Ink fountain for marking on construction site

Abstract

The utility model belongs to the technical field of ink fountains for construction site marking, and particularly relates to an ink fountain for construction site marking, which comprises an ink fountain body and a power cavity, a take-up roller is rotatably mounted in an inner cavity of the ink fountain body, the power cavity is arranged in the ink fountain body and positioned on one side of the take-up roller, and a turntable is rotatably mounted in the power cavity and positioned on the other side of the take-up roller. A plurality of grooves which are annularly distributed at equal intervals are formed in the rotary disc, second limiting blocks are slidably installed in the power cavity and located at the top of the rotary disc, the lower ends of the second limiting blocks extend into the grooves, pull rods are fixedly installed at the tops of the second limiting blocks, and the upper ends of the pull rods penetrate through the top of the power cavity and extend to the outside; a first spring is arranged in the power cavity and located on the pull rod in a sleeving mode, it is ensured that the take-up roller cannot rotate during line snapping, then the ink line wound on the take-up roller cannot be lengthened, and it is ensured that after the first cover plate and the second cover plate are opened, the two ink absorption sponges in the ink fountain body can be taken out to be replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of ink fountains for marking lines at construction sites, in particular to an ink fountain for marking lines at construction sites. Background Art

[0002] The ink fountain is composed of four parts: ink tank, line wheel, ink line and ink stick. It is a very common tool in the traditional Chinese woodworking industry. The ink fountain is usually used for measurement and house construction.

[0003] For example, the Chinese patent with the publication number CN220007793U discloses a self-made ink fountain, including: a first box body, the first box body is provided with a first cavity and a second cavity, a first line hole is provided between the first cavity and the second cavity; a line collection component is installed in the first cavity; a collecting component is installed in the second cavity; a second box body, the second box body is arranged at the outlet end of the first box body, and a second line hole is arranged at the connection between the second box body and the first box body; a first ink-absorbing sponge and ink are arranged in the second box body; a third line hole is arranged at the front end of the second box body; a reflux channel is arranged below the second line hole, and the reflux channel connects the second cavity and the second box body. The ink remaining on the line body is collected by the collecting component, and the collected ink is recycled from the reflux channel to the second box body, so as to avoid a lot of ink remaining on the line body to cause ink waste; at the same time, the collecting component and the line collection component are arranged in different cavities to avoid large pollution caused by the line collection bin.

[0004] The above patent has the following problems:

[0005] This patent has some disadvantages when in use, such as: when the device is in use, when the ink line is pulled out of the ink fountain body to a suitable length for marking, the ink line in the ink fountain body cannot be fixed, and when the ink line is pulled by a person, the ink line will still be stretched, and when the second ink-absorbing sponge in the device is repeatedly squeezed for a long time and its elasticity is weakened and it cannot be used anymore, the device is not convenient for replacing the second ink-absorbing sponge. In view of this, we propose an ink fountain for marking construction sites. Utility Model Content

[0006] The utility model aims to provide an ink fountain for marking construction sites to solve the problems raised in the above-mentioned background technology.

[0007] In view of this, the utility model provides an ink fountain for marking construction sites, comprising an ink fountain body, a line-receiving roller being rotatably installed in the inner cavity of the ink fountain body, and further comprising:

[0008] A power cavity, the power cavity is opened in the ink fountain body and is located on one side of the wire-receiving roller, a turntable is rotatably installed in the power cavity, a plurality of grooves equidistantly distributed in an annular shape are opened on the turntable, a limit block 2 is slidably installed in the power cavity and located on the top of the turntable, and the lower end of the limit block 2 extends into the groove, a pull rod is fixedly installed on the top of the limit block 2, and the upper end of the pull rod passes through the top of the power cavity and extends to the outside, a spring 1 is sleeved on the pull rod in the power cavity, one end of the wire-receiving roller passes through one side of the inner cavity of the ink fountain body and extends into the power cavity, and one end of the wire-receiving roller is coaxially connected to the turntable, one end of the turntable passes through one side of the power cavity and extends to the outside and is fixedly installed with a rocker;

[0009] A limiting component, which is located in the ink fountain body and is used to limit the position of the limiting block 2;

[0010] A through groove, the through groove is opened at the top of the second cavity in the ink fountain body, a sealing gasket is fixedly installed in the through groove, a cover plate 1 and a cover plate 2 are rotatably installed on the inner wall of the through groove and located on the top of the sealing gasket, and one end of the cover plate 2 is located on the top of one end of the cover plate 1;

[0011] A fixing component is located in the cover plate 2 and is used to fix the cover plate 1 and the cover plate 2.

