Mop wringing machine

Abstract

A mop wringing machine comprises a front plate, a first side plate, a second side plate, a bottom plate, a rack, a guide rail, a movable plate, a traction shaft and a driving mechanism. The driving mechanisms drive the traction shaft and the movable plate to move left and right, move rightwards to place a mop and move leftwards to extrude the mop for dewatering, one driving mechanism is a non-circular gear mechanism and comprises a handle, a handle shaft, a first non-circular gear, a second non-circular gear, a pressing wheel and a pressing wheel shaft, the handle and the first non-circular gear are fixedly connected with the handle shaft, the pressing wheel shaft is sleeved with the pressing wheel, and the other driving mechanism is a non-circular gear mechanism. The other set is a cam and four-bar mechanism and comprises a handle, a handle shaft, a cam, a roller, a roller shaft, a roller bar, a common shaft, a rocker and a connecting rod, the handle and the cam are fixedly connected with the handle shaft, the roller is installed on the roller shaft, the rocker and the roller bar are a whole and can rotate around the common shaft, the rocker is hinged to the connecting rod, and the connecting rod is hinged to the cam. The left end of the connecting rod sleeves the traction shaft. Compared with an existing manual wringing machine, the manual wringing machine saves labor and is convenient to operate.

Description

Technical Field

[0001] The utility model belongs to the field of machinery, and in particular relates to a traditional mop squeezing machine. Background Art

[0002] Nowadays, the floors of our homes and public places are all paved with tiles or wooden floors. When such floors are soiled, they are usually wiped clean with a clean mop. There are many kinds of mops on the market, but the commonly used ones are the "I" shaped cotton mop, the round cake-shaped mop that is washed with water and then dried, and the traditional large mop. Among them, the "I" shaped cotton mop has a very small contact area with the ground when wiping the ground, and the work efficiency is very low; the round cake-shaped mop has very few fiber strips, and the coverage area of ​​the ground when mopping the floor is small, so its work efficiency is also very low; the traditional large mop (such as Figure 1 ) is made by tying a certain amount of cloth strips to one end of a wooden or metal rod. This type of mop has a relatively large contact area with the ground and high work efficiency. It can also mop door corners and uneven ground. It has low production cost and low selling price. It is currently the most widely used type of mop. However, there is no good solution to how to squeeze out the excess water in this mop after washing with water. The methods commonly used by people at present are: First, twisting it by hand. Since human hands are much smaller than the mop head, most people cannot twist it at all. In winter, the water is very cold and the hands are frozen unbearable. It is also unhygienic. Second, hang the mop and use gravity to drain it, but this takes a lot of time and cannot be used immediately after washing. Third, use two boards, one board is fixed and the other board is movable. The mop is placed between the two boards, and a machine is used to push the movable board to squeeze out the water. There are many such machines in the current patent literature, but some of these machines require motors and corresponding reduction devices, which are relatively expensive. Some of them are manually operated without power, but the squeezing force on the movable plate is insufficient, and after the mop is squeezed, there is still too much residual water. They can be used in large places such as large hospitals and stations, but are not suitable for living rooms, especially wooden floors. In view of the above situation, it is very meaningful to design and manufacture a water squeezer with simple structure, low cost, manual operation, and high squeezing force. Summary of the Invention

[0003] In order to solve the problem of squeezing out excess water from traditional mops after cleaning, the utility model introduces a mop squeezer. This squeezer does not require electricity and is purely manual, saving time and effort. After the mop is cleaned, the squeezer can squeeze the mop to the required amount of residual water.

[0004] The technical solution adopted by the utility model to solve the technical problem is: to improve a water squeezing machine currently on the market, keep its basic structure unchanged, and design a driving device. After our improved water squeezing machine, the squeezing force of the movable plate on the mop can be increased exponentially.

[0005] The basic structure of a water squeezing machine currently on the market is: a frame, a front plate, side plate A, side plate B and a bottom plate, wherein side plate A and side plate B are respectively placed on both sides of the front plate, and the bottom plate is placed below the above three plates. The above plates are fixedly connected to the frame, or the plates are fixedly connected to each other and then to the frame. There are guide rails on side plate A and side plate B, and the guide rail is a groove perpendicular to the front plate and parallel to the bottom plate. Corresponding to the front plate is a movable plate, and there are lugs on the movable plate, and there are holes on the lugs. The holes are sleeved on the traction shaft, and the two ends of the traction shaft are installed in the guide rails. The driving device is hinged on the traction shaft. The movable plate can not only rotate around the traction shaft, but also move left and right under the drive of the traction shaft, and the movement trajectory of the traction shaft is controlled by the guide rails. Now, the utility model removes the driving device of the above water squeezing machine and introduces our own driving device.

[0006] We have two drive devices, one is a non-circular gear mechanism and the other is a cam + four-bar mechanism.

