CN219501788U - Open catheter implanter for nursing urinary surgery - Google Patents

Abstract

The utility model relates to the technical field of urinary catheter implantation, in particular to an open type urinary catheter implanter for nursing in urinary surgery, which comprises a limiting tube, wherein a mounting ring is fixedly connected to the outer surface of the limiting tube near one end, an illuminating lamp is embedded and connected to the front surface of the mounting ring, two liquid storage cavities are formed in the limiting tube, rubber sealing gaskets are fixedly connected to the inner walls of the two liquid storage cavities, sponge rings are connected to the inner walls of the limiting tube in a clamping mode, a sliding sleeve is connected to the outer surface of the limiting tube in a sliding mode, two rotating seats are fixedly connected to the outer surface of the sliding sleeve, supporting legs are connected to the side surfaces of the two rotating seats in a rotating mode, an upper contact semi-ring is connected to the inner portion of the limiting tube in a sliding mode, and a sliding handle is fixedly connected to the upper surface of the upper contact semi-ring. According to the utility model, the purpose of rapidly smearing the lubricant can be achieved, and the problem that the device is inconvenient to use due to the lack of an auxiliary lighting structure can be solved.

Description

Open catheter implanter for nursing urinary surgery

Technical Field

The utility model relates to the technical field of urinary catheter implantation, in particular to an open type urinary catheter implanter for nursing in urology surgery.

Background

A urinary catheter is a conduit that is inserted into the bladder from the urethra in order to drain urine. The catheter is a pipeline made of natural rubber, silicon rubber or polyvinyl chloride (PVC), can be inserted into the bladder through the urethra so as to drain urine, after the catheter is inserted into the bladder, an air bag is arranged near the head end of the catheter to fix the catheter and is left in the bladder, the catheter is not easy to fall out, the drainage tube is connected with a urine bag to collect urine, and the open catheter implanter is an auxiliary device needed by the use of the catheter insertion; the open catheter imbedding device in the prior art has certain defects when in use, when a patient inserts a catheter, lubricating liquid for lubrication needs to be smeared on the catheter, the current open catheter imbedding device cannot be smeared with the lubricating liquid on the catheter rapidly, and the existing open catheter imbedding device lacks an auxiliary lighting structure, so that the device is inconvenient to use.

Disclosure of Invention

The utility model aims at: in order to solve the problem that the conventional open type catheter imbedding device cannot be coated with lubricating liquid on a catheter rapidly, and the conventional open type catheter imbedding device lacks an auxiliary lighting structure, so that the device is inconvenient to use, the open type catheter imbedding device for urological nursing is provided.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides an open catheter implantation ware for urological nursing, includes the spacing pipe, spacing pipe surface is close to one end position fixedly connected with collar, collar front surface embedding is connected with the light, two stock solution chambeies have been seted up to spacing pipe inside, two the inner wall fixedly connected with rubber seal pad in stock solution chambeies, the inner wall block of spacing pipe is connected with the sponge ring, spacing pipe surface sliding connection has the sliding sleeve, sliding sleeve surface fixedly connected with two roating seats, two roating seat side surface rotates and is connected with the supporting leg, the inside sliding connection of spacing pipe has upper contact semi-ring, upper contact semi-ring upper surface fixedly connected with slip handle, before using, insert lower contact semi-ring cooperation inserted lever in the upper contact semi-ring, make lower contact semi-ring and inserted lever form a ring, and with this annular cover at catheter main part surface, afterwards, with the inside of stopper pipe with catheter main part, as shown in fig. 2, when using, slide the sliding sleeve along the stopper pipe, make the contact insert in the junction box, in this process, the sliding sleeve slides from the extrusion arch, make extrusion arch extrusion rubber seal pad, receive the extrusion of rubber seal pad, the inside lubricating liquid of stock solution chamber flows from the check valve of No. one to the sponge ring on the annular joint groove, when the catheter main part passes the sponge ring like this, the lubricating liquid on the sponge ring will adhere on the surface of catheter main part, play lubrication effect when the catheter main part inserts the urethra, alleviate patient's uncomfortable sense, and junction box and contact, with battery main part's electric power conduction to the light, make the light begin work, illuminate the affected part and make things convenient for doctor's operation.

