Portable film developing tank

Abstract

The portable film developing tank comprises a shading tank body, a base, a shading cover, a handle and a transmission shaft, the base is fixed in the tank body and provided with a space for containing the lower portion of a film, the shading cover is installed on the shading tank body, a hole is formed in the shading cover, one end of the transmission shaft penetrates through the hole in the shading cover to be fixedly connected with the handle, and the other end of the transmission shaft is fixedly connected with the handle. And the other end is provided with a bayonet which is clamped and matched with the film shaft core. According to the portable film developing tank disclosed by the utility model, the film is directly put into the tank and then liquid medicine is poured into the tank, so that the developing operation can be carried out, a film in the film does not need to be disassembled, and therefore, the portable film developing tank can be used in a bright room and does not need a dark room. The shading tank body is small and exquisite and easy to carry, and developing liquid is saved. The shaft core on the film is clamped by the handle arranged outside the tank body, and the film in the film cassette can be rotated by rotating the handle during developing, so that developing liquid medicine can be in better contact with the film. And the developing operation is relatively simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to photographic equipment technical field, concretely relates to a portable film developing tank. BACKGROUND

[0002] The existing common film developing tank includes a tank cover, a light shielding cover, a tank body and a film core in the tank body, and the film in the film roll needs to be taken out from the film roll dark box and mounted on the film core in a dark bag or darkroom (such as an AP tank system), and the operation is inconvenient.

[0003] And the product on the market is large in size, generally more than 15 cm, and in order to better contact the liquid medicine with the film, the tank body needs to be shaken and other modes of operation.

[0004] The sandglass type film developing tank disclosed by Chinese patent CN207396968U is composed of an upper cover, a middle cover and a lower cover, and an upper tank and a lower tank between them, wherein the middle cover and the upper tank funnel and the lower tank funnel form a liquid passage connecting the upper tank and the lower tank; the developing tank is a sandglass structure that can be inverted up and down to prevent, the upper tank is transparent to observe the liquid amount in the tank, and the lower tank is opaque to place the film core with the film wound thereon on the middle shaft. The sandglass type film developing tank realizes uniform flow contact of the photographic film on the film core in the tank with the liquid by repeatedly inverting the developing tank, solves the problem of large randomness of the operation of shaking the tank body of the traditional developing tank, but uses the upper tank and the lower tank, and the developing tank is larger.

[0005] Overall, the existing film developing tank is large in size, large in liquid medicine consumption, for example, the developing tank for 135 film needs 200-500 mL of liquid medicine, and is inconvenient to carry. UTILITY MODEL CONTENTS

[0006] The utility model provides a portable film developing tank, which can be operated in a bright room, has small liquid medicine consumption, is small in size, and is simple and easy to operate.

[0007] The utility model adopts the following technical scheme:

[0008] A portable film developing tank, comprising a light shielding tank body, a base, a light shielding cover, a handle and a transmission shaft, the base is fixed in the tank body, the base has a space for accommodating the lower part of the film, the light shielding cover is installed on the light shielding tank body, the light shielding cover has a hole, one end of the transmission shaft is fixedly connected with the handle by penetrating the hole of the light shielding cover, and the other end has a bayonet port matched with the shaft core of the film.

[0009] A light shielding plate is fixed on the transmission shaft, the transmission shaft penetrates the light shielding cover, and the light shielding plate abuts against the inner side of the light shielding cover to block the hole of the light shielding cover.

[0010] The base is provided with a groove matched with a convex strip on the side surface of the film roll dark box. After the convex strip is clamped into the groove, the film is fixed, and the film can be shaken by the handle.

[0011] The handle comprises a handle body and a grip, the top end of the transmission shaft is fixed at one end of the handle body, and the grip is vertically fixed at the other end of the handle body.

[0012] The transmission shaft is screwed and fixed on the handle body.

[0013] The hole for screwing and fixing the transmission shaft on the handle body is a counterbore.

[0014] The grip comprises a screw shaft and a knurled sleeve, the screw shaft is screwed through the knurled sleeve on the handle body.

[0015] The light shielding cover is screwed on the light shielding can body.

[0016] The portable film developing can has the advantages that:

[0017] 1. The portable film developing can directly puts the film into the light shielding can body, pours in the developing solution and covers the light shielding cover to perform the developing operation, and the film in the film roll does not need to be taken out, so that the developing can be performed in a bright room without a dark room.

[0018] 2. The portable film developing can has the advantages that the film is put into the light shielding can body, the can body is small and slightly larger than the size of the film, is easy to carry and saves the developing solution.

[0019] 3. The portable film developing can has the advantages that the handle arranged outside the can body clamps the shaft core on the film, the film in the film roll dark box is rotated by rotating the handle during the developing, the developing solution can be in better contact with the film, and the developing operation is simple. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, the schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0021] Figure 1 It is a structure schematic view of the portable film developing can of the present application;

[0022] Figure 2 It is an exploded structure schematic view of the portable film developing can (showing the film);

[0023] Figure 3 It is Figure 2 The enlarged view of the middle C. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the present application will be clearly and completely described below in combination with specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0025] The film used in the portable developing tank of the present application includes a film cassette and a film in the cassette, and the film can be appropriately loosened or wound in the cassette with a certain space for movement. The structure and use method of the portable film developing tank of the present application are described below by taking a 135 film as an example.