[0007] 1. Non-circular gear mechanism. This mechanism consists of a handle, a handle shaft, non-circular gear A, non-circular gear B, a pressure wheel, and a pressure wheel shaft. Non-circular gear A and the handle are mounted on the handle shaft and are fixedly connected to the handle shaft. Non-circular gear B is located above non-circular gear A and meshes with non-circular gear A. Above non-circular gear B is the pressure wheel, which can rotate around the pressure wheel shaft. The ends of the pressure wheel shaft are fixedly mounted on side plates A and B, or can be mounted on the machine frame. The bearings at both ends of the handle shaft are mounted on side plates A and B, or can be mounted on the machine frame. The handle shaft can rotate forward and reverse around the machine frame or around side plates A and B. The left end of non-circular gear B is provided with a hole that fits over the traction shaft. A curved surface is provided on the top of non-circular gear B, and the pressure wheel always presses against the curved surface. The pressure wheel and the curved surface ensure the correct meshing of non-circular gear A and non-circular gear B and prevent gear slippage.

[0008] Working process: Turn the handle clockwise by hand, the handle shaft and non-circular gear A rotate clockwise, and non-circular gear B moves to the right. At this time, the traction shaft and movable plate move to the right. When the movable plate moves to the limit position, the mop to be dehydrated is placed in the space formed by the front plate and the movable plate. Then turn the handle counterclockwise, the handle shaft and non-circular gear A rotate counterclockwise, and the movable plate moves to the left, compressing the mop. When the movable plate moves to the left to the limit position, the water in the mop is squeezed out, but the water cannot be squeezed out completely. Some water must always be left. At the same time, we also need some water, which we call residual water. The smaller the distance between the movable plate and the front plate, the less residual water there is. At the same time, the operator's hand feels more strenuous. If the parameters of the non-circular gear mechanism of the utility model are reasonably selected, the operator can obtain the required residual water without much effort. The reason for this will be explained in the specific embodiment with reference to the diagram.

[0009] Second, a cam + four-bar mechanism. This mechanism primarily consists of a handle, handle shaft, cam, roller, roller shaft, roller rod, common shaft, rocker, and connecting rod. The handle and cam are rigidly connected to the handle shaft, with both ends mounted within the frame or side panels A and B. The handle shaft can rotate forward and backward. The roller rod and rocker are integrated and can rotate forward and backward around a common shaft mounted within the frame or side panels A and B. The rocker is hinged to the connecting rod, which has a hole at its left end that fits over the traction shaft.

[0010] Working process: Turn the handle clockwise by hand, the handle shaft and cam rotate synchronously, driving the roller and roller shaft, the roller shaft drives the roller rod and rocker to rotate clockwise, the rocker drives the connecting rod and traction shaft, and the movable plate to move to the right. When the movable plate moves to the right to the limit position, put the mop into the machine, and then turn the handle counterclockwise, the movable plate moves to the left to squeeze the mop, and the water in the mop is continuously squeezed out. When the handle is rotated counterclockwise to the limit position, only residual water is left in the mop, and the water squeezing work is completed.

[0011] The advantage of the cam + four-bar mechanism is that it can give us more design freedom and make it easier to obtain a more ideal water squeezing machine. We will explain this again in the following specific embodiments.

[0012] We have designed and trial-produced prototypes of the aforementioned mop squeezers. During their use, we discovered a problem: when squeezing the mop to its limit, the user must always hold the handle to prevent it from rebounding. This requires a considerable amount of time to prevent the handle from rebounding, which can be quite tiring. To address this issue, the present invention introduces the following devices to prevent the handle from rebounding: BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 It is a schematic diagram of the traditional round mop described in the utility model.

[0015] Figure 2 It is a schematic diagram of a specific embodiment of the utility model, and is also Figure 3 The cross-sectional view along BB shows that the driving mechanism is a non-circular gear mechanism.

[0016] Figure 3 yes Figure 2 The cross-sectional view along AA, the projection of the frame is omitted in the figure.

[0017] Figure 4 yes Figure 2 Cross-sectional view along CC, the projection of the frame is omitted.

[0018] Figure 5 It is a front schematic diagram of another specific embodiment of the utility model.

[0019] Figure 6 This is a schematic diagram of a non-circular gear mechanism with a pair of teeth 1 meshing.

[0020] Figure 7 This is a schematic diagram of a non-circular gear mechanism with a pair of teeth n meshing.

[0021] Figure 8 This is a front view of another specific embodiment of the present invention, in which the driving mechanism is a cam + four-bar mechanism.

[0022] Figure 9 yes Figure 8 Cross-sectional view along DD.

[0023] Figure 10 It is a schematic diagram of a device for preventing handle rebound of the present utility model.

[0024] Figure 11 yes Figure 10 Top view of .

[0025] Figure 12 yes Figure 10 The enlarged view of the local I, the magnification is 4, wherein the angle controller (36) is a disc type.

