Ink fountain

Abstract

The utility model belongs to the technical field of building auxiliary instruments, and particularly relates to an ink fountain. According to the technology, a first ink storage box is included, an ink storage cavity is formed in the first ink storage box, an ink inlet is formed in the first ink storage box, and a first plug is arranged at the ink inlet; an ink bin for supplying ink to the ink line is arranged in the lower left area of the ink storage cavity, and an ink line outlet is formed in the left side of the ink bin. A first through hole is vertically formed in the top of the ink bin, and a switch assembly used for opening and closing the first through hole is installed in the ink storage cavity. A mounting groove is formed in the first ink storage box, a wire coil is rotationally connected into the mounting groove, and a first through groove communicating the ink bin with the mounting groove is formed in the first ink storage box. When the first through hole is opened, ink in the ink storage cavity can enter the ink bin through the first through hole, under the cooperation of the ink storage cavity, the first through hole and the switch assembly, ink can be rapidly added into the ink bin, the tedious process of adding ink through an ink bottle is reduced, carrying of the ink bottle is reduced, and work is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to building auxiliary instrument technical field, especially, it is a kind of inkpot. BACKGROUND

[0002] Inkpot is a kind of tool that is extremely important in ancient and modern building construction. Through ink box, line is played to building height and plays the role of straightening and leveling, helps to ensure the straightness and flatness of building.

[0003] The existing inkpot is mainly composed of ink bin, line wheel, ink line (including line cone) and ink sign four parts. When using the existing inkpot, the following problems will occur: using ink bin to store ink, if the ink in the ink bin is added too much, it will cause the ink trace of the ejected line to spread, so that the ejected line is thicker than expected, in this case, because it is necessary to re-adjust the inkpot or carry out additional correction work, not only the construction progress will be affected, but also the quality of building may be affected. And the storage capacity of ink in the ink bin is limited, which will exist the situation of frequently adding ink using ink bottle, which will also affect the progress. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing an inkpot, which reduces the cumbersome process of adding ink using ink bottle and also reduces the carrying of ink bottle.

[0005] The inkpot includes a horizontally arranged first ink storage box, the first ink storage box is provided with an ink storage cavity, an ink inlet opening into the ink storage cavity is formed in the first ink storage box, and a first plug is arranged at the ink inlet end of the ink inlet opening;

[0006] The left lower region of the ink storage cavity is provided with an ink bin for supplying ink to the ink line, and the left side of the ink bin is provided with an ink line outlet;

[0007] A first through hole for the ink in the ink storage cavity to enter the ink bin is vertically formed in the top of the ink bin, and a switch assembly for opening and closing the first through hole is installed in the ink storage cavity; when the first through hole is opened, the ink in the ink storage cavity can enter the ink bin through the first through hole;

[0008] The first ink storage box is provided with a mounting groove, a line reel is rotatably connected in the mounting groove, and the first ink storage box is provided with a first through slot connecting the ink bin and the mounting groove.

[0009] When the first through hole is opened, the ink in the ink storage cavity can enter the ink bin through the first through hole, the ink line passes through the first through slot from the line reel into the ink bin, and then passes out from the ink line outlet for use; the cooperation of the ink storage cavity, the first through hole and the switch assembly can quickly add ink to the ink bin, reduce the cumbersome process of adding ink using ink bottle, and also reduce the carrying of ink bottle, which is convenient to use; the first plug can prevent ink leakage.

[0010] Further, the switch assembly comprises a barrel body vertically installed on the top wall in the ink storage cavity, the barrel mouth of the barrel body faces upward, a piston rod vertically arranged in the barrel body can move up and down, a second through hole through which the piston rod can independently pass is formed in the bottom of the barrel body, the top of the piston rod is fixed with a fixed block which can move up and down in the barrel body, the first spring is independently arranged on the piston rod between the bottom of the barrel body and the fixed block, the top of the fixed block is provided with an extension adjustment assembly which drives the fixed block to move up and down.

[0011] When the extension adjustment assembly drives the fixed block to move downward, the first spring is in a compressed state, the bottom of the piston rod blocks the hole at the upper end of the first through hole, and the first through hole is in a closed state; when the extension adjustment assembly drives the fixed block to move upward, the first spring is in a free state, the piston rod moves upward, and the bottom of the piston rod is located above the first through hole, and the first through hole is opened.