[0012] In the present technical solution, when it is necessary to mark the line during use, the staff lifts the pull rod by hand, so that the pull rod drives the limit block 2 to move upward in the power chamber. At this time, the spring 1 is squeezed and will shrink until the lower end of the limit block 2 is completely pulled out of one of the grooves. During the upward displacement of the limit block 2, the limit assembly is provided to fix the position of the limit block 2. Subsequently, the staff can pull the ink line wrapped around the take-up roller. When the ink line is stretched, the take-up roller will be driven to rotate, and then the take-up roller The turntable will be driven to rotate. When the ink line is pulled out of the ink fountain body by a suitable distance, the limit assembly will release the fixation of the limit block 2 through the set limit assembly. Then, under the action of the rebound force of the spring 1, the spring 1 will push the limit block 2 to move downward until the lower end of the limit block 2 is inserted into the groove directly below it, thereby fixing the position of the turntable so that it will not rotate anymore. Then, the take-up roller will also be limited, so that the ink line can no longer be stretched, ensuring that the ink line will not be stretched further when the ink line is tightened for line marking.

[0013] When the two ink-absorbing sponges in the ink fountain body need to be replaced due to their elasticity gradually weakening due to repeated squeezing, the fixing assembly is used to release the fixation of cover plate 1 and cover plate 2. Subsequently, cover plate 1 and cover plate 2 are rotated and opened by hand, and then the two damaged ink-absorbing sponges are taken out and replaced. After the replacement is completed, the staff rotates cover plate 1 and cover plate 2 by hand again and closes them. Then, the fixing assembly is used to fix the position of cover plate 1 and cover plate 2 so that they will not be opened. Under the action of the sealing gasket, ink leakage can be prevented.

[0014] In the above technical solution, further, the limit assembly includes:

[0015] A limit groove is provided in the limit block 2, a slide groove is provided in the ink fountain body and on one side of the limit block 2, a limit block 1 is slidably installed in the slide groove, one end of the limit block 1 contacts with one side of the limit block 2, the other end of the limit block 1 passes through one side of the slide groove and extends to the outside, a spring 2 is fixedly installed on one side of the limit block 2 away from the limit groove and located in the slide groove, and one end of the spring 2 is fixed to the inner wall of the slide groove.

[0016] In the technical solution, when fixing, when the limit groove is connected with the slide groove, under the action of the rebound force of the second spring, the second spring will push the limit block 1 to move in the direction of the limit groove until one end of the limit block 1 is inserted into the limit groove, so that the position of the limit block 2 can be fixed;

[0017] When releasing the fixation, the staff will manually move the limit block 1 to make it move away from the limit slot. At this time, the spring 2 will be squeezed and will shrink until one end of the limit block 1 is completely pulled out of the limit slot and enters the slide slot. At this time, the limit block 2 will be released.

[0018] In the above technical solution, further, the slide groove is communicated with the power cavity, and one end of the limit block is plugged into and matched with the limit groove.

[0019] In the technical solution, it is ensured that one end of the limiting block 1 can be inserted into the limiting groove, so that the position of the limiting block 2 can be fixed.

[0020] In the above technical solution, further, the fixing assembly includes:

[0021] Two threaded holes are respectively opened on the cover plate 1 and the cover plate 2, and the two threaded holes are connected, and the same hand screw is installed in the inner threads of the two threaded holes.

[0022] In this technical solution, the staff rotates the hand screw by hand, and under the action of the thread, the hand screw will rotate in the two threaded holes and move upward until the hand screw is completely moved out of the two threaded holes. At this time, the cover plate 1 and the cover plate 2 will be released, and then the cover plate 1 and the cover plate 2 are rotated by hand and opened;

[0023] The staff rotates cover one and cover two by hand and closes them, then places the thumb screw vertically just above one of the threaded holes, and then turns the thumb screw downward. Under the action of the thread, the thumb screw will move downward and enter the two threaded holes, thereby fixing the position of cover one and cover two so that they will not be opened.

[0024] In the above technical solution, further, the lower end of the second limit block is plug-fitted into the groove, and the pull rod is slidably connected to the power chamber.

