CN203502742U - Powder barrel - Google Patents

Abstract

The utility model provides a powder barrel. The powder barrel comprises a main body and a protective cover, wherein the main body is axially provided with a tubular part which is separated by a shoulder; a powder outlet is formed in the peripheral wall of the tubular part and is opened and closed by a sealing part which slides along the axial direction of the tubular part; the protective cover is mounted on the tubular part of the main body and a locking part is an annular notch which protrudes outwards from the outer periphery of the tubular part along the radial direction; a first set of teeth which are arrayed along the peripheral direction are arranged at one end of the annular notch, which is close to the lower surface of the shoulder in the axial direction; an inner arc surface is arranged on the inner wall of the protective cap along the axis direction; a groove opening is formed in one end, which is close to an opening of the protective cover, of the inner arc surface; a lug boss is arranged at the lower edge of the groove opening and extends inwards along the inner wall of the protective cover in the radial direction; a second set of teeth are arranged on the surface, which is far away from the surface of the opening, of the lug boss in the radial direction; the axial distances from teeth bottoms of the first set of the teeth to the opening are the same as the axial distances from teeth tops of the second set of the teeth to the shoulder. The powder barrel has the advantages of convenience in mounting and detaching, firmness in buckling and simple structure.

Description

Powder cylinder

Technical field

The utility model relates to a kind of powder cylinder, specifically, is that the guard block of meal outlet has been carried out to improved powder cylinder.

Background technology

Powder cylinder is for the storage container to electronic imaging device supply toner and so on developer, and it is removably mounted in electronic imaging device, and powder cylinder meal outlet is docked to the powder inlet on electronic imaging device, by the required developing apparatus of carbon powder supplying.Powder cylinder needed meal outlet to carry out encapsulation process before using, in order to prevent that seal member from being destroyed inadequately in storage or transportation, need to protect seal member.

For protection seal member; prior art is, in the end of powder cylinder main body, over cap is set; by screw thread, main body and over cap are assembled up, and then effectively protect meal outlet seal member not to be destroyed, during use, back out over cap; but due to this thread matching structure; need to do internal thread to over cap mould and process, make to make die cost and improve, and when assembling; the degree of screwing of over cap and main body is had to certain requirement, and tension and excessively pine all easily produce quality problems.

Summary of the invention

It is simple that the purpose of this utility model is to provide a kind of processing, powder cylinder easy for installation between over cap and main body.

For achieving the above object, the powder cylinder that the utility model provides comprises main body and over cap, and main body is being axially arranged with the tube being separated out by a shoulder, and meal outlet is located on the perisporium of tube, and meal outlet is opened and closed by a seal member in axial sliding along tube.Over cap is arranged on the tube of main body, sticking department be from the outer peripheral face of tube radially outwards outstanding ring lack, in the axial direction, encircle scarce one end and be provided with first group of tooth along circumferential array near on the lower surface of shoulder.Over cap inwall is provided with intrados along axis direction; intrados is provided with notch in one end of the opening near over cap, and the lower edge of notch is provided with boss, and boss extends along the inwall radial inward of over cap; in the axial direction, boss is provided with second group of tooth away from the surface of opening.Identical to shoulder distance in the axial direction with the tooth top of second group of tooth to opening distance in the axial direction at the bottom of the tooth of first group of tooth.

Compared with prior art, because the utility model has adopted first group of tooth, be connected with the mode of second group of tooth engagement, and lean on the butt of the end face of over cap opening and shoulder to compress, there is the uniform feature of coupling mechanism force, make easy for installation.

Further scheme is that the quantity of sticking department is 1-4, and sticking department is uniformly distributed along the side face in tubulated ends.The quantity of notch and boss is corresponding with the quantity of sticking department.From this scheme, when the quantity of sticking department is set to 1, can realize the purpose of this utility model, but have the deficiency of unbalance stress, better selecting is 2-4.

Further scheme is that the afterbody of first group of tooth has a limiting tooth, and the tooth depth of limiting tooth is much larger than the tooth depth of first group of tooth.Like this, convenient during assembling.

Further scheme is the circumferential wall that notch runs through over cap.When such design can make the tooth top of first group of tooth relative with the tooth top of second group of tooth, produce enough notch distortion, make assembling more firm.

Accompanying drawing explanation

Fig. 1 is the wiring layout of the utility model powder cylinder;

Fig. 2 is the sectional view of the utility model powder wound packages distribution structure;

Fig. 3 is that the utility model powder wound packages is joined Local map;

Fig. 4 is the utility model powder cylinder main structure chart;

Fig. 5 is the A-A cut-open view of Fig. 4;

Fig. 6 is the stereographic map of over cap;

Fig. 7 is over cap structural drawing;

Fig. 8 is the B-B cut-open view of Fig. 7;

Fig. 9 is the C partial enlarged drawing of Fig. 8.