The method is further characterized in that: the outer surface of the limiting pipe is provided with a limiting groove, the position, close to the limiting groove, of the outer surface of the limiting pipe is provided with a scale groove, a conducting hole is formed between the two liquid storage cavities, a liquid inlet channel is formed in the limiting pipe, the liquid inlet channel is connected and conducted with the conducting hole, the outer surface of the limiting pipe is embedded and connected with a second one-way valve, the second one-way valve is connected and conducted with the liquid inlet channel, the inner part of the liquid storage cavity is fixedly connected with a first one-way valve, one end of the first one-way valve is in close contact with a sponge ring, an annular clamping groove is formed at the corresponding position of the inner surface of the limiting pipe and the sponge ring, the bottom surface of the annular clamping groove is fixedly connected with a clamping rod, the spacing groove is convenient for observe the distance that the slip handle moved in the spacing groove, when adding the lubrication liquid, aim at No. two check valves with the syringe that the extraction has the lubricant, no. two check valves support external air or liquid inflow feed liquor passageway, and feed liquor passageway and via hole connect and switch on, so the lubrication liquid can get into two stock solution chambeies from the feed liquor passageway, the inside of block pole inserted the sponge ring, avoid the sponge ring to receive the influence of the frictional force when catheter main part passes to drop from annular joint groove, no. one check valve supports liquid or air outflow in the stock solution chamber, so when the inward extrusion of rubber seal pad, the space in stock solution chamber diminishes, the lubrication liquid will flow into in the sponge ring from No. one check valve.

The method is further characterized in that: the utility model discloses a battery pack, including collar, ring, connecting contact, sliding sleeve, baffle, rubber seal, connecting frame and connecting contact, the embedding of collar rear surface is connected with the connecting contact, connecting contact and light electric connection, fixed surface is connected with the battery case under the sliding sleeve, battery main part has been placed to the inside battery case, battery case surface embedding is connected with the baffle, battery case surface and connecting contact correspond position embedding and are connected with the connecting frame, connecting frame and battery main part electric connection, rubber seal outer surface fixedly connected with extrusion is protruding, baffle cooperation battery case fixed battery main part, slides the sliding sleeve along the spacing pipe, makes connecting contact insert in the connecting frame, on the electric power conduction to the light with battery main part, makes the light begin work, illuminates the affected part and makes things convenient for doctor to operate.

The method is further characterized in that: the rotary seat is characterized in that a rotary shaft is fixedly connected to the side surface of the rotary seat, threads are formed in one end of the rotary shaft, through holes are formed in positions, corresponding to the supporting legs and the rotary shaft, of the rotary seat, a thread sleeve is embedded and connected to the outer surface of the rotary seat, the thread sleeve is connected with the rotary shaft in a threaded mode, the tail end of the supporting legs is fixedly connected with contact rods, the supporting legs are matched with the contact rods to support the device, the two contact rods are contacted with thighs of a patient when the supporting legs are supported, the thread sleeve is rotated, the thread sleeve can be pushed by threads to move one end distance, the thread sleeve is separated from the supporting legs, then the angle of the supporting legs can be manually adjusted, and when the supporting legs are adjusted to a proper position, the supporting legs can be fixed under the pushing of the threads again through the rotating of the opposite directions.

The method is further characterized in that: the sliding handle is connected with the limiting groove in a sliding mode, limiting protrusions are arranged at corresponding positions of the sliding sleeve and the limiting groove, and the limiting groove limits sliding of the sliding handle and the sliding sleeve.

The method is further characterized in that: the upper surface of the upper contact semi-ring is provided with an insertion hole, an insertion rod is inserted into the insertion hole, and the lower surface of the insertion rod is fixedly connected with the lower contact semi-ring.

The method is further characterized in that: the contact positions of the upper contact semi-ring and the lower contact semi-ring are fixedly connected with silica gel pads, anti-skidding grooves are formed in the lower surface of the upper contact semi-ring and the upper surface of the lower contact semi-ring, the sliding handle is pressed downwards, the sliding handle pushes the upper contact semi-ring to extrude the silica gel pad, the distance between the upper contact semi-ring and the lower contact semi-ring is shortened, the catheter main body is conveniently clamped, and the anti-skidding grooves have an anti-skidding effect and prevent the catheter main body from skidding in moving.