[0025] In this technical solution, it is ensured that the lower end of the second limit block can be inserted into the groove; and it is ensured that the pull rod can slide in the power cavity.

[0026] In the above technical solution, further, one end of the take-up roller is rotatably connected to the power chamber, and the cross-sectional dimension of the through groove is an inverted convex structure.

[0027] In this technical solution, it is ensured that one end of the take-up roller can rotate in the power chamber.

[0028] In the above technical solution, further, the two ends of the spring 1 are tightly welded to the inner wall of the power chamber and the top of the limit block 2 respectively.

[0029] In this technical solution, the structural stability of spring one is ensured.

[0030] In the above technical solution, further, the second limit block and the pull rod are an integrally formed structure.

[0031] In this technical solution, the structural stability between the second limit block and the pull rod is ensured.

[0032] The beneficial effects of the utility model are:

[0033] 1. The ink fountain for marking construction sites can limit the take-up roller at any time through the cooperation of the set pull rod, spring one, limit block two, groove, turntable, power chamber, limit groove and limit assembly to ensure that the take-up roller will not rotate when the line is stretched, and the ink line wound on the take-up roller will not be stretched.

[0034] 2. The ink fountain for marking construction sites, with the cooperation of cover plate 1, cover plate 2, through groove, sealing gasket and fixing assembly, ensures that after cover plate 1 and cover plate 2 are opened, two ink-absorbing sponges in the ink fountain body can be taken out for replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0036] Figure 2 This is one of the internal structure diagrams of the ink fountain body in the utility model;

[0037] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0038] Figure 4 This is the second schematic diagram of the internal structure of the ink fountain body in the utility model;

[0039] Figure 5 For this utility model Figure 4 The enlarged structural diagram at B in the middle;

[0040] Figure 6 This is a schematic diagram of the regional structure of the through slot in the utility model;

[0041] Figure 7 This is a schematic diagram of the structure of the explosion of the cover plate 1 and the cover plate 2 in the utility model;

[0042] Figure 8 This is the third schematic diagram of the internal structure of the ink fountain body in the utility model.

[0043] The symbols in the figure are:

[0044] 1. Ink fountain body; 2. Cover plate 1; 3. Cover plate 2; 4. Thumb screw; 5. Rocker; 6. Limit block 1; 7. Pull rod; 8. Take-up roller; 9. Limit groove; 10. Power chamber; 11. Turntable; 12. Through groove; 13. Sealing gasket; 14. Threaded hole; 15. Groove; 16. Limit block 2; 17. Spring 1; 18. Slide groove; 19. Spring 2. DETAILED DESCRIPTION

[0045] The following is combined with Figure 1-Figure 8 This application is described in further detail.

[0046] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0047] Embodiment 1:

[0048] This embodiment provides an ink fountain for marking a construction site, comprising an ink fountain body 1, a take-up roller 8 is rotatably installed in the inner cavity of the ink fountain body 1, and further comprising:

[0049] A power chamber 10 is provided in the ink fountain body 1 and is located on one side of the take-up roller 8. A turntable 11 is rotatably installed in the power chamber 10. A plurality of grooves 15 with equal spacing in an annular shape are provided on the turntable 11. A second limit block 16 is slidably installed in the power chamber 10 and located on the top of the turntable 11. The lower end of the second limit block 16 extends into the groove 15. A pull rod 7 is fixedly installed on the top of the second limit block 16. The upper end of the pull rod 7 passes through the top of the power chamber 10 and extends to the outside. A spring 17 is sleeved on the pull rod 7 in the power chamber 10. One end of the take-up roller 8 passes through one side of the inner cavity of the ink fountain body 1 and extends into the power chamber 10. One end of the take-up roller 8 is coaxially connected to the turntable 11. One end of the turntable 11 passes through one side of the power chamber 10 and extends to the outside and is fixedly installed with a rocker 5.

[0050] A limiting component, which is located in the ink fountain body 1 and is used to limit the position of the limiting block 16;

[0051] A through groove 12 is provided at the top of the second cavity in the ink fountain body 1, a sealing gasket 13 is fixedly installed in the through groove 12, a cover plate 2 and a cover plate 3 are rotatably installed on the inner wall of the through groove 12 and at the top of the sealing gasket 13, and one end of the cover plate 2 3 is located at the top of one end of the cover plate 2;

[0052] The fixing component is located inside the cover plate 2 3 and is used to fix the cover plate 1 2 and the cover plate 2 3 .

