A water squeezing device for a collodion working head

Abstract

The present invention provides a water squeezing device for a collodion working head, which belongs to the field of cleaning technology. It solves the problem that the types and number of water squeezing methods of the existing collodion working head water squeezing device are insufficient. The collodion working head water squeezing device comprises a base, an upper pressing piece, a lifting frame, a lever assembly and a lower pressing plate, wherein the upper pressing piece is located above the lower pressing plate; the lifting frame is connected to the base through a first guide structure, the lifting frame can be lifted and moved, the upper pressing piece is connected to the lifting frame, and the upper pressing piece is lifted and moved with the lifting frame; the lever assembly is connected to the lifting frame, the base and the lower pressing plate, and when the lower pressing plate moves downward, the lever assembly can reduce the distance between the upper pressing piece and the lower pressing plate. The collodion working head is placed horizontally on the lower pressing plate, and the collodion working head is pushed to move downward, and the distance between the upper pressing piece and the lower pressing plate is reduced, and the torque ratio of the lever assembly is controlled, so that the force of the upper pressing piece pressing on the collodion working head is greater than the force applied by people on the collodion working head, which has the advantage of saving effort.

Description

Technical Field

[0001] The invention belongs to the technical field of cleaning, and relates to a water squeezing device, in particular to a water squeezing device for a collodion working head. Background Art

[0002] Collodion is widely used in daily necessities, such as collodion mops and collodion window cleaners. Collodion has both excellent water-squeezing self-cleaning function and strong water absorption, which can fully meet the cleaning needs of the working head.

[0003] Taking the collodion mop as an example, the squeezing method of the collodion working head is described. The traditional collodion mop working head mainly uses roller shaft squeezing and plate squeezing. With the development of society, people have proposed a variety of squeezing methods, such as the collodion flat mop squeezing device recorded in the Chinese patent literature (application publication number CN108030456A), which uses a foot pedal to drive the pressure plate, and the pressure plate squeezes the collodion working head to achieve the squeezing operation. Another example is the collodion mop squeezing device and the collodion mop cleaning bucket with squeezing device (application publication number CN107854078A), when the collodion mop slides downward, the squeezing roller squeezes the collodion working head to achieve the squeezing operation. And the mop wiping object squeezing device and mop cleaning bucket (application publication number CN110151081A) proposed by the inventor, when the collodion mop is lifted, the squeezing roller squeezes the collodion working head, which not only achieves the squeezing operation, but also takes out the collodion mop.

[0004] Those skilled in the art hope to propose more collodion working head water squeezing devices with different operation modes to meet the needs of different consumers with different usage habits. Summary of the invention

[0005] The present invention provides a water squeezing device for a collodion working head. The technical problem to be solved by the present invention is how to provide a water squeezing device for a collodion working head with another operation mode.

[0006] The technical problem to be solved by the present invention can be achieved through the following technical solutions: a water squeezing device for a rubber cotton working head, comprising a base, an upper pressure piece and a lower pressure plate, the upper pressure piece being located above the lower pressure plate; characterized in that the water squeezing device for the rubber cotton working head also includes a lifting frame and a lever assembly, the lifting frame is connected to the base through a first guide structure, the lifting frame can be lifted and moved, the upper pressure piece is connected to the lifting frame, and the upper pressure piece is lifted and moved with the lifting frame; the lever assembly is connected to the lifting frame, the base and the lower pressure plate, and when the lower pressure plate moves downward, the lever assembly can reduce the distance between the upper pressure piece and the lower pressure plate.

[0007] When the water squeezing operation is performed using the rubber cotton working head squeezing device, the rubber cotton working head is placed horizontally between the lower pressure plate and the upper pressure piece. People usually push the rubber cotton working head downward, and the rubber cotton working head pushes the lower pressure plate downward. Under the linkage action of the lever assembly, the lifting frame is driven to move downward, and the lifting frame drives the upper pressure piece to move downward synchronously. The downward movement speed of the lifting frame is greater than the downward movement speed of the lower pressure plate, so that the distance between the upper pressure piece and the lower pressure plate is reduced. And by controlling the torque ratio of the lever assembly, the downward working force of the lifting frame is greater than the downward working force of the lower pressure plate, that is, the force of the upper pressure piece pressing on the rubber cotton working head is greater than the force applied by people to the rubber cotton working head. In summary, the rubber cotton working head squeezing device can deform the rubber cotton working head by clamping, forcing the water in the rubber cotton working head to be squeezed out, and realize the water squeezing operation. At the same time, the rubber cotton working head squeezing device has an operation mode different from the existing operation mode, and the rubber cotton working head squeezing device has the advantage of labor saving.

[0008] In the above-mentioned collodion working head water squeezing device, the lower pressing plate is connected to the base via a second guide structure or the lower pressing plate is connected to the lifting frame via a third guide structure.

[0009] In the above-mentioned collodion working head water squeezing device, the upper pressure piece includes a front pressure rod and a rear pressure rod located on one side of the front pressure rod, a water squeezing space is formed between the upper pressure piece and the lower pressure plate, and an avoidance space communicating with the water squeezing space is formed between the front pressure rod and the rear pressure rod.

[0010] In the above-mentioned collodion working head water squeezing device, the front pressure rod and the rear pressure rod of the upper pressure piece are connected to the lifting frame through a connecting rod, and the lower end of the connecting rod is rotationally connected to the lifting frame through a first rotating shaft.

[0011] In the above-mentioned collodion working head water squeezing device, the front pressure rod and the lower pressure plate and / or the rear pressure rod and the lower pressure plate are connected by a linkage structure. When the lower pressure plate moves downward, the linkage structure can reduce the distance between the front pressure rod and the rear pressure rod.

[0012] In the above-mentioned collodion working head water squeezing device, the linkage structure includes a toggle head and a swing control surface for the toggle head to rely on, the toggle head is fixedly connected to the lower pressure plate, and the toggle head is located outside the swing control surface; the swing control surface is located on the connecting rod.

[0013] In the above-mentioned collodion working head water squeezing device, the swing control surface is an inclined surface or the lower area is concave relative to the upper area.

[0014] In the above-mentioned collodion working head water squeezing device, a first roller is rotatably connected to the moving head.

