Quickly dismountable drainage plug linkage device

Abstract

The application discloses a quick dismounting drainage plug linkage device, which comprises a drainage plug, a pull rod assembly, a lever piece and a joint mechanism. The pull rod assembly comprises a pull rod and a connecting rod which are operatively connected with each other. The lever piece has a first end and a second end, and the second end of the lever piece is configured to be suitable for operating the drainage plug. The joint mechanism has a first channel, a second channel, a first clamping mechanism and a second clamping mechanism. The connecting rod is inserted into the first channel. A plurality of protruding teeth are arranged on one side of the connecting rod at intervals. A clamping groove is arranged between adjacent protruding teeth. The first clamping mechanism can be clamped into any one of the clamping grooves. The first end of the lever piece is inserted into the second channel. A plurality of clamping holes are arranged on the first end of the lever piece at intervals. The second clamping mechanism can be clamped into any one of the clamping holes. The application has the advantages of quick dismounting, simple, convenient and quick adjustment of the lever piece and / or the connecting rod, and high connection stability between the lever piece, the connecting rod and the joint mechanism.

Description

TECHNICAL FIELD

[0001] The present invention relates to a drain plug linkage device, and in particular to a quick release drain plug linkage device. BACKGROUND

[0002] In a vessel such as a bath, a basin or a sink, it is necessary to install a drain, also known as a drain device, to achieve water storage or drainage in the vessel. Such a drain device is usually in the form of a drain plug linkage device. For example, in an existing drain device, a vessel is connected to a drain pipe through a flow outlet, and a drain plug is provided near the flow outlet, the drain plug being connected to one end of an operating rod such as a lever member, and the other end of the lever member being connected to a downwardly extending pull rod member, so that the drain plug can be moved between positions of closing and opening the flow outlet by operating the pull rod member, and water storage or drainage of the vessel such as a bath, a basin or a sink is achieved.

[0003] Referring to Chinese patent document CN103967082B, it discloses a drain plug linkage device, comprising: a drain plug; a pull rod assembly comprising a pull rod and a connecting rod which are operably connected to each other; a lever member; and an engagement mechanism. One of the connecting rod and the lever member has a plurality of through holes and the engagement mechanism is slidably installed therein, and the other of the connecting rod and the lever member is configured to be able to pass through one of the through holes and has a plurality of axially spaced circumferential ridges and a plurality of grooves defined between the circumferential ridges, and the engagement mechanism is configured to prevent the other of the connecting rod and the lever member from moving axially relative to the through hole when sliding into a position engaging the grooves. However, the patent still has the following technical problems: firstly, assuming that the plurality of through holes are provided on the connecting rod, the lever member passes through any one of the plurality of through holes, when the height of the lever member needs to be adjusted, the engagement mechanism needs to be first slid upward, then the lever member is taken out of a certain through hole, and then the lever member is inserted into another through hole, and finally the engagement mechanism is slid downward to lock the lever member, if the height is still not suitable, then the above steps are operated again, the height adjustment process is complicated, inconvenient and not fast; assuming that the plurality of through holes are provided on the lever member, the connecting rod passes through any one of the plurality of through holes, when the transverse position of the connecting rod on the lever member needs to be adjusted, the adjustment mode is similar to the above adjustment mode, and the transverse position adjustment process is also complicated, inconvenient and not fast; secondly, the drain plug linkage device needs to frequently operate the pull rod assembly, drive the connecting rod to rise or fall through the pull rod, drive the lever member to swing up and down through the connecting rod, and finally drive the drain plug to rise or fall through the lever member, to realize the water storage or drainage of the container. Since the engagement mechanism is slidably installed on the connecting rod or the lever member, and the lever member will exert a certain thrust on the engagement mechanism during swinging, the engagement mechanism is easily loosened after long-term or multiple swinging, the grooves between the engagement mechanism and the circumferential ridges are loosened, and the connection stability of the connecting rod or the lever member and the engagement mechanism is not good.

