Saucer filling machine
By using a sauce filling machine with a roller scraper and inner lining, combined with the synchronous action of the push plate and sealing plate and the cleaning component, the problems of unstable conveying volume and difficult cleaning are solved, and the consistency of sauce filling and the hygiene of the equipment are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU DINGWEI FOOD TECHNOLOGY CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-14
AI Technical Summary
Existing sauce filling machines have unstable conveying capacity during the conveying process, resulting in large differences in the amount filled in a single batch, which affects product consistency. In addition, it is difficult to clean the residual sauce inside the equipment, which affects the hygiene of the equipment and the quality of the product.
The system uses a circular roller with an outer scraper that works in conjunction with the inner lining of the canning box to precisely control the amount of sauce. The pusher and sealing plates move synchronously to ensure consistent filling volume each time. The cleaning component uses a water pump to clean the inside of the canning box, and the hydraulic drive structure improves filling efficiency and equipment hygiene.
It enables precise control of the amount filled each time, reduces sauce residue, improves equipment hygiene and filling efficiency, and ensures product consistency and quality.
Smart Images
Figure CN224491589U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food processing equipment technology, specifically to a sauce filling machine. Background Technology
[0002] The existing sauce filling machine has the following technical problems in use:
[0003] During the sauce conveying process, due to the high viscosity of the sauce, the conveying volume is prone to instability, resulting in large differences in the amount of each can and affecting product consistency.
[0004] Sauce residue can easily remain inside the equipment (such as the conveying channel and filling cavity), making cleaning difficult. This not only affects the hygiene of the equipment but may also cause the residual sauce to deteriorate and affect the quality of subsequent canned products. Utility Model Content
[0005] In view of the above-mentioned technical problems, this application solves the problem of unstable delivery volume in the prior art.
[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: a sauce filling machine, including a filling box, the filling box including a filling box body, the top opening of the filling box body is provided with a top cover and a flap, the top cover is located on the left side of the flap and is hinged to each other;
[0007] The bottom of the can body has a strip-shaped output port, and the front and rear inner walls of the strip-shaped output port have strip-shaped slots. The interior of the can body has a rotating shaft. One end of the rotating shaft is rotatably connected to the inner wall of the right side of the can body, and the other end of the rotating shaft extends out through a first through hole on the left side wall of the can body. The rotating shaft and the first through hole are rotatably connected to each other by a sealed bearing. A circular roller is provided on the outside of the rotating shaft. The motor is located on the outer wall of the left side of the can body, and the output end of the motor is connected to the other end of the rotating shaft through a coupling.
[0008] The bottom of the can body is provided with a compression chamber communicating with the strip-shaped output port. A push plate is slidably arranged in the compression chamber. A push rod is provided on the left side of the push plate. The push rod extends out of a second through hole opened on the left side wall of the compression chamber. A sealing plate is arranged above the push rod. The sealing plate is slidably inserted into the strip-shaped slot. The left side of the sealing plate is vertically flush with the left end face of the push rod and they are fixedly connected to each other by a vertical plate. A U-shaped head is integrally formed on the right side of the sealing plate. The U-shaped head and the push plate are in a convex-concave fit. A sealing strip is provided between the lower surface of the U-shaped head and the corresponding surface of the push plate. An output pipe is connected to the right side of the compression chamber. A valve for opening and closing is provided on the output pipe.
[0009] A hydraulic telescopic rod is arranged on the left front side of the compression chamber. The hydraulic telescopic rod drives the vertical plate to move along the left and right sides through the connecting plate.
[0010] To better realize this utility model, the compression chamber is further disposed on the upper surface of the first base plate, and a second base plate is arranged on the same horizontal plane to the left of the first base plate.
[0011] The hydraulic telescopic rod includes a hydraulic telescopic rod body, which is disposed on the upper surface of the second base plate. The left side of the hydraulic telescopic rod body has a telescopic end, and the end of the telescopic end is fixedly disposed on the right side of the front end of the connecting plate. The right side of the rear end of the connecting plate is fixedly connected to the upright plate.
[0012] To better realize this utility model, the inner walls of the front and rear of the can body are respectively provided with linings, and the outer peripheral wall of the roller is provided with a plurality of scrapers arranged at equal intervals along the circumferential direction. The bottom of the lining and the top of the scrapers are in line contact with each other, and the top of the scrapers is in line contact with the inner peripheral wall of the can body located below the lining.
