Anorectal abscess adsorption cleaner

Abstract

The invention relates to the technical field of medical apparatus and instruments, and discloses an anorectal abscess adsorption cleaner which comprises a base and a sleeve and further comprises a washing assembly installed on the base and comprising a rotating shaft, the rotating shaft is fixedly connected with a plurality of staggered convex discs, the convex discs make contact with sliding blocks movably matched with the sleeve, and the sliding blocks make contact with the washing assembly; the sliding blocks are in sliding fit with flushing pipelines arranged on the wall face of the sleeve, the flushing pipelines are all connected with a liquid conveying pipe installed on the base, and the liquid conveying pipe is connected with the liquid outlet end of the pump. The reciprocating assembly is arranged on the base and used for discharging the liquid phase out of the sleeve through reciprocating motion; the device has the beneficial effects that the flushing pipeline is sequentially blocked by the sliding blocks, so that a disinfectant is sprayed in the body of a patient from deep to shallow, pus and the disinfectant in the deeper part of the body of the patient can flow out of the body of the patient in the process that the disinfectant is sequentially sprayed through the flushing pipeline, and the flushing pipeline is prevented from being blocked by the sliding blocks. The secondary pollution caused by the fester flowing into the healthy part of the patient is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to an anorectal abscess adsorption cleaning device. Background Art

[0002] Anorectal abscess is a common anorectal disease in clinical practice. During its treatment, cleaning of the lesion site, removal of pus and follow-up care are key links to ensure treatment effectiveness and prevent the spread of infection.

[0003] Abscess cleansing is currently mostly done with manual flushing tools, making it difficult to precisely control the direction and scope of the disinfectant flow, often causing it to spread to healthy tissue within the patient's body. This not only reduces cleaning efficiency but can also irritate or contaminate healthy mucosa. Furthermore, pus tends to remain deep within the lesion, making traditional flushing methods difficult to achieve targeted removal from deep to shallow depths, which can easily lead to secondary infection.

[0004] During the process of collecting pus and wiping lesions, the mixture of pus and cleaning fluid is prone to poor drainage, causing pus to accumulate near the lesions; medical staff need to frequently manually replace cotton yarn when wiping lesions, which is cumbersome and inefficient. This not only increases the workload of medical staff, but also greatly aggravates the pain and discomfort of patients due to repeated touching of the wounds.

[0005] For this reason, a kind of anorectal abscess adsorption cleaning device is proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide an anorectal abscess adsorption cleaning device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: an anorectal abscess adsorption cleaning device, comprising a base and a sleeve, and further comprising: A flushing assembly is mounted on the base, the flushing assembly including a rotating shaft, a plurality of offset convex discs fixedly connected to the rotating shaft, the convex discs contacting a slider movably engaged with the sleeve, the slider slidably engaging with a flushing pipe provided on the sleeve wall, the plurality of flushing pipes being connected to an infusion tube mounted on the base, the infusion tube being connected to the liquid outlet of the pump; A reciprocating assembly is provided on the base and is used for discharging the liquid phase outward from the sleeve through reciprocating motion; A cotton yarn conveying assembly is provided on the base and is used to seal the opening of the sleeve. The cotton yarn conveying assembly is used to convey the cotton yarn; The driving assembly is installed on the base and is used to drive the flushing assembly, the reciprocating assembly and the cotton yarn conveying assembly to operate.

[0008] As a preferred technical solution of the present invention: the reciprocating assembly includes a first inner lining plate and a second inner lining plate, the first inner lining plate and the second inner lining plate are symmetrically fixedly connected to the outer wall of the base, the inner wall of the first inner lining plate is rotatably engaged with a reciprocating screw, the inner wall of the first inner lining plate is installed with a motor, and the outer wall of the reciprocating screw is slidably engaged with a scraper.