[0004] Referring to Chinese patent document CN110984311A, a drain plug linkage device is disclosed, including: a pull rod assembly, an operating rod, a drain plug, and a drain pipe. The drain plug is housed at the upper end of the drain pipe. The pull rod assembly is linked to the operating rod, and the operating rod is linked to move the drain plug up and down. The pull rod assembly includes a pull rod and a connecting sleeve. The pull rod and the connecting sleeve are linked. The operating rod has multiple recessed parts at intervals, and the connecting sleeve has multiple positioning parts with openings at intervals. One of the locking parts of the operating rod selectively passes through one of the openings and locks into the corresponding positioning part. Although this patent does not require the pull rod assembly or operating rod to be completely withdrawn when adjusting the position of the pull rod assembly and the operating rod, it requires the positioning part of the connecting sleeve to engage with the locking part of the operating rod. Since the drain plug linkage device requires frequent operation of the pull rod assembly, which drives the operating rod to swing up and down, the connection between the operating rod and the pull rod assembly is prone to loosening after long-term or repeated swinging, resulting in insufficient stability of the connection between the operating rod and the pull rod assembly. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a quick-disassembly and assembly drain plug linkage device to address the shortcomings of the prior art. This drain plug linkage device is quick to assemble and disassemble, and when adjusting the position of the lever and / or connecting rod, it is not necessary to completely pull out the lever and / or connecting rod, making the adjustment of the position of the lever and / or connecting rod simple, convenient, and quick. The lever and connecting rod of this drain plug linkage device are individually engaged by a coupling mechanism, and the lever and connecting rod are also individually engaged by a coupling mechanism. The lever and connecting rod are not directly connected, ensuring that the positional relationship between the lever and connecting rod is not affected by the long-term or repeated swinging of the lever, and the connection stability between the lever, connecting rod, and coupling mechanism is high.

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is: a quick-release drain plug linkage device, comprising a drain plug, a pull rod assembly, a lever, and a connecting mechanism. The pull rod assembly includes a pull rod and a connecting rod that are operably connected to each other. The connecting rod is operably connected to the connecting mechanism. The lever has a first end and a second end. The first end of the lever is operably connected to the connecting mechanism, and the second end of the lever is configured to operate the drain plug. The connecting mechanism has a first channel, a second channel, a first locking mechanism, and a second locking mechanism. The connecting rod is inserted into the first channel. A plurality of protrusions are spaced apart on one side of the connecting rod, and locking grooves are provided between adjacent protrusions. The first locking mechanism can be locked into any one of the locking grooves. The first end of the lever is inserted into the second channel. A plurality of locking holes are spaced apart on the first end of the lever, and the second locking mechanism can be locked into any one of the locking holes.

[0007] Preferably, the engagement mechanism is provided with a first spring positioning post and a first through hole; the first clamping mechanism comprises a first sliding post and a first spring, the first sliding post has an inner end and an outer end, the first spring is installed on the first spring positioning post, one end of the first spring is connected with the inner end of the first sliding post, the inner end of the first sliding post is provided with a clamping protrusion outside, the clamping protrusion is clamped and matched with the clamping groove, the outer end of the first sliding post is slidably installed in the first through hole, and the outer end of the first sliding post has a first pressing portion which extends out of the first through hole; when the first pressing portion is pressed, the first sliding post can compress the first spring, so that the clamping protrusion is separated from the clamping groove; when the pressing on the first pressing portion is released, the first sliding post can move outward under the elastic action of the first spring, so that the clamping protrusion is clamped into the clamping groove.

[0008] Preferably, the protruding teeth are square protruding teeth, the clamping groove is a square clamping groove, and the clamping protrusion is a square clamping protrusion; the inner end of the first sliding post is provided with a first spring hole, and one end of the first spring is installed in the first spring hole; the inner end of the first sliding post is provided with a first rib outside, and the hole wall of the first through hole is provided with a first sliding groove corresponding to the first rib; and the first rib is slidably installed in the first sliding groove.

[0009] Preferably, the engagement mechanism is provided with a second spring positioning post and a second through hole; the second clamping mechanism comprises a second sliding post, a clamping head and a second spring, the second sliding post has an inner end and an outer end, the second spring is installed on the second spring positioning post, one end of the second spring is connected with the inner end of the second sliding post, the inner end of the second sliding post is connected with the clamping head outside, the clamping head is clamped and matched with the clamping hole, the outer end of the second sliding post is movably installed in the second through hole, and the outer end of the second sliding post has a second pressing portion which extends out of the second through hole; when the second pressing portion is pressed, the second sliding post can compress the second spring, so that the clamping head is separated from the clamping hole; when the pressing on the second pressing portion is released, the second sliding post can move outward under the elastic action of the second spring, so that the clamping head is clamped into the clamping hole.

[0010] Preferably, the clamping hole is a circular clamping hole, and the clamping head is a cylindrical clamping head; the inner end of the second sliding post is provided with a second spring hole, and one end of the second spring is installed in the second spring hole; the engagement mechanism is provided with a clamping head positioning post, the clamping head is provided with a clamping head positioning hole, and the clamping head positioning post is slidably inserted into the clamping head positioning hole; the inner end of the second sliding post is provided with a second rib outside, and the hole wall of the second through hole is provided with a second sliding groove corresponding to the second rib; and the second rib is slidably installed in the second sliding groove.