[0013] To better realize this utility model, the auxiliary component further includes a frame, a water tank is provided inside the frame, a support plate is provided on the left front side of the top of the frame, a dust cover is provided on the frame below the water tank, the push rod, the portion of the sealing plate that slides out of the compression chamber, the upright plate, the connecting plate, the hydraulic telescopic rod and the second base plate are all located inside the dust cover, and the bottom surface of the second base plate is fixedly connected to the inner bottom surface of the dust cover.
[0014] To better realize this utility model, a second relief groove is further provided on the right end face of the dustproof shell;
[0015] Two parallel crossbars are provided on the right side of the top of the frame. The can body is arranged between the two crossbars. The front and rear outer walls of the top of the can body are fixedly connected to the corresponding crossbars. A second support column is provided at the right end of the crossbar. The left end of the compression chamber extending to the left of the first bottom plate is placed in the second relief groove and is detachably connected. The right end of the first bottom plate is detachably connected to the middle section of the two second support columns.
[0016] To better realize this utility model, a first relief groove is further provided on the right side wall of the water storage tank, and the motor is placed in the first relief groove.
[0017] To better realize this utility model, a cleaning connection hole is further provided on the front side of the top of the can body;
[0018] The cleaning assembly includes a water pump, which is disposed on the upper surface of the support plate. The input end of the water pump is provided with a water inlet pipe, the end of which is placed inside the water storage tank. The output end of the water pump is provided with a water outlet pipe, the end of which is connected to the cleaning connection hole.
[0019] The technical solution provided by this utility model has the following advantages compared with the prior art:
[0020] 1. In this utility model, the amount of sauce falling into the compression chamber at one time is precisely controlled by the cooperation of the scraper on the outer periphery of the roller and the inner lining of the canning box. With the synchronous action of the push plate and the sealing plate, the canning amount is consistent each time, which solves the problem of unstable conveying volume.
[0021] 2. In this utility model, a cleaning component is provided. A water pump sends clean water into the filling box, and the rotating roller can clean the inside of the filling box, the scraper and the roller. When the clean water is discharged through the compression chamber and the output pipe, the relevant parts are cleaned at the same time, reducing residue, improving the hygiene of the equipment, and solving the problem of difficult cleaning.
[0022] 3. In this utility model, the U-shaped head of the sealing plate and the push plate are convex and concave and are provided with a sealing strip. When they move synchronously, they can effectively seal the strip-shaped output port to prevent sauce leakage. At the same time, the hydraulically driven synchronous structure improves the filling efficiency. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0025] Figure 2 for Figure 1 The front view;
[0026] Figure 3 for Figure 1 Rear view;
[0027] Figure 4 This is a structural diagram of the canning box and the hydraulic telescopic rod.
[0028] Figure 5 for Figure 4 half section Figure 1 ;
[0029] Figure 6 for Figure 5 Enlarged view of point A in the middle;
[0030] Figure 7 for Figure 4 half section Figure 2 ;
[0031] Figure 8 This is a schematic diagram of the auxiliary component.
[0032] Figure 9 for Figure 8 The front view;
[0033] Figure 10 This is a schematic diagram of the cleaning component.
[0034] Figure reference numerals: 100-Canning box; 200-Hydraulic telescopic rod; 300-Auxiliary component; 400-Cleaning component; 101-Canning box body; 102-Top cover; 103-Flip plate; 104-Strip outlet; 105-Strip slot; 106-Shaft; 107-Roller; 108-Motor; 109-Coupling; 110-Compression chamber; 111-Push plate; 112-Push rod; 113-Sealing plate; 114-Connecting plate; 115-Output pipe; 116-Valve; 117-Cleaning connector 118 - Connecting hole; 119 - First base plate; 120 - Second base plate; 121 - Liner; 122 - Scraper; 123 - U-shaped head; 124 - Sealing strip; 201 - Hydraulic telescopic rod body; 202 - Telescopic end; 301 - Frame; 302 - Water tank; 303 - Support plate; 304 - Dustproof outer shell; 305 - First support column; 306 - Crossbar; 307 - Second support column; 308 - First relief groove; 309 - Second relief groove; 401 - Water pump; 402 - Inlet pipe; 403 - Outlet pipe. Detailed Implementation
[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0036] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0038] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0039] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.
[0040] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0041] Example 1
[0042] like Figures 1 to 10 As shown, a sauce filling machine includes a filling box 100, the filling box 100 includes a filling box body 101, the top opening of the filling box body 101 is provided with a top cover 102 and a flap 103, the top cover 102 is located on the left side of the flap 103 and is hinged to each other.