[0009] As another preferred technical solution of the present invention: the cotton yarn conveying assembly includes a support frame, the support frame is fixedly connected to the outer wall of the base, the internal rotation of the support frame is matched with a gear shaft, the inner wall of the support frame is fixedly connected to a transverse partition, the top of the transverse partition is symmetrically fixedly connected to a vertical plate, the outer wall of the gear shaft is transmission-connected to a transmission belt, the outer wall of the base is installed with a feeding mechanism, and the lower surface of the support frame is fixedly connected to a recovery bin.

[0010] As another preferred technical solution of the present invention: the inner wall of the transmission belt is fixedly connected with a rack distributed in a linear array, the outer walls of the transmission belt are fixedly connected with splints distributed in a linear array on both sides, the outer wall of the transmission belt is installed with a sticky plate, the lower surface of the cross partition is provided with chamfers on both sides and is inclined as a whole, and the splint is in a straight state when on the vertical plate.

[0011] As another preferred technical solution of the present invention: the feeding mechanism includes a feeding pipe, a pull rod is slidably connected to the inside of the feeding pipe, a first spring is fixedly connected between the pull rod and the outer wall of the feeding pipe, the feeding pipe is located above the diaphragm, and the feeding mechanism is filled with multiple cotton yarns.

[0012] As another preferred technical solution of the present invention: the drive assembly includes a main gear, which is installed at the output end of the motor, and the surface of the motor is rotatably connected to a driven gear rod that meshes with the main gear, and the bottom of the driven gear rod is fixedly connected to a first bevel tooth that is colinear with the axis of the driven gear rod, and the driven gear rod is meshed with a gear disk fixed on the end side of the rotating shaft, and the transmission belt is meshed with the main gear and the gear shaft through a rack fixed on the inner wall.

[0013] As another preferred technical solution of the present invention: the clamping plate is bent in an L-shape toward the middle of the transmission belt, and the distance between the vertical plates on both sides is equal to the width of the transmission belt.

[0014] As another preferred technical solution of the present invention: the opening of the flushing pipe close to the outer wall of the second inner lining plate is inclined toward the side close to the base, and the flushing pipe is connected to the annular pipe opened inside the second inner lining plate.

[0015] As another preferred technical solution of the present invention: the outer walls of the first inner lining plate and the second inner lining plate are fixedly connected with clips, the outer wall of the first inner lining plate is slidably connected with a sleeve through the clip, a probe is installed on the side of the inner cavity of the sleeve away from the base, and the outer walls of the first inner lining plate and the second inner lining plate are in contact with the outer wall of the sleeve.

[0016] The beneficial effects of the embodiments of the present invention are: 1. The sliders are blocked in sequence on the flushing pipes, so that the disinfectant is sprayed from deep to shallow in the patient's body. In this way, the pus and disinfectant in the deeper part of the patient's body will flow out of the patient's body during the process of the disinfectant being sprayed in sequence through the flushing pipes, thus preventing the pus from flowing into the healthy parts of the patient and causing secondary contamination. 2. During the rotation of the driven gear rod, the meshing of the first bevel gear and the second bevel gear drives the reciprocating screw rod to rotate together. During the rotation of the reciprocating screw rod, the scraper plate slides back and forth on the outer wall of the reciprocating screw rod. During the reciprocating sliding of the scraper plate, the cleaning liquid flowing into the device and the pus flushed from the patient's body are pushed to the side of the first inner lining plate close to the base, so that the mixed liquid is taken out of the patient's body; 3. The transmission belt drives the cotton yarn to rotate on the transmission belt through the sticky plate. When the splint at the corresponding position of the cotton yarn is separated from the surface of the vertical plate, the splint returns to the bent state and further fixes the cotton yarn, so that the cotton yarn sticks stably to the surface of the transmission belt. In the process of rotating together on the surface of the transmission belt, the cotton yarn will wipe the patient's lesion through the opening on the sleeve, so that medical staff do not need to frequently change the cotton yarn when cleaning the lesion, and avoid frequent touching of the patient's wound due to the need to change the cotton yarn, thereby reducing the patient's discomfort when cleaning the abscess. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 It is a schematic cross-sectional view of the overall structure of the present invention; Figure 4 This is a schematic cross-sectional view of the flushing assembly structure of the present invention; Figure 5 This is a schematic diagram of the overall structure of the flushing assembly of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the structure at center A; Figure 7 This is an exploded schematic diagram of the transmission belt structure of the present invention; Figure 8 It is a schematic cross-sectional view of the flushing assembly structure of the present invention.

