail:

As shown in Figure 1 to Figure 3, this sander comprises sander body 2, and one end of sander body 2 is connected with expansion link 4, and the other end of expansion link 4 is connected with fixed bar 7; The diameter of fixed bar 7 is greater than the diameter of expansion link 4; Expansion link 4 is provided with groove 14, and fixed bar 7 is provided with the boss 13 fastening with groove 14, to prevent expansion link 4 left-right rotation; On expansion link 4, be also provided with several screwed holes 5, on one of them screwed hole 5, configure bolt 6, in the time expansion link 4 need to being adjusted to suitable height, only need on the screwed hole at corresponding height place 5, screw in bolt 6 can be by fixing this expansion link 4; In addition, be also provided with protective cover 1 on the grinding head of sander body 2, the material that prevents from polishing splashes and injures operating personnel; Fixed bar 7 and expansion link 4 all adopt aluminium alloy to make, light, and non-corrosive is firmer, and greatly reduces cost.

Handle 11 and control valve 10 are set on fixed bar 7, jettron 12 is set on handle 11, jettron 12 is connected with tracheae 8 by control valve 10, and tracheae 8 is connected with sander body 2 by air motor 3; Tracheae 8 connects source of the gas, when use, opens jettron 12, and control valve 10 is transferred to air motor 3 by gas by tracheae, and air motor 3 drives emery wheel 9 to rotate, thereby polishes.

The utility model is not limited to above-mentioned example, and in claims limited range of the present utility model, the various distortion that those skilled in the art can make without creative work or amendment are all subject to the protection of this patent.

Claims (3)

1. a sander, comprises sander body, and one end of described sander body is connected with expansion link, and the other end of described expansion link is connected with fixed bar; The diameter of described fixed bar is greater than the diameter of expansion link; It is characterized in that: described expansion link is provided with groove, fixed bar is provided with groove and fastens the boss that prevents that expansion link from rotating; On described expansion link, be also provided with several screwed holes, on screwed hole, configure bolt;

Handle and control valve are set on described fixed bar, jettron is set on handle, jettron is connected with tracheae by control valve, and tracheae is connected with sander body by air motor.

2. sander according to claim 1, is characterized in that: the protective cover that the material that is also provided with on described sander body to prevent to polish splashes.

3. sander according to claim 1, is characterized in that: the material of described expansion link, fixed bar is aluminium alloy.