The utility model has the beneficial effects that:

1. through the sliding sleeve and the limiting tube, when the catheter is used, the sliding sleeve slides along the limiting tube, so that the connecting contact is inserted into the connecting frame, in the process, the sliding sleeve slides over the extrusion bulge, the extrusion bulge extrudes the rubber sealing gasket and is extruded by the rubber sealing gasket, and the lubricating liquid in the liquid storage cavity flows into the sponge ring on the annular clamping groove from the one-way valve, so that when the catheter main body passes through the sponge ring, the lubricating liquid on the sponge ring can be adhered to the surface of the catheter main body, the purpose of rapidly smearing the lubricating agent is achieved, the lubricating agent plays a lubricating role when the catheter main body is inserted into the urethra, and discomfort of a patient is relieved;

2. through the collar that sets up, slide the sliding sleeve along the spacing pipe, make the contact insert in the connection frame, and connection frame and contact, with battery body's electric power conduction to the light on, make the light begin to work, light the affected part and make things convenient for doctor's operation to solve the device and lack the inconvenient problem of auxiliary lighting structure when leading to the device to use.

Drawings

The utility model is further described below with reference to the accompanying drawings.

FIG. 1 is an overall schematic of the present utility model;

FIG. 2 is a schematic view of the operation of the present utility model;

FIG. 3 is a schematic view of the split construction of the upper and lower contact half rings of the present utility model;

FIG. 4 is a schematic view of the split structure of the sliding sleeve and the rotary seat of the present utility model;

FIG. 5 is a schematic view of a semi-sectional structure of a spacing tube of the present utility model;

fig. 6 is a schematic diagram of the circuit connection of the present utility model.

In the figure: 1. a limiting tube; 101. a limit groove; 102. a liquid storage cavity; 103. a via hole; 104. a liquid inlet channel; 105. an annular clamping groove; 2. a mounting ring; 201. a lighting lamp; 202. a connection contact; 3. a rubber gasket; 301. extruding the bulge; 302. a first check valve; 303. a second check valve; 4. a sponge ring; 5. a sliding sleeve; 501. a battery case; 502. a battery main body; 503. a baffle; 504. a connection frame; 6. a rotating seat; 601. a rotation shaft; 602. a thread sleeve; 603. support legs; 604. a contact bar; 7. a sliding handle; 701. an upper contact half ring; 702. a silica gel pad; 703. an insertion hole; 704. a lower contact half ring; 705. an insertion rod; 8. a catheter body.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, an open catheter introducer for nursing in urinary surgery, which comprises a spacing tube 1, wherein a mounting ring 2 is fixedly connected to the outer surface of the spacing tube 1 near one end, a lighting lamp 201 is embedded and connected to the front surface of the mounting ring 2, two liquid storage cavities 102 are provided inside the spacing tube 1, rubber sealing gaskets 3 are fixedly connected to the inner walls of the two liquid storage cavities 102, a sponge ring 4 is connected to the inner wall of the spacing tube 1 in a clamping manner, a sliding sleeve 5 is slidingly connected to the outer surface of the spacing tube 1, two rotary seats 6 are fixedly connected to the outer surface of the sliding sleeve 5, support legs 603 are rotatably connected to the side surfaces of the two rotary seats 6, an upper contact semi-ring 701 is slidingly connected to the inner surface of the spacing tube 1, a sliding handle 7 is fixedly connected to the upper surface of the upper contact semi-ring 701, and before use, a lower contact semi-ring 704 is inserted into the upper contact semi-ring 701 in a matched manner, the lower contact semi-ring 704 and the insertion rod 705 are formed into a ring shape, the ring shape is sleeved on the outer surface of the catheter main body 8, then the catheter main body 8 is plugged into the inner part of the limit tube 1, as shown in fig. 2, when in use, the sliding sleeve 5 is slid along the limit tube 1, the connecting contact 202 is inserted into the connecting frame 504, in the process, the sliding sleeve 5 slides over the extruding protrusion 301, the extruding protrusion 301 extrudes the rubber sealing pad 3 and is extruded by the rubber sealing pad 3, the lubricating liquid in the liquid storage cavity 102 flows from the first check valve 302 into the sponge ring 4 on the annular clamping groove 105, thus when the catheter main body 8 passes through the sponge ring 4, the lubricating liquid on the sponge ring 4 is adhered to the surface of the catheter main body 8, the lubricating effect is played when the catheter main body 8 is inserted into the urethra, discomfort of a patient is relieved, and the connecting frame 504 is contacted with the connecting contact 202, the electric power of the battery main body 502 is transmitted to the illuminating lamp 201, so that the illuminating lamp 201 starts to work, and the affected part is illuminated to facilitate the operation of doctors;