[0015] In the above-mentioned collodion working head water squeezing device, a horizontal slide groove is provided on the lifting frame, and the ends of the front pressure rod and the rear pressure rod are embedded in the horizontal slide groove.

[0016] In the above-mentioned collodion working head water squeezing device, the front pressure rod and the base and / or the rear pressure rod and the base are connected by a linkage structure, and the linkage structure can reduce the distance between the front pressure rod and the rear pressure rod when the lifting frame moves downward.

[0017] In the above-mentioned collodion working head water squeezing device, the linkage structure includes a toggle head fixedly connected to the front pressure rod and / or the rear pressure rod, a linkage control slide groove is opened on the base, and the toggle head is embedded in the linkage control slide groove.

[0018] In the above-mentioned collodion working head water squeezing device, the linkage control slide groove includes a vertical section and an inclined section located above the vertical section.

[0019] In the above-mentioned collodion working head water squeezing device, the lever assembly is located below the lower pressing plate.

[0020] In the above-mentioned collodion working head water squeezing device, a mounting slot is provided in the lifting frame, and the top of the lever assembly is located in the mounting slot.

[0021] In the above-mentioned collodion working head water squeezing device, the lever assembly includes two levers, and the two levers are symmetrically arranged relative to the vertical center plane of the lower pressing plate.

[0022] In the above-mentioned rubber cotton working head water squeezing device, the lower end of the lever is rotatably connected to the bottom of the base through a second rotating shaft, the top end of the lever can abut against the bottom surface of the lower pressure plate, a fulcrum rotating shaft is installed on the lever, and a fulcrum slide groove is opened on the lifting frame, and the fulcrum rotating shaft is embedded in the fulcrum slide groove.

[0023] In the above-mentioned rubber cotton working head water squeezing device, one lever is called the left lever, and the other lever is called the right lever; a rack is connected to the fulcrum shaft connected to the left lever and the fulcrum shaft connected to the right lever, a guide sleeve is fixed on the lifting frame, and the two racks are both inserted into the guide sleeve, and the two racks are arranged in parallel; a synchronous gear is rotatably connected to the lifting frame, and the two racks are meshed with the synchronous gear.

[0024] In the above-mentioned collodion working head water squeezing device, the distance between the center line of the second rotating shaft and the center line of the fulcrum rotating shaft is L1, the distance between the abutment line between the second roller and the lower pressure plate and the center line of the fulcrum rotating shaft is L2, and the value of L1:L2 is greater than 1.

[0025] In the above-mentioned collodion working head water squeezing device, the top of the lever is rotatably connected to a second roller, and the wheel surface of the second roller abuts against the bottom surface of the lower pressing plate.

[0026] In the above-mentioned collodion working head water squeezing device, a first limiting sliding groove is opened on the bottom surface of the lower pressing plate, and the second roller is embedded in the first limiting sliding groove.

[0027] In the above-mentioned rubber cotton working head water squeezing device, the two levers are cross-arranged, the lower end of the lever can be abutted against the bottom of the base, the top end of the lever has a hinged shaft, the hinged shaft is rotatably connected to the lifting frame, and the lever has a fulcrum shaft, the fulcrum shaft is located between the hinged shaft and the lower end, and the fulcrum shaft can be abutted against the bottom surface of the lower pressure plate.

[0028] In the above-mentioned cotton wool working head water squeezing device, a vertically arranged synchronous slide groove is provided on the lifting frame, the left lever and the right lever are connected by a synchronous rotating shaft, and the synchronous rotating shaft is embedded in the synchronous slide groove; the shaft hole in the lifting frame that is rotatably connected to the fulcrum shaft is strip-shaped.

[0029] In the above-mentioned collodion working head water squeezing device, the distance between the top of the lever and the abutment line between the third roller and the bottom of the barrel body is L3, and the distance between the top of the lever and the abutment line between the fourth roller and the bottom of the lower pressure plate is L4, and the value of L3:L4 is greater than 1.

[0030] In the above-mentioned collodion working head water squeezing device, the lower end of the lever is rotatably connected to a third roller.

[0031] In the above-mentioned collodion working head water squeezing device, the base has an inner cavity, a second limiting sliding groove is opened on the bottom surface of the base, and the third roller is embedded in the second limiting sliding groove.

[0032] In the above-mentioned collodion working head water squeezing device, the fulcrum shaft of the lever is rotatably connected to a fourth roller.

[0033] In the above-mentioned collodion working head water squeezing device, the collodion working head water squeezing device also includes a state maintaining structure for maintaining the lower pressing plate to be located at the uppermost position.

[0034] In the above-mentioned collodion working head water squeezing device, the state maintaining structure includes a second spring, one end of the second spring abuts against the lifting frame, one second spring abuts against the front pressure rod, and another second spring abuts against the rear pressure rod.

[0035] In the above-mentioned collodion working head water squeezing device, the base includes two vertical plates, the lifting frame is located between the two vertical plates, the first guide structure includes a vertically arranged guide groove, each vertical plate has a guide groove, and both ends of the lifting frame have a first guide block portion embedded in the guide groove.

[0036] In the above-mentioned collodion working head water squeezing device, the state maintaining structure includes a protrusion located on the bottom surface of the guide groove and a state maintaining member connected to the lifting frame, and the state maintaining member can be clamped on the protrusion.

[0037] In the above-mentioned collodion working head water squeezing device, the state maintaining member is a slider, a guide hole is opened on the end face of the lifting frame, the slider is embedded in the guide hole, and a first spring is provided between the slider and the lifting frame. Under the elastic force of the first spring, the slider always rests on the bottom surface of the guide groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a three-dimensional structural schematic diagram of the water squeezing device of the collodion working head in the first embodiment.

[0039] Figure 2 and Figure 3 It is a three-dimensional structural schematic diagram of different viewing angles of the water squeezing device of the collodion working head in the first embodiment in the initial state of water squeezing.

[0040] Figure 4 It is a cross-sectional structural schematic diagram of the water squeezing device of the collodion working head in the first embodiment in the initial state of water squeezing.

[0041] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure of AA.

[0042] Figure 6 yes Figure 5 Schematic diagram of the cross-sectional structure of BB.

[0043] Figure 7 yes Figure 6 A magnified view of the local structure.