[0053] When it is necessary to mark the line during use, the staff lifts the pull rod 7 by hand, so that the pull rod 7 drives the limit block 2 16 to move upward in the power chamber 10. At this time, the spring 17 is squeezed and will shrink until the lower end of the limit block 2 16 is completely pulled out of one of the grooves 15. During the upward displacement of the limit block 2 16, the limit assembly is used to fix the position of the limit block 2 16. Subsequently, the staff can pull the ink line wrapped around the take-up roller 8. When the ink line is stretched, the take-up roller 8 will be driven to rotate, and the take-up roller 8 will The rotating disk 11 is driven to rotate. When the ink line is pulled out of the ink fountain body 1 by a suitable distance, the limit assembly is set to release the fixation of the limit block 16. Then, under the action of the rebound force of the spring 17, the spring 17 will push the limit block 16 to move downward until the lower end of the limit block 16 is inserted into the groove 15 located directly below it, thereby fixing the position of the rotating disk 11 so that it will not rotate anymore. Then, the take-up roller 8 will also be limited, so that the ink line can no longer be stretched, ensuring that the ink line will not be stretched when the ink line is tightened for line marking.

[0054] When the two ink-absorbing sponges in the ink fountain body 1 need to be replaced because their elasticity is gradually weakened due to repeated squeezing, the fixing assembly is used to release the fixation of cover plate 1 2 and cover plate 2 3. Subsequently, cover plate 1 2 and cover plate 2 3 are rotated and opened by hand, and then the two damaged ink-absorbing sponges are taken out and replaced. After the replacement is completed, the staff rotates cover plate 1 2 and cover plate 2 3 by hand again and closes them. Then, the fixing assembly is used to fix the position of cover plate 1 2 and cover plate 2 3 so that they will not be opened. Under the action of the sealing gasket 13, ink leakage can be avoided.

[0055] Embodiment 2:

[0056] This embodiment provides an ink fountain for marking construction sites, which, in addition to the technical solutions of the above embodiments, also has the following technical features. The limit assembly includes:

[0057] A limiting groove 9 is provided in a limiting block 16, a slide groove 18 is provided in the ink fountain body 1 and on one side of the limiting block 16, a limiting block 6 is slidably installed in the slide groove 18, one end of the limiting block 6 contacts one side of the limiting block 16, the other end of the limiting block 6 passes through one side of the slide groove 18 and extends to the outside, a spring 19 is fixedly installed on one side of the limiting block 16 away from the limiting groove 9 and in the slide groove 18, and one end of the spring 19 is fixed to the inner wall of the slide groove 18.

[0058] When fixing, when the limit slot 9 is connected with the slide slot 18, under the action of the rebound force of the spring 2 19, the spring 2 19 will push the limit block 1 6 to move in the direction of the limit slot 9 until one end of the limit block 1 6 is inserted into the limit slot 9, so that the position of the limit block 2 16 can be fixed;

[0059] When releasing the fixation, the staff will manually move the limit block 6 to move the limit block 6 in the direction away from the limit groove 9. At this time, the spring 2 19 will be squeezed and will shrink until one end of the limit block 6 is completely pulled out of the limit groove 9 and enters the slide groove 18. At this time, the limit block 2 16 will be released.

[0060] Embodiment 3:

[0061] This embodiment provides an ink fountain for marking construction sites. In addition to the technical solutions of the above embodiments, it also has the following technical features: the slide groove 18 is connected to the power chamber 10, and one end of the limit block 6 is plugged into the limit groove 9.

[0062] Among them, it is ensured that one end of the limiting block 1 6 can be inserted into the limiting groove 9, so that the position of the limiting block 2 16 can be fixed.

[0063] Embodiment 4:

[0064] This embodiment provides an ink fountain for marking construction sites, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the fixing component includes:

[0065] Two threaded holes 14 are respectively opened on the cover plate 1 2 and the cover plate 2 3 , and the two threaded holes 14 are connected, and the same hand screw 4 is installed in the inner threads of the two threaded holes 14 .