the outer surface of the limiting tube 1 is provided with a limiting groove 101, the position, close to the limiting groove 101, of the outer surface of the limiting tube 1 is provided with a scale groove, a guide hole 103 is formed between two liquid storage cavities 102, a liquid inlet channel 104 is formed in the limiting tube 1, the liquid inlet channel 104 is connected and communicated with the guide hole 103, the outer surface of the limiting tube 1 is embedded and connected with a second one-way valve 303, the second one-way valve 303 is connected and communicated with the liquid inlet channel 104, a first one-way valve 302 is fixedly connected in the liquid storage cavities 102, one end of the first one-way valve 302 is closely contacted with a sponge ring 4, annular clamping grooves 105 are formed in the corresponding positions of the inner surface of the limiting tube 1 and the sponge ring 4, the bottom surface of the annular clamping grooves 105 is fixedly connected with a clamping rod, the limiting groove 101 is convenient for observing the moving distance of a sliding handle 7 in the limiting groove 101, when lubricating liquid is added, the second one-way valve 303 supports external air or liquid to flow into the liquid inlet channel 104, the liquid inlet channel 104 is connected and communicated with the guide hole 103, so that the lubricating liquid can enter the two liquid storage cavities 102 from the liquid inlet channel 104, and enter the two liquid storage cavities 102, the annular grooves 102 and the sponge ring 4 are prevented from falling off from the annular grooves 102, and the annular grooves 2 are prevented from flowing out of the annular grooves 102 when the annular ring 4 is pressed by the annular grooves and the sealing ring 4 or the sealing ring 4, and the sealing ring 3 is influenced by the small friction force when the sealing ring is pressed;

the back surface embedding of collar 2 is connected with connecting contact 202, connecting contact 202 and light 201 electric connection, fixed surface is connected with battery case 501 under the sliding sleeve 5, battery case 501 inside has been placed battery case 502, battery case 501 surface embedding is connected with baffle 503, battery case 501 surface and connecting contact 202 correspond the position embedding and are connected with connecting frame 504, connecting frame 504 and battery case 502 electric connection, rubber seal 3 fixed surface is connected with extrusion protruding 301, baffle 503 cooperation battery case 501 fixed battery case 502, slide sliding sleeve 5 along spacing pipe 1, make connecting contact 202 insert in connecting frame 504, with the electric power conduction of battery case 502 to light 201 on, make light 201 begin work, light the affected part operation of making things convenient for the doctor.

The rotating seat 6 is fixedly connected with a rotating shaft 601 on the side surface, one end of the rotating shaft 601 is provided with threads, the corresponding positions of the supporting leg 603 and the rotating shaft 601 are provided with through holes, the outer surface of the rotating seat 6 is embedded and connected with a threaded sleeve 602, the threaded sleeve 602 is in threaded connection with the rotating shaft 601, the tail end of the supporting leg 603 is fixedly connected with a contact rod 604, the supporting leg 603 is matched with the contact rod 604 to support the device, the two contact rods 604 are contacted with the thigh of a patient during supporting, the threaded sleeve 602 is rotated, the threaded sleeve 602 can be pushed by threads to move one end distance, the threaded sleeve 602 is separated from the supporting leg 603, then the angle of the supporting leg 603 can be manually adjusted, and when the angle is adjusted to a proper position, the supporting leg 603 can be fixed under the pushing of the threads in the opposite direction;