[0026] Figure 13 yes Figure 11 Enlarged view of part II, magnification is 4.

[0027] Figure 14 yes Figure 12 Cross-sectional view along line EE.

[0028] Figure 15 yes Figure 12 Cross-sectional view along line FF.

[0029] Figure 16 and Figure 12 Similar, but the angle controller (36) is of the tooth type.

[0030] Figure 17 yes Figure 16 Cross-sectional view along line HH.

[0031] Figure 18 yes Figure 12 The S-direction view has a magnification of 1:1. Figure 10 S-direction view, magnification 4:1. This image shows the handle locked by the pawl.

[0032] Figure 19 yes Figure 12 This figure shows the handle being released by the pawl.

[0033] Figure 20 This is a schematic diagram of another device for preventing handle rebound in the present invention.

[0034] Figure 21 yes Figure 20 Enlarged view of part III, magnification is 4.

[0035] Figure 22 yes Figure 21 Cross-sectional view along line GG.

[0036] Figure 23 yes Figure 21 T-direction view. The handle is locked by the pawl.

[0037] Figure 24 yes Figure 21 T-direction view of the handle. The handle is released by the pawl.

[0038] Figure 25 and Figure 21 Similar, but the angle controller (36) is of the tooth type.

[0039] Figure 26 This is a schematic diagram of another device for preventing handle rebound in the present invention.

[0040] Figure 27 yes Figure 26 The enlarged view of the local IV, the magnification is 3.

[0041] Figure 28 yes Figure 27 Q-direction view.

[0042] Figure 29 and Figure 27 Similar, but different in that small rollers (40) are added to the round steel bar (41), and the angle controller (36) is of tooth-embedded type.

[0043] In the figure, 1. mop, 2. frame, 3. front plate, 4. side plate A, 5. side plate B, 6. guide rail, 7. bottom plate, 8. movable plate, 8.1 lug, 8.2 hole, 9. traction shaft, 10. handle, 11. handle shaft, 12. non-circular gear A, 12.1 pitch curve, 13. non-circular gear B, 13.1 hole, 13.2 anti-slip curve, 13.3 pitch curve, 14. pressure roller shaft, 15. pressure roller, 16. cam, 17. roller, 18. rocker, 19. roller rod, 19.1 roller shaft, 20. common shaft, 21. connecting rod, 21.1 connecting rod hole, 22. Auxiliary handle, 22.1 Gripper, 22.2 Auxiliary handle rod, 23. Pawl, 24. Pawl pin, 25. Hexagon, 25.1 Working surface, 26. Sleeve, 27. Disc A, 28. Pin, 29. Disc B, 29.1. Groove, 30. Stopper, 31. Return spring, 31.1 Spring seat, 32. Small pin shaft, 33. Small support, 34. Small roller, 35. Toothed arm A, 36. Angle controller, 37. Toothed arm B, 38. Main rod shaft, 38.1 Retaining ring, 39. Connecting plate, 40. Small roller No. 2, 41. Round steel bar, 42. Joint, 43. Main rod. DETAILED DESCRIPTION

[0044] Please see Figure 2 、 Figure 3 and Figure 4 The front plate (3), side plate A (4), side plate B (5) and bottom plate (7) are fixed on the frame (2), or the frame is not required. interconnected The movable plate (8) is provided with two lugs (8.1) symmetrically distributed on the left and right sides, and the lugs (8.1) are provided with holes (8.2). The side plates (4) and (5) are provided with guide rails (6). The traction shaft (9) passes through the holes (8.2) and is installed in the guide rails (6) at both ends. The traction shaft (9) is in dynamic fit with the holes (8.2) and in sliding fit with the guide rails (6). Driven by the traction shaft (9), the movable plate (8) can not only move left and right but also rotate around the traction shaft. The driving part of the traction shaft (9) and the movable plate (8) is a non-circular gear mechanism, which mainly consists of a handle (10), a handle shaft (11), a non-circular gear (12), a non-circular gear (13), a pressure wheel (15), and a pressure wheel shaft (14). The non-circular gear A (12) and the handle (10) are fixed on the handle shaft (11), and the bearings at both ends of the handle shaft (11) are arranged on the frame (2) and are in dynamic fit with the frame. Figure 2 、 3 4 are provided on the side plate A (4) and the side plate B (5), see Figure 4 The non-circular gear A (12) is meshed with the non-circular gear B (13). The left end of the non-circular gear B (13) has a hole (13.1), which is sleeved on the traction shaft (9). Figure 2 、 Figure 3 .

[0045] Here we define non-circular gears. The non-circular gears we refer to here include circular gears whose rotation center is not the center of the pitch circle, as well as gears and racks whose pitch curves are spline curves.