[0026] As shown in Figures 1-3 The portable film developing tank comprises a light-shielding tank body 1, a base 2, a light-shielding cover 3, a handle 4 and a transmission shaft 5. The base 2 is fixed in the light-shielding tank body 1, and the base 2 is a groove with a space for accommodating the lower part of the film. The light-shielding cover 3 is screw-connected to the light-shielding tank body 1 (or can be fixed by using a buckle or other means). The light-shielding cover 3 has a hole, and the transmission shaft 5 is fixedly connected to the handle 4 at one end and has a bayonet 51 matched with the film shaft core 61 at the other end (for the convenience of understanding, Figure 1 the structure in the light-shielding tank body 1 is shown, but the light-shielding tank body 1 is not made of transparent material. The light-shielding tank body 1, the light-shielding cover 3 and other structures are black and light-shielding. They can be made of light-shielding materials such as plastic known to those skilled in the art). The base 2 can fix the film so that the film does not move randomly, especially when the handle and the transmission shaft rotate the film inside.

[0027] A light-shielding plate 52 is fixed on the transmission shaft 5. When the transmission shaft 5 passes through the light-shielding cover 3, the light-shielding plate 52 abuts against the inner side of the light-shielding cover 3 and blocks the hole on the light-shielding cover 3. This can prevent light from leaking through the hole on the light-shielding cover 3.

[0028] The base 2 is provided with a clamping groove 21 matched with the protrusions 62 on the side surface of the film cassette 6. The clamping groove 21 clamps the protrusions 62 on the outer side surface of the film cassette, so that the film cassette can be kept from rotating.

[0029] The handle 4 comprises a handle main body 41 and a grip 42. The top end of the transmission shaft 5 is screw-connected to one end of the handle main body 41, and the grip 42 is vertically fixed to the other end of the handle main body 41. The grip 42 comprises a screw shaft 421 and a knurled sleeve 422, and the screw shaft 421 is screw-connected to the handle main body 41 through the knurled sleeve 422.

[0030] The hole for screwing the transmission shaft 5 on the handle main body 41 is a counterbore (not shown in the figure). When the connecting hole of the handle main body 41 and the transmission shaft 5 is a counterbore, light leakage can also be prevented.

[0031] Method for using portable film developing tank

[0032] 1. Fix the film head of the film with adhesive tape or rubber ring outside the film cassette;

[0033] 2. Put the film into the light-proof tank body 1, and put the convex strip 61 on the side of the film cassette 6 into the clamping groove 21 of the base 2, so that the film will not move when the film is turned later;

[0034] 3. Pour the developing solution corresponding to the film, which will flow into the film cassette through the gap of the film cassette 6 and contact the film;

[0035] 4. Connect the bayonet 51 of the transmission shaft 5, which has been connected with the light-proof cover 3 and the handle 4, with the film core 61, cover the light-proof cover 3, and turn the handle 4 in one direction until it is blocked by resistance, then turn it in the opposite direction, and keep the cycle, so that the film in the film can be moved by turning the handle to make the film contact the developing solution better;

[0036] 5. After the developing time, open the light-proof cover to pour out the developing solution, and replace the developing solution (if only one step of developing solution is needed, this step can be ignored);

[0037] 6. Open the light-proof cover 3 to take out the film, wash it with clean water, and dry it to see the image.

[0038] The above only describes the embodiments of the present application and is not used to limit the present application. The present application can have various changes and variations for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A portable film developing tank characterized by comprising: The invention relates to a light-shielding film container, which comprises a light-shielding container body, a base, a light-shielding cover, a handle and a transmission shaft. The base is fixed in the container body and has a space for accommodating the lower part of a film. The light-shielding cover is installed on the light-shielding container body and has a hole. The transmission shaft is fixedly connected with the handle at one end and has a bayonet at the other end, which is matched with the film shaft core.

2. The portable film developing tank of claim 1, wherein, A light-shielding plate is fixed on the transmission shaft, which passes through the light-shielding cover and abuts against the inner side of the light-shielding cover to block the hole on the light-shielding cover.

3. The portable film developing canister of claim 1, wherein, The base is provided with a groove matched with the convex strip on the side of the film magazine.

4. The portable film developing canister of claim 1, wherein, The handle comprises a handle main body and a grip. The top end of the transmission shaft is fixed at one end of the handle main body, and the grip is fixed perpendicularly at the other end of the handle main body.

5. The portable film developing canister of claim 4, wherein, The transmission shaft is fixed on the handle main body by screwing.

6. The portable film developing canister of claim 5, wherein, The hole for screwing the transmission shaft on the handle main body is a counterbore.

7. The portable film developing canister of claim 4, wherein, The grip comprises a screw shaft and a knurled sleeve. The screw shaft passes through the knurled sleeve and is screwed on the handle main body.

8. The portable film developing canister of claim 1, wherein, The light-shielding cover is screwed on the light-shielding container body.

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