A hydraulic cylinder for household textile machinery

Abstract

The present invention discloses a hydraulic cylinder for household textile machinery, which relates to the technical field of hydraulic cylinders, and comprises a hydraulic cylinder, wherein a cleaning box with a hollow interior is installed on one side of the hydraulic cylinder, wherein a piston rod of the hydraulic cylinder penetrates the cleaning box, and wherein two groups of wiping components for cleaning the outer wall of the piston rod are arranged in the cleaning box; and the two groups of wiping components have two states, in state one, the two groups of wiping components and the piston rod are in a clamped state, and in state two, the two groups of wiping components and the piston rod are in a separated state. The present invention drives the two groups of wiping components to switch back and forth between the two states through a switching component, and cooperates with the reciprocating movement of the piston rod, so that the wiping component can be away from the piston rod when the piston rod is extended, and can clean the outer wall of the piston rod when the piston rod is retracted, that is, after the piston rod is extended and drives the external textile machinery to work, the textile fibers and dust mixed with oil on the outer wall of the piston rod are scraped off.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder for household textile machinery. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When using a hydraulic cylinder to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines.

[0003] Among them, when the hydraulic cylinder used in textile machinery is in use, textile fibers or dust will float in the air in the textile factory workshop. These impurities are easy to adhere to the piston rod of the hydraulic cylinder. Especially when the seal of the hydraulic cylinder is aged, the hydraulic oil or lubricating oil covered on the surface of the piston rod will make it easier for impurities to adhere. With the reciprocating motion of the piston rod, it may not only affect the seal of the hydraulic cylinder, causing further leakage of the hydraulic oil, but also pollute the hydraulic oil in the hydraulic cylinder, causing the viscosity of the hydraulic oil to decrease, affecting the normal use of the hydraulic cylinder. Summary of the invention

[0004] The object of the present invention is to provide a hydraulic cylinder for a household textile machine to solve at least one technical problem existing in the above-mentioned prior art.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a hydraulic cylinder for a household textile machine, comprising a hydraulic cylinder, a cleaning box with a hollow interior is installed on one side of the hydraulic cylinder, a piston rod of the hydraulic cylinder passes through the cleaning box, and two groups of wiping components for cleaning the outer wall of the piston rod are arranged in the cleaning box;

[0006] The two groups of erasing components have two states: state one, the two groups of erasing components and the piston rod are in a clamped state; state two, the two groups of erasing components and the piston rod are in a separated state;

[0007] Also included is a switching component, which is used to drive the two groups of erasing components to switch back and forth between two states.

[0008] Preferably, two groups of erasing components are symmetrically distributed about the piston rod in the cleaning box, and the erasing components include a circular box slidably installed in the cleaning box, a sliding plate is slidably installed in the circular box, the sliding plate is rotatably connected to the inner wall of the cleaning box by a connecting rod, and a wiping portion is provided on the side of the sliding plate close to the piston rod.

[0009] Preferably, the wiping part comprises a rotating groove provided on the surface of the sliding plate, a rotating shaft is rotatably installed in the rotating groove, a rotating block is fixedly installed on the outer wall of the rotating shaft, and sponge blocks are fixedly installed on both sides of the rotating block;

[0010] It also includes a locking mechanism, which is used to lock the rotating block.

[0011] Preferably, the parts of the rotating shaft passing through the two sides of the sliding plate are fixedly installed with cross blocks, the cross block is provided with four convex strips, wherein two opposite convex strips are provided with sliding grooves inside, sliding blocks are slidably installed in the two sliding grooves, and the ends of the two sliding blocks are provided with inclined surfaces parallel to each other, a spring is fixedly connected between the sliding block and the inner wall of the sliding groove, and the other two opposite convex strips are set as levers;

[0012] A shift block is fixedly mounted on the inner wall of the circular box, a groove for the shift rod to be rotated in or out is provided in the middle of the shift block, and an inclined groove matching with the inclined surface of the sliding block is provided on the outer wall of the shift block.

[0013] Preferably, a fixing plate is installed on the inner wall of the cleaning box, and a brush is fixedly installed on the side wall of the fixing plate;

[0014] The utility model also comprises a liquid injection mechanism, and the liquid injection mechanism is used for injecting a cleaning agent into the brush.