[0011] Preferably, the upper end of the connecting rod is provided with a pull rod connecting piece, the pull rod connecting piece is provided with a central insertion hole, a cavity and an elastic clamping slider; the cavity is transversely arranged, the elastic clamping slider is slidably installed in the cavity, the central insertion hole is vertically arranged, the lower end of the pull rod is inserted into the central insertion hole and passes through the elastic clamping slider, and the lower end of the pull rod is clamped and matched with the elastic clamping slider.

[0012] Preferably, the elastic clamping slider has an inner end and an outer end, the inner end of the elastic clamping slider is provided with a clamping block, the clamping block is provided with a waist-shaped clamping hole, and the outer end of the elastic clamping slider is provided with a third pressing portion extending out of the cavity; the inner end of the elastic clamping slider is further connected with an elastic sheet, the elastic sheet elastically abuts against the inner wall of the cavity; the lower end of the pull rod passes through the waist-shaped clamping hole, the lower end of the pull rod is provided with an annular groove, and the annular groove is clamped and matched with the hole wall of the waist-shaped clamping hole; when the third pressing portion is pressed, the elastic clamping slider slides inwardly and transversely, the elastic sheet is forced to elastically deform, and the hole wall of the waist-shaped clamping hole is separated from the annular groove; when the pressing on the third pressing portion is released, the elastic clamping slider slides outwardly and transversely under the elastic action of the elastic sheet, and the hole wall of the waist-shaped clamping hole is clamped into the annular groove.

[0013] Preferably, the quick dismounting drain plug linkage device further comprises a drain pipe, one side of the drain pipe is provided with a connecting port, the inner side of the connecting port is provided with a boss, the lower end of the drain plug is provided with an insertion hole and two notches, and the two notches are symmetrical to each other; the drain plug is movably installed in the drain pipe, and any one of the two notches abuts against the inner side of the boss; the second end of the lever member passes through the connecting port inwardly and is inserted into the insertion hole of the drain plug.

[0014] Preferably, the quick dismounting drain plug linkage device further comprises a sleeve assembly and a spherical portion, the sleeve assembly is detachably connected with the connecting port, the spherical portion is rotatably arranged in the sleeve assembly, and the spherical portion is fixed or integrally formed to the lever member between the first end and the second end of the lever member.

[0015] Preferably, the outer end of the connecting port of the drain pipe is provided with two clamping grooves in the circumferential direction of the connecting port; the sleeve assembly comprises a connecting sleeve and a sleeve, one end of the connecting sleeve is connected with the connecting port of the drain pipe, a first waterproof ring is arranged between the connecting sleeve and the connecting port, the outer side of the connecting sleeve is provided with two clamping blocks, the clamping blocks can be clamped into the corresponding clamping grooves when the connecting sleeve is rotated forwardly, and the clamping blocks can be pushed out of the clamping grooves when the connecting sleeve is rotated reversely; the other end of the connecting sleeve is connected with the sleeve, the spherical portion is rotatably arranged in the sleeve, the outer side of the sleeve is provided with a pulling block, and a second waterproof ring is arranged between the other end of the connecting sleeve and the spherical portion.

[0016] The beneficial effects of the present application are: firstly, the connecting rod of the present application is inserted into the first channel of the joint mechanism and clamped by the first clamping mechanism, the lever member of the present application is inserted into the second channel of the joint mechanism and clamped by the second clamping mechanism, so that the connecting rod, the lever member and the joint mechanism are quickly disassembled; in addition, the pull rod and the connecting rod are operatively connected, and the lever member and the drain plug are operatively connected, so that the pull rod and the connecting rod are quickly disassembled, and the lever member and the drain plug are quickly disassembled; secondly, since the connecting rod is inserted into the first channel of the joint mechanism, a plurality of protrusions are arranged on one side of the connecting rod, and a clamping groove is arranged between adjacent protrusions, and the first clamping mechanism can be clamped into any one of the clamping grooves, so when the connecting position between the connecting rod and the joint mechanism needs to be adjusted, the connecting rod does not need to be completely pulled out, only the first clamping mechanism needs to be loosened from the clamping groove, the connecting rod can be pulled out and adjusted in the first channel of the joint mechanism, after the position is adjusted, the first clamping mechanism is clamped into the clamping groove, so that the connecting rod can be fixed, so that the position adjustment process of the connecting rod is simple, convenient and fast; thirdly, since the first end of the lever member is inserted into the second channel of the joint mechanism, a plurality of clamping holes are arranged on the first end of the lever member, and the second clamping mechanism can be clamped into any one of the clamping holes, so when the connecting position between the lever member and the joint mechanism needs to be adjusted, the lever member does not need to be completely pulled out, only the second clamping mechanism needs to be loosened from the clamping hole, the lever member can be pulled out and adjusted in the second channel of the joint mechanism, after the position is adjusted, the second clamping mechanism is clamped into the clamping hole, so that the lever member can be fixed, so that the position adjustment process of the lever member is simple, convenient and fast; fourthly, since the connecting rod of the present application is inserted into the first channel of the joint mechanism and clamped by the first clamping mechanism, and the lever member of the present application is inserted into the second channel of the joint mechanism and clamped by the second clamping mechanism, the lever member is clamped by the joint mechanism alone, and the connecting rod is also clamped by the joint mechanism alone, the lever member and the connecting rod are not directly connected, so that the positional relationship between the lever member and the connecting rod is not affected by the long-term or repeated swinging of the lever member, and the connection stability between the lever member, the connecting rod and the joint mechanism is high. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of the overall structure of the present application.