[0046] Please see Figure 2 For the convenience of design and manufacturing, we use a gear with a circular pitch curve (12.1) for non-circular gear A (12). Its pitch circle center is at O1, but its rotation center is at O. Similarly, we use a linear rack that is easy to manufacture for the pitch curve (13.3) of non-circular gear B (13). The meshing between the gear teeth of the non-circular gear A (12) and the non-circular gear B (13) is one-to-one, that is, the tooth top of the non-circular gear A (12) must mesh with the tooth recess of the corresponding tooth of the non-circular gear B (13). If the tooth top of the non-circular gear A (12) leaves the tooth recess of the corresponding non-circular gear B (13), we call it slipping teeth, and the transmission between the pair of non-circular gears collapses. In order to prevent slipping teeth, a slipping prevention curve (13.2) is provided on the non-circular gear B (13), and a pressure wheel (15) and a pressure wheel shaft (14) are provided on (13.2). The pressure wheel and the pressure wheel shaft are in sliding fit. The two ends of the pressure wheel shaft are fixed on the frame or the side plate A and the side plate B. The pressure wheel can rotate around the pressure wheel shaft but cannot move axially.

[0047] Please look again Figure 5 ,and Figure 2 The difference is that the pitch curve (13.3) of the non-circular gear B (13) is a spline curve, while the anti-slip curve (13.2) is a straight line. Figure 5 and Figure 2 The styles shown are different, but the functions are the same, it’s just that the design parameters are chosen differently.

[0048] The working process of this embodiment is as follows: hold the gripper (22.1), rotate the handle (10) clockwise to the limit position, place the mop (1) between the front plate (3) and the movable plate (8), then rotate the handle (10) counterclockwise, and the movable plate (8) moves to the left until it reaches the limit position. At this time, the water in the mop is squeezed out, and only the residual water we need is left.

[0049] This kind of mechanism is more labor-saving if the parameters are reasonably selected. The reason is as follows:

[0050] When the squeezing plate moves to the left to squeeze water, from the beginning of contact with the mop to the end of the squeezing process, its squeezing force gradually increases from the minimum value to the maximum value. What we need is a relatively large maximum value, and the non-circular gear mechanism introduced in this utility model can meet this requirement. Figure 6 , Figure 6 The diagram shows the state of the machine starting to squeeze water. At this time, the gear tooth 1 is engaged. Let the distance from 1 to the rotation center O be R1. As the handle rotates, the engagement point gradually changes from 1 to 2 to 3 to n teeth, and the engagement radius changes from R1 to R2 to R3 to R n , we can see from the figure that R n It gradually becomes smaller, Figure 7 This is the state diagram at the end of squeezing, at which point the meshing point is n. We assume that the torque m exerted by the handle on the handle shaft is constant, the non-circular gear A is the driving gear, and the meshing radius R n The smaller it is, the greater the force exerted by non-circular gear A on non-circular gear B. It is not difficult to find reasonable parameters of non-circular gear A and non-circular gear B so that the movable plate exerts a considerable squeezing force on the mop while still making it feel comfortable to hold.

[0051] Figure 8 The diagram shows that the driving mechanism of the movable plate is a cam + four-bar mechanism. It is composed of a frame (2), a front plate (3), a side plate A (4), a side plate B (5), a bottom plate (7), a movable plate (8), a guide rail (6), a traction shaft (9) and a driving part, wherein the driving part is composed of a connecting rod (21), a rocker (18), a roller rod (19), a common shaft (20), a roller (17), a roller shaft (19.1), a cam (16), a handle shaft (11), a handle (10) and the like. The rocker (18) and the roller rod (19) are a whole, and their common shaft (20) is installed on the frame and can rotate around the frame. The other end of the rocker (18) is hinged to the connecting rod (21), and the left end of the connecting rod (21) has a connecting rod hole (21.1), (21.1) is sleeved on the traction shaft (9), and the other end of the roller rod (19) is the roller shaft (19.1), see Figure 9 The roller (17) is mounted on the roller shaft (19.1), the cam (16) and the handle (10) are fixedly mounted on the handle shaft (11), the bearing of the handle shaft (11) is mounted on the frame, and the handle shaft and the frame are in dynamic fit. The four bars of the four-bar mechanism mentioned here are: the rocker (18), the connecting rod (21) and the guide rail (6), and the guide rail is two bars.

[0052] Working process: A person holds the handle (10) and rotates the handle shaft (11) and the cam (16) clockwise. The cam drives the roller (17) and the roller shaft (19.1). The roller shaft (19.1) drives the roller rod (19) and the rocker (18) to rotate clockwise. Then, the connecting rod (21) drives the traction shaft (9) and the movable plate (8) to move to the right until the limit position. At this time, the mop with high water content is placed in the space formed by the front plate and the movable plate. Then, the handle is rotated counterclockwise. The transmission chain drives the movable plate to move to the left until the limit position. At this time, the water squeezing work is completed.