[0015] Preferably, the liquid injection mechanism comprises a liquid storage box fixed to the outer wall of the cleaning box, and absorbent cotton is arranged in the liquid storage box, and the absorbent cotton is inserted into the center of the bristles of the brush.

[0016] Preferably, magnets are installed on both sides of the rotating groove, and magnetic blocks attracted to the magnets are fixedly installed on both sides of the rotating block.

[0017] Preferably, the locking mechanism includes slots opened on both sides of the rotating block, and also includes an empty slot opened on the inner wall of the rotating slot opposite to the slot, an insertion block is slidably installed in the empty slot, a compression spring is connected between the insertion block and the empty slot, and an elastic rope is also fixedly connected to the end of the insertion block, and the part of the elastic rope that passes through the sliding plate is fixedly connected to the inner wall of the cleaning box.

[0018] Preferably, the switching assembly includes a driving member fixedly installed in the cleaning box for driving the circular box to slide vertically, a rangefinder capable of detecting the moving direction of the piston rod is fixedly installed in the cleaning box, and the rangefinder and the driving member are controlled by electrical signals.

[0019] Preferably, a damping is provided at the rotation connection between the rotation shaft and the rotation groove.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention drives the two groups of erasing components to switch back and forth between two states through a switching component, and cooperates with the reciprocating movement of the piston rod, so that the erasing components can be away from the piston rod when the piston rod is extended, and can clean the outer wall of the piston rod when the piston rod is retracted, that is, after the piston rod is extended and drives the external textile machinery to work, the textile fibers and dust mixed with oil on the outer wall of the piston rod can be scraped off. Since the two groups of erasing components are away from each other and completely separated from the piston rod when the piston rod is extended, the dirt that was previously scraped off and accumulated on the end of the erasing component closest to the piston rod will not cause secondary pollution to the outer wall that has been cleaned due to its long-term contact with the piston rod, so as to achieve the purpose of highly cleaning the outer wall of the piston rod.

[0022] Second, the present invention can switch the two groups of erasing components between state one and state two by sliding the circular box back and forth in the cleaning box, so that the cleaning part can be separated from the piston rod after cleaning the piston rod, thereby preventing the outer wall of the piston rod from being contaminated again.

[0023] 3. The present invention drives the rotating block through the external structure, so that when the piston rod extends outward, the position of the sponge block with dirt and the clean sponge block can be swapped with each other, and then cooperate with the locking mechanism to make the piston rod retract inward. The two groups of rotating blocks close to each other remain parallel to each other, so that the two sponge blocks close to each other can remain parallel to the axis of the piston rod when wrapping the outer wall of the piston rod, so that the contact area between the two sponge blocks and the outer wall of the piston rod is maximized and the position can be kept relatively fixed, so that the dirt on the sponge block can be gathered at the end of the sponge block close to the hydraulic cylinder, which is convenient for cleaning the dirt on the sponge block later. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the cleaning box of the present invention installed on the hydraulic cylinder;

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of the cleaning box of the present invention;

[0026] Figure 3 is a side cross-sectional view of the cleaning box of the present invention;

[0027] Figure 4 It is a front cross-sectional view of the cleaning box of the present invention;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the rotating shaft of the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the cross block and the shift block of the present invention;

[0030] Figure 7 It is a partial enlarged view of A of the present invention;

[0031] Figure 8It is a partial enlarged view of B of the present invention;

[0032] Fig. 9 It is a simple schematic diagram of the moving trajectory of the rotating block of the present invention.