[0018] Figure 2 It is a dispersion structure diagram of the present application.

[0019] Figure 3 It is another angle of the dispersion structure diagram of the present application.

[0020] Figure 4 It is a longitudinal sectional view structure diagram of the present application.

[0021] Figure 5 is a structural perspective view of the engagement mechanism.

[0022] Figure 6 is another structural perspective view of the engagement mechanism.

[0023] Figure 7 is a longitudinal sectional structural view of the engagement mechanism.

[0024] Figure 8 is a structural view of the first clamping mechanism.

[0025] Figure 9 is a structural view of the second clamping mechanism.

[0026] Figure 10 is a partial structural view of the pull rod connector.

[0027] Figure 11 is another partial structural view of the pull rod connector.

[0028] Figure 12 is a partial structural view of the pull rod connector. Figure 4 is a partial enlarged view of part A in the figure.

[0029] Figure: 1. Drain plug; 11. Plug hole; 12. Notch; 2. Pull rod assembly; 21. Pull rod; 211. Annular groove; 22. Connecting rod; 22. Protruding tooth; 222. Clamping groove; 23. Pull rod connector; 231. Center plug hole; 232. Cavity; 233. Elastic clamping slider; 2331. Clamping block; 2332. Waist-shaped clamping hole; 2333. Third pressing part; 2334. Spring piece; 2301. First shell; 2302. Second shell; 3. Lever; 31. First end; 311. Clamping hole; 32. Second end; 33. Spherical part; 4. Engagement mechanism; 41. First channel; 42. Second channel; 43. First clamping mechanism; 431. First sliding column; 432. First spring; 433. Clamping block; 434. First pressing part; 435. First spring hole; 436. First rib; 44. Second clamping mechanism; 441. Second sliding column; 442. Clamping head; 443. Second spring; 444. Second pressing part; 445. Second spring hole; 446. Clamping head positioning hole; 447. Second rib; 45. First spring positioning column; 46. First through hole; 461. First sliding groove; 47. Second spring positioning column; 48. Second through hole; 481. Second sliding groove; 49. Clamping head positioning column; 401. First cover; 402. Second cover; 5. Drain pipe; 51. Connection port; 511. Boss; 52. Clamping groove; 6. Sleeve assembly; 61. Connection sleeve; 611. Clamping block; 62. Sleeve; 621. Lever block; 63. First waterproof ring; 64. Second waterproof ring. DETAILED DESCRIPTION

[0030] The structural principle and working principle of the application will be further explained in detail below with reference to the drawings.

[0031] As Figures 1-9 shown in the drawings, the application is a quick dismounting drain plug linkage device, which comprises a drain plug 1, a pull rod assembly 2, a lever member 3 and an engaging mechanism 4. The pull rod assembly 2 comprises a pull rod 21 and a connecting rod 22 which are operatively connected with each other. The connecting rod 22 is operatively connected with the engaging mechanism 4. The lever member 3 has a first end 31 and a second end 32. The first end 31 of the lever member 3 is operatively connected with the engaging mechanism 4. The second end 32 of the lever member 3 is configured to be suitable for operating the drain plug 1. The engaging mechanism 4 has a first passage 41, a second passage 42, a first clamping mechanism 43 and a second clamping mechanism 44. The connecting rod 22 is inserted into the first passage 41. A plurality of protruding teeth 221 are arranged on one side of the connecting rod 22. A clamping recess 222 is arranged between adjacent protruding teeth 221. The first clamping mechanism 43 can be clamped into any one of the clamping recesses 222. The first end 31 of the lever member 3 is inserted into the second passage 42. A plurality of clamping holes 311 are arranged on the first end 31 of the lever member 3. The second clamping mechanism 44 can be clamped into any one of the clamping holes 311.