[0066] The staff member turns the hand screw 4 by hand, and under the action of the thread, the hand screw 4 will rotate in the two threaded holes 14 and move upward until the hand screw 4 is completely moved out of the two threaded holes 14. At this time, the cover plate 1 2 and the cover plate 2 3 will be released, and then the cover plate 1 2 and the cover plate 2 3 are rotated by hand to open them;

[0067] The staff rotates cover plate 1 2 and cover plate 2 3 by hand and closes them, then vertically places the hand screw 4 just above one of the threaded holes 14, and then turns the hand screw 4 downward. Under the action of the thread, the hand screw 4 will move downward and enter the two threaded holes 14, thereby fixing the position of cover plate 1 2 and cover plate 2 3 so that they will not be opened.

[0068] Embodiment 5:

[0069] This embodiment provides an ink fountain for marking construction sites. In addition to the technical solutions of the above embodiments, it also has the following technical features: the lower end of the limit block 16 is plugged into the groove 15, and the pull rod 7 is slidably connected to the power chamber 10.

[0070] Among them, it is ensured that the lower end of the second limit block 16 can be inserted into the groove 15; and it is ensured that the pull rod 7 can slide in the power chamber 10.

[0071] Embodiment 6:

[0072] This embodiment provides an ink fountain for marking construction sites. In addition to the technical solutions of the above embodiments, it also has the following technical features: one end of the take-up roller 8 is rotatably connected to the power chamber 10, and the cross-sectional size of the through groove 12 is an inverted convex structure.

[0073] Therein, it is ensured that one end of the take-up roller 8 can rotate in the power chamber 10 .

[0074] Embodiment 7:

[0075] This embodiment provides an ink fountain for marking construction sites. In addition to the technical solutions of the above embodiments, it also has the following technical features: the two ends of the spring 17 are tightly welded to the inner wall of the power chamber 10 and the top of the limit block 2 16 respectively.

[0076] Among them, the structural stability of spring 17 is ensured.

[0077] Embodiment 8:

[0078] This embodiment provides an ink fountain for marking construction sites. In addition to the technical solutions of the above embodiments, it also has the following technical features: the limit block 16 and the pull rod 7 are an integrally formed structure.

[0079] The structural stability between the second limit block 16 and the pull rod 7 is ensured.

[0080] Working principle: during use, when it is necessary to mark the line, the staff lifts the pull rod 7 by hand, so that the pull rod 7 drives the limit block 2 16 to move upward in the power chamber 10. At this time, the spring 17 will be squeezed and will shrink until the lower end of the limit block 2 16 is completely pulled out of one of the grooves 15. During the upward displacement of the limit block 2 16, the limit groove 9 on the limit block 2 16 will be connected with the slide groove 18. At this time, under the action of the rebound force of the spring 2 19, the spring 2 19 will push the limit block 1 6 to move in the direction of the limit groove 9 until one end of the limit block 1 6 is inserted into the limit groove 9, thereby fixing the position of the limit block 2 16. Subsequently, the staff can pull the ink line wrapped around the take-up roller 8, and when the ink line is stretched, it will drive the take-up roller 8 to rotate. The thread take-up roller 8 will drive the rotary disk 11 to rotate. When the ink line is pulled out of the ink fountain body 1 by a suitable distance, the staff will manually move the limit block 6 to move the limit block 6 in the direction away from the limit slot 9. At this time, the spring 19 will be squeezed and will shrink until one end of the limit block 6 is completely pulled out of the limit slot 9 and enters the slide slot 18. Then, under the action of the rebound force of the spring 17, the spring 17 will push the limit block 16 to move downward until the lower end of the limit block 16 is inserted into the groove 15 directly below it, thereby fixing the position of the rotary disk 11 so that it will not rotate anymore. Then, the thread take-up roller 8 will also be limited, so that the ink line can no longer be stretched, ensuring that the ink line will not be stretched when the ink line is tightened for elastic line marking.