[0033] In the figure: 1. hydraulic cylinder; 2. piston rod; 3. cleaning box; 4. liquid storage box; 5. circular box; 6. sliding plate; 7. cross block; 8. sliding block; 9. rotating shaft; 10. rotating block; 11. brush; 12. sponge block; 13. plug block; 14. elastic rope; 15. connecting rod; 16. spring; 17. shift block; 18. compression spring; 19. absorbent cotton; 20. fixed plate; 23. rangefinder; 24. inclined slot; 25. rotating slot; 26. shift rod. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figures 1 to 9 The present invention provides a technical solution: a hydraulic cylinder for a household textile machine, comprising a hydraulic cylinder 1, a cleaning box 3 with a hollow interior is installed on one side of the hydraulic cylinder 1, a piston rod 2 of the hydraulic cylinder 1 passes through the cleaning box 3, and two groups of wiping components for cleaning the outer wall of the piston rod 2 are arranged in the cleaning box 3;

[0036] The two groups of erasing components have two states: state one, the two groups of erasing components and the piston rod 2 are in a clamped state; state two, the two groups of erasing components and the piston rod 2 are in a separated state;

[0037] The invention also includes a switching component, which is used for driving the two groups of erasing components to switch back and forth between two states.

[0038] A hydraulic cylinder is a mechanical device that converts hydraulic energy into linear motion. It has smooth motion, easy maintenance, precise control and strong adaptability. Therefore, it is mostly used as a power supply device for textile machinery. However, in a textile machinery production workshop, due to other influences such as production materials or processing technology, dust or textile fibers will float in the workshop, and the textile fibers or dust will be adsorbed on the outer wall of the hydraulic cylinder piston rod, and enter the hydraulic cylinder with the reciprocating movement of the piston rod, causing damage to the seal in the hydraulic cylinder. The hydraulic oil on the outer wall of the piston rod will make it easier for dust or textile fibers to be adsorbed on the outer wall of the piston rod, so that these dirts enter the hydraulic cylinder and cause contamination to the hydraulic oil, reducing the viscosity of the hydraulic oil, and further causing the hydraulic cylinder seal to fail. Therefore, a hydraulic cylinder for textile machinery that can clean the outer wall of the piston rod is needed. The specific implementation method is as follows:

[0039] When the device is in use, the hydraulic cylinder 1 is first started to make the piston rod 2 reciprocate in the hydraulic cylinder 1. When the piston rod 2 extends from the hydraulic cylinder 1 and passes through the cleaning box 3, the switching component will switch the erasing component to state two, that is, the two groups of erasing components move away from each other and disengage from the piston rod 2. When the piston rod 2 is retracted into the hydraulic cylinder 1 from the outside, the switching component drives the two groups of erasing components to switch to state one, that is, the two groups of erasing components approach each other to clamp the piston rod 2, and through the friction between the piston rod 2 and the erasing component, the erasing component scrapes off the textile fibers and dust attached to the outer wall of the piston rod 2 and the hydraulic oil leaked from the hydraulic cylinder 1, thereby completing the cleaning of the outer wall of the piston rod 2, and then repeating the above steps.

[0040] In this way, the two groups of erasing components are driven to switch back and forth between the two states by the switching component, and cooperate with the reciprocating movement of the piston rod 2, so that the erasing components can be away from the piston rod 2 when the piston rod 2 is extended, and can clean the outer wall of the piston rod 2 when the piston rod 2 is retracted. That is, after the piston rod 2 is extended and drives the external textile machinery to work, the textile fibers and dust mixed with oil on the outer wall of the piston rod 2 can be scraped off. Since the two groups of erasing components are away from each other and completely separated from the piston rod 2 when the piston rod 2 is extended, the dirt that was previously scraped off and accumulated on the end of the erasing component closest to the piston rod 2 will not cause secondary pollution to the outer wall that has been cleaned due to its long-term contact with the piston rod 2, thereby achieving the purpose of highly cleaning the outer wall of the piston rod 2.

[0041] Furthermore, two groups of erasing components are symmetrically distributed about the piston rod 2 in the cleaning box 3, and the erasing components include a circular box 5 slidably installed in the cleaning box 3, a sliding plate 6 is slidably installed in the circular box 5, the sliding plate 6 is rotatably connected to the inner wall of the cleaning box 3 by a connecting rod 15, and a wiping portion is provided on the side of the sliding plate 6 close to the piston rod 2.