[0018] In the picture: 1. Casing; 2. Base; 3. Reciprocating assembly; 4. Transmission assembly; 5. Flushing assembly; 6. Driving assembly; 12. Probe; 13. Buckle; 31. First inner lining plate; 32. Reciprocating screw; 33. Motor; 34. Scraper; 35. Second inner lining plate; 41. Support frame; 42. Gear shaft; 43. Transverse partition; 44. Vertical plate; 45. Transmission belt; 46. Feed mechanism; 47. Recovery bin; 51. Rotating shaft; 52. Infusion tube; 53. Flushing pipe; 54. Annular pipe; 55. Slider; 61. Main gear; 62. Driven gear rod; 63. First bevel gear; 64. Second bevel gear; 65. Tooth plate; 451, rack; 452, splint; 453, adhesive plate; 461, feed pipe; 462, pull rod; 463, first spring; 511. Convex disc. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] It will be understood that the terms "first," "second," etc. used herein may be used to describe various elements, but unless otherwise specified, these elements are not limited by these terms. These terms are only used to distinguish a first element from another element.

[0021] like Figure 2-Figure 6 As shown, in one embodiment, an anorectal abscess adsorption cleaning device is provided, comprising a base 2 and a sleeve 1, and further comprising: The flushing assembly 5 is mounted on the base 2 and includes a rotating shaft 51 to which are fixedly connected a plurality of offset flanges 511. The flanges 511 contact a slider 55 movably engaged with the sleeve 1. The slider 55 slidably engages with a flushing pipe 53 provided on the wall of the sleeve 1. The plurality of flushing pipes 53 are all connected to an infusion tube 52 mounted on the base 2, and the infusion tube 52 is connected to the liquid outlet of the pump. A reciprocating assembly 3 is provided on the base 2 and is used to discharge the liquid phase outward from the sleeve 1 through reciprocating motion; The cotton yarn conveying assembly 4 is provided on the base 2 and is used to seal the opening of the sleeve 1. The cotton yarn conveying assembly 4 is used to convey the cotton yarn; The driving assembly 6 is installed on the base 2 and is used to drive the flushing assembly 5, the reciprocating assembly 3 and the cotton yarn conveying assembly 4 to operate.

[0022] During actual use of the embodiment of the present invention, the rotating shaft 51 rotates, driving the spirally distributed convex discs 511 on its surface to rotate together. As the convex discs 511 rotate, they push the slider 55 in a wave-like manner to slide toward the inside of the infusion tube 52. As the slider 55 slides, the multiple flushing pipes 53 are blocked by the slider 55 in sequence, starting from the side away from the base 2. The medical staff turns on the infusion pump connected to the end of the infusion tube 52, and the disinfectant enters the inside of the infusion tube 52 and flushes the patient's abscess through the flushing pipe 53. At this time, because the ends of the flushing pipe 53 located on the outer wall of the second inner lining plate 35 are inclined toward the side of the base 2, the disinfectant will be flushed toward the side close to the base 2 to prevent the disinfectant from flowing into the healthy parts of the patient's body. The slider 55 is blocked in sequence on the flushing pipe 53, so that the disinfectant is sprayed from deep to shallow in the patient's body, so that the pus and disinfectant deeper in the patient's body will flow to the outside of the patient's body during the process of the disinfectant being sprayed in sequence through the flushing pipe 53, so as to prevent the pus from flowing into the healthy parts of the patient and causing secondary contamination.

[0023] like Figure 3 As shown, as a preferred embodiment of the present invention, the reciprocating assembly 3 includes a first inner lining plate 31 and a second inner lining plate 35, and the first inner lining plate 31 and the second inner lining plate 35 are symmetrically fixedly connected to the outer wall of the base 2, and the inner wall of the first inner lining plate 31 is rotatably engaged with the reciprocating screw 32, the inner wall of the first inner lining plate 31 is installed with a motor 33, and the outer wall of the reciprocating screw 32 is slidably engaged with a scraper 34.

