Film developing tank

Abstract

The utility model discloses a film developing tank which comprises a shading tank body, a shading cover, a handle, a transmission shaft and a flushing shaft core, a film accommodating space is arranged in the shading tank body, the flushing shaft core and the film accommodating space are arranged in the shading tank body side by side, the shading cover is arranged on the shading tank body, and a hole is formed in the shading cover. One end of the transmission shaft penetrates through a hole in the shading cover to be fixedly connected with the handle, the other end of the transmission shaft is connected with the flushing shaft core, and the flushing shaft core comprises a film reel and a connecting piece arranged on the film reel and connected with the transmission shaft. According to the 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 to carry out developing operation, and a film in the film does not need to be detached, so that the film developing tank can be used in a bright room. The tank body is small and easy to carry, and developing liquid is saved. The film can be rolled on the washing rotating shaft by rotating the handle, and then the film can be rotated by rotating the handle, so that the 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 film developing jar. BACKGROUND

[0002] The existing common film developing jar includes a jar cover, a light shielding cover, a jar body and a film core in the jar 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 jar system), and the operation is inconvenient.

[0003] Meanwhile, the products on the market are large in size, generally more than 15 cm, and in order to better contact the liquid medicine with the film, the jar body needs to be shaken and other methods are used for operation.

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

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

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

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

[0008] A film developing jar, comprising a light shielding jar body, a light shielding cover, a handle, a transmission shaft and a washing shaft core, wherein the light shielding jar body is provided with a film accommodating space, the washing shaft core is arranged side by side with the film accommodating space in the light shielding jar body, the light shielding cover is installed on the light shielding jar body, the light shielding cover is provided with a hole, one end of the transmission shaft is fixedly connected with the handle by penetrating through the hole of the light shielding cover, and the other end is connected with the washing shaft core, and the washing shaft core comprises a film reel and a connecting piece arranged on the film reel and connected with the transmission shaft.

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

[0010] The side of the light shielding plate close to the light shielding cover is provided with a groove, and the inner side of the light shielding cover is provided with a concave-convex structure matched with the groove of the light shielding plate.

[0011] The upper baffle and the lower baffle are arranged on the bottom and the upper part of the washing shaft core respectively, and a film accommodating space is arranged between the upper baffle and the lower baffle.

[0012] The washing shaft core is provided with two rows of convex teeth matched with the tooth holes of the film.

[0013] The upper baffle and the lower baffle are provided with at least one pair of opposite tabs, and a film insertion gap is formed between the tabs and the washing shaft core.

[0014] The edge of the light shielding cover is provided with a water inlet groove, the bottom of the light shielding tank body is provided with an L-shaped boss, the vertical surface of the L-shaped boss is close to the film, the horizontal surface extends to the side surface of the light shielding tank body away from the film, the water inlet groove extends into the L-shaped space formed by the L-shaped boss in the light shielding tank body, and a gap is formed between the water inlet groove and the vertical surface and the horizontal surface of the L-shaped boss.

[0015] The light shielding cover is provided with a water outlet, the inner side wall of the water outlet extends downward to form a light blocking strip, the side wall of the light shielding tank body corresponding to the water outlet is provided with a notch, the inner side of the side wall below the notch is provided with a light shielding strip, and the light blocking strip extends above the light shielding strip.

[0016] The handle comprises a handle body and a grip, and the top end of the transmission shaft is fixed to one end of the handle body, and the grip is vertically fixed to the other end of the handle body.

[0017] The transmission shaft is screwed and fixed on the handle body.

[0018] The hole for screwing and fixing the transmission shaft on the handle body is a counterbore.

[0019] The grip comprises a screw shaft and a knurled sleeve, and the screw shaft is screwed on the handle body through the knurled sleeve.

[0020] The light shielding cover is clamped on the light shielding tank body through buckles.

[0021] The beneficial effects of the utility model are as follows:

[0022] 1. The film developing tank of the utility model, after the film is directly put into the tank, pouring the developing solution can carry out developing operation, the film in the film does not need to be taken out to be put into the developing tank, therefore can be used in the bright room, does not need the darkroom.

[0023] 2. The film developing tank of the utility model, the film is put into the light shielding tank body, the light shielding tank body is only a little larger than two films, the tank body is small and exquisite, is easy to carry, saves the developing solution.