[0032] As Figures 1-9 shown in the drawings, the engaging mechanism 4 is provided with a first spring positioning column 45 and a first through hole 46. The first clamping mechanism 43 comprises a first sliding column 431 and a first spring 432. The first sliding column 431 has an inner end and an outer end. The first spring 432 is installed on the first spring positioning column 45. One end of the first spring 432 is connected with the inner end of the first sliding column 431. A clamping protruding block 433 is protruded on the outer side of the inner end of the first sliding column 431. The clamping protruding block 433 is clamped and matched with the clamping recess 222. The outer end of the first sliding column 431 is slidably installed in the first through hole 46. The outer end of the first sliding column 431 has a first pressing part 434 which extends out of the first through hole 46. When the first pressing part 434 is pressed, the first sliding column 431 can compress the first spring 432, so that the clamping protruding block 433 is out of contact with the clamping recess 222. When the pressing on the first pressing part 434 is released, the first sliding column 431 can move outward under the elastic action of the first spring 432, so that the clamping protruding block 433 is clamped into the clamping recess 222. The protruding teeth 221 are square protruding teeth. The clamping recess 222 is a square clamping recess. The clamping protruding block 433 is a square clamping protruding block. The inner end of the first sliding column 431 is provided with a first spring hole 435. One end of the first spring 432 is installed in the first spring hole 435. The outer side of the inner end of the first sliding column 431 is provided with a first rib 436. The hole wall of the first through hole 46 is provided with a first sliding groove 461 which corresponds to the first rib 436. The first rib 436 is slidably installed in the first sliding groove 461.

[0033] As shown in Figures 1-9 , the engaging mechanism 4 is provided with a second spring positioning post 47 and a second through hole 48; the second clamping mechanism 44 comprises a second sliding post 441, a clamping head 442 and a second spring 443, the second sliding post 441 has an inner end and an outer end, the second spring 443 is installed on the second spring positioning post 47, one end of the second spring 443 is connected with the inner end of the second sliding post 441, the inner end of the second sliding post 441 is connected with the clamping head 442 outside, the clamping head 442 is clamped and matched with the clamping hole 311, the outer end of the second sliding post 441 is movably installed in the second through hole 48, and the outer end of the second sliding post 441 has a second pressing part 444 which extends out of the second through hole 48; when the second pressing part 444 is pressed, the second sliding post 441 can compress the second spring 443, so that the clamping head 442 is separated from the clamping hole 311; when the pressing on the second pressing part 442 is released, the second sliding post 441 can move outward under the elastic action of the second spring 443, so that the clamping head 442 is clamped into the clamping hole 311. The clamping hole 311 is a circular clamping hole, and the clamping head 442 is a cylindrical clamping head; the inner end of the second sliding post 441 is provided with a second spring hole 445, one end of the second spring 443 is installed in the second spring hole 445; the engaging mechanism 4 is provided with a clamping head positioning post 49, the clamping head 442 is provided with a clamping head positioning hole 446, and the clamping head positioning post 49 is slidably inserted into the clamping head positioning hole 446; the inner end of the second sliding post 441 is provided with a second rib 447 outside, and the hole wall of the second through hole 48 is provided with a second sliding groove 481 corresponding to the second rib 447, and the second rib 447 is slidably installed in the second sliding groove 481.

[0034] As a preferred mode of the present application, as shown in Figures 1-9 , the engaging mechanism 4 comprises a first cover body 401 and a second cover body 402 which cover each other, the first cover body 401 is provided with a clamping hook, the second cover body 402 is provided with a clamping seat, and the clamping hook is clamped and matched with the clamping seat. As another preferred mode of the present application, as shown in Figure 5 and Figure 6 , the distance between the upper and lower ends of the one end of the second channel 42 close to the drain plug 1 is less than the distance between the upper and lower ends of the other end of the second channel 42 away from the drain plug 1, so that when the lever 3 swings up and down, the other end of the second channel 42 away from the drain plug 1 can avoid hindering the lever 3 from swinging up and down.

[0035] The assembling method of the connecting rod 22 and the joint mechanism 4 is as follows: firstly, the first pressing part 434 of the first clamping mechanism 43 is pressed down, the first slide column 431 moves inward and compresses the first spring 432, and the clamping protrusion 433 is out of contact with the clamping groove 222; then, the connecting rod 22 is inserted into the first channel 41 to a proper position; finally, the pressing on the first pressing part 434 is released, the first slide column 431 moves outward under the elastic action of the first spring 432, the clamping protrusion 433 is clamped into the clamping groove 222, and the connecting rod 22 is fixed. When the position of the connecting rod 22 needs to be adjusted again, the first pressing part 434 is pressed down again, the position of the connecting rod 22 in the first channel 41 can be adjusted, and when the position is adjusted to a proper position, the pressing on the first pressing part 434 is released, and the connecting rod 22 is fixed. When the connecting rod 22 needs to be disassembled, the first pressing part 434 of the first clamping mechanism 43 is pressed down first, and the connecting rod 22 can be pulled out of the first channel 41. The disassembly process is simple, convenient and fast.