the sliding handle 7 is in sliding connection with the limiting groove 101, limiting protrusions are arranged at corresponding positions of the sliding sleeve 5 and the limiting groove 101, and the limiting groove 101 limits sliding of the sliding handle 7 and the sliding sleeve 5; the upper surface of the upper contact semi-ring 701 is provided with an insertion hole 703, an insertion rod 705 is inserted into the insertion hole 703, and the lower surface of the insertion rod 705 is fixedly connected with a lower contact semi-ring 704; the contact positions of the upper contact semi-ring 701 and the lower contact semi-ring 704 are fixedly connected with a silica gel pad 702, anti-skidding grooves are formed in the lower surface of the upper contact semi-ring 701 and the upper surface of the lower contact semi-ring 704, the sliding handle 7 is pressed downwards, the sliding handle 7 pushes the upper contact semi-ring 701 to extrude the silica gel pad 702, the distance between the upper contact semi-ring 701 and the lower contact semi-ring 704 is shortened, the catheter main body 8 is conveniently clamped, and the anti-skidding grooves play a role in preventing the catheter main body 8 from skidding in moving.

Working principle: before use, the lower contact semi-ring 704 is matched with the insertion rod 705 to be inserted into the upper contact semi-ring 701, the lower contact semi-ring 704 and the insertion rod 705 form a ring shape, the ring shape is sleeved on the outer surface of the catheter main body 8, then the catheter main body 8 is plugged into the inner part of the limit pipe 1, as shown in figure 2, when in use, the sliding sleeve 5 is slid along the limit pipe 1, the connecting contact 202 is inserted into the connecting frame 504, in the process, the sliding sleeve 5 slides over the extruding protrusion 301, the extruding protrusion 301 extrudes the rubber sealing gasket 3 and is extruded by the rubber sealing gasket 3, lubricating fluid in the liquid storage cavity 102 flows into the sponge ring 4 on the annular clamping groove 105 from the first check valve 302, so that when the catheter main body 8 passes through the sponge ring 4, the lubricating fluid on the sponge ring 4 is adhered to the surface of the catheter main body 8, the lubricating effect is achieved when the catheter main body 8 is inserted into the urethra, discomfort of a patient is relieved, the sliding handle 7 is pressed and pushed to the position of the sponge ring 4, the catheter main body 8 passes through the sponge ring 4, the connecting frame 504 and the connecting frame 202 slides over the extruding protrusion 301, the rubber sealing gasket 3 is extruded by the extruding the rubber sealing gasket, the lubricating fluid in the second check valve 102 is conveniently aligned with the second check valve 101, the second check valve 101 is conveniently drawn into the connecting groove 104, the second check valve is conveniently aligned with the inner side of the connecting valve 101, the liquid sealing gasket is conveniently, the liquid is conveniently drawn into the liquid sealing gasket is directly, and the liquid is directly connected with the liquid sealing gasket is directly, and the sealing gasket is directly connected with the sealing gasket, and the sealing gasket is directly connected with the sealing gasket, and is directly connected with the sealing bag, and is directly. The sponge ring 4 is prevented from falling off from the annular clamping groove 105 under the influence of friction force when the catheter main body 8 passes through, the first one-way valve 302 supports liquid or air in the liquid storage cavity 102 to flow out, so when the rubber sealing gasket 3 is extruded inwards, the space of the liquid storage cavity 102 is reduced, lubricating liquid flows into the sponge ring 4 from the first one-way valve 302, the baffle 503 is matched with the battery box 501 to fix the battery main body 502, the sliding sleeve 5 slides along the limiting tube 1, the connecting contact 202 is inserted into the connecting frame 504, the electric power of the battery main body 502 is conducted to the illuminating lamp 201, the illuminating lamp 201 starts to work, a doctor can conveniently operate the illuminating lamp, the supporting leg 603 is matched with the contact rod 604 to support the device, two contact rods 604 are contacted with thighs of a patient during supporting, the threaded sleeve 602 is rotated, the threaded sleeve 602 is separated from the supporting leg 603 by pushing one end of the threads, then the supporting leg 603 can be manually adjusted, when the angle of the supporting leg 603 is adjusted to a proper position, the sliding sleeve is reversely rotated, the supporting leg 603 can be fixed under the pushing of the threads, and the sliding sleeve 101 and the sliding handle 7 and the sliding sleeve 5 can be limited again.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely illustrative and explanatory of the utility model, as various modifications and additions may be made to the particular embodiments described, or in a similar manner, by those skilled in the art, without departing from the scope of the utility model or exceeding the scope of the utility model as defined in the claims.