[0024] During actual application of the embodiment of the present invention, the rotation of the reciprocating screw 32 will drive the scraper 34 to slide back and forth on the outer wall of the reciprocating screw 32. During the reciprocating sliding of the scraper 34, the cleaning fluid flowing into the equipment and the pus flushed out of the patient's body will be pushed to the side of the first inner lining plate 31 close to the base 2, so that the mixed liquid will be brought out of the patient's body.

[0025] like Figure 5-Figure 7 As shown, as another preferred embodiment of the present invention, the cotton yarn conveying assembly 4 includes a support frame 41, the support frame 41 is fixedly connected to the outer wall of the base 2, the internal rotation of the support frame 41 is matched with a gear shaft 42, the inner wall of the support frame 41 is fixedly connected to a transverse partition 43, the top of the transverse partition 43 is symmetrically fixedly connected to a vertical plate 44, the outer wall of the gear shaft 42 is transmission-connected to a transmission belt 45, the outer wall of the base 2 is installed with a feeding mechanism 46, and the lower surface of the support frame 41 is fixedly connected to a recovery bin 47.

[0026] In actual use of the embodiment of the present invention, medical personnel rotate the base 2 so that the surface of the transmission belt 45 is aligned with the opening of the sleeve 1. As the cotton yarn rotates along with the surface of the transmission belt 45, it wipes the patient's lesion through the opening of the sleeve 1, eliminating the need for medical personnel to frequently replace the cotton yarn when cleaning the lesion. This also avoids frequent touching of the patient's wound due to the need to replace the cotton yarn, thereby reducing the patient's discomfort when cleaning the abscess. When the cotton yarn rotates to below the transverse partition 43 on the transmission belt 45, the cotton yarn on the transmission belt 45 falls into the recovery bin 47 due to the inclination of the transverse partition 43, so that the used cotton yarn is collected.

[0027] like Figure 7 As shown, as another preferred embodiment of the present invention, the inner wall of the transmission belt 45 is fixedly connected with a rack 451 distributed in a linear array, the outer walls of the transmission belt 45 are fixedly connected with a splint 452 distributed in a linear array on both sides, the outer wall of the transmission belt 45 is installed with an adhesive plate 453, the lower surface of the cross partition 43 is chamfered on both sides and is inclined as a whole, and the splint 452 is in a straight state when on the vertical plate 44.

[0028] When the embodiment of the present invention is actually used, the transmission belt 45 will drive the surface clamping plate 452 to move together during the rotation process, and the sticking plate 453 on the surface of the transmission belt 45 will stick to the cotton yarn. The transmission belt 45 drives the cotton yarn to rotate together on the transmission belt 45 through the sticking plate 453. When the clamping plate 452 at the corresponding position with the cotton yarn is separated from the surface of the vertical plate 44, the clamping plate 452 returns to the bent state and further fixes the cotton yarn, so that the cotton yarn is stably stuck to the surface of the transmission belt 45.

[0029] After the transmission belt 45 rotates one circle, the clamping plate 452 will be squeezed against the diaphragm 43. The chamfers on both sides of the diaphragm 43 will cause the clamping plate 452 to change from a bent state to a straight state. After the clamping plate 452 is straightened, it will no longer clamp the cotton yarn on the transmission belt 45. Then the transmission belt 45 continues to rotate, and the cotton yarn on the transmission belt 45 will be blocked by the lower surface of the diaphragm 43, thereby causing the cotton yarn on the transmission belt 45 to detach from the surface of the transmission belt 45.

[0030] like Figure 3 As shown, as another preferred embodiment of the present invention, the feeding mechanism 46 includes a feeding pipe 461, the inside of the feeding pipe 461 is slidably connected to a pull rod 462, a first spring 463 is fixedly connected between the pull rod 462 and the outer wall of the feeding pipe 461, the feeding pipe 461 is located above the transverse partition 43, and the feeding mechanism 46 is filled with a plurality of cotton yarns.