[0044] Figure 8 It is a three-dimensional structural schematic diagram of the collodion working head in the first embodiment being placed in the collodion working head water squeezing device and being in the initial state of water squeezing.

[0045] Fig. 9 It is a three-dimensional structural schematic diagram of the water squeezing device of the collodion working head in the first embodiment in the water squeezing process state.

[0046] Fig.10 It is a three-dimensional structural schematic diagram of the collodion working head in the first embodiment being placed in the collodion working head water squeezing device and being in the initial state of water squeezing.

[0047] Fig.11 It is a cross-sectional structural schematic diagram of the collodion working head in the first embodiment being placed in the collodion working head water squeezing device and being in the water squeezing process state.

[0048] Fig.12 yes Fig.11 Schematic diagram of the cross-sectional structure of CC.

[0049] Fig.13 It is a three-dimensional structural schematic diagram of the water squeezing device of the collodion working head in the second embodiment.

[0050] Fig.14 It is a schematic cross-sectional view of the water squeezing device of the collodion working head in the second embodiment.

[0051] Fig.15 yes Fig.14 Schematic diagram of the cross-sectional structure of DD.

[0052] Fig.16 yes Fig.14 Schematic diagram of the cross-sectional structure of EE.

[0053] Fig.17 It is a cross-sectional structural schematic diagram of the collodion working head in the second embodiment placed in the collodion working head water squeezing device and in the water squeezing process state.

[0054] Fig.18 It is a three-dimensional structural schematic diagram of the collodion working head in the second embodiment being placed in the collodion working head water squeezing device and being in the water squeezing process.

[0055] In the figure, 1, base; 1a, barrel; 1b, vertical plate; 1b1, raised part; 1c, connecting cover; 1d, guide groove; 1e, linkage control slide groove; 1e1, vertical section; 1e2, inclined section; 1f, second limit slide groove; 2, upper pressure piece; 2a, front pressure rod; 2b, rear pressure rod; 3, lower pressure plate; 3a, second guide block part; 3b, first limit slide groove; 3c, third guide block part; 4, lifting frame; 4a, first guide block part; 4b, fulcrum slide groove; 4c, mounting slot; 4d, guide hole; 4e, vertical slide groove; 4f, horizontal slide groove; 4g, synchronous slide groove; 4h, shaft hole ; 5. lever; 5a. fulcrum shaft; 5b. hinge shaft; 6. connecting rod; 6a. swing control surface; 6a1. lower area; 6a2. upper area; 7. first rotating shaft; 8. toggle head; 9. first roller; 10. second rotating shaft; 11. fulcrum rotating shaft; 12. second roller; 13. rack; 14. guide sleeve; 15. synchronous gear; 16. slider; 17. first spring; 18. cotton strip; 19. back plate; 20. mop rod; 21. third roller; 22. fourth roller; 23. synchronous rotating shaft; 24. second spring; 100. water squeezing space; 200. avoidance space. DETAILED DESCRIPTION

[0056] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0057] Embodiment 1: Figures 1 to 6 As shown, a water squeezing device for a collodion working head comprises a base (1), an upper pressing piece (2), a lower pressing plate (3), a lifting frame (4) and a lever (5) assembly.

[0058] The base (1) comprises a barrel body (1a), two vertical plates (1b) and a connecting cover (1c). The two vertical plates (1b) are arranged in a one-to-one correspondence with two oppositely arranged side walls of the barrel body (1a). The bottom of the barrel body (1a) has a lower positioning slot, and the lower end of the vertical plate (1b) is embedded in the lower positioning slot; the connecting cover (1c) is buckled with the edge of the barrel body (1a), and the connecting cover (1c) has an upper positioning slot, and the upper end of the vertical plate (1b) is embedded in the upper positioning slot. Water can be stored in the barrel body (1a), which is convenient for cleaning the rubber cotton working head and collecting the water squeezed out in the water squeezing operation in the barrel body (1a). The barrel body (1a) has a large bottom surface, which improves the placement stability of the rubber cotton working head water squeezing device. By disassembling the connecting cover (1c), the vertical plate (1b) and other components can also be disassembled and assembled, so that the rubber cotton working head water squeezing device can be repaired and has the advantages of convenient disassembly and assembly and convenient maintenance. The upper pressing piece (2), the lower pressing plate (3), the lifting frame (4) and the lever (5) assembly are all located in the barrel body (1a).

[0059] The lifting frame (4) and the base (1) are connected via a first guide structure, and the lower pressing plate (3) and the base (1) are connected via a second guide structure. This can significantly improve the movement stability and flexibility of the lifting frame (4) and the lower pressing plate (3), reduce the force applied downward to the collodion working head, and improve the movement consistency of the two ends of the lifting frame (4) and the lower pressing plate (3), thereby improving the dehydration uniformity of the collodion working head.

[0060] The first guide structure comprises a first guide block portion (4a) and a guide groove (1d), wherein the first guide block portion (4a) is embedded in the guide groove (1d), and the guide groove (1d) is arranged vertically, thereby the lifting frame (4) can be lifted and moved. The lifting frame (4) is located between two vertical plates (1b), and both ends of the lifting frame (4) have a first guide block portion (4a), and each vertical plate (1b) has a guide groove (1d). Both ends of the lower pressing plate (3) have a second guide block portion (3a) embedded in the guide groove (1d), thereby the lower pressing plate (3) and the lifting frame (4) share a guide groove (1d), thereby simplifying the structure, improving the compactness of the structure, and reducing the manufacturing cost.

[0061] The lower pressing plate (3) is plate-shaped and arranged horizontally. A plurality of drainage holes are provided on the plate surface of the lower pressing plate (3), so that the squeezed water can flow away in time during the squeezing operation. The upper pressing piece (2) is located above the lower pressing plate (3), and a squeezing space (100) is formed between the upper pressing piece (2) and the lower pressing plate (3) for placing the collodion working head. The upper pressing member (2) comprises a front pressing rod (2a) and a rear pressing rod (2b) located on one side of the front pressing rod (2a), so that an escape space (200) communicating with the water squeezing space (100) is formed between the front pressing rod (2a) and the rear pressing rod (2b), and during the water squeezing operation, the collodion working head can also be placed into the water squeezing space (100) or taken out of the water squeezing space (100) through the escape space (200); at the same time, when the collodion working head is located in the water squeezing space (100), the mop rod (20) is located in the escape space (200), thereby eliminating the need to disassemble the mop rod (20) and making it more convenient to take and place the collodion working head, that is, the collodion working head water squeezing device has the advantage of convenient water squeezing operation.