[0053] Anyone with knowledge of mechanical principles knows that the cam mechanism can provide us with greater design freedom. It is easy for us to find a set of reasonable parameters and design a dehydrator that is easy to operate and has a relatively large extrusion force.

[0054] Next, we will explain the structures and working principles of several handle rebound prevention devices introduced by the present invention.

[0055] The device for preventing the handle from rebounding is arranged on the handle and the frame.

[0056] a portion provided on the handle;

[0057] Figure 10 This is a schematic diagram of a water squeezer with a device to prevent the handle from rebounding. Figure 11 yes Figure 10 Top view of . Figure 12 yes Figure 10 The enlarged picture of the local I is 4 times. Figure 10 、 Figure 11 and Figure 12 , at this time, the handle (10) has become a component composed of multiple parts. Among them, (42) is the joint of the handle, which is fixedly connected to the handle shaft (11), and (43) is the main rod. The main rod is a column, which can be a cylinder, such as round steel, or a prism, such as hexagonal steel, etc., as long as it has sufficient bending strength and rigidity. To the left of the main rod (43) (from the position in the figure) is the angle controller (36), and to the left is the main rod shaft (38), and the sleeve (26). The main rod shaft (38) is a cylinder, and the sleeve is dynamically matched with it, that is, the sleeve can rotate forward and backward around the main rod shaft, and the retaining ring (38.1) plays the role of preventing the sleeve from slipping out. A hexagonal body (25) is welded on the top of the sleeve (26), and a sub-handle (22) is welded on the leftmost end. The sub-handle (22) consists of a gripper (22.1) and a sub-handle rod (22.2), see Figure 13The gripper (22.1) can be a sphere or a cylinder, etc., as long as it fits comfortably in the hand. The auxiliary handle bar (22.2) can be made of round steel, and its length should be preferably 80 to 150 mm. The auxiliary handle bar (22.2), main rod shaft (38), sleeve (26), hexagonal body (25), angle controller (36), main rod (43), joint (42), and handle shaft (11) have position requirements. In addition to what is shown in the figure, the following additional explanations are provided:

[0058] 1. Ignoring the thickness of the hexagonal body (25), the working surface (25.1) of the hexagonal body and the axis of the sleeve (26) and the main rod shaft (44) are in the same plane, and this plane is hereinafter referred to as "M1".

[0059] 2. The included angle γ between the auxiliary handle bar (22.2) and M1 should be selected to be 0 to 30 degrees, see Figure 12 .

[0060] 3. The axis of the handle shaft (11) and the axis of the main rod shaft (38) are perpendicular to each other and form a plane, which is hereinafter referred to as "M2".

[0061] By holding the gripper (22.1) with your hand, you can make the auxiliary handle (22) drive M1 to rotate forward and reverse around the main rod axis (38), but the angle of rotation is controlled by the angle controller (36). The angle controller can be of various types, and the utility model provides two types. One is a disc type, such as Figure 12 、 Figure 14 、 Figure 15 As shown, one is the tooth-type, such as Figure 16 shown.

[0062] The working principle of the disc type. Figure 12 The disc A (27) is welded to the sleeve (26) and is in dynamic fit with the main rod shaft (38). Figure 14 , a pin (28) is welded on the disc A (27), and the disc B (29) corresponds to the disc A (27). Figure 15 The disc (29) is fixedly connected to the main rod (43). The disc (29) has an arc groove (29.1). The circumferential angle α of the arc groove is preferably selected from 60 to 90 degrees. When a person holds the auxiliary handle (22) and rotates it, the sleeve (26) and the disc (27) rotate together around the main rod axis (38), and the pin (28) slides in the arc groove (29.1). However, the sliding range of the pin can only be 0 to α.

[0063] The working principle of the tooth type. Figure 15 This is a schematic diagram of a tooth-type angle controller. Figure 17 yes Figure 16 Cross-sectional view along line HH. Figure 16 and Figure 17The toothed nail (35) has a hole (35.1), which is in dynamic fit with the main rod shaft (38). The toothed nail (35) is welded to the sleeve (26). The toothed nail (37) has a hole (37.1), which is fixedly connected with the main rod shaft (38) and the main rod (43). When the auxiliary handle (22) is turned, the sleeve (26) and the toothed nail (35) rotate synchronously. However, due to the limitation of the toothed nail (37), the rotation angle of the toothed nail (35) does not exceed the angle β. The range of the angle β should be selected within 1 / 2 degrees. Spend.

[0064] The installation requirements of the angle controller (36) are as follows: when the auxiliary handle (22) is rotated counterclockwise to the extreme position, M1 and M2 coincide, and α or β = 0; when the auxiliary handle (22) is rotated clockwise to the other extreme position, the angle σ or β between M1 and M2 is equal to 0. Spend.