[0043] The bottom of the can body 101 is provided with a strip-shaped output port 104. The front and rear inner walls of the strip-shaped output port 104 are provided with strip-shaped slots 105. The interior of the can body 101 is provided with a rotating shaft 106. One end of the rotating shaft 106 is rotatably connected to the inner wall of the right side of the can body 101. The other end of the rotating shaft 106 extends out through a first through hole on the left side wall of the can body 101. The rotating shaft 106 and the first through hole are rotatably connected to each other by a sealed bearing. A roller 107 is provided on the outside of the rotating shaft 106. The motor 108 is located on the outer wall of the left side of the can body 101. The output end of the motor 108 is connected to the other end of the rotating shaft 106 through a coupling 109.
[0044] The bottom of the can body 101 is provided with a compression chamber 110 communicating with the strip-shaped output port 104. A push plate 111 is slidably disposed in the compression chamber 110. A push rod 112 is disposed on the left side of the push plate 111. The push rod 112 extends out of a second through hole opened on the left side wall of the compression chamber 110. A sealing plate 113 is arranged above the push rod 112. The sealing plate 113 is slidably inserted into the strip-shaped slot 105. The left side of the sealing plate 113 is adjacent to the push rod. The left end face of 112 is vertically flush and fixedly connected to each other by a vertical plate. The right side face of the sealing plate 113 is integrally formed with a U-shaped head 122, and the U-shaped head 122 and the push plate 111 are in a convex-concave fit. A sealing strip 123 is provided between the lower surface of the U-shaped head 122 and the corresponding surface of the push plate 111. The right side of the compression chamber 110 is connected to an output pipe 115, and a valve 116 for opening and closing is provided on the output pipe 115.
[0045] A hydraulic telescopic rod 200 is arranged on the left front side of the compression chamber 110. The hydraulic telescopic rod 200 drives the upright plate to move along the left and right sides through the connecting plate 114.
[0046] like Figures 1 to 10 As shown, in this embodiment, the compression chamber 110 is disposed on the upper surface of the first base plate 118, and a second base plate 119 is arranged on the same horizontal plane to the left of the first base plate 118.
[0047] The hydraulic telescopic rod 200 includes a hydraulic telescopic rod body 201, which is disposed on the upper surface of the second base plate 119. The left side of the hydraulic telescopic rod body 201 has a telescopic end 202, and the end of the telescopic end 202 is fixedly disposed on the right side of the front end of the connecting plate 114. The right side of the rear end of the connecting plate 114 is fixedly connected to the upright plate.
[0048] like Figures 1 to 10As shown, in this embodiment, the front and rear inner walls of the can body 101 are respectively provided with inner liners 120, and the outer peripheral wall of the roller 107 is provided with a plurality of scrapers 121 arranged at equal intervals along the circumferential direction. The bottom of the inner liner 120 and the top of the scraper 121 are in line contact with each other, and the top of the scraper 121 and the inner peripheral wall of the can body 101 located below the inner liner 120 are in line contact with each other.
[0049] like Figures 1 to 10 As shown, in this embodiment, the auxiliary component 300 includes a frame 301, a water tank 302 is disposed inside the frame 301, a support plate 303 is disposed on the left front side of the top of the frame 301, and a dust cover 304 is disposed on the frame 301 below the water tank 302. The push rod 112, the portion of the sealing plate 113 that slides out of the compression chamber 110, the upright plate, the connecting plate 114, the hydraulic telescopic rod 200, and the second bottom plate 119 are all located inside the dust cover 304, and the bottom surface of the second bottom plate 119 is fixedly connected to the inner bottom surface of the dust cover 304.
[0050] like Figures 1 to 10 As shown, in this embodiment, a second recessed groove 309 is provided on the right end face of the dustproof housing 304;
[0051] Two parallel crossbars 306 are provided on the right side of the top of the frame 301. The can body 101 is positioned between the two crossbars 306, and the front and rear outer walls of the top of the can body 101 are fixedly connected to one of the corresponding crossbars 306. A second support column 307 is provided at the right end of the crossbar 306. The compression chamber 110 extends to the left, and the left end of the first base plate 118 is placed in the second relief groove 309 and is detachably connected (e.g., bolted connection, with connecting ears provided at the positions between them, and bolt holes opened on the connecting ears, and the bolt holes on the two connecting ears are connected by bolts and nuts). The right end face of the first base plate 118 is detachably connected to the middle section of the two second support columns 307 (e.g., bolted connection, with connecting ears provided at the positions between them, and bolt holes opened on the connecting ears, and the bolt holes on the two connecting ears are connected by bolts and nuts).