[0062] The front pressure rod (2a) and the rear pressure rod (2b) of the upper pressure member (2) are both connected to the lifting frame (4), so that the upper pressure member (2) moves up and down along with the lifting frame (4). The front pressure rod (2a) and the rear pressure rod (2b) are both connected to the lifting frame (4) via a connecting rod (6), and the lower end of the connecting rod (6) is rotatably connected to the lifting frame (4) via a first rotating shaft (7). The connecting rod (6) connected to the front pressure rod (2a) is called the front connecting rod (6), and the connecting rod (6) connected to the rear pressure rod (2b) is called the rear connecting rod (6); the upper end of the front connecting rod (6) is fixedly connected to the front pressure rod (2a), and the upper end of the rear connecting rod (6) is fixedly connected to the rear pressure rod (2b). Thus, the front pressure rod (2a) can swing relative to the lifting frame (4), and the distance between the front pressure rod (2a) and the rear pressure rod (2b) increases or decreases when the front pressure rod (2a) and the rear pressure rod (2b) swing relative to the lifting frame (4). When the distance between the front pressure rod (2a) and the rear pressure rod (2b) is at the maximum, it is obviously convenient for the collodion working head to pass through the avoidance space (200), that is, it is convenient for the collodion working head to be put in or taken out. When the distance between the front pressure rod (2a) and the rear pressure rod (2b) is at the minimum, it is ensured that the front pressure rod (2a) and the rear pressure rod (2b) are both located directly above the collodion working head, thereby ensuring that the front pressure rod (2a) and the rear pressure rod (2b) and the lower pressing plate (3) can squeeze the collodion working head together.

[0063] The front pressure rod (2a) and the lower pressure plate (3) and the rear pressure rod (2b) and the lower pressure plate (3) are connected via a linkage structure. When the lower pressure plate (3) moves downward, the linkage structure can reduce the distance between the front pressure rod (2a) and the rear pressure rod (2b). The linkage structure and the connecting rod (6) connect the lower pressure plate (3) and the lifting frame (4), reducing the forward and backward movement of the lower pressure plate (3) relative to the lifting frame (4) and the forward and backward movement, thereby improving the bearing capacity of the lower pressure plate (3) and the movement stability of the lower pressure plate (3) and the lifting frame (4).

[0064] The linkage structure comprises a toggle head (8) and a swing control surface (6a) for the toggle head (8) to lean against. The toggle head (8) is fixedly connected to the lower pressure plate (3), and the toggle head (8) is located outside the swing control surface (6a). The linkage structure connecting the front pressure rod (2a) and the lower pressure plate (3) is called a first linkage structure, and the swing control surface (6a) in the first linkage structure is located on the front connecting rod (6); the linkage structure connecting the rear pressure rod (2b) and the lower pressure plate (3) is called a second linkage structure, and the swing control surface (6a) in the second linkage structure is located on the rear connecting rod (6). By controlling the shape of the swing control surface (6a), it can be ensured that when the lower pressure plate (3) moves downward, the toggle head (8) leans against the swing control surface (6a) and the toggle head (8) pushes the front connecting rod (6) to swing in a direction close to the rear pressure rod (2b), and the toggle head (8) pushes the rear connecting rod (6) to swing in a direction close to the front pressure rod (2a). The swing control surface (6a) is an inclined surface or a lower area (6a1) is recessed relative to the upper area (6a2); when the toggle head (8) abuts against the lower area (6a1) of the swing control surface (6a), the distance between the front pressure rod (2a) and the rear pressure rod (2b) is in a maximum state; when the toggle head (8) abuts against the upper area (6a2) of the swing control surface (6a), the distance between the front pressure rod (2a) and the rear pressure rod (2b) is in a minimum state.

[0065] A first roller (9) is rotatably connected to the toggle head (8). This structure reduces the friction between the toggle head (8) and the connecting rod (6), thereby reducing the force applied downward to the collodion working head, and improving the consistency of movement of the two ends of the lifting frame (4) and the lower pressure plate (3), thereby improving the dehydration uniformity of the collodion working head.

[0066] The lever (5) assembly is located below the lower pressing plate (3), and the lever (5) assembly includes two levers (5), and the two levers (5) are connected to the lifting frame (4), the base (1) and the lower pressing plate (3). The two levers (5) are symmetrically arranged relative to the vertical center plane of the lower pressing plate (3), so that one lever (5) is called the left lever (5) and the other lever (5) is called the right lever (5). The lower ends of the two levers (5) are rotatably connected to the bottom of the vertical plate (1b) through a second rotating shaft (10), and the top ends of the two levers (5) are in contact with the bottom surface of the lower pressing plate (3). A fulcrum rotating shaft (11) is installed on each lever (5), and a fulcrum sliding groove (4b) is provided on the lifting frame (4), and the fulcrum sliding groove (4b) is arranged horizontally, and the fulcrum rotating shaft (11) is embedded in the fulcrum sliding groove (4b).

[0067] The top of the lever (5) is rotatably connected to a second roller (12), and the wheel surface of the second roller (12) abuts against the bottom surface of the lower pressing plate (3), that is, the lever (5) abuts against the second roller (12), thereby effectively reducing the friction between the lever (5) and the lower pressing plate (3) and improving the movement stability of the lower pressing plate (3).

[0068] A first limiting slide groove (3b) is provided on the bottom surface of the lower pressure plate (3), and the second roller (12) is embedded in the first limiting slide groove (3b), so that the second roller (12) can only move along the longitudinal line direction of the first limiting slide groove (3b), thereby improving the swing stability of the lever (5) and improving the consistency of the force applied to the two levers (5).

[0069] A mounting slot (4c) is provided in the lifting frame (4), and the top of the lever (5) is located in the mounting slot (4c), thereby limiting the forward and backward swinging of the lever (5), improving the swinging stability of the lever (5), and improving the consistency of the force applied to the two levers (5).