[0031] In actual application of the embodiment of the present invention, the medical staff pulls the pull rod 462 outward, and then puts multiple cotton yarns into the inside of the feed tube 461 in turn. After the medical staff lets go, the pull rod 462 elastically stretches to push the cotton yarn inside the feed tube 461 toward the side close to the outer wall of the transmission belt 45.

[0032] like Figure 3 and Figure 4 As shown, as another preferred embodiment of the present invention, the drive assembly 6 includes a main gear 61, which is installed at the output end of the motor 33. The surface of the motor 33 is rotatably connected to a driven gear rod 62 that meshes with the main gear 61. The bottom of the driven gear rod 62 is fixedly connected to a first bevel tooth 63 that is colinear with the axis of the driven gear rod 62. The driven gear rod 62 is meshed with a toothed disc 65 fixed on the end side of the rotating shaft 51, and the transmission belt 45 is meshed with the main gear 61 and the gear shaft 42 through a rack 451 fixed on the inner wall.

[0033] When the embodiment of the present invention is actually used, when the motor 33 is started, the main gear 61 at its output end rotates. When the main gear 61 rotates, it will drive the transmission belt 45 to rotate by engaging with the rack 451 on the inner wall of the transmission belt 45; when the main gear 61 rotates, it will drive the driven gear rod 62 to engage and rotate. When the driven gear rod 62 rotates, it will drive the rotating shaft 51 to rotate together by engaging with the toothed disk 65, thereby realizing the sequential spraying of the flushing component 5 in the patient's body; when the driven gear rod 62 rotates, it drives the first bevel gear 63 and the second bevel gear 64 to engage and rotate. When the second bevel gear 64 rotates, the scraper 34 on the surface of the reciprocating screw 32 will slide back and forth on the surface of the reciprocating screw 32, thereby discharging the liquid phase in the sleeve 1 to the outside of the patient's body.

[0034] like Figure 7 As shown in FIG. 4 , as another preferred embodiment of the present invention, the clamping plate 452 is bent in an L-shape toward the middle of the transmission belt 45 , and the distance between the vertical plates 44 on both sides is equal to the width of the transmission belt 45 .

[0035] like Figure 4 and Figure 8 As shown, as another preferred embodiment of the present invention, the opening of the flushing pipe 53 close to the outer wall of the second inner lining plate 35 is inclined toward the side close to the base 2, and the flushing pipe 53 is connected to the annular pipe 54 opened inside the second inner lining plate 35.

[0036] like Figure 1 and Figure 2 As shown, as another preferred embodiment of the present invention, the outer walls of the first inner lining plate 31 and the second inner lining plate 35 are fixedly connected with a clip 13, the outer wall of the first inner lining plate 31 is slidably connected with the sleeve 1 through the clip 13, and the probe 12 is installed on the side of the inner cavity of the sleeve 1 away from the base 2, and the outer walls of the first inner lining plate 31 and the second inner lining plate 35 are in contact with the outer wall of the sleeve 1.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0038] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An anorectal abscess adsorption cleaning device, comprising a base (2) and a sleeve (1), characterized in that: Also includes: A flushing assembly (5) is mounted on the base (2), the flushing assembly (5) comprising a rotating shaft (51), a plurality of dislocated convex discs (511) being fixedly connected to the rotating shaft (51), the convex discs (511) being in contact with a slider (55) movably engaged with the sleeve (1), the slider (55) being in sliding engagement with a flushing pipe (53) provided on the wall surface of the sleeve (1), the plurality of flushing pipes (53) being all connected to an infusion pipe (52) mounted on the base (2), the infusion pipe (52) being connected to a liquid outlet end of the pump; A reciprocating assembly (3) is arranged on the base (2) and is used to discharge the liquid phase outward from the sleeve (1) through reciprocating motion; A cotton yarn conveying assembly (4) is arranged on the base (2) and is used to seal the opening of the sleeve (1); the cotton yarn conveying assembly (4) is used to convey cotton yarn; The driving assembly (6) is mounted on the base (2) and is used to drive the flushing assembly (5), the reciprocating assembly (3) and the cotton yarn conveying assembly (4) to operate.