[0065] A portion provided on a frame;

[0066] Please see Figure 18 and Figure 19 The pawl (23) is mounted on the frame (2), the pawl pin (24) is fixed on the frame, the pawl can rotate around the pawl pin, but is fixed axially, the stopper (30) is arranged at the corresponding position of the frame, and the frame has a return spring (31) and a spring seat (31.1). Figure 18 As can be seen from the figure, the pawl (23) can overcome the thrust of the return spring and rotate in the clockwise direction, as shown by arrow a, but after the pawl hits the stopper (30), it cannot rotate counterclockwise.

[0067] Working process: please see Figure 10 、 Figure 11 、 Figure 12 , a person holds the gripper (22.1) and there are two rotations: one is the rotation of the secondary handle (22) around the main rod axis (38), and the other is the rotation of the handle (10) around the handle axis (11). We will not worry about the former rotation for now, and only focus on the rotation of the handle around the handle axis. From the front, turn the handle clockwise to the limit position, as shown by the double-dotted line in the figure, and place the mop head into the machine. Then, turn the handle counterclockwise and the mop head will begin to be squeezed. At this time, the handle is acted upon by two forces, one is the reaction force of the handle shaft (11) on the handle (10), and the other is the force of the human hand on the grip. These two forces form a torque, which is much greater than the friction torque of the main rod shaft (38) on the sleeve (26). Therefore, from the direction of the main rod shaft to the joint, the auxiliary handle (22) rotates counterclockwise around the main rod shaft (38), that is, M1 rotates counterclockwise around the main rod shaft (38), until M1 and M2 coincide. Then the human hand continues to rotate the handle (10) counterclockwise, the mop head continues to be squeezed, and the handle approaches Figure 10When the solid line shows the position, change the angle of view and see Figure 18 , the handle reaches the position shown by the double-dotted line, the hexagonal body (26) begins to contact the ratchet (23), and the handle continues to rotate, from Figure 18 It moves in the direction of arrow b. The hexagonal body (26) pushes the pawl (23) to rotate around the pawl pin (24) in the direction of arrow a. Once the hexagonal body (26) reaches a certain position and disengages from the pawl, Figure 18 At the position indicated by the double-dotted line on the lower right, the pawl (23) rotates in the opposite direction of a around the pawl pin (24) under the action of the return spring until it contacts the stopper (30). At this point, the handle can continue to rotate until it reaches the limit position. Generally, when designed, this limit position of extrusion is close to the position of the pawl. Therefore, once the handle rotates past the pawl, the extrusion process ends. At this point, the person releases the grip, and the extruded mop head still has a large reaction force on the handle, which tends to force the handle (10) to rotate clockwise around the handle axis (11). Figure 18 From the perspective of the hexagonal body (25), there is a tendency for the hexagonal body (25) to move upward along the double-dotted line, but this movement is blocked by the ratchet. In other words, the ratchet blocks the rebound of the handle without time limit until the water in the mop head is squeezed out to meet the requirements.

[0068] How to release the lock of the hexagon by the pawl?

[0069] A person holds the gripper (22.1) and lifts it upwards, exerting an upward force f on the auxiliary handle (22). Figure 18 According to theoretical mechanics, the force f gives the secondary handle (22) a torque, and the direction of rotation is arrow c. This torque causes M1 to rotate around the axis of the main rod (38). Here, the angle controller α we designed is 90 degrees, so the angle between M1 and M2 is 90 degrees. Figure 19 As a result, the hexagonal body (25) is freed from the control of the ratchet (23), that is, it is unlocked, and the gripper (22.1) is continued to be held to return the handle to the initial limit position. At this time, the mop head can be taken out, and the entire squeezing process is completed.

[0070] Figure 20 This is another schematic diagram of a water squeezer with a handle rebound prevention device. The part circled by III on the left side of the figure is one of the handle rebound prevention devices introduced by the present invention. For the sake of clarity, Figure 21 Draw III in magnified form with a magnification of 4. Figure 10 Compared with the above, only small rollers (34) are used instead of Figure 10 The hexagonal body in the figure has not changed, so here we only describe the structure and function of the small roller (34). Figure 22Two small supports (33) are welded on the sleeve (26). The small support (33) has a hole, in which a small pin (32) is installed. The small roller (34) is sleeved on the small pin, and the small roller and the small pin are in dynamic cooperation. Figure 26 The display shows the status of the auxiliary handle (22), small roller (34), small support (33) and small pin (32) when the squeezing process reaches the limit position. Figure 24 The display shows the status of the auxiliary handle (22), the small roller (34), the small support (33) and the small pin (32) when the water squeezing process is finished and the return is about to begin. Figure 25 The angle controller (36) is shown to be of the toothed type.

[0071] Figure 26 The diagram shows another embodiment of a water squeezing machine. The portion circled by IV on the left side of the diagram is one of the devices for preventing the handle from rebounding. The device is characterized in that when the handle (10) rotates around the handle shaft (11), no matter where the handle is turned, the main shaft (38) will not touch the pawl (23), that is, the closest distance τ between the end (38.1) of the main shaft and the pawl (23) is greater than 0. Figure 27 . Figure 28 1 is a schematic diagram of the device when the water squeezer is in a locked state, and the double-dotted line shows the situation when it is in an unlocked state.