[0024] 3. The film developing tank of the utility model, the handle outside the tank body is clamped to the washing shaft core, rotating the handle can wind the film on the washing shaft core, can have the developing space bigger than the film darkroom, then rotating the handle can make the film rotate, can make the developing solution better contact with the film. Developing operation is also relatively simple. BRIEF DESCRIPTION OF DRAWINGS

[0025] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, the illustrative embodiment of the present application and its explanation are used to explain the present application, and do not constitute improper limitation to the present application. In the drawings:

[0026] Figure 1 It is the structure schematic view of the film developing tank of the present application;

[0027] Figure 2 It is the top view of the film developing tank of the present application (handle is not shown);

[0028] Figure 3 It is the H-H section structure schematic view of the film developing tank of the present application (film is shown); Figure 2

[0029] Figure 4 It is the C-C section structure schematic view of the film developing tank of the present application (film is not shown); Figure 2

[0030] Figure 5 It is the connection structure schematic view of transmission shaft and light shielding cover and handle;

[0031] Figure 6 It is the enlarged view of D of the present application; Figure 4

[0032] Figure 7 It is the exploded structure schematic view of the film developing tank of the present application;

[0033] Figure 8 It is the connection structure schematic view of transmission shaft and washing shaft core;

[0034] Figure 9 It is the local enlarged view of water outlet;

[0035] ​​​Figure 10 is a perspective view of the water outlet. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the present application will be described clearly and completely below in combination with the 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 any creative work fall within the scope of protection of the present application.

[0037] The film used in the film developing tank of the present application includes a film cassette and a film in the cassette. The structure and use method of the film developing tank of the present application will be described below by taking a 135 film as an example.

[0038] As shown in Figures 1-8 The utility model provides a film developing tank, including light -proof jar body 1, light -proof cover 2, transmission shaft 3, washing shaft core 4 and handle 5, be equipped with film containing space 11 in light -proof jar body, washing shaft core 4 and film containing space 11 side by side arrangement in light -proof jar body 1, light -proof cover 2 installs on light -proof jar body 1, there is hole 23 on light -proof cover 2, transmission shaft 3 one end passes through the hole 23 on light -proof cover 2 and handle 5 fixed connection, the other end has with washing shaft core 4 connects, washing shaft core 4 includes film reel 41 and sets up the connecting piece on film reel 41, namely upwardly extending ridge 42, ridge 42 and bayonet 31 of transmission shaft 3 match.

[0039] Transmission shaft 3 is fixed with light -proof plate, when transmission shaft passes through light -proof cover, light -proof plate leans against the inside of light -proof cover, and covers the hole on the light -proof cover. The light -proof plate can be a flat plate (no drawing), or it can have a concave-convex structure as described below, which better prevents light leakage.

[0040] As shown in Figure 5 The light -proof plate 32 is provided with a groove 321 on the side close to the light -proof cover 2, and the inner side of the light -proof cover 2 is provided with a concave-convex structure matching the groove 321 of the light -proof plate. The concave-convex structure of the light -proof cover 2 engages with the groove 321 and the side wall 322 of the groove of the light -proof plate 32. Through the concave-convex engagement structure of the light -proof plate 32 and the light -proof cover 2, light leakage is effectively prevented.

[0041] As shown in Figure 8 The washing shaft core 4 is fixed with an upper baffle 43 at the bottom and a lower baffle 44 at the upper part, and the film is wound between the upper baffle 43 and the lower baffle 44. Through the upper baffle 43 and the lower baffle 44, the film on the film reel 41 will not run up and down.

[0042] The washing shaft core 4 is provided with two rings of convex teeth 45 above and below, which match the tooth holes of the film.

[0043] The upper baffle 43 and the lower baffle 44 have at least one pair of opposite protrusions 46, and the protrusions 46 have a gap 47 with the washing shaft core 4.

[0044] As shown in Figure 2 , 4 , the water inlet groove 21 is provided on one side edge of the light shielding cover 2, as shown in Figure 6 , the L-shaped protrusion 12 is provided on the bottom of the light shielding can body 1 close to the film accommodating space 11, the vertical face 121 of the L-shaped protrusion is close to the film, the horizontal face 122 extends to the side of the light shielding can body 1 away from the film 6, the water inlet groove 21 extends into the L-shaped space formed by the L-shaped protrusion 12, and the water inlet groove 21 has a gap 123 between the vertical face 121 and the horizontal face 122 of the L-shaped protrusion 12. Figure 6 As shown by the flow direction of the developing solution indicated by the arrow in , the developing solution is added from the water inlet groove 21, enters the film accommodating space 11 and the space where the washing shaft core 4 is located through the gap 123, and the L-shaped protrusion 12 can prevent light leakage.

[0045] As shown in Figure 7 , 9 , the water outlet 22 is provided on the other side edge of the light shielding cover 2 away from the water inlet groove 21, the inner side wall of the water outlet 22 extends downward to form the light blocking strip 221, the side wall of the light shielding can body 1 corresponding to the water outlet 22 has the notch 13, the inner side of the side wall below the notch 13 is provided with the light shielding strip 14, and the light blocking strip 221 extends above the light shielding strip 14. Figures 9-10 As shown by the flow direction of the developing solution indicated by the arrow in , the developing solution is poured out from the water outlet 22 around the light blocking strip and the light shielding strip, and the light blocking strip 221 and the light shielding strip 14 can prevent light leakage.