[0012] When the extension adjustment assembly drives the fixed block to move downward, the first spring is in a compressed state, the bottom of the piston rod blocks the hole at the upper end of the first through hole, and the first through hole is in a closed state, and the ink storage cavity stops supplying ink to the ink tank; when the extension adjustment assembly drives the fixed block to move upward, the first spring is in a free state, the piston rod moves upward, and the bottom of the piston rod is located above the first through hole, and the first through hole is opened, and the ink in the ink storage cavity enters the ink tank through the first through hole; the first through hole is opened and closed by moving the piston rod up and down, which can conveniently and quickly supply ink to the ink tank.

[0013] Further, the extension adjustment assembly comprises a locking block, a first protrusion is fixed to the left end of the locking block;

[0014] A sliding groove which is in left-right sliding cooperation with the locking block is arranged on the first ink storage box corresponding to the locking block, the left end of the sliding groove extends to the left end of the barrel body, and a connecting hole which is in communication with the barrel mouth and the sliding groove is formed in the first ink storage box corresponding to the barrel mouth of the barrel body;

[0015] When the locking block slides to the right, the first protrusion slides into the sliding groove on the right side of the barrel body, the fixed block moves upward into the sliding groove, the top of the fixed block is in wedge-shaped cooperation with the left end of the first protrusion, the first spring is in a free state, the piston rod moves upward, and the bottom of the piston rod is located above the first through hole, and the first through hole is opened;

[0016] When the locking block slides to the left, the first protrusion slides to the left end of the sliding groove, the fixed block moves downward, the first spring is in a compressed state, the bottom of the piston rod blocks the hole at the upper end of the first through hole, and the first through hole is closed;

[0017] A locking assembly is arranged in the sliding groove to lock the locking block after it slides to the left, and a fixed cover which covers the sliding groove is arranged on the first ink storage box, and a sliding hole through which the locking block can slide left and right is formed in the fixed cover.

[0018] The locking block slides left and right within the groove, and the spring force of the first spring drives the fixing block and piston rod to move up and down, thereby opening and closing the first through hole; the fixing cover can prevent the locking block from sliding out of the groove.

[0019] Furthermore, the locking assembly includes a second spring horizontally disposed in the right groove of the locking block. During the left and right sliding of the locking block in the groove, the right end of the locking block is always in contact with the left end of the second spring. When the second spring is in a free state, the first protrusion is located at the left end of the groove, and the elastic force of the first spring is less than that of the second spring.

[0020] When the ink tank needs to be refilled, slide the locking block to the right to compress the second spring on the right end, opening the first through hole for ink refilling. After the ink tank is refilled, release the locking block. Since the elastic force of the first spring is less than that of the second spring, the second spring presses the locking block to the left, causing the first protrusion to move to the left and press the fixing block. The fixing block moves downward, driving the piston rod downward, thereby closing the first through hole. Alternatively, the left end of the second spring can be connected to the right end of the locking block, with the right end of the second spring fixed to the side wall of the right end of the slide groove. This makes the locking block more stable during left and right sliding. In specific use, the locking component can also be a locking plate or locking rod on the fixed cover that locks after the locking block slides to the left.

[0021] Furthermore, a fixing post is fixed on the groove wall at the right end of the slide, the right end of the second spring is fixed to the fixing post, the right end of the locking block is provided with a blind hole, and the left end of the second spring is fixed in the blind hole.

[0022] One end of the second spring is fixed to the locking block, and the other end is fixed to the fixing post, which can prevent the locking block and the second spring from shifting. In actual use, the right end of the second spring can also be installed on the fixing post, and the left end can be placed in the blind hole for easy replacement.

[0023] Furthermore, the cross-section of the coil is in the shape of an "I" and the mounting groove is a second through groove that is connected front and back and has an annular structure. The wall of the second through groove is provided with an annular groove for the coil to rotate in an annular manner.

[0024] There are two annular grooves, which cooperate with the "I"-shaped wire reel to insert the wire reel into the annular groove, making it convenient to use ink lines.

[0025] Furthermore, guide sleeves are installed at the ink line outlet, the connection between the ink tank and the first through slot, and the connection between the first through slot and the second through slot.

[0026] The guide sleeve can reduce friction and prevent the cotton thread from breaking during the pulling and retraction process.

[0027] Furthermore, a second ink cartridge is hinged to the right end of the first ink cartridge, and a sponge is provided inside the ink tank.