[0070] The distance between the center line of the second rotating shaft (10) and the center line of the fulcrum rotating shaft (11) is L1, and the distance between the abutment line between the second roller (12) and the lower pressure plate (3) and the center line of the fulcrum rotating shaft (11) is L2. The value of L1:L2 is 1.8-3.5, which can achieve a labor-saving effect and ensure that the structure of the water squeezing device of the collodion working head is compact, especially the height of the water squeezing device of the collodion working head can be effectively controlled.

[0071] A rack (13) is connected to the fulcrum rotating shaft (11) connected to the left lever (5) and the fulcrum rotating shaft (11) connected to the right lever (5); a guide sleeve (14) is fixed to the lifting frame (4); the two racks (13) are both inserted into the guide sleeve (14); the two racks (13) are arranged in parallel; a synchronous gear (15) is rotatably connected to the lifting frame (4); the two racks (13) are meshed with the synchronous gear (15). This structure enables the two fulcrum rotating shafts (11) to move synchronously, thereby enabling the two levers (5) to swing synchronously, thereby improving the movement consistency of the two ends of the lifting frame (4) and the lower pressure plate (3), and achieving improved dehydration uniformity of the collodion working head.

[0072] By describing the water squeezing process of the water squeezing device using the collodion working head, the functions and advantages of each component are further explained, such as Figures 1 to 6 As shown, the second guide block portion (3a) in the lower pressure plate (3) abuts against the upper end surface of the guide groove (1d), and the lower pressure plate (3) is located at the uppermost position; the lifting frame (4) relies on the lower pressure plate (3), thereby the water squeezing device of the rubber cotton working head has the advantage of a compact structure; the first roller (9) is embedded in the concave area at the lower middle part of the swing control surface (6a), and the distance between the front pressure rod (2a) and the rear pressure rod (2b) is in a maximum state.

[0073] like Figure 6 and Figure 7 As shown, the water squeezing device of the collodion working head also includes a state-maintaining structure for maintaining the lower pressing plate (3) in the uppermost position. The state-maintaining structure includes a protrusion (1b1) located on the bottom surface of the guide groove (1d) and a state-maintaining member connected to the lifting frame (4), the state-maintaining member being clamped on the protrusion (1b1), thereby preventing the lifting frame (4) and the lower pressing plate (3) from sliding down naturally under the action of gravity. The state-maintaining member is a slider (16), a guide hole (4d) is provided on the end surface of the lifting frame (4), the slider (16) is embedded in the guide hole (4d), a first spring (17) is provided between the slider (16) and the lifting frame (4), and under the action of the elastic force of the first spring (17), the slider (16) always rests on the bottom surface of the guide groove (1d). The above-mentioned state-maintaining structure is provided between the two ends of the lifting frame (4) and the two vertical plates (1b), and the above-mentioned state-maintaining structure also has the function of improving the movement stability of the lifting frame (4).

[0074] like Figure 8 As shown, the collodion working head of the collodion mop is placed from top to bottom into the water squeezing space (100). The collodion working head comprises a back plate (19) connected to the mop rod (20) and a collodion strip (18) mounted on the back plate (19); the back plate (19) is placed horizontally, the mop rod (20) is arranged vertically, and the collodion strip (18) rests on the top surface of the lower pressing plate (3).

[0075] like Figures 9 to 12 As shown, people hold the mop rod (20) and press downward, and the rubber cotton working head pushes the lower pressing plate (3) to move downward; thereby, the second roller (12) is subjected to a downward force, and the lever (5) swings. The swing of the lever (5) drives the second roller (12) to slide relative to the lower pressing plate (3), and the lever (5) drives the fulcrum rotating shaft (11) to swing downward and the fulcrum rotating shaft (11) to move longitudinally along the fulcrum sliding groove (4b). The fulcrum rotating shaft (11) drives the lifting frame (4) to move downward. Since the lever (5) is not equidistant, the descending stroke of the lifting frame (4) is greater than the descending stroke of the lower pressing plate (3), that is, the distance between the lifting frame (4) and the lower pressing plate (3) is increased, thereby avoiding interference between the lifting frame (4) and the lower pressing plate (3) during the descending process. The lifting frame (4) drives the connecting rod (6) to move downward, forcing the first roller (9) to disengage from the concave area in the lower middle part of the swing control surface (6a), and then the first roller (9) pushes the connecting rod (6) to swing, and the distance between the front pressure rod (2a) and the rear pressure rod (2b) gradually decreases, the distance between the front pressure rod (2a), the rear pressure rod (2b) and the lower pressure plate (3) gradually decreases, and the distance between the back plate (19) and the front pressure rod (2a) and the rear pressure rod (2b) gradually decreases.

[0076] When people continue to apply downward force to the mop rod (20), first, the distance between the front pressure rod (2a) and the rear pressure rod (2b) reaches the minimum state, then the back plate (19) and the front pressure rod (2a) and the rear pressure rod (2b) are all against each other, and then the rubber cotton strip (18) gradually deforms, and the water in the rubber cotton strip (18) gradually overflows, and the overflowed water naturally flows downward. By controlling the magnitude of the downward force, the deformation amount of the rubber cotton strip (18) is controlled, and then the water content of the rubber cotton strip (18) is controlled, that is, the greater the force applied, the greater the downward movement stroke of the lower pressure plate (3), the greater the deformation amount of the rubber cotton strip (18), and the lower the water content of the rubber cotton strip (18).

[0077] When the required water content of the rubber cotton strip (18) is reached, people lift the mop rod (20) upwards, and the back plate (19) drives the front pressure rod (2a) and the rear pressure rod (2b) to move upwards, or people release the mop rod (20) to make the back plate (19) move upwards under the elastic force of the rubber cotton strip (18); the front pressure rod (2a) and the rear pressure rod (2b) drive the lifting frame (4) to move upwards through the connecting rod (6), and the lifting frame (4) forces the lever (5) to swing, and the top of the lever (5) moves upwards; under the elastic force of the rubber cotton strip (18), the lower pressure plate (3) is ensured to abut against the second roller (12), the lower pressure plate (3) moves upwards, and the distance between the front pressure rod (2a), the rear pressure rod (2b) and the lower pressure plate (3) gradually increases. In this process, because the first spring (17) can be extended and retracted, the slider (16) can pass over the protruding portion (1b1).

