CN2470125Y - Sanitary chalk with cover - Google Patents

Abstract

The utility model discloses a sanitary chalk with a sleeve, comprising a chalk holder, a chalk sleeve and a chalk core. The chalk core is put into the chalk holder in which the chalk core can move forward and backward. The chalk holder consists of an inner tube and an outer tube, wherein the inner tube is a chalk core holder with two ends open which is moveably matched with the chalk core; the chalk core holder is sleeved with the chalk holder with two ends open and the outer tube and a cavity is configured to exist between the chalk holder and the chalk core holder. The chalk core holder is longer than the chalk holder. The sanitary chalk with a sleeve is easy to use. When to use, press the cap, then a part of the chalk will come out, keeping the hand clean. The chalk core of the sanitary chalk with a sleeve can be twice longer then current chalks and is not easy break; the chalk stubble is little, causing no waste; the utility model is easy to carry.

Description

The health chalk of the band pen cap

The utility model relates to a kind of chalk, especially a kind of health chalk with the pen cap.

The chalk of teacher's use at present all is directly to hold with hand, and chalk directly contacts hand, it is very dirty that full hand is stained with chalk dust, chalk powder is invaded nail, skin, not only easy dirty hand but also injured skin, especially winter, take the hand of chalk very easily to split, when cleaning, both hands are patted, and chalk dust flies upward everywhere, contaminated environment influences the healthy of teachers and students.And chalk is easy to fracture in hand, and the chalk head when having used a section is taken because of bad, usually waste.

The purpose of this utility model is to provide a kind of health chalk with the pen cap, and the health chalk of this band pen cap both hands in use can not be stained with chalk dust, and the chalk head also can continue to use.

The technical solution of the utility model is such: a kind of health chalk with the pen cap, and this chalk comprises: penholder, the pen cap, chalk core; The chalk core is put into and can be made in the penholder that moves before and after the chalk core, penholder is made up of interior pipe and outer tube, interior Guan Weiyi is movable with the chalk core and cooperates, the powder pen core tube of both ends open, the outer tube of a two open ends of powder pen core tube overcoat, there is cavity each other, the length of powder pen core tube is greater than outer tube, its head is a circular cone, perisporium has the chalk core bayonet socket of wedgelike cone, the connection of outer tube head cooperates with the cone of powder pen core tube, and both put the spring compressor of a flange sleeve shaped, spring of spring compressor overcoat by its cavity head, one of spring near spring compressor, the other end is near the boss on the powder pen core tube, and pen core tube is a hollow circular cylinder cap by skull, an opening, after tight fit is enclosed within powder pen core tube tail end, stretch out the rear end face of outer tube.

Advantage of the present utility model is: the health chalk convenience simply to use of the band pen cap, in the time of need writing, click the cap for brush, and the chalk stamen will expose one section, does not need to touch chalk, can keep the cleaning of hand.A stamen of the health chalk of this band pen cap can not be two double-lengths of the chalk that uses now, and is easily broken, the chalk head is few, can not waste, and make in carrying.

Below in conjunction with the drawings and specific embodiments the utility model is further described,

Fig. 1 is the health chalk structural representation of the utility model band pen cap;

Fig. 2 is the health chalk partial structurtes schematic diagram of the utility model band pen cap.

A kind of health chalk with the pen cap, this chalk comprises: penholder 1, the pen cap 2, chalk core 3; Chalk core 3 is put into and can be made in the penholder 1 that chalk core 3 front and back move, penholder 1 is made up of interior pipe 4 and outer tube 5, in the pipe 4 be one with chalk core 3 be the activity cooperate, the powder pen core tube 4 of both ends open, the outer tube 5 of a two open ends of powder pen core tube 4 overcoats, there is cavity each other, the length of powder pen core tube 4 is greater than outer tube 5, its head is a circular cone, perisporium has the chalk core bayonet socket 6 of wedgelike cone, the connection of outer tube 5 heads cooperates with the cone of powder pen core tube 4, and both put the spring compressor 7 of a flange sleeve shaped, spring 8 of spring compressor 7 overcoats by its cavity head, one of spring 8 near spring compressor 7, the other end is near the boss on the powder pen core tube 9, and pen core tube is a hollow circular cylinder cap by skull 10, an opening, after tight fit is enclosed within powder pen core tube 4 tail ends, stretch out the rear end face of outer tube 5.

In use, the chalk core is packed into from one of penholder.

Claims (1)

1, a kind of health chalk with the pen cap, it is characterized in that: this chalk comprises: penholder (1), the pen cap (2), chalk core (3); Chalk core (3) is put into and can be made in the penholder (1) that moves before and after the chalk core (3), penholder (1) is made up of interior pipe (4) and outer tube (5), in the pipe (4) be one with chalk core (3) be the activity cooperate, the powder pen core tube (4) of both ends open, the outer tube (5) of a two open ends of powder pen core tube (4) overcoat, there is cavity each other, the length of powder pen core tube (4) is greater than outer tube (5), its head is a circular cone, perisporium has the chalk core bayonet socket (6) of wedgelike cone, the connection of outer tube (5) head cooperates with the cone of powder pen core tube (4), both put the spring compressor (7) of a flange sleeve shaped by its cavity head, spring compressor (a 7) spring of overcoat (8), one of spring (8) near spring compressor (7), the other end is near the boss on the powder pen core tube (9), and pen core tube is a hollow circular cylinder cap by skull (10), an opening, tight fit is stretched out the rear end face of outer tube (5) after being enclosed within powder pen core tube (4) tail end.

Images