[0036] The assembling method of the lever member 3 and the joint mechanism 4 is as follows: firstly, the second pressing part 444 of the second clamping mechanism 44 is pressed down, the second slide column 441 moves inward and compresses the second spring 443, and the clamping head 442 is out of contact with the clamping hole 311; then, the lever member 3 is inserted into the second channel 42 to a proper position; finally, the pressing on the second pressing part 444 is released, the second slide column 441 moves outward under the elastic action of the second spring 443, the clamping head 442 is clamped into the clamping hole 311, and the lever member 3 is fixed. When the position of the lever member 3 needs to be adjusted again, the second pressing part 444 is pressed down again, the position of the lever member 3 in the second channel 42 can be adjusted, and when the position is adjusted to a proper position, the pressing on the second pressing part 444 is released, and the lever member 3 is fixed. When the lever member 3 needs to be disassembled, the first pressing part 444 of the second clamping mechanism 44 is pressed down first, and the lever member 3 can be pulled out of the second channel 42. The disassembly process is simple, convenient and fast.

[0037] As Figures 1-4 , Figures 10-11As shown, the upper end of the connecting rod 22 is provided with a pull rod connecting piece 23, which is internally provided with a central insertion hole 231, a cavity 232 and an elastic clamping slider 233. The cavity 232 is transversely arranged, and the elastic clamping slider 233 is slidably installed in the cavity 232. The central insertion hole 231 is vertically arranged, the lower end of the pull rod 21 is inserted into the central insertion hole 231 and passes through the elastic clamping slider 233, and the lower end of the pull rod 21 is clamped and matched with the elastic clamping slider 233. The elastic clamping slider 233 has an inner end and an outer end. The inner end of the elastic clamping slider 233 is provided with a clamping block 2331, which is provided with a waist-shaped clamping hole 2332. The outer end of the elastic clamping slider 233 is provided with a third pressing portion 2333 extending out of the cavity. The inner end of the elastic clamping slider 233 is further connected with an elastic sheet 2334, which elastically abuts against the inner wall of the cavity 232. The lower end of the pull rod 21 passes through the waist-shaped clamping hole 2332, and the lower end of the pull rod 21 is provided with an annular groove 211, which is clamped and matched with the hole wall of the waist-shaped clamping hole 2332. When the third pressing portion 2333 is pressed, the elastic clamping slider 233 slides inwardly and transversely, forcing the elastic sheet 2334 to elastically deform, so that the hole wall of the waist-shaped clamping hole 2332 is separated from the annular groove 211. When the pressing on the third pressing portion 2333 is released, the elastic clamping slider 233 slides outwardly and transversely under the elastic action of the elastic sheet 2334, so that the hole wall of the waist-shaped clamping hole 2332 is clamped into the annular groove 211.

[0038] As a preferred mode of the present application, as shown in Figures 1-4 、 Figures 10-11 The pull rod connecting piece 23 includes a first shell 2301 and a second shell 2302 which are overlapped with each other. The second shell 2302 is provided with a clamping hook, and the first shell 2301 is provided with a clamping seat, which are clamped and matched with each other.

[0039] The assembling method of the pull rod connecting piece 23 and the pull rod 21 is as follows: firstly, the third pressing part 2333 of the elastic clamping sliding block 233 is pressed down, the elastic clamping sliding block 233 moves inward, the elastic deformation of the elastic sheet 2334 is forced to occur, the hole wall of the waist-shaped clamping hole 2332 is separated from the annular groove 211, at this time, the waist-shaped clamping hole 2332 is in communication with the center insertion hole 231; then, the pull rod 21 is inserted downward into the center insertion hole 231 and passes through the waist-shaped clamping hole 2332 of the elastic clamping sliding block 233; finally, when the pressing on the third pressing part 2333 is released, the elastic clamping sliding block 233 slides outward transversely under the elastic action of the elastic sheet 2334, at this time, the waist-shaped clamping hole 2332 is in a misaligned state with the center insertion hole 231, so that the hole wall of the waist-shaped clamping hole 2332 is clamped into the annular groove 211. When the pull rod 21 needs to be disassembled, the third pressing part 2333 of the elastic clamping sliding block 233 is pressed down first, and then the pull rod 21 can be pulled out upward from the center insertion hole 231. The disassembly process is simple, convenient and fast.