[0078] When the rubber cotton strip (18) is restored to its initial shape, the front pressure rod (2a) and the rear pressure rod (2b) can swing outward, the distance between the front pressure rod (2a) and the rear pressure rod (2b) increases, and the rubber cotton working head is pulled out from between the front pressure rod (2a) and the rear pressure rod (2b). During this process, the slider (16) passes over the raised portion (1b1) again, and the slider (16) rests on the upper side of the raised portion (1b1).

[0079] Embodiment 2: Figures 13 to 16 As shown, the structure and principle of this embodiment are basically the same as those of the first embodiment. The basic similarities are not described in detail. Only the differences are described. The differences are that the lower pressing plate (3) and the lifting frame (4) are connected via a third guide structure, while the lower pressing plate (3) and the base (1) are connected via a second guide structure. The third guide structure includes a vertical slide groove (4e) provided on the lifting frame (4) and a third guide block portion (3c) fixedly connected to the lower pressing plate (3), and the third guide block portion (3c) is embedded in the vertical slide groove (4e).

[0080] The front pressure rod (2a) and the rear pressure rod (2b) are not connected to the lifting frame (4) via a connecting rod (6), but a horizontal slide groove (4f) is provided on the lifting frame (4), and the ends of the front pressure rod (2a) and the rear pressure rod (2b) are embedded in the horizontal slide groove (4f), so that the front pressure rod (2a) and the rear pressure rod (2b) can move horizontally relative to the lifting frame (4), and the distance between the front pressure rod (2a) and the rear pressure rod (2b) increases or decreases when the front pressure rod (2a) and the rear pressure rod (2b) move.

[0081] The linkage structure does not connect the front pressure rod (2a) with the lower pressure plate (3) and the rear pressure rod (2b) with the lower pressure plate (3); instead, the front pressure rod (2a) and the vertical plate (1b) of the base (1) and the rear pressure rod (2b) and the vertical plate (1b) of the base (1) are both connected via the linkage structure. The linkage structure includes a toggle head (8) and a swing control surface (6a) for the toggle head (8) to lean on. The linkage structure connecting the front pressure rod (2a) and the base (1) is called a first linkage structure, in which the toggle head (8) and the front pressure rod (2a) are fixedly connected. The linkage structure connecting the rear pressure rod (2b) and the base (1) is called a second linkage structure, in which the toggle head (8) and the rear pressure rod (2b) are fixedly connected. A linkage control slide groove (1e) is provided on the vertical plate (1b) of the base (1), the side of the linkage control slide groove (1e) is a swing control surface (6a), and the toggle head (8) is embedded in the linkage control slide groove (1e). The linkage control slide groove (1e) includes a vertical section (1e1) and an inclined section (1e2) located above the vertical section (1e1), and when the toggle head (8) is located in the inclined section (1e2) of the linkage control slide groove (1e), the distance between the front pressure rod (2a) and the rear pressure rod (2b) is in a maximum state; when the toggle head (8) is located in the vertical section (1e1), the distance between the front pressure rod (2a) and the rear pressure rod (2b) is in a minimum state.

[0082] The levers (5) are connected to the lifting frame (4), the base (1) and the lower pressing plate (3) in different ways: the two levers (5) are cross-arranged, the lower ends of the two levers (5) can abut against the base (1), the top ends of the two levers (5) have hinged shafts (5b), the hinged shafts (5b) of the two levers (5) are rotatably connected to the lifting frame (4), each lever (5) has a fulcrum shaft (5a), the fulcrum shaft (5a) is located between the top end and the lower end of the lever (5), and the fulcrum shaft (5a) abuts against the bottom surface of the lower pressing plate (3).

[0083] The lower end of the lever (5) is rotatably connected to a third roller (21), and the wheel surface of the third roller (21) can abut against the bottom surface of the inner cavity of the barrel body (1a), that is, the lever (5) abuts against the barrel body (1a) through the third roller (21), thereby effectively reducing the friction between the lever (5) and the barrel body (1a) and improving the movement stability of the lever (5).

[0084] The fulcrum shaft portion (5a) of the lever (5) is rotatably connected to a fourth roller (22), and the wheel surface of the fourth roller (22) abuts against the bottom surface of the lower pressure plate (3), that is, the lever (5) abuts against the fourth roller (22), thereby effectively reducing the friction between the lever (5) and the lower pressure plate (3) and improving the movement stability of the lever (5).

[0085] A second limiting slide groove (1f) is provided on the bottom surface of the inner cavity bottom surface of the barrel body (1a), and the third roller (21) is embedded in the second limiting slide groove (1f), so that the third roller (21) can only move along the longitudinal line direction of the second limiting slide groove (1f), thereby improving the swing stability of the lever (5) and improving the consistency of the force applied to the two levers (5).

[0086] The distance between the top of the lever (5) and the abutment line between the third roller (21) and the bottom surface of the barrel body (1a) is L3, and the distance between the top of the lever (5) and the abutment line between the fourth roller (22) and the bottom surface of the lower pressing plate (3) is L4. The value of L3:L4 is 2.5-4.5, which can achieve a labor-saving effect and ensure that the structure of the water squeezing device of the collodion working head is compact.

[0087] The left lever (5) and the right lever (5) are not connected via a gear rack (13), but a vertically arranged synchronous slide groove (4g) is provided on the lifting frame (4), and the left lever (5) and the right lever (5) are connected via a synchronous rotating shaft (23), and the synchronous rotating shaft (23) is embedded in the synchronous slide groove (4g); in order to ensure that the left lever (5) and the right lever (5) can still swing, the shaft hole (4h) in the lifting frame (4) that is rotatably connected to the lever (5) is strip-shaped, and the shaft hole (4h) is arranged horizontally.

[0088] The state-maintaining structure is also different, and comprises a second spring (24), one end of the second spring (24) abuts against the lifting frame (4), and the other end of the second spring (24) abuts against the upper pressing member (2), that is, one second spring (24) abuts against the front pressing rod (2a), and the other second spring (24) abuts against the rear pressing rod (2b).

[0089] By describing the water squeezing process of the water squeezing device using the collodion working head, the functions and advantages of each component are further explained, such as Fig.17 and Fig.18 As shown, firstly, the collodion working head of the collodion mop is placed from top to bottom into the water squeezing space (100).