[0052] like Figures 1 to 10 As shown, in this embodiment, a first recess groove 308 is provided on the right side wall of the water storage tank 302, and the motor 108 is placed in the first recess groove 308.
[0053] like Figures 1 to 10 As shown, in this embodiment, a cleaning connection hole 117 is provided on the front side of the top of the can body 101;
[0054] The cleaning assembly 400 includes a water pump 401, which is disposed on the upper surface of the support plate 303. The input end of the water pump 401 is provided with a water inlet pipe 402, the end of which is placed inside the water storage tank 302. The output end of the water pump 401 is provided with a water outlet pipe 403, the end of which is connected to the cleaning connection hole 117.
[0055] In addition, a cleaning window with an opening and closing function can be provided on the rear side of the dust cover 304 to facilitate cleaning of the inside of the dust cover 304.
[0056] Working principle:
[0057] The operator places the prepared sauce into the can body 101 through the top opening (during this process, the flap 103 is open). The sauce falls onto the outer surface of the roller 107 and the scraper 121. Then, the motor 108 is started, and the roller 107 and the scraper 121 drive a portion of the sauce to rotate and move it to the strip-shaped output port 104. Under the action of gravity, it enters the compression chamber 110. The motor 108 is stopped, and then the hydraulic telescopic rod body 201 is started, causing the telescopic end to extend... 202 retracts to the right, causing the upright plate, push rod 112, and sealing plate 113 to move synchronously to the right. At this time, the sealing plate 113 slides within the strip slot 105 and gradually closes the strip output port 104. Simultaneously, push rod 112 drives push plate 111 to move to the right. Push plate 111 pushes the sauce inside compression chamber 110 to move to the right. Since the U-shaped head 122 is always located on the upper right side of push plate 111, and the total amount of sauce falling into compression chamber 110 each time... The amount of sauce is determined by the outer peripheral wall of the roller 107, the distance between the two scrapers 121, and their corresponding areas. The total amount of sauce is determined by the operator through multiple trials when designing the filling machine. Of course, more sauce can be added. Even if some sauce is pushed to the area above 122 during the extrusion process, the amount of sauce inside 110 is sufficient to ensure that there is enough sauce for the final filling. During the pushing process of the pusher plate 111, it is always below the U-shaped head 122. Therefore, the U-shaped head 122 closes the strip output port 104, and the pusher plate 111 pushes the sauce into the output pipe 115. Finally, the sauce is squeezed out from the output end of the output pipe 115 and discharged into the corresponding packaging bag. (During this process, the valve 116 is in the open state. Due to the rapid reduction of the volume in the compression chamber 110, the sauce will quickly enter the output pipe 115. After each filling, a small amount of sauce remains in the output pipe 115. After the last filling, it can be cleaned.)
[0058] After filling is complete, the water pump 401 is started, and the inlet pipe 402 draws in clean water from the water storage tank 302. The water then flows through the pump 401 into the outlet pipe 403, and then into the filling box body 101. The motor 108 is started, causing the roller 107 to rotate continuously and be cleaned by the falling water from above. The clean water then enters the compression chamber 110 through the strip outlet 104 to clean the inside of the compression chamber 110. The clean water then cleans the outlet pipe 115 and valve 116, and finally discharges the contents. (During this process, the push plate 111 is located in the compression chamber 110.) At the leftmost position inside 0 (111 is surrounded by a sealing strip, which divides 110 into two independent cavities whose volumes can change with the movement of 111, namely the left cavity and the right cavity; the right cavity is used to hold sauces, and water cannot enter the left cavity; an exhaust vent can be set on the left side wall of the left cavity), a cleaning window can also be opened, allowing operators to clean the push rod 112 and the sealing plate 113 with a damp towel. After cleaning, the output end of 115 can be connected to the external hot air drying device.