[0040] As shown in Figures 1-4 , Figure 12 , the quick disassembly drain plug linkage device further comprises a drain pipe 5, one side of the drain pipe 5 is provided with a connecting port 51, the inner side of the connecting port 51 is provided with a boss 511, the lower end of the drain plug 1 is provided with an insertion hole 11 and two notches 12, the two notches 12 are symmetrical to each other; the drain plug 1 is movably installed in the drain pipe 5, and any one of the two notches 12 abuts against the inner side of the boss 511, the second end of the lever member 3 passes through the connecting port 51 inward and is inserted into the insertion hole 11 of the drain plug 1. The drain plug 1 can be placed downward into the drain pipe 5, because the inner side of the connecting port 51 of the drain pipe 5 is provided with the boss 511, any one of the two notches 12 of the drain plug 1 can abut against the inner side of the boss 511, therefore, the position of the drain plug 1 in the drain pipe 5 can be limited by the boss 511 and the notch 12, so that the insertion hole 11 of the drain plug 1 is always aligned with the second end of the lever member 3.

[0041] As shown in Figures 1-4 , Figure 12As shown, the quick dismounting drain plug linkage device further comprises a sleeve assembly 6 and a spherical part 33, the sleeve assembly 6 is detachably connected with the connecting port 51, the spherical part 33 is rotatably arranged in the sleeve assembly 6, and the spherical part 33 is fixed or integrally formed to the lever 3 between the first end and the second end of the lever 3. The outer end of the connecting port of the drain pipe 5 is provided with two clamping grooves 52 along the circumference of the connecting port; the sleeve assembly 6 comprises a connecting sleeve 61 and a sleeve 62, one end of the connecting sleeve 61 is connected with the connecting port 51 of the drain pipe 5, a first waterproof ring 63 is arranged between the connecting sleeve 61 and the connecting port 51, the outer side of the connecting sleeve 61 is provided with two clamping blocks 611, when the connecting sleeve 61 is rotated forward, the clamping blocks 611 can be clamped into the corresponding clamping grooves 52, when the connecting sleeve 61 is rotated reversely, the clamping blocks 611 can be pushed out of the clamping grooves 52; the other end of the connecting sleeve 61 is connected with the sleeve 62, the spherical part 33 is rotatably arranged in the sleeve 62, the outer side of the sleeve 62 is provided with a pulling block 621, and a second waterproof ring 64 is arranged between the other end of the connecting sleeve 61 and the spherical part 33.

[0042] The above is only the preferred embodiment of the present application, any slight modification, equivalent change and modification made to the above embodiment according to the technical scheme of the present application are within the scope of the technical scheme of the present application.

Claims

1. A quick-release drain plug linkage device, comprising a drain plug, a pull rod assembly, a lever, and a connecting mechanism, wherein the pull rod assembly includes a pull rod and a connecting rod operably connected to each other, the connecting rod being operably connected to the connecting mechanism, the lever having a first end and a second end, the first end of the lever being operably connected to the connecting mechanism, and the second end of the lever being configured to operate the drain plug; characterized in that: The connecting mechanism has a first channel, a second channel, a first locking mechanism, and a second locking mechanism. The connecting rod is inserted into the first channel, and a plurality of protruding teeth are spaced apart on one side of the connecting rod. A locking groove is provided between adjacent protruding teeth, and the first locking mechanism can be locked into any one of the locking grooves. The first end of the lever is inserted into the second channel, and a plurality of locking holes are spaced apart on the first end of the lever. The second locking mechanism can be locked into any one of the locking holes. The connecting mechanism includes a first cover and a second cover that overlap each other, and the distance between the upper and lower ends of the second channel near the drain plug is smaller than the distance between the upper and lower ends of the channel away from the drain plug. The engagement mechanism includes a first spring positioning post and a first through hole. The first locking mechanism includes a first sliding post and a first spring. The first sliding post has an inner end and an outer end. The first spring is mounted on the first spring positioning post. One end of the first spring is connected to the inner end of the first sliding post. A locking protrusion is provided on the outer side of the inner end of the first sliding post. The locking protrusion engages with the locking groove. The outer end of the first sliding post is slidably installed in the first through hole. The outer end of the first sliding post has a first pressing part that extends outward from the first through hole. When the first pressing part is pressed, the first sliding post can compress the first spring, causing the locking protrusion to disengage from the locking groove. When the pressing part is released, the first sliding post can move outward under the elastic action of the first spring, causing the locking protrusion to engage in the locking groove. The engagement mechanism includes a second spring positioning post and a second through hole. The second snap-fit ​​mechanism includes a second slide post, a snap-fit ​​connector, and a second spring. The second slide post has an inner end and an outer end. The second spring is mounted on the second spring positioning post. One end of the second spring is connected to the inner end of the second slide post. The outer side of the inner end of the second slide post is connected to the snap-fit ​​connector, which engages with the snap-fit ​​hole. The outer end of the second slide post is movably installed in the second through hole, and the outer end of the second slide post has a second pressing part that extends outward from the second through hole. When the second pressing part is pressed, the second slide post can compress the second spring, causing the snap-fit ​​connector to disengage from the snap-fit ​​hole. When the pressing part is released, the second slide post can move outward under the elastic action of the second spring, causing the snap-fit ​​connector to snap into the snap-fit ​​hole.