[0028] The ink tank, the first through groove and the second through groove on the first ink storage box are all recess structure with downward opening, and the ink tank, the first through groove and the second through groove on the second ink storage box are all recess structure with upward opening; when the bottom of the first ink storage box is folded with the left end of the top of the second ink storage box, the recess structure of the ink tank, the first through groove and the second through groove on the first ink storage box and the recess structure of the corresponding ink tank, the first through groove and the second through groove on the second ink storage box correspond one by one and enclose an internal space; the ink thread of the thread reel extends to the left side of the ink thread outlet after passing through the first through groove and the ink tank of the first ink storage box and the internal space enclosed by the first through groove and the ink tank; the ink thread is generally cotton thread, when the cotton thread is broken due to the use environment outside, the remaining cotton thread can be collected into the thread reel, the second ink storage box is hinged, the second ink storage box is opened like a hinge, the cotton thread is quickly reinstalled, the thread reel is replaced, and the operation is more convenient; the sponge can store the ink in the ink tank and supply ink to the cotton thread.

[0029] Further, the connecting hole is a third through hole which is communicated between the inside and the outside, and a second plug is arranged in the third through hole.

[0030] The third through hole can facilitate replacement of the fixing block, the piston rod and the first spring, and facilitate maintenance; and the second plug can prevent the first spring from ejecting the fixing block from the third through hole.

[0031] Further, a positioning needle is arranged at the ink thread outlet, and a shaking handle is arranged on the thread reel.

[0032] The positioning needle can preliminarily position and prevent the ink on the ink thread from dirtying hands; and the shaking handle can quickly collect the ink thread.

[0033] Compared with the prior art, the utility model has the following beneficial effects:

[0034] When the first through hole is opened, the ink in the ink storage cavity can enter the ink tank through the first through hole, and the cooperation of the ink storage cavity, the first through hole and the switch assembly can quickly add ink to the ink tank, reduce the cumbersome process of adding ink by using an ink bottle, reduce the carrying of the ink bottle, and make work more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a main view structural schematic diagram of an ink funnel;

[0036] Figure 2 is Figure 1 is a sectional view structural schematic diagram along line B-B;

[0037] Figure 3 is Figure 1 is a bottom view structural schematic diagram of the first ink storage box with the barrel body and the sliding groove being empty;

[0038] Figure 4For Figure 3 The sectional structure schematic diagram along C-C line in the middle;

[0039] Figure 5 For Figure 1 The enlarged structure schematic diagram of the piston rod in the middle A is closed;

[0040] Figure 6 For Figure 1 The enlarged structure schematic diagram of the piston rod in the middle A is opened;

[0041] Figure 7 For Figure 6 The partial sectional structure schematic diagram of the locking block in the middle from the top;

[0042] Figure 8 For Figure 1 The reduced three-dimensional structure schematic diagram;

[0043] Figure 9 For Figure 8 The structure schematic diagram of the second ink storage box in the middle after being opened;

[0044] Figure 10 For Figure 8 The exploded structure schematic diagram.

[0045] The names of the components in the figure: 1, the first ink storage box; 2, the first plug; 3, the ink storage cavity; 4, the wire disc; 5, the second ink storage box; 6, the rocking handle; 7, the first through slot; 8, the guide sleeve; 9, the sponge; 10, the positioning needle; 11, the annular groove; 12, the second through slot; 13, the first through hole; 14, the ink tank; 15, the barrel; 16, the second through hole; 17, the sliding groove; 18, the fixed column; 19, the ink inlet; 20, the second plug; 21, the locking block; 22, the fixed cover; 23, the second spring; 24, the piston rod; 25, the first spring; 26, the blind hole. DETAILED DESCRIPTION

[0046] The utility model will be further described below by specific embodiments combined with the drawings, but not used to limit the utility model, any modification, equivalent replacement, improvement etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

[0047] EMBODIMENT

[0048] The embodiment adopts the following materials:

[0049] 1, prepare several injection molding materials such as fiber reinforced plastic, light in weight, high in strength and corrosion resistant, and use the injection molding mode to manufacture the first ink storage box 1, the second ink storage box 5, the locking block 21, the fixed cover 22 and the piston rod 24.

[0050] 2, prepare a "H" type structure of the reel 4, preferably with cotton reel 4 to facilitate the use of the ink;

[0051] 3, prepare a piece of water-absorbing sponge 9, a pivot, a guide sleeve 8;

[0052] 4, prepare a folding handle 6, preferably; handle 6 for the prior art, mainly composed of rocker, handle and connecting shaft;

[0053] 5, prepare two springs, respectively as the second spring 23 and the first spring 25, the second spring 23 is greater than the first spring 25;

[0054] 6, prepare a positioning needle 10.