[0090] Then, the mop rod (20) is held and the collodion working head is pressed downward, so that the collodion working head pushes the lower pressing plate (3) to move downward; thereby, the second roller (12) is subjected to a downward force, and the lever (5) swings. The swing of the lever (5) drives the third roller (21) to slide relative to the barrel body (1a), and the lever (5) drives the synchronous rotating shaft (23) to move downward, and the top end of the lever (5) moves longitudinally along the shaft hole (4h).

[0091] The lifting frame (4) drives the upper pressure member (2) to move downward synchronously, and the linkage control slide groove (1e) forces the front pressure rod (2a) and the rear pressure rod (2b) to move horizontally, and the second spring (24) is compressed, so that the distance between the front pressure rod (2a) and the rear pressure rod (2b) gradually decreases, the distance between the front pressure rod (2a), the rear pressure rod (2b) and the lower pressure plate (3) gradually decreases, and the distance between the back plate (19) and the front pressure rod (2a) and the rear pressure rod (2b) gradually decreases.

[0092] When people continue to apply downward force to the mop rod (20), first, the distance between the front pressure rod (2a) and the rear pressure rod (2b) reaches the minimum state, then the back plate (19) and the front pressure rod (2a) and the rear pressure rod (2b) are all against each other, and then the rubber cotton strip (18) gradually deforms, and the water in the rubber cotton strip (18) gradually overflows, and the overflowed water naturally flows downward. By controlling the magnitude of the downward force, the deformation amount of the rubber cotton strip (18) is controlled, and then the water content of the rubber cotton strip (18) is controlled, that is, the greater the force applied, the greater the downward movement stroke of the lower pressure plate (3), the greater the deformation amount of the rubber cotton strip (18), and the lower the water content of the rubber cotton strip (18).

[0093] When the required water content of the rubber cotton strip (18) is reached, people lift the mop rod (20) upwards, and the back plate (19) drives the front pressure rod (2a) and the rear pressure rod (2b) to move upwards, or people release the mop rod (20) to cause the back plate (19) to move upwards under the elastic force of the rubber cotton strip (18); the front pressure rod (2a) and the rear pressure rod (2b) drive the lifting frame (4) to move upwards, and the lifting frame (4) forces the lever (5) to swing, and the top end of the lever (5) moves upwards; under the elastic force of the rubber cotton strip (18), the lower pressure plate (3) is ensured to abut against the fourth roller (22), the lower pressure plate (3) moves upwards, and the distance between the front pressure rod (2a), the rear pressure rod (2b) and the lower pressure plate (3) gradually increases.

[0094] When the rubber cotton strip (18) is restored to its initial shape, the front pressure rod (2a) and the rear pressure rod (2b) slide outwards, the distance between the front pressure rod (2a) and the rear pressure rod (2b) increases, and the rubber cotton working head is pulled out from between the front pressure rod (2a) and the rear pressure rod (2b).

Claims

1. A water squeezing device for a collodion working head, comprising a base (1), an upper pressing piece (2) and a lower pressing plate (3), wherein the upper pressing piece (2) is located above the lower pressing plate (3); characterized in that: The water squeezing device for the collodion working head also includes a lifting frame (4) and a lever assembly. The lifting frame (4) is connected to the base (1) via a first guide structure. The lifting frame (4) can be lifted and moved. The upper pressing piece (2) is connected to the lifting frame (4). The upper pressing piece (2) is lifted and moved along with the lifting frame (4). The lever assembly is connected to the lifting frame (4), the base (1) and the lower pressing plate (3). The lever assembly includes two levers (5). The two levers (5) are vertically spaced relative to the lower pressing plate (3). The center plane is symmetrically arranged, the lower end of the lever (5) is rotatably connected to the bottom of the base (1) via a second rotating shaft (10), the top end of the lever (5) can abut against the bottom surface of the lower pressure plate (3), a fulcrum rotating shaft (11) is installed on the lever (5), a fulcrum sliding groove (4b) is opened on the lifting frame (4), and the fulcrum rotating shaft (11) is embedded in the fulcrum sliding groove (4b); when the lower pressure plate (3) moves downward, the lever assembly can reduce the distance between the upper pressure piece (2) and the lower pressure plate (3).

2. The water squeezing device for the collodion working head according to claim 1, characterized in that: The lower pressing plate (3) and the base (1) are connected via a second guiding structure, or the lower pressing plate (3) and the lifting frame (4) are connected via a third guiding structure.

3. The water squeezing device for the collodion working head according to claim 1, characterized in that: The upper pressing member (2) comprises a front pressing rod (2a) and a rear pressing rod (2b) located on one side of the front pressing rod (2a); a water squeezing space (100) is formed between the upper pressing member (2) and the lower pressing plate (3); and an escape space (200) communicating with the water squeezing space (100) is formed between the front pressing rod (2a) and the rear pressing rod (2b).

4. The water squeezing device for the collodion working head according to claim 3, characterized in that: The front pressure rod (2a) and the rear pressure rod (2b) of the upper pressure member (2) are both connected to the lifting frame (4) via a connecting rod (6), and the lower end of the connecting rod (6) is rotationally connected to the lifting frame (4) via a first rotating shaft (7).

5. The water squeezing device for the collodion working head according to claim 4, characterized in that: The front pressure rod (2a) and the lower pressure plate (3) and / or the rear pressure rod (2b) and the lower pressure plate (3) are connected via a linkage structure, and when the lower pressure plate (3) moves downward, the linkage structure can reduce the distance between the front pressure rod (2a) and the rear pressure rod (2b).

6. The water squeezing device for the collodion working head according to claim 5, characterized in that: The linkage structure comprises a toggle head (8) and a swing control surface (6a) for the toggle head (8) to lean on; the toggle head (8) is fixedly connected to the lower pressure plate (3); the toggle head (8) is located outside the swing control surface (6a); and the swing control surface (6a) is located on the connecting rod (6).

7. The water squeezing device for the collodion working head according to claim 6, characterized in that: The swing control surface (6a) is an inclined surface or the lower area (6a1) is concave relative to the upper area (6a2).