[0046] As shown in Figure 7 , the handle 5 includes the handle body 51 and the grip 52, the top end of the transmission shaft 4 is screwed and fixed on one end of the handle body 51, and the grip 52 is vertically fixed on the other end of the handle body 51. The grip 52 includes the screw shaft rod 521 and the knurled sleeve 522, and the screw shaft rod 521 is screwed on the handle body 51 through the knurled sleeve 522.

[0047] As shown in the figure, the hole for screwing and fixing the transmission shaft 4 on the handle body 51 is a counterbore. When the hole for connecting the handle body 51 and the transmission shaft 4 is a counterbore, light leakage can also be prevented.

[0048] The use method of the film developing tank is as follows:

[0049] 1. The film in the film roll is pulled out, passes through the gap 46 of the washing shaft core 4, and is clamped on the protrusions 44.

[0050] 2. The film and the washing shaft core 4 are put into the light shielding can body 1.

[0051] 3. Pour the developer corresponding to the film (if it is a tank with a water inlet and the developer is poured from the water inlet, go to step 4).

[0052] 4. Connect the bayonet 41 of the drive shaft 4 with the light shield 2 and the handle 5, and connect the core 4 of the washing shaft, cover the light shield 2 and fasten it, if the developer has not been poured, pour the developer from the water inlet 21, rotate the handle 5 in one direction until you feel resistance, which means that the film in the film cassette has been completely pulled out, then rotate it in the opposite direction again until you feel resistance, and keep cycling, control the film in the film by rotating the handle, so that the film can be in better contact with the developer. (The film will not be rolled back into the film cassette, but by alternating clockwise and counterclockwise rotation of the handle, the film will be rolled tight and loose, so that it can be in better contact with the developer)

[0053] 5. After the washing time, pour out the developer from the water outlet 22, pour the developer for the next step from the water inlet 21 (if only one step of developer is needed, this step can be ignored).

[0054] 6. After the washing is finished, open the light shield 2 and take out the film, rinse it with clean water and dry it, and you can see the image.

[0055] The above only describes the embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various changes and modifications to the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the scope of the claims of the present application.

Claims

1. A film developing tank characterized by comprising: The light-shielding canister, the light-shielding cover, the handle, the transmission shaft and the washing shaft core are included, the film containing space is arranged in the light-shielding canister, the washing shaft core is arranged in the light-shielding canister side by side with the film containing space, the light-shielding cover is installed on the light-shielding canister, the light-shielding cover has a hole, the transmission shaft is fixedly connected with the handle through the hole on the light-shielding cover, and the other end is connected with the washing shaft core.

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

3. The film developing tank of claim 2, wherein The side surface of the light-shielding plate close to the light-shielding cover is provided with a groove, the inner side surface of the light-shielding cover is provided with a concave-convex structure matched with the groove of the light-shielding plate, and the concave-convex structure of the light-shielding cover is engaged with the groove and the side wall of the groove of the light-shielding plate.

4. The film developing tank of claim 1, wherein The upper baffle is fixed at the bottom of the washing shaft core, the lower baffle is arranged at the upper portion, and the film containing space is arranged between the upper baffle and the lower baffle.

5. The film developing tank of claim 1, wherein The washing shaft core is provided with upper and lower two rows of convex teeth matched with the film tooth holes.

6. The film developing tank of claim 4, wherein The upper baffle and the lower baffle are provided with at least one pair of oppositely arranged tabs, and the tabs form a film insertion gap between the washing shaft core.

7. The film developing tank of claim 4, wherein The edge of the light-shielding cover is provided with a water inlet groove, the bottom of the light-shielding canister is provided with an L-shaped boss, the vertical surface of the L-shaped boss is close to the film, the horizontal surface extends to the side surface of the light-shielding canister away from the film, the water inlet groove extends into the L-shaped space formed by the L-shaped boss in the light-shielding canister, and the water inlet groove has a gap between the vertical surface and the horizontal surface of the L-shaped boss.

8. The film developing tank of claim 1, wherein The light-shielding cover is provided with a water outlet, the inner side wall of the water outlet extends downward to form a light blocking strip, the side wall of the light-shielding canister corresponding to the water outlet has a notch, the inner side of the side wall below the notch is provided with a light-shielding strip, and the light blocking strip extends above the light-shielding strip.

9. The film developing tank of claim 1, wherein, The handle includes a handle body and a grip, and the top end of the transmission shaft is fixed to one end of the handle body.

10. The film developing tank of claim 9, wherein, The grip includes a screw shaft and a knurled sleeve, and the screw shaft is screwed on the handle body through the knurled sleeve.

Images