[0055] The above materials are assembled as follows:

[0056] Step 1: production

[0057] The first ink storage box 1, as shown in Figure 3 and Figure 4 The first ink storage box 1 is a rectangular block structure, as shown in Figure 4 The two corners of the upper end of the first ink storage box 1 are rounded, which can increase the impact resistance of the first ink storage box 1 and facilitate the demolding of the first ink storage box 1.

[0058] As shown in Figure 4 A semicircular slot is provided at the right end of the first ink storage box 1, which can accommodate the reel 4, and the slot is the second slot 12.

[0059] As shown in Figure 3 A ring groove 11 is provided at the upper and lower ends of the second slot 12 for clamping the reel 4, which can realize the rotation of the reel 4 along the ring groove 11 without falling off.

[0060] As shown in Figure 3 and Figure 4 A recess is processed at the lower left part of the first ink storage box 1 as an ink tank 14, and the left end of the ink tank 14 is provided with an ink line outlet.

[0061] As shown in Figure 3 A through slot is provided at the horizontal center of the first ink storage box 1, which connects the ink tank 14 and the second slot 12 from left to right, and is the first slot 7.

[0062] As shown in Figure 4 The upper left part of the first ink storage box 1 is hollow as a storage cavity 3.

[0063] As shown in Figure 4 A first through hole 13 is vertically provided at the right end of the ink tank 14 and connected to the storage cavity 3.

[0064] As Figure 4 shown, the upper inner wall of the ink storage cavity 3 is fixed with a vertical barrel 15, the barrel mouth of the barrel 15 is upward, the vertical center line of the bottom of the barrel 15 coincides with the hole center line of the first through hole 13, and a hole communicating inside and outside is formed at the center of the bottom of the barrel 15, which is the second through hole 16;

[0065] As Figure 4 shown, a square chute 17 is horizontally formed on the top surface of the first ink storage box 1, the left end of the chute 17 extends to the left end of the barrel mouth of the barrel 15, and the barrel mouth and the chute 17 are communicated up and down at the barrel mouth through a connecting hole, the right end of the chute 17 is connected with a transverse fixed column 18 for fixing the second spring 23;

[0066] Finally, as Figure 4 shown, an ink inlet 19 communicating with the ink storage cavity 3 is formed on the top of the first ink storage box 1, and the ink inlet 19 is processed as a threaded hole.

[0067] As Figure 10 shown, the first ink storage box 1 and the second ink storage box 5 have the same structure and are processed by the same method.

[0068] Two piston rods 24 are made, as Figure 5 and Figure 6 shown, the top of the piston rod 24 is fixed with a fixed block, which can be integrally formed, the piston rod 24 can pass through the second through hole 16, the fixed block is in gap cooperation with the inner side wall of the barrel 15, the upper end of the fixed block and the lower end of the piston rod 24 are both chamfered, and the bottom of the piston rod 24 is fixed with a sealing block according to the situation.

[0069] Two locking blocks 21 are made, as Figure 6 and Figure 7 shown, the main body of the locking block 21 is a square block structure, a square protrusion is connected to the left and right ends of the locking block 21 respectively, and the locking block 21 can also be integrally formed; the protrusion at the left end of the locking block 21 is a first protrusion, the left end of the first protrusion is chamfered as Figure 7 shown, and cooperates with the fixed block in wedge shape, the protrusion at the right end of the locking block 21 is a second protrusion, a blind hole 26 is formed at the right end of the second protrusion, and the horizontal length of the whole formed by the locking block 21, the first protrusion and the second protrusion is less than the length of the chute 17.

[0070] Two fixed covers 22 are made, as Figure 6 and Figure 10 shown, the main body of the fixed cover 22 is a square plate structure, as Figure 6 shown, a square hole is formed on the top surface of the fixed cover 22, and the size of the square hole needs to meet the sliding of the locking block 21 left and right and not to fall off.

[0071] As Figure 1 and Figure 2As shown, the first ink cartridge 1 and the second ink cartridge 5 are hinged at their right ends, which can be referred to as the sleeve hinge structure of a hinge; the left ends of the first ink cartridge 1 and the second ink cartridge 5 are connected with mutually cooperating buckles.