8. The water squeezing device for the collodion working head according to claim 6, characterized in that: The toggle head (8) is rotatably connected to a first roller (9).

9. The water squeezing device for the collodion working head according to claim 3, characterized in that: The lifting frame (4) is provided with a horizontal slide groove (4f), and the ends of the front pressure rod (2a) and the rear pressure rod (2b) are embedded in the horizontal slide groove (4f).

10. The water squeezing device for the collodion working head according to claim 9, characterized in that: The front pressure rod (2a) and the base (1) and / or the rear pressure rod (2b) and the base (1) are connected via a linkage structure, and when the lifting frame (4) moves downward, the linkage structure can reduce the distance between the front pressure rod (2a) and the rear pressure rod (2b).

11. The water squeezing device for the collodion working head according to claim 10, characterized in that: The linkage structure comprises a toggle head (8) fixedly connected to the front pressure rod (2a) and / or the rear pressure rod (2b), a linkage control slide groove (1e) is provided on the base (1), and the toggle head (8) is embedded in the linkage control slide groove (1e).

12. The water squeezing device for the collodion working head according to claim 11, characterized in that: The linkage control slide groove (1e) comprises a vertical section (1e1) and an inclined section (1e2) located above the vertical section (1e1).

13. The water squeezing device for a collodion working head according to any one of claims 1 to 12, characterized in that: The lever assembly is located below the lower pressing plate (3).

14. The water squeezing device for the collodion working head according to claim 13, characterized in that: The lifting frame (4) is provided with a mounting slot (4c), and the top of the lever assembly is located in the mounting slot (4c).

15. The water squeezing device for a collodion working head according to claim 1, characterized in that: One lever (5) is called a left lever (5), and the other lever (5) is called a right lever (5); a rack (13) is connected to a fulcrum shaft (11) connected to the left lever (5) and a rack (13) is connected to a fulcrum shaft (11) connected to the right lever (5); a guide sleeve (14) is fixed to the lifting frame (4); the two racks (13) are both inserted into the guide sleeve (14), and the two racks (13) are arranged in parallel; a synchronous gear (15) is rotatably connected to the lifting frame (4), and the two racks (13) are both meshed with the synchronous gear (15).

16. The water squeezing device for a collodion working head according to claim 1, characterized in that: The distance between the center line of the second rotating shaft (10) and the center line of the fulcrum rotating shaft (11) is L1, the distance between the abutment line between the second roller (12) and the lower pressure plate (3) and the center line of the fulcrum rotating shaft (11) is L2, and the value of L1:L2 is greater than 1.

17. The water squeezing device for a collodion working head according to claim 1, characterized in that: The top of the lever (5) is rotatably connected to a second roller (12), and the wheel surface of the second roller (12) abuts against the bottom surface of the lower pressing plate (3).

18. The water squeezing device for the collodion working head according to claim 17, characterized in that: A first limiting sliding groove (3b) is provided on the bottom surface of the lower pressing plate (3), and the second roller (12) is embedded in the first limiting sliding groove (3b).

19. The water squeezing device for a collodion working head according to claim 1, characterized in that: The two levers (5) are cross-arranged, the lower end of the lever (5) can abut against the bottom of the base (1), the top end of the lever (5) has a hinge shaft (5b), the hinge shaft (5b) is rotatably connected to the lifting frame (4), the lever (5) has a fulcrum shaft (5a), the fulcrum shaft (5a) is located between the hinge shaft (5b) and the lower end, and the fulcrum shaft (5a) can abut against the bottom surface of the lower pressure plate (3).

20. The water squeezing device for a collodion working head according to claim 19, characterized in that: The lifting frame (4) is provided with a vertically arranged synchronous slide groove (4g); the left lever (5) and the right lever (5) are connected via a synchronous rotating shaft (23); the synchronous rotating shaft (23) is embedded in the synchronous slide groove (4g); and the shaft hole (4h) in the lifting frame (4) that is rotatably connected to the fulcrum shaft portion (5a) is in a strip shape.

21. The water squeezing device for a collodion working head according to claim 19, characterized in that: The distance between the top end of the lever (5) and the abutment line between the third roller (21) and the bottom surface of the barrel (1a) is L3, and the distance between the top end of the lever (5) and the abutment line between the fourth roller (22) and the bottom surface of the lower pressing plate (3) is L4, and the value of L3:L4 is greater than 1.

22. The water squeezing device for a collodion working head according to claim 19, characterized in that: The fulcrum shaft portion (5a) of the lever (5) is rotatably connected to a fourth roller (22).

23. The water squeezing device for a collodion working head according to any one of claims 3 to 12, characterized in that: The collodion working head water squeezing device also includes a state maintaining structure for maintaining the lower pressing plate (3) in the uppermost position.

24. The water squeezing device for a collodion working head according to claim 23, characterized in that: The state maintaining structure comprises a second spring (24), one end of the second spring (24) abuts against the lifting frame (4), one second spring (24) abuts against the front pressure rod (2a), and another second spring (24) abuts against the rear pressure rod (2b).

25. The water squeezing device for a collodion working head according to any one of claims 1 to 12, characterized in that: The base (1) comprises two vertical plates (1b), the lifting frame (4) is located between the two vertical plates (1b), the first guide structure comprises a vertically arranged guide groove (1d), each vertical plate (1b) has a guide groove (1d), and both ends of the lifting frame (4) have a first guide block portion (4a) embedded in the guide groove (1d).

26. The water squeezing device for a collodion working head according to claim 25, characterized in that: The collodion working head water squeezing device also includes a state maintaining structure for maintaining the lower pressing plate (3) in the uppermost position.

27. The water squeezing device for a collodion working head according to claim 26, characterized in that: The state retaining structure comprises a protruding portion (1b1) located on the bottom surface of the guide groove (1d) and a state retaining member connected to the lifting frame (4), and the state retaining member can be clamped on the protruding portion (1b1).

28. The water squeezing device for a collodion working head according to claim 27, characterized in that: The state retaining member is a slider (16). A guide hole (4d) is provided on the end surface of the lifting frame (4). The slider (16) is embedded in the guide hole (4d). A first spring (17) is provided between the slider (16) and the lifting frame (4). Under the elastic force of the first spring (17), the slider (16) always rests on the bottom surface of the guide groove (1d).

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