Claims (7)

1. The utility model provides an open catheter implantation ware is used in nursing of uropoiesis surgery, includes spacing pipe (1), its characterized in that, spacing pipe (1) surface is close to one end position fixedly connected with collar (2), collar (2) front surface embedding is connected with light (201), two stock solution chamber (102) have been seted up to spacing pipe (1) inside, two the inner wall fixedly connected with rubber seal pad (3) of stock solution chamber (102), the inner wall block of spacing pipe (1) is connected with sponge ring (4), spacing pipe (1) surface sliding connection has sliding sleeve (5), sliding sleeve (5) surface fixedly connected with two roating seat (6), two roating seat (6) side surface rotation is connected with supporting leg (603), the inside sliding connection of spacing pipe (1) has upper contact semi-ring (701), upper surface fixedly connected with slip handle (7) on upper contact semi-ring (701).

2. The open catheter implanter for urinary surgery nursing according to claim 1, wherein the outer surface of the limiting tube (1) is provided with a limiting groove (101), the outer surface of the limiting tube (1) is close to the position of the limiting groove (101) and is provided with a scale groove, a through hole (103) is formed between two liquid storage cavities (102), the inner part of the limiting tube (1) is provided with a liquid inlet channel (104), the liquid inlet channel (104) is connected and communicated with the through hole (103), the outer surface of the limiting tube (1) is embedded and connected with a second one-way valve (303), the second one-way valve (303) is connected and communicated with the liquid inlet channel (104), the inner part of the liquid storage cavity (102) is fixedly connected with a first one-way valve (302), one end of the first one-way valve (302) is in close contact with a sponge ring (4), the inner surface of the limiting tube (1) is provided with a ring-shaped clamping groove (105) at the corresponding position of the sponge ring (4), and the bottom surface of the ring-shaped clamping groove (105) is fixedly connected with a clamping rod.

3. The open catheter implanter for urinary surgery nursing according to claim 1, wherein the connection contact (202) is embedded and connected on the rear surface of the mounting ring (2), the connection contact (202) is electrically connected with the illuminating lamp (201), a battery box (501) is fixedly connected with the lower surface of the sliding sleeve (5), a battery body (502) is placed inside the battery box (501), a baffle (503) is embedded and connected on the outer surface of the battery box (501), a connection frame (504) is embedded and connected on the outer surface of the battery box (501) and the corresponding position of the connection contact (202), the connection frame (504) is electrically connected with the battery body (502), and an extrusion protrusion (301) is fixedly connected on the outer surface of the rubber sealing gasket (3).

4. The open catheter implanter for urinary surgery nursing according to claim 1, wherein the rotating seat (6) side surface is fixedly connected with a rotating shaft (601), one end of the rotating shaft (601) is provided with threads, the corresponding positions of the supporting leg (603) and the rotating shaft (601) are provided with through holes, the outer surface of the rotating seat (6) is embedded and connected with a threaded sleeve (602), the threaded sleeve (602) is in threaded connection with the rotating shaft (601), and the tail end of the supporting leg (603) is fixedly connected with a contact rod (604).

5. The open type catheter implanter for nursing in urinary surgery according to claim 2, wherein the sliding handle (7) is slidably connected with the limiting groove (101), and the corresponding positions of the sliding sleeve (5) and the limiting groove (101) are provided with limiting protrusions.

6. The open catheter introducer for urological care of claim 1, wherein the upper surface of the upper contact half ring (701) is provided with an insertion hole (703), an insertion rod (705) is inserted into the insertion hole (703), and the lower surface of the insertion rod (705) is fixedly connected with the lower contact half ring (704).

7. The open type catheter implanter for nursing in urinary surgery according to claim 6, wherein the contact positions of the upper contact semi-ring (701) and the lower contact semi-ring (704) are fixedly connected with a silica gel pad (702), and the lower surface of the upper contact semi-ring (701) and the upper surface of the lower contact semi-ring (704) are provided with anti-slip grooves.