2. The quick-release drain plug linkage device according to claim 1, characterized in that: The protruding teeth are square protruding teeth, the snap-fit ​​groove is a square snap-fit ​​groove, and the snap-fit ​​protrusion is a square snap-fit ​​protrusion; the inner end of the first sliding column is provided with a first spring hole, and one end of the first spring is installed in the first spring hole; the outer side of the inner end of the first sliding column is provided with a first rib, and the wall of the first through hole is provided with a first groove corresponding to the first rib, and the first rib is slidably installed in the first groove.

3. The quick-release drain plug linkage device according to claim 1, characterized in that: The snap-fit ​​hole is circular, and the snap-fit ​​connector is cylindrical. The inner end of the second sliding column is provided with a second spring hole, and one end of the second spring is installed in the second spring hole. The engaging mechanism is provided with a snap-fit ​​connector positioning post, and the snap-fit ​​connector is provided with a snap-fit ​​connector positioning hole. The snap-fit ​​connector positioning post is slidably inserted into the snap-fit ​​connector positioning hole. The outer side of the inner end of the second sliding column is provided with a second rib, and the wall of the second through hole is provided with a second groove corresponding to the second rib. The second rib is slidably installed in the second groove.

4. The quick-release drain plug linkage device according to claim 1, characterized in that: The upper end of the connecting rod is provided with a pull rod connector, and the pull rod connector is provided with a central insertion hole, a cavity and an elastic locking slider; the cavity is arranged horizontally, the elastic locking slider is slidably installed in the cavity, the central insertion hole is arranged vertically, the lower end of the pull rod is inserted into the central insertion hole and passes through the elastic locking slider, and the lower end of the pull rod is engaged with the elastic locking slider.

5. The quick-release drain plug linkage device according to claim 4, characterized in that: The elastic locking slider has an inner end and an outer end. The inner end of the elastic locking slider has a locking block with an oblong locking hole. The outer end of the elastic locking slider has a third pressing part that extends outward from the cavity. The inner end of the elastic locking slider is also connected to a spring piece, which elastically abuts against the inner wall of the cavity. The lower end of the pull rod passes through the oblong locking hole and has an annular groove that engages with the wall of the oblong locking hole. When the third pressing part is pressed, the elastic locking slider slides laterally inward, forcing the spring piece to undergo elastic deformation, causing the wall of the oblong locking hole to disengage from the annular groove. When the pressure on the third pressing part is released, the elastic locking slider slides laterally outward under the elastic action of the spring piece, causing the wall of the oblong locking hole to engage with the annular groove.

6. The quick-release drain plug linkage device according to claim 1, characterized in that: It also includes a drain pipe, one side of which has a connection port and the inner side of which has a boss. The lower end of the drain plug has a insertion hole and two notches, which are symmetrical to each other. The drain plug is movably installed in the drain pipe, and either of the two notches abuts against the inner side of the boss. The second end of the lever passes inward through the connection port and is inserted into the insertion hole of the drain plug.

7. The quick-release drain plug linkage device according to claim 6, characterized in that: It also includes a sleeve assembly and a spherical portion, the sleeve assembly being detachably connected to the connection port, the spherical portion being rotatably disposed in the sleeve assembly, and the spherical portion being fixed or integrally formed to the lever member between the first and second ends of the lever member.

8. The quick-release drain plug linkage device according to claim 7, characterized in that: The outer end of the drain pipe connection port is provided with two slots along the circumference of the connection port; the sleeve assembly includes a connecting sleeve and a sleeve, one end of the connecting sleeve is connected to the connection port of the drain pipe, a first waterproof ring is provided between the connecting sleeve and the connection port, and two locking blocks are provided on the outer side of the connecting sleeve. When the connecting sleeve rotates in the forward direction, the locking blocks can be locked into the corresponding slots; when the connecting sleeve rotates in the reverse direction, the locking blocks can be pushed out of the slots; the other end of the connecting sleeve is connected to the sleeve, the spherical part is rotatably placed in the sleeve, a lever is provided on the outer side of the sleeve, and a second waterproof ring is provided between the other end of the connecting sleeve and the spherical part.

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