[0072] Figure 29 and Figure 28 Similar, but different Figure 29 A small roller No. 2 (40) is added, and the small roller No. 2 (40) is dynamically matched with the round steel bar (41). Such an improvement makes unlocking easier and more reliable, and also improves the wear resistance of the round steel bar (41) and the pawl (23).

Claims

1. A mop squeezer, comprising a frame (2), a front plate (3), a side plate (4), a side plate (5), a bottom plate (7), a guide rail (6), a movable plate (8), a traction shaft (9) and a driving device, wherein the front plate (3), the side plate (4), the side plate (5) and the bottom plate (7) are fixedly connected to the frame (2), or the plates are fixedly connected to each other and then to the frame (2), the guide rail (6) is on the side plate (4) and the side plate (5), the movable plate (8) has a hole (8.2), the traction shaft (9) passes through the hole (8.2) on the movable plate (8), the two ends of the traction shaft (9) are inserted into the groove of the guide rail (6), and the hole (13.1) of the driving device is sleeved on the traction shaft (9), wherein: The driving device is either (1) a non-circular gear mechanism or (2) a cam + four-bar mechanism, wherein the (1) non-circular gear mechanism comprises a handle (10), a handle shaft (11), a non-circular gear A (12), a non-circular gear B (13), a pressure wheel (15), and a pressure wheel shaft (14), wherein the handle (10) and the non-circular gear A (12) are fixedly connected to the handle shaft (11), the non-circular gear B (13) is meshed with the non-circular gear A (12), the pressure wheel (15) is on the non-circular gear B (13), the pressure wheel (15) is installed on the pressure wheel shaft (14), the two ends of the pressure wheel shaft (14) are installed on the side plate A (4) and the side plate B (5), and the hole (13.1) of the non-circular gear B (13) is sleeved on the traction shaft (9); the (2) cam + four-bar mechanism comprises The invention comprises a handle (10), a handle shaft (11), a cam (16), a roller (17), a roller shaft (19.1), a roller rod (19), a common shaft (20), a rocker (18), and a connecting rod (21), wherein the handle (10), the handle shaft (11), and the cam (16) are fixedly connected, the bearing of the handle shaft (11) is on the side plate (4) and the side plate (5), the roller (17) is installed on the roller shaft (19.1), the roller shaft (19.1), the roller rod (19), the rocker (18), and the common shaft (20) are fixedly connected, the bearing of the common shaft (20) is on the side plate (4) and the side plate (5), the rocker (18) is hinged to the connecting rod (21), and the hole (21.1) at the other end of the connecting rod (21) is sleeved on the traction shaft (9).

2. The mop squeezer according to claim 1, wherein: The handle (10) and the frame (2) are also provided with a device for preventing the handle from rebounding. The device for preventing the handle from rebounding comprises a secondary handle (22), a main rod shaft (38), a sleeve (26), a hexagonal body (25), a disc A (27), a pin (28), a disc B (29), a main rod (43), a joint (42), a pawl (23), a pawl pin (24), a return spring (31), a block (30), and a spring seat (31.1). The secondary handle (22) is composed of a gripper (22.1), a secondary handle rod (22.2), and a secondary handle. The handle bar (22.2), the hexagonal body (25), and the disc A (27) are welded on the sleeve (26), the pin (28) is welded on the disc A (27), the sleeve (26) is installed on the main rod shaft (38), the disc B (29) and the joint (42) are welded on the main rod (43), the pawl pin (24), the stopper (30), and the spring seat (31.1) are fixedly connected to the frame (2), the pawl (23) is installed on the pawl pin (24), one end of the return spring (31) is pressed against the pawl (23), and the other end is pressed against the spring seat (31.1).

3. The mop squeezer according to claim 1, wherein: The handle (10) and the frame (2) are also provided with a device for preventing the handle from rebounding. The device for preventing the handle from rebounding is composed of a sub-handle (22), a main rod shaft (38), a sleeve (26), a small roller (34), a small support (33), a small pin shaft (32), a disc A (27), a pin (28), a disc B (29), a main rod (43), a joint (42), a pawl (23), a pawl pin (24), a return spring (31), a spring seat (31.1), and a block (30). The sub-handle (22) is composed of a gripper (22.1), a sub-handle rod (22.2), and the sub-handle rod (22.2 ), small support (33), disc A (27) are welded on the sleeve (26), pin (28) is welded on the disc A (27), small roller (34) is installed on the small pin (32), small pin (32) is installed on the small support (33), sleeve (26) is installed on the main rod shaft (38), disc B (29) is welded on the main rod (43), pawl pin (24), stopper (30), spring seat (31.1) and frame (2) are fixedly connected, pawl (23) is installed on the pawl pin (24), one end of the return spring (31) is pressed on the pawl (23), and the other end is pressed on the spring seat (31.1).