[0042] According to the above embodiment, it can be known that when the piston rod 2 extends from the hydraulic cylinder 1, the circular box 5 slides in the direction away from the hydraulic cylinder 1. At this time, the sliding plate 6 slides in the circular box 5 under the pulling force of the connecting rod 15, driving the wiping parts on both sides to move relatively away from each other, so that the two groups of wiping components are switched to state two. When the piston rod 2 retracts toward the hydraulic cylinder 1, the circular box 5 slides in the direction of the hydraulic cylinder 1, driving the sliding plates 6 on both sides to move closer to each other, so that the wiping parts on both sides move closer to each other, so that the two groups of wiping components are switched to state one, that is, the outer wall of the piston rod 2 is wrapped, and the dirt on the outer wall of the piston rod 2 is scraped off by the contraction of the piston rod 2.

[0043] In this way, the two groups of erasing components can be switched between state 1 and state 2 by sliding the circular box 5 back and forth in the cleaning box 3, so that the cleaning part can be separated from the piston rod 2 after cleaning the piston rod 2, thereby preventing the outer wall of the piston rod 2 from being contaminated with dirt again.

[0044] Furthermore, the wiping part includes a rotating groove 25 provided on the surface of the sliding plate 6, a rotating shaft 9 is rotatably mounted in the rotating groove 25, a rotating block 10 is fixedly mounted on the outer wall of the rotating shaft 9, and sponge blocks 12 are fixedly mounted on both sides of the rotating block 10;

[0045] It also includes a locking mechanism, which is used to lock the rotating block 10.

[0046] According to the above embodiment, it can be known that when the two groups of sliding plates 6 are close to each other, the sponge blocks 12 on the side walls of the rotating block 10 are close to each other, wrapping the outer wall of the piston rod 2 to clean the outer wall of the piston rod 2. When the two groups of sliding plates 6 are away from each other, the rotating block 10 is driven to rotate by the external structure, so that the rotating block 10 is flipped 180 degrees. Even if the sponge blocks 12 on both sides of the sliding plate 6 are swapped with each other, and then cooperated with the locking mechanism, the two groups of rotating blocks 10 can remain parallel to each other when they are driven by the two groups of sliding plates 6 to approach each other.

[0047] In this way, by driving the rotating block 10 through the external structure, the positions of the sponge block 12 with dirt and the clean sponge block 12 can be swapped when the piston rod 2 extends outward, and then cooperate with the locking mechanism to make the two groups of rotating blocks 10 close to each other remain parallel to each other when the piston rod 2 contracts inward, so that the two sponge blocks 12 close to each other can remain parallel to the axis of the piston rod 2 when wrapping the outer wall of the piston rod 2, so that the contact area between the two sponge blocks 12 and the outer wall of the piston rod 2 is maximized and the position can be kept relatively fixed, so that the dirt on the sponge block 12 can be gathered at the end of the sponge block 12 close to the hydraulic cylinder 1, which is convenient for cleaning the dirt on the sponge block 12 later.

[0048] Furthermore, the parts of the rotating shaft 9 passing through the two sides of the sliding plate 6 are fixedly installed with cross blocks 7, and the cross block 7 is provided with four convex strips, wherein two opposite convex strips are provided with sliding grooves inside, and sliding blocks 8 are slidably installed in the two sliding grooves, and the ends of the two sliding blocks 8 are provided with inclined surfaces parallel to each other, and a spring 16 is fixedly connected between the sliding block 8 and the inner wall of the sliding groove, and the other two opposite convex strips are set as a lever 26;

[0049] A shift block 17 is fixedly mounted on the inner wall of the circular box 5 , a groove for the shift rod 26 to be rotated in or out is provided in the middle of the shift block 17 , and an inclined groove 24 which matches the inclined surface of the sliding block 8 is provided on the outer wall of the shift block 17 .

[0050] According to the above embodiment, an embodiment is provided to make the rotating block 10 flip 180 degrees. Figure 5 and Figure 6 When the two sets of sliding plates 6 slide away from each other in the circular box 5, the cross blocks 7 on both sides of the rotating shaft 9 slide together with the sliding plates 6 until the sliding block 8 contacts the shifting block 17. Under the resistance of the shifting block 17, the cross block 7 drives the rotating shaft 9 to rotate 90 degrees clockwise, so that a shifting rod 26 is rotated into the groove in the shifting block 17. As the sliding plate 6 continues to slide, the shifting rod 26 is blocked by the groove, so that the cross block 7 drives the rotating shaft 9 to continue to rotate 90 degrees clockwise, and the rotating block 10 can be turned 180 degrees, so as to achieve the purpose of swapping the positions of the sponge blocks 12 on both sides of the rotating block 10.