[0072] Step 2: Assembly

[0073] like Figure 4 As shown, place the first ink cartridge 1 horizontally; Figure 5 and Figure 6 As shown, the first spring 25 is installed inside the barrel 15. The piston rod 24 passes through the first spring 25 and the second through hole 16, and is located below the second through hole 16. The second plug 20 is installed at the upper end of the third through hole. The second plug 20 is used to limit the position of the piston rod 24. The second spring 23 is installed between the blind hole 26 and the fixing post 18. It can be fixed or not fixed. The locking block 21 is installed in the slide groove 17. It is necessary to ensure that when the first spring 25 is in the free state, the upper end of the fixing block is located in the slide groove 17, and the bottom of the piston rod 24 is located above the first through hole 13. When the first protrusion at the left end of the locking block 21 slides to the left end of the slide groove 17, the first spring 25 is in the compressed state, and the bottom of the piston rod 24 blocks the first through hole 13. Then, the fixing cover 22 is installed on the slide groove 17 to prevent the locking block 21 from falling off. Finally, the first plug 2 is threadedly installed on the ink inlet 19, and the sponge 9 is placed in the ink tank 14.

[0074] Install the components on the second ink cartridge 5 using the same method. For example... Figure 8 and Figure 9 As shown, the first ink cartridge 1 and the second ink cartridge 5 are hinged together by a pivot. Figure 9 As shown, the coil 4 is installed in the second through slot 12, as follows. Figure 2 As shown, the upper and lower ends of the coil 4 fit into the annular groove 11 and can rotate in annularly along the annular groove 11. The connecting shaft of the crank handle 6 is connected to the center of one side of the coil 4.

[0075] Guide sleeves 8 are installed at the ink line outlet of ink tank 14, at the junction of the first through groove 7 and ink tank 14, and at the junction of the first through groove 7 and second through groove 12. The cotton thread is passed through the guide sleeve 8 and connected to the positioning pin 10. After the first ink storage box 1 and the second ink storage box 5 are closed, they are fixed by a buckle.

[0076] Instructions for use are as follows:

[0077] In use, unscrew the first plug 2 and pour the ink into the ink storage chamber 3. When the ink tank 14 needs to be refilled, it can be done as follows: Figure 6As shown, the locking block 21 is slid to the right, the first protrusion at the left end of the locking block 21 is located at the right side of the fixed block, the fixed block is lifted by the elastic force of the first spring 25, the bottom of the piston rod 24 is located above the first through hole 13, and the ink is supplemented to the ink in the ink tank 14 through the first through hole 13;

[0078] As shown in the figure, the locking block 21 is slid to the right, the first protrusion at the left end of the locking block 21 is located at the right side of the fixed block, the fixed block is lifted by the elastic force of the first spring 25, the bottom of the piston rod 24 is located above the first through hole 13, and the ink is supplemented to the ink in the ink tank 14 through the first through hole 13; Figure 5 As shown, the locking block 21 is slid to the left, the first protrusion at the left end of the locking block 21 is wedge-shaped with the fixed block at the upper end of the piston rod 24, the fixed block is extruded downward, the piston rod 24 is pressed downward, the first through hole 13 is blocked, the elastic force of the second spring 23 is greater than that of the first spring 25, and the sliding of the locking block 21 due to non-human conditions can be prevented. The ink storage cavity 3 can quickly add ink to the ink tank 14, reduce the cumbersome process of adding ink with an ink bottle, also reduce the carrying of the ink bottle, and increase the convenience of work.

[0079] The above technical scheme can well solve the problem of frequent use of ink bottles to add ink, and also has the following effects: the guide sleeve 8 can reduce the friction of the product itself to reduce the breaking of the cotton thread; when the cotton thread is broken due to the use environment outside, the remaining cotton thread will be collected into the thread disc 4, at this time the second ink storage box 5 is opened like a hinge, and the cotton thread is quickly reinstalled.

Claims

1. An ink fountain comprising a horizontally arranged first ink reservoir (1), characterized in that: The first ink storage box (1) is internally provided with an ink storage cavity (3), and an ink inlet (19) for the ink to enter the ink storage cavity (3) is formed on the first ink storage box (1); the ink inlet (19) is provided with a first plug (2) at an ink inlet end thereof; An ink tank (14) for supplying ink to the ink line is arranged at a lower left region of the ink storage cavity (3), and the left side of the ink tank (14) is provided with an ink line outlet; A first through hole (13) for the ink in the ink storage cavity (3) to enter the ink tank (14) is vertically formed on the top of the ink tank (14), and a switch assembly for opening and closing the first through hole (13) is arranged in the ink storage cavity (3); when the first through hole (13) is opened, the ink in the ink storage cavity (3) can enter the ink tank (14) through the first through hole (13); The first ink storage box (1) is provided with a mounting groove, and a wire reel (4) is rotatably connected in the mounting groove; the first ink storage box (1) is provided with a first through slot (7) for connecting the ink tank (14) and the mounting groove.