[0059] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A sauce filling machine, comprising a filling box (100), a motor (108), auxiliary components (300), and a cleaning component (400), characterized in that: The canister (100) includes a canister body (101), and the top opening of the canister body (101) is provided with a top cover (102) and a flap (103). The top cover (102) is located on the left side of the flap (103) and is hinged to each other. The bottom of the can body (101) is provided with a strip-shaped output port (104). The front and rear inner walls of the strip-shaped output port (104) are provided with strip-shaped slots (105). The interior of the can body (101) is provided with a rotating shaft (106). One end of the rotating shaft (106) is rotatably connected to the inner wall of the right side of the can body (101). The other end of the rotating shaft (106) extends out of the first through hole on the left side wall of the can body (101). The rotating shaft (106) and the first through hole are rotatably connected to each other by a sealed bearing. A circular roller (107) is provided on the outside of the rotating shaft (106). The motor (108) is located on the outer wall of the left side of the can body (101). The output end of the motor (108) is connected to the other end of the rotating shaft (106) through a coupling (109). The bottom of the canister body (101) is provided with a compression chamber (110) communicating with the strip outlet (104). A push plate (111) is slidably arranged in the compression chamber (110). A push rod (112) is provided on the left side of the push plate (111). The push rod (112) extends out of a second through hole opened on the left side wall of the compression chamber (110). A sealing plate (113) is arranged above the push rod (112). The sealing plate (113) is slidably inserted into the strip slot (105). The left side of the sealing plate (113) is connected to the strip outlet (105). The left end face of the push rod (112) is vertically flush and fixedly connected to each other by a vertical plate. The right side face of the sealing plate (113) is integrally formed with a U-shaped head (122), and the U-shaped head (122) and the push plate (111) are in a convex-concave fit. A sealing strip (123) is provided between the lower surface of the U-shaped head (122) and the corresponding surface of the push plate (111). The right side of the compression chamber (110) is connected to an output pipe (115), and a valve (116) for opening and closing is provided on the output pipe (115). A hydraulic telescopic rod (200) is arranged on the left front side of the compression chamber (110). The hydraulic telescopic rod (200) drives the upright plate to move along the left and right sides through the connecting plate (114).
2. The sauce filling machine according to claim 1, characterized in that: The compression chamber (110) is disposed on the upper surface of the first base plate (118), and a second base plate (119) is disposed on the same horizontal plane to the left of the first base plate (118). The hydraulic telescopic rod (200) includes a hydraulic telescopic rod body (201), which is disposed on the upper surface of the second base plate (119). The left side of the hydraulic telescopic rod body (201) has a telescopic end (202), and the end of the telescopic end (202) is fixedly disposed on the right side of the front end of the connecting plate (114). The right side of the rear end of the connecting plate (114) is fixedly connected to the upright plate.
3. A sauce filling machine according to claim 2, characterized in that: The front and rear inner walls of the can body (101) are respectively provided with linings (120), and the outer peripheral wall of the roller (107) is provided with a plurality of scrapers (121) arranged at equal intervals along the circumferential direction. The bottom of the lining (120) and the top of the scraper (121) are in line contact with each other, and the top of the scraper (121) is in line contact with the inner peripheral wall of the can body (101) located below the lining (120).
4. A sauce filling machine according to claim 2, characterized in that: The auxiliary component (300) includes a frame (301), a water tank (302) is provided inside the frame (301), a support plate (303) is provided on the left front side of the top of the frame (301), a dust cover (304) is provided at the position of the frame (301) below the water tank (302), the push rod (112), the part of the sealing plate (113) that slides out of the compression chamber (110), the upright plate, the connecting plate (114), the hydraulic telescopic rod (200) and the second bottom plate (119) are all located inside the dust cover (304), and the bottom surface of the second bottom plate (119) is fixedly connected to the inner bottom surface of the dust cover (304).
5. A sauce filling machine according to claim 4, characterized in that: The right end face of the dustproof housing (304) is provided with a second relief groove (309). Two parallel crossbars (306) are provided on the right side of the top of the frame (301). The can body (101) is arranged between the two crossbars (306). The front and rear outer walls of the top of the can body (101) are fixedly connected to the corresponding crossbar (306). A second support column (307) is provided at the right end of the crossbar (306). The left end of the compression chamber (110) extending to the left of the first bottom plate (118) is placed in the second relief groove (309) and is detachably connected. The right end of the first bottom plate (118) is detachably connected to the middle section of the two second support columns (307).
6. A sauce filling machine according to claim 5, characterized in that: A first recess (308) is provided on the right side wall of the water storage tank (302), and the motor (108) is placed in the first recess (308).
7. A sauce filling machine according to claim 6, characterized in that: A cleaning connection hole (117) is provided on the front side of the top of the can body (101). The cleaning assembly (400) includes a water pump (401), which is disposed on the upper surface of the support plate (303). The input end of the water pump (401) is provided with a water inlet pipe (402), the end of which is placed inside the water storage tank (302). The output end of the water pump (401) is provided with a water outlet pipe (403), the end of which is connected to the cleaning connection hole (117).