[0051] When the two sets of sliding plates 6 approach each other, the sliding block 8 and the shifting block 17 contact each other. Since the inclined surface at the end of the sliding block 8 fits with the inclined groove 24, the sliding block 8 can slide on the inclined groove 24 and shrink toward the center of the rotating shaft 9 while sliding. Then, it pops out again into the groove with the cooperation of the spring 16, and then continues to repeat the shrinking and popping out process.

[0052] In this way, through the mutual cooperation between the cross block 7 and the shift block 17, the sponge blocks 12 on both sides of the rotating block 10 can be swapped with each other when the piston rod 2 is extended, so that the sponge block 12 with dirt and the clean sponge block 12 can be switched with each other, and through the fit between the sliding block 8 and the inclined groove 24, when the piston rod 2 is retracted, the rotating block 10 is prevented from flipping 180 degrees again, so as to ensure that the clean sponge blocks 12 can be close to each other to wrap the outer wall of the piston rod 2, thereby enhancing the cleaning effect of the wiping part on the outer wall of the piston rod 2, and further avoiding the outer wall of the piston rod 2 from being contaminated by the sponge blocks 12.

[0053] Furthermore, a fixing plate 20 is installed on the inner wall of the cleaning box 3, and a brush 11 is fixedly installed on the side wall of the fixing plate 20;

[0054] The utility model also comprises a liquid injection mechanism, and the liquid injection mechanism is used for injecting cleaning agent into the brush 11 .

[0055] According to the above embodiment, when the piston rod 2 extends from the hydraulic cylinder 1, the circular box 5 slides in the direction away from the hydraulic cylinder 1, driving the sliding plates 6 on both sides to move relatively away from each other. When the sliding plates 6 slide in the circular box 5, they cooperate with the flip mechanism to rotate 180 degrees. At this time, the sponge block 12 with oil stains and textile fibers and the clean sponge block 12 are swapped with each other, so that the sponge block 12 with oil stains and textile fibers is close to the side wall of the cleaning box 3. As the circular box 5 continues to slide and cooperates with the sliding plates 6, the sponge block 12 with oil stains and textile fibers is driven to rub obliquely with the brush 11. For details, see Fig. 9 Since oil stains and textile fibers are accumulated at a2 on the sponge block 12, when a2 of the sponge block 12 moves to a1, it has an oblique scraping effect on a2, making it easier for the dirt to be brushed away by the brush 11. When the sliding plates 6 on both sides are relatively close, a1 on the sponge block 12 passes through the brush 11 again to reach a2. Through two scrapings in different directions, the cleaning effect of the textile fibers on the sponge block 12 is enhanced.

[0056] Furthermore, the liquid injection mechanism includes a liquid storage box 4 fixed to the outer wall of the cleaning box 3 , and absorbent cotton 19 is arranged in the liquid storage box 4 . The absorbent cotton 19 is inserted into the center of the bristles of the brush 11 .

[0057] According to the above embodiment, a specific embodiment of a liquid injection mechanism is provided. Figure 4 and Figure 8 The absorbent cotton 19 absorbs the detergent in the liquid storage box 4 onto the bristles of the brush 11 through capillary action, and the absorbent cotton 19 is arranged to be higher than the bristles of the brush 11, so that the detergent can penetrate into the bristles. Among them, the detergent preferably uses anhydrous ethanol, and the oil stains on the sponge block 12 are dissolved through the dissolving effect of alcohol on grease, thereby preventing the evaporation of oily and water particles and increasing the viscosity, so that the bristles cannot brush the oil stains off the sponge block 12.

[0058] Furthermore, magnets are installed on both sides of the rotating groove 25, and magnetic blocks attracted to the magnets are fixedly installed on both sides of the rotating block 10.