2. The anorectal abscess adsorption cleaning device according to claim 1, characterized in that: The reciprocating assembly (3) comprises a first inner lining plate (31) and a second inner lining plate (35), wherein the first inner lining plate (31) and the second inner lining plate (35) are symmetrically fixedly connected to the outer wall of the base (2), the inner wall of the first inner lining plate (31) is rotatably engaged with a reciprocating screw (32), a motor (33) is installed on the inner wall of the first inner lining plate (31), and the outer wall of the reciprocating screw (32) is slidably engaged with a scraper (34).

3. The anorectal abscess adsorption cleaning device according to claim 1, characterized in that: The cotton yarn conveying assembly (4) comprises a support frame (41), the support frame (41) is fixedly connected to the outer wall of the base (2), the support frame (41) is internally rotatably matched with a gear shaft (42), the inner wall of the support frame (41) is fixedly connected to a transverse partition (43), the top of the transverse partition (43) is symmetrically fixedly connected to a vertical plate (44), the outer wall of the gear shaft (42) is transmission-connected to a transmission belt (45), the outer wall of the base (2) is installed with a feeding mechanism (46), and the lower surface of the support frame (41) is fixedly connected to a recovery bin (47).

4. The anorectal abscess adsorption cleaning device according to claim 3, characterized in that: The inner wall of the transmission belt (45) is fixedly connected to a rack (451) distributed in a linear array, and the outer walls of the transmission belt (45) are fixedly connected to clamping plates (452) distributed in a linear array on both sides. The outer wall of the transmission belt (45) is installed with a sticking plate (453). Both sides of the lower surface of the transverse partition (43) are provided with chamfers and are tilted as a whole. The clamping plates (452) are in a straight state when on the vertical plate (44).

5. The anorectal abscess adsorption cleaning device according to claim 3, characterized in that: The feeding mechanism (46) includes a feeding tube (461), the interior of the feeding tube (461) is slidably connected to a pull rod (462), a first spring (463) is fixedly connected between the pull rod (462) and the outer wall of the feeding tube (461), the feeding tube (461) is located above the transverse partition (43), and the interior of the feeding mechanism (46) is filled with a plurality of cotton yarns.

6. The anorectal abscess adsorption cleaning device according to claim 4, characterized in that: The driving assembly (6) includes a main gear (61), which is mounted on the output end of the motor (33). A driven gear rod (62) meshing with the main gear (61) is rotatably connected to the surface of the motor (33). A first bevel tooth (63) colinear with the axis of the driven gear rod (62) is fixedly connected to the bottom of the driven gear rod (62). The driven gear rod (62) meshes with a toothed disc (65) fixed to the end side of the rotating shaft (51). The transmission belt (45) meshes with the main gear (61) and the gear shaft (42) through a rack (451) fixed to the inner wall.

7. The anorectal abscess adsorption cleaning device according to claim 4, characterized in that: The clamping plate (452) is bent in an L-shape toward the middle of the transmission belt (45), and the distance between the vertical plates (44) on both sides is equal to the width of the transmission belt (45).

8. The anorectal abscess adsorption cleaning device according to claim 2, characterized in that: The opening of the flushing pipe (53) close to the outer wall of the second inner lining plate (35) is inclined toward the side close to the base (2), and the flushing pipe (53) is connected to the annular pipe (54) opened inside the second inner lining plate (35).

9. The anorectal abscess adsorption cleaning device according to claim 2, characterized in that: The outer walls of the first inner lining plate (31) and the second inner lining plate (35) are fixedly connected with a buckle (13), the outer wall of the first inner lining plate (31) is slidably connected with the sleeve (1) through the buckle (13), a probe (12) is installed on the side of the inner cavity of the sleeve (1) away from the base (2), and the outer walls of the first inner lining plate (31) and the second inner lining plate (35) are in contact with the outer wall of the sleeve (1).

Images