[0081] When the two ink-absorbing sponges in the ink fountain body 1 gradually weaken their elasticity due to repeated squeezing and need to be replaced, the staff member manually rotates the hand screw 4. Under the action of the thread, the hand screw 4 will rotate in the two threaded holes 14 and move upward until the hand screw 4 is completely moved out of the two threaded holes 14. At this time, the cover plate 1 2 and the cover plate 2 3 will be released. Subsequently, the cover plate 1 2 and the cover plate 2 3 are manually rotated and opened, and then the two damaged ink-absorbing sponges are taken out and replaced. After the replacement is completed, the staff member manually rotates the cover plate 1 2 and the cover plate 2 3 and closes them, and then places the hand screw 4 vertically above one of the threaded holes 14. Subsequently, the hand screw 4 is turned downward. Under the action of the thread, the hand screw 4 will move downward and enter the two threaded holes 14, thereby fixing the position of the cover plate 1 2 and the cover plate 2 3 so that they will not be opened. Under the action of the sealing gasket 13, ink seepage can be prevented.

[0082] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An ink fountain for marking construction sites, comprising an ink fountain body (1), wherein a take-up roller (8) is rotatably mounted in the inner cavity of the ink fountain body (1), characterized in that: Also includes: A power chamber (10) is provided in the ink fountain body (1) and is located on one side of the take-up roller (8). A turntable (11) is rotatably installed in the power chamber (10). The turntable (11) is provided with a plurality of grooves (15) distributed in an annular shape and at equal intervals. A second limit block (16) is slidably installed in the power chamber (10) and located on the top of the turntable (11). The lower end of the second limit block (16) extends into the groove (15). The top of the second limit block (16) is fixed. A pull rod (7) is installed, and the upper end of the pull rod (7) passes through the top of the power chamber (10) and extends to the outside. A spring (17) is sleeved on the pull rod (7) in the power chamber (10). One end of the wire-receiving roller (8) passes through one side of the inner cavity of the ink fountain body (1) and extends into the power chamber (10). One end of the wire-receiving roller (8) is coaxially connected to a rotating disk (11). One end of the rotating disk (11) passes through one side of the power chamber (10) and extends to the outside and is fixedly installed with a rocker (5). A limiting component, the limiting component is located in the ink fountain body (1) and is used to limit the position of the second limiting block (16); A through groove (12), the through groove (12) being arranged at the top of the second cavity in the ink fountain body (1), a sealing gasket (13) being fixedly installed in the through groove (12), a cover plate 1 (2) and a cover plate 2 (3) being rotatably installed on the inner wall of the through groove (12) and located on the top of the sealing gasket (13), and one end of the cover plate 2 (3) being located on the top of one end of the cover plate 1 (2); A fixing assembly is located in the second cover plate (3) and is used to fix the first cover plate (2) and the second cover plate (3).

2. The ink fountain for marking construction sites according to claim 1, characterized in that: The limiting component comprises: A limit groove (9), wherein the limit groove (9) is provided in the limit block 2 (16), a slide groove (18) is provided in the ink fountain body (1) and located on one side of the limit block 2 (16), a limit block 1 (6) is slidably installed in the slide groove (18), one end of the limit block 1 (6) contacts one side of the limit block 2 (16), the other end of the limit block 1 (6) passes through one side of the slide groove (18) and extends to the outside, a spring 2 (19) is fixedly installed on the side of the limit block 2 (16) away from the limit groove (9) and located in the slide groove (18), and one end of the spring 2 (19) is fixed to the inner wall of the slide groove (18).

3. The ink fountain for marking construction sites according to claim 2, characterized in that: The slide groove (18) is connected to the power chamber (10), and one end of the limit block (6) is plugged into and matched with the limit groove (9).

4. The ink fountain for marking construction sites according to claim 1, characterized in that: The fixing assembly comprises: Two threaded holes (14), the two threaded holes (14) are respectively opened on the cover plate 1 (2) and the cover plate 2 (3), and the two threaded holes (14) are connected, and the same hand screw (4) is installed in the internal threads of the two threaded holes (14).

5. The ink fountain for marking construction sites according to claim 1, characterized in that: The lower end of the second limit block (16) is plugged into the groove (15), and the pull rod (7) is slidably connected to the power chamber (10).

6. The ink fountain for marking construction sites according to claim 1, characterized in that: One end of the wire take-up roller (8) is rotatably connected to the power chamber (10), and the cross-sectional dimension of the through groove (12) is an inverted convex structure.

7. The ink fountain for marking construction sites according to claim 1, characterized in that: The two ends of the spring 1 (17) are respectively tightly welded to the inner wall of the power chamber (10) and the top of the limit block 2 (16).

8. The ink fountain for marking construction sites according to claim 1, characterized in that: The second limit block (16) and the pull rod (7) are an integrally formed structure.

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