[0059] According to the above embodiment, since the two groups of sponge blocks 12 need to be close to each other to wrap the outer wall of the piston rod 2, in order to avoid the contact surfaces of the two groups of sponge blocks 12 being non-parallel to each other, causing the position of the dirt accumulation to change, the magnets on both sides of the rotating groove 25 attract the magnetic blocks on both sides of the rotating block 10, so that the rotating block 10 can still remain perpendicular to the piston rod 2 without external force after disengaging from the locking mechanism, thereby avoiding the rotating block 10 from deflecting prematurely before passing the shift block 17, causing the device to get stuck or the rotating block 10 to be unable to rotate to a predetermined state.

[0060] Furthermore, the locking mechanism includes slots opened on both sides of the rotating block 10, and also includes an empty slot opened on the inner wall of the rotating groove 25 opposite to the slot, in which an insert block 13 is slidably installed, a compression spring 18 is connected between the insert block 13 and the empty slot, and an elastic rope 14 is also fixedly connected to the end of the insert block 13, and the part of the elastic rope 14 that passes through the sliding plate 6 is fixedly connected to the inner wall of the cleaning box 3.

[0061] According to the above embodiment, a specific embodiment of a locking mechanism is provided. Figure 4 and Figure 7 When the two groups of sponge blocks 12 move away from each other, the sliding plate 6 drives the plug block 13 to completely disengage from the empty slot under the action of the elastic rope 14 and completely retract into the slot. At this time, the rotating block 10 can rotate 180 degrees along with the rotating shaft 9, so that the sponge blocks 12 on both sides of the rotating block 10 are swapped with each other, even if the sponge block 12 stained with dirt is switched with the sponge block 12 cleaned by the brush 11. When the two groups of sponge blocks 12 approach each other, the sliding plate 6 approaches the piston rod 2 until the plug block 13 re-enters the empty slot under the action of the compression spring 18, thereby completing the locking of the rotating block 10.

[0062] In this way, by locking the rotating block 10 through the insert block 13, the rotating block 10 will not deflect when the sponge block 12 wraps the outer wall of the piston rod 2, and the elastic rope 14 cooperates with the insert block 13 to release the lock on the rotating block 10, providing a basis for the subsequent switching between the two groups of sponge blocks 12.

[0063] Furthermore, the switching assembly includes a driving member fixedly installed in the cleaning box 3 for driving the circular box 5 to slide vertically. A rangefinder 23 capable of detecting the moving direction of the piston rod 2 is fixedly installed in the cleaning box 3, and the rangefinder 23 and the driving member are controlled by electrical signals.

[0064] According to the above embodiment, a specific embodiment of a switching component is provided, in which the moving direction of the piston rod 2 is detected by the distance meter 23. When the distance meter 23 detects that the piston rod 2 extends from the hydraulic cylinder 1, the driving member is controlled by an electrical signal to push the circular box 5 to slide upward in the cleaning box 3. When the distance meter 23 detects that the piston rod 2 retracts toward the hydraulic cylinder 1, the driving member drives the circular box 5 to slide downward, so as to achieve the purpose of sliding the circular box 5 in the cleaning box 3, thereby completing the switching of the two groups of erasing components.

[0065] The driving member can be driven by installing an electric slider and a slide rail between the circular box 5 and the cleaning box 3 .

[0066] Furthermore, a damping is provided at the rotation connection between the rotation shaft 9 and the rotation groove 25 .

[0067] According to the above embodiment, when the sliding plate 6 slides a certain distance in the circular box 5, the plug block 13 is disengaged from the empty slot under the action of the elastic rope 14 and is completely retracted into the slot. At this time, the rotating block 10 can rotate along with the rotating shaft 9. The damping provided at the rotating connection between the rotating shaft 9 and the rotating slot 25 can prevent the rotating block 10 from being deflected due to vibration during the operation of the device, causing the wiping surface of the sponge block 12 to be not parallel to the axis of the piston rod 2, so that the contact surface and the separation surface of the two groups of sponge blocks 12 and the piston rod 2 are changed, thereby changing the position of the dirt accumulation and reducing the cleaning effect of the cleaning component on the dirt.