2. The ink fountain of claim 1, wherein: The switch assembly comprises a barrel body (15) which is vertically arranged on the top wall of the ink storage cavity (3); the barrel mouth of the barrel body (15) faces upward; a piston rod (24) which can move up and down along the barrel body (15) is vertically arranged in the barrel body (15); a second through hole (16) through which the piston rod (24) can independently pass is formed on the bottom of the barrel body (15); the top of the piston rod (24) is fixed with a fixed block which can move up and down in the barrel body (15); the first spring (25) is independently arranged on the piston rod (24) between the bottom of the barrel body (15) and the fixed block; the top of the fixed block is provided with an extension adjustment assembly for driving the fixed block to move up and down; When the extension adjustment assembly drives the fixed block to move downward, the first spring (25) is in a compressed state, the bottom of the piston rod (24) blocks the hole at the upper end of the first through hole (13), and the first through hole (13) is in a closed state; when the extension adjustment assembly drives the fixed block to move upward, the first spring (25) is in a free state, the piston rod (24) moves upward, and the bottom of the piston rod (24) is located above the first through hole (13), and the first through hole (13) is opened.

3. The ink fountain of claim 2, wherein: The extension adjustment assembly comprises a locking block (21), and the left end of the locking block (21) is fixed with a first protruding block; A sliding groove (17) which is in left-right sliding cooperation with the locking block (21) is arranged on the first ink storage box (1) corresponding to the locking block (21); the left end of the sliding groove (17) extends to the left end of the barrel body (15); and a connecting hole which is in communication with the barrel mouth and the sliding groove (17) is formed on the first ink storage box (1) corresponding to the barrel mouth of the barrel body (15); When the locking block (21) slides to the right, the first protruding block slides into the sliding groove (17) on the right side of the barrel body (15), the fixed block moves upward into the sliding groove (17), the top of the fixed block is in wedge-shaped cooperation with the left end of the first protruding block, the first spring (25) is in a free state, the piston rod (24) moves upward, the bottom of the piston rod (24) is located above the first through hole (13), and the first through hole (13) is opened; When the locking block (21) slides to the left, the first protrusion slides to the left end of the slide groove (17), the fixing block moves downward, the first spring (25) is in a compressed state, and the bottom of the piston rod (24) blocks the opening at the upper end of the first through hole (13) to close the first through hole (13); The slide (17) is provided with a locking component that locks the locking block (21) after it slides to the left. The first ink storage box (1) is provided with a fixed cover (22) that covers the slide (17). The fixed cover (22) has a sliding hole on which the locking block (21) can slide left and right.

4. The ink fountain of claim 3 wherein: The locking assembly includes a second spring (23) horizontally disposed in the slide groove (17) on the right side of the locking block (21). During the left and right sliding of the locking block (21) in the slide groove (17), the right end of the locking block (21) is always in contact with the left end of the second spring (23). When the second spring (23) is in a free state, the first protrusion is located at the left end of the slide groove (17), and the elastic force of the first spring (25) is less than the elastic force of the second spring (23).

5. The ink fountain of claim 4 wherein: A fixing post (18) is fixed on the groove wall at the right end of the slide (17). The right end of the second spring (23) is fixed to the fixing post (18). The right end of the locking block (21) is provided with a blind hole (26). The left end of the second spring (23) is fixed in the blind hole (26).

6. The ink fountain of claim 5 wherein: The cross-section of the coil (4) is in the shape of an "I" and the mounting groove is a second through groove (12) that is connected front and back and has an annular structure. An annular groove (11) for the coil (4) to rotate in annularly is provided on the groove wall of the second through groove (12).

7. The ink fountain of claim 6 wherein: Guide sleeves (8) are installed at the ink line outlet, the connection between the ink tank (14) and the first through groove (7), and the connection between the first through groove (7) and the second through groove (12).

8. The ink fountain of claim 7 wherein: The right end of the first ink storage box (1) is hinged to the second ink storage box (5), and the ink tank (14) is provided with a sponge (9).

9. The ink fountain of claim 8 wherein: The connecting hole is a third through hole that connects the inside and outside, and a second plug (20) is provided inside the third through hole.

10. The ink fountain of claim 1 wherein: The ink line outlet is provided with a positioning pin (10), and a crank handle (6) is installed on the spool (4).

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