4. The mop squeezer according to claim 1, wherein: The handle (10) and the frame (2) are also provided with a device for preventing the handle from rebounding. The device for preventing the handle from rebounding is composed of a secondary handle (22), a round steel bar (41), a small roller No. 2 (40), a connecting piece (39), a sleeve (26), a main rod shaft (38), a disc A (27), a pin (28), a disc B (29), a main rod (43), a joint (42), a pawl (23), a pawl pin (24), a return spring (31), a spring seat (31.1), and a stopper (30). The secondary handle (22) is composed of a gripper (22.1) and a secondary handle rod (22.2). The secondary handle rod (22.2) is welded to the gripper. Connected on the round steel bar (41), small roller No. 2 (40) is installed on the round steel bar, the round steel bar (41) is welded on the connecting piece (39), the connecting piece (39) and the disc A (27) are welded on the sleeve (26), the pin (28) is welded on the disc A (27), the sleeve (26) is installed on the main rod shaft (38), the disc B (29) is welded on the main rod (43), the pawl pin (24), the stopper (30), the spring seat (31.1) and the frame (2) are fixedly connected, the pawl (23) is installed on the pawl pin (24), one end of the return spring (31) is pressed on the pawl (23), and the other end is pressed on the spring seat (31.1).

5. The mop squeezer according to claim 1, wherein: The handle (10) and the frame (2) are also provided with a device for preventing the handle from rebounding. The device for preventing the handle from rebounding comprises a secondary handle (22), a main rod shaft (38), a sleeve (26), a hexagonal body (25), a toothed first part (35), a toothed second part (37), a main rod (43), a joint (42), a pawl (23), a pawl pin (24), a return spring (31), a stopper (30), and a spring seat (31.1). The secondary handle (22) is composed of a gripper (22.1), a secondary handle rod (22. 2), the auxiliary handle rod (22.2), the hexagonal body (25), and the toothed armor (35) are welded on the sleeve (26), the sleeve (26) is installed on the main rod shaft (38), the toothed armor (37) and the joint (42) are welded on the main rod (43), the pawl pin (24), the stopper (30), and the spring seat (31.1) are fixedly connected to the frame (2), the pawl (23) is installed on the pawl pin (24), and one end of the return spring (31) is pressed against the pawl (23), and the other end is pressed against the spring seat (31.1).

6. The mop squeezer according to claim 1, wherein: The handle (10) and the frame (2) are also provided with a device for preventing the handle from rebounding. The device for preventing the handle from rebounding is composed of a secondary handle (22), a main rod shaft (38), a sleeve (26), a small roller (34), a small support (33), a small pin shaft (32), a toothed first part (35), a toothed second part (37), a main rod (43), a joint (42), a pawl (23), a pawl pin (24), a return spring (31), a block (30), and a spring seat (31.1). The secondary handle (22) is composed of a gripper (22.1), a secondary handle rod (22.2), and the secondary handle rod ( 22.2), a small support (33), and a toothed A (35) are welded on the sleeve (26), a small roller (34) is mounted on a small pin (32), and a small pin (32) is mounted on the small support (33), the sleeve (26) and the main rod shaft (38) are dynamically matched, a toothed B (37), and a joint (42) are welded on the main rod (43), a pawl pin (24), a stopper (30), and a spring seat () are fixedly connected to the frame (2), the pawl (23) is mounted on the pawl pin (24), one end of the return spring (31) is pressed against the pawl (23), and the other end is pressed against the spring seat (31.1).

7. The mop squeezer according to claim 1, wherein: The handle (10) and the frame (2) are also provided with a device for preventing the handle from rebounding. The device for preventing the handle from rebounding is composed of a secondary handle (22), a round steel bar (41), a small roller No. 2 (40), a connecting piece (39), a main rod shaft (38), a sleeve (26), a toothed first part (35), a toothed second part (37), a main rod (43), a joint (42), a pawl (23), a pawl pin (24), a return spring (31), a block (30), and a spring seat (31.1). The secondary handle (22) is composed of a gripper (22.1), a secondary handle rod (22.2), and the secondary handle rod (22 .2) is welded on the round steel bar (41), the small roller No. 2 is installed on the round steel bar, the round steel bar (41) is welded on the connecting piece (39), the connecting piece () and the toothed A (35) are welded on the sleeve (26), the sleeve (26) is installed on the main rod shaft (38), the toothed B (37) and the joint (42) are welded on the main rod (43), the pawl pin (24), the stopper (30) and the spring seat (31.1) are fixedly connected to the frame (2), the pawl (23) is installed on the pawl pin (24), one end of the return spring (31) is pressed on the pawl (23), and the other end is pressed on the spring seat (31.1).

Images