[0068] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and the drawings can also be directly processed according to the existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0069] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic cylinder for a household textile machine, comprising a hydraulic cylinder (1), characterized in that: A cleaning box (3) with a hollow interior is installed on one side of the hydraulic cylinder (1); the piston rod (2) of the hydraulic cylinder (1) passes through the cleaning box (3); and two sets of wiping components for cleaning the outer wall of the piston rod (2) are arranged inside the cleaning box (3); The two groups of erasing components have two states: in state one, the two groups of erasing components and the piston rod (2) are in a clamped state; and in state two, the two groups of erasing components and the piston rod (2) are in a separated state. The cleaning machine also comprises a switching assembly, which is used to drive the two groups of erasing assemblies to switch back and forth between two states; the two groups of erasing assemblies are symmetrically distributed in the cleaning box (3) about the piston rod (2); the erasing assembly comprises a circular box (5) slidably mounted in the cleaning box (3); a sliding plate (6) is slidably mounted in the circular box (5); the sliding plate (6) is rotatably connected to the inner wall of the cleaning box (3) by a connecting rod (15); a wiping portion is provided on a side of the sliding plate (6) close to the piston rod (2); the wiping portion comprises a rotating groove (25) provided on the surface of the sliding plate (6); a rotating shaft (9) is rotatably mounted in the rotating groove (25); a rotating block (10) is fixedly mounted on the outer wall of the rotating shaft (9); sponge blocks (12) are fixedly mounted on both sides of the rotating block (10); It also includes a locking mechanism, which is used to lock the rotating block (10); the parts of the rotating shaft (9) passing through the two sides of the sliding plate (6) are fixedly installed with cross blocks (7), the cross block (7) is provided with four convex strips, wherein two opposing convex strips are provided with sliding grooves, and sliding blocks (8) are slidably installed in the two sliding grooves, and the ends of the two sliding blocks (8) are provided with inclined surfaces parallel to each other, and a spring (16) is fixedly connected between the sliding block (8) and the inner wall of the sliding groove, and the other two opposing convex strips are set as a shifting rod (26); A shift block (17) is fixedly mounted on the inner wall of the circular box (5); a groove is provided in the middle of the shift block (17) for the shift rod (26) to be rotated in or out; and an inclined groove (24) is provided on the outer wall of the shift block (17) to fit with the inclined surface of the sliding block (8); The cleaning box (3) is provided with a fixing plate (20) mounted on the inner wall thereof, and a brush (11) is fixedly mounted on the side wall of the fixing plate (20); and further comprises a liquid injection mechanism, the liquid injection mechanism being used to inject a cleaning agent into the brush (11); The locking mechanism comprises slots formed on both sides of the rotating block (10), and also comprises empty slots formed on the inner wall of the rotating slot (25) and opposite to the slots, an insert block (13) being slidably mounted in the empty slot, a compression spring (18) being connected between the insert block (13) and the empty slot, an elastic rope (14) being fixedly connected to the end of the insert block (13), and a portion of the elastic rope (14) passing through the sliding plate (6) being fixedly connected to the inner wall of the cleaning box (3); The switching assembly comprises a driving member fixedly mounted in the cleaning box (3) and used for driving the circular box (5) to slide vertically for adjustment; a distance meter (23) capable of detecting the moving direction of the piston rod (2) is fixedly mounted in the cleaning box (3), and an electrical signal is controlled between the distance meter (23) and the driving member; A damping is provided at the rotation connection between the rotation shaft (9) and the rotation groove (25).

2. The hydraulic cylinder for home textile machinery according to claim 1, characterized in that: The liquid injection mechanism comprises a liquid storage box (4) fixed to the outer wall of the cleaning box (3), and absorbent cotton (19) is arranged in the liquid storage box (4). The absorbent cotton (19) is inserted into the center of the bristles of the brush (11).

3. The hydraulic cylinder for home textile machinery according to claim 2, characterized in that: Magnets are installed on both sides of the rotating groove (25), and magnetic attraction blocks that attract the magnets are fixedly installed on both sides of the rotating block (10).

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