Embodiment

Below in conjunction with accompanying drawing, the utility model powder cylinder is described further.

As shown in Figure 1, powder cylinder consists of main body 2 and over cap 1.

As shown in Figure 2, for the purpose of explanation the utility model is clear, Fig. 2 is the sectional view that has omitted part-structure in over cap 1 and main body 2, is provided with symmetrically pair of projections 11 on over cap 1, is correspondingly provided with sticking department 33 in main body 2.

As shown in Figure 3, main body 2 and over cap 1 by sticking department 33 and boss 11 snappings after installation in position.The perisporium of over cap 1 nearly openend is provided with the notch 12 that runs through perisporium, and boss 11 is from notch 12 times radially to projecting inward, and the upper surface of boss 11 is provided with second group of tooth 15.Sticking department 33 is arranged in main body 2, and its lower surface is provided with the first group of tooth 34 coordinating with second group of tooth 15, is also provided with a limiting tooth 35.

As shown in Figure 4; in main body 2, there is a shoulder 21; shoulder 21 upper end is vertically tube 3; the perisporium of tube 3 is provided with meal outlet 31; seal member 32; ring lacks the sticking department 33 of shape; sticking department 33 is radially outwards outstanding from the side face of tube 3; in this example; sticking department 33 is to lack along equally distributed two rings that make progress in week about tube 3; the afterbody that sticking department 33 is provided with 34, the first groups of teeth 34 of first group of tooth near the lower surface of a circumferential end is provided with a limiting tooth 35, for the limiting protecting lid 1 further screw-in to main body 2.

As shown in Figure 5, first group of tooth 34 is arranged at sticking department 33 in the end making progress in week, and limiting tooth 35 is the teeth that tooth depth is relatively high.

As shown in Figures 6 to 9, over cap 1 comprises and is located at intrados 13 that inwall its extend along axis direction, the notch 12 that runs through over cap 1 perisporium, boss 11, and second group of tooth 15, notch 12 is arranged on intrados 13 near one end of opening 14, boss 11 radially extends inwardly at over cap 1 inwall, second group of tooth 15 is located on the surface of boss 11 away from opening 14, second group of tooth 15 on boss 11 is for first group of tooth, 34 engagements with sticking department 33, at the bottom of the tooth of second group of tooth 15, to opening 14 distance in the axial direction, to shoulder 21 distance in the axial direction, be identical with the tooth top of first group of tooth 34, or the tooth top of second group of tooth 15 is to end, 21 distances are in the axial direction identical at the bottom of the tooth of opening 14 distance in the axial direction and first group of tooth 34, like this, after relative main body 2 installation in position of over cap 1, opening 14 is pressed on the end face of shoulder 21, second group of tooth 15 and first group of tooth 34 can secure engagement, and, when second group of tooth 15 abuts to limiting tooth 35, over cap 1 is subject to spacing and cannot continues to screw.

When over cap 1 is installed to main body 2; first over cap 1 is inserted in to the tube 3 of main body 2; when the end contact of opening 14 and shoulder 21; along over cap 1, circumferentially turn clockwise; by the second group of tooth 15 on boss 11 and the tooth 34 on sticking department 33, mesh; utilize limiting tooth 35 restrictions simultaneously, over cap 1 and main body 2 are fixed up.

By over cap 1 when main body 2 is dismantled, over cap is screwed off in the counterclockwise direction.

Claims (4)

1. powder cylinder, comprises

Main body, described main body is being axially arranged with the tube being separated out by a shoulder, and meal outlet is located on the perisporium of described tube, and described meal outlet is opened and closed by a seal member in axial sliding along described tube;

Over cap, is arranged on the tube of described main body;

It is characterized in that:

Sticking department, be from the outer peripheral face of described tube radially outwards outstanding ring lack, in the axial direction, the scarce one end of described ring is being provided with first group of tooth along circumferential array near on the lower surface of described shoulder;

Over cap, described over cap inwall is provided with intrados along axis direction, described intrados is provided with notch in one end of the opening near described over cap, the lower edge of described notch is provided with boss, described boss extends along the inwall radial inward of described over cap, in the axial direction, described boss is provided with second group of tooth away from the surface of described opening;

Identical to described shoulder distance in the axial direction with the tooth top of described second group of tooth to described opening distance in the axial direction at the bottom of the tooth of described first group of tooth.

2. powder cylinder according to claim 1, is characterized in that:

The quantity of described sticking department is 1-4, and described sticking department is uniformly distributed along the side face in described tubulated ends;

The quantity of described notch and described boss is corresponding with the quantity of described sticking department.

3. powder cylinder according to claim 1 and 2, is characterized in that:

The afterbody of described first group of tooth has a limiting tooth, and the tooth depth of described limiting tooth is much larger than the tooth depth of described first group of tooth.

4. powder cylinder according to claim 3, is characterized in that:

Described notch runs through the circumferential wall of described over cap.

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