CN209091529U

CN209091529U - A kind of calculus plugging device can be improved calculus clearance rate

Info

Publication number: CN209091529U
Application number: CN201821435182.5U
Authority: CN
Inventors: 阮厚鑫
Original assignee: First Affiliated Hospital of Anhui Medical University
Current assignee: First Affiliated Hospital of Anhui Medical University
Priority date: 2018-09-01
Filing date: 2018-09-01
Publication date: 2019-07-12
Anticipated expiration: 2028-09-01

Abstract

The utility model provides a kind of calculus plugging device that can be improved calculus clearance rate, including outer sheath, slip ring, elastic slice, containing fabric, traveller, disinfection storage box structure, calculus collect box device, assist illuminator device, lubricate sponge spherical structure, drawing pipe, fixed bracelet, adjusts bracelet, limit plate, finger ring and snap-gauge.The setting of the utility model elastic slice and containing fabric is conducive to accommodate calculus powder, solves the problems, such as that calculus powder collects more difficult, increase calculus clearance rate；Lubricating fluid, lubrication operation bar, the setting of Anti-slip cover and sponge ball are conducive to provide lubrication for calculus plugging device, solve the problems, such as that traditional calculus plugging device does not have mating lubricating tool；The setting of lamp bead is conducive to carrying out providing floor light when calculus blocks work for medical staff, solves the problems, such as that operation illumination cannot be provided for calculus plugging device, while also increasing the usability of the calculus plugging device.

Description

A kind of calculus plugging device can be improved calculus clearance rate

Technical field

The utility model belongs to the field of medical instrument technology more particularly to a kind of calculus envelope that can be improved calculus clearance rate Stifled device.

Background technique

In recent years, the operation of rubble is more and more under ureteroscope, in ureteroscope lithotrity, with rubble energy Increase, calculus drift rate also gradually increases.The calculus of drift usually needs further surgery to handle because fragment is excessive, such as defeated Urinary catheter soft lens lithotrity, Flexible ureteroscope are trapped stone art or ESWI, and patient suffering is not only increased, and are extended operating time, are more increased The risk and medical treatment cost of postoperative infection fever.More importantly residual stone fragment will become new at the lithophysa heart, it is secondary on Urinary tract infections and renal colic bring more pains to patient.Therefore, calculus drift in art is reduced, it is defeated for increasing calculus clearance rate The major issue of urinary catheter mirror lithotrity.

China Patent Publication No. is CN203591285U, and invention and created name is calculus plugging device, including outer sheath, inner core And propeller, inner core are arranged in outer sheath, propeller is mounted on the proximal end of outer sheath, one section of setting of the inner core far-end For retractility memory alloy spring.But existing calculus plugging device there is also calculus powder collect it is more difficult, without mating profit The problem of sliding tool for calculus plugging device with that cannot provide operation illumination.

Therefore, a kind of calculus plugging device that can be improved calculus clearance rate is invented to be very necessary.

Utility model content

In order to solve the above-mentioned technical problem, the utility model provides a kind of calculus closure that can be improved calculus clearance rate Device, it is more difficult to solve existing calculus plugging device calculus powder collection, it without mating lubricating tool and cannot be calculus plugging device The problem of operation illumination is provided.A kind of calculus plugging device can be improved calculus clearance rate, including outer sheath, slip ring, elastic slice are received Naboo, traveller, disinfection storage box structure, calculus collect box device, and assist illuminator device lubricates sponge spherical structure, pull pipe, Fixed bracelet adjusts bracelet, limit plate, finger ring and snap-gauge, front surface upper position of the slip ring socket in outer sheath；Institute Axis connects in the outer surface surrounding position of slip ring the elastic slice stated respectively；The containing fabric is socketed in the upper end position of outer sheath and riveting Connect the outer end position in elastic slice；In the sliding slot that the upper inside left and right sides that the traveller extends transversely through outer sheath opens up respectively And it is welded on the bosom position of slip ring；The disinfection storage box structure is connected to the left part position of assist illuminator device It sets；The calculus collects the leftward position that box device is mounted on outer sheath；The assist illuminator device is connected to epitheca The right positions of pipe；The lubrication sponge spherical structure is mounted on the lower left quarter position for adjusting bracelet；The drawing pipe is longitudinal The bosom position of outer sheath is plugged on through the left side interior location activity for adjusting bracelet and is welded on the lower surface of traveller Middle position；Lower end position of the left side upper surface transverse weld of the fixation bracelet in outer sheath；The adjusting bracelet Axis connects the front surface left lower position in fixed bracelet and connects setting with drawing pipe axis；The limit plate longitudinal axis connects solid Determine the right end position of bracelet；The finger ring is welded on the right side middle position of limit plate；The snap-gauge integrated setting exists Adjust the right lower quadrant position of bracelet；The lubrication sponge spherical structure includes cartridge, cover, hanging ring, lubricating fluid, lubrication operation Bar, Anti-slip cover and sponge ball, the cover horizontal thread are connected to the upper end position of cartridge；The hanging ring is welded on cylinder The upper surface middle position of lid；The inner lower position of cartridge is arranged in the lubricating fluid；The lubrication operation bar is vertical To the inside left position for being placed on cartridge；The Anti-slip cover is longitudinally socketed in the upper end position of lubrication operation bar；It is described Sponge ball be socketed in the lower end position of lubrication operation bar.

Preferably, disinfection storage box structure includes Storage Box, box cover, fastening plates, aerofoil profile bolt, disinfection connection Bar, squeezing handle and rayon balls, leftward position of the box cover longitudinal direction hinge connection in Storage Box；The fastening plates are laterally welded Connect the upper end position in box cover；The aerofoil profile bolt thread is connected to the intersection position of fastening plates and Storage Box, described Aerofoil profile is bolted to the upper surface right positions of fastening plates；The placed longitudinally interior subordinate in Storage Box of the disinfection connecting rod Side position；The squeezing handle is longitudinally socketed in the upper end position of disinfection connecting rod；The rayon balls is socketed in disinfection connection The lower end position of bar.

Preferably, it includes collection box that the calculus, which collects box device, anchor ear, water-absorbing sponge pad, observation window, dustproof cover and Opening handle, cross screw is connected to two positions in the right side of collection box or more to the anchor ear respectively；The water-absorbing sponge Pad is placed across the bottom inner surface position of collection box；The observation window is longitudinally embedded in the front surface interposition of collection box It sets；The dustproof cover horizontal thread is connected to the upper end position of collection box；The opening handle integrated setting is dust-proof The front surface middle position of lid.

Preferably, the assist illuminator device includes light bulb, control switch, battery case, snoot, lamp bead and pipe Folder, the control switch are embedded in the right upper portion position of light bulb；The battery case is longitudinally provided with the front surface of light bulb Lower middle position；The snoot is threaded in the upper end position of light bulb；The lamp bead is threaded in snoot Bottom inner surface middle position；Cross screw is connected to two positions in the left side of light bulb or more to the pipe clamp respectively.

Preferably, the Storage Box screw is connected to the leftward position of pipe clamp；The disinfection connecting rod, squeezing handle and de- Rouge cotton balls is each provided with multiple respectively.

Preferably, the anchor ear is laterally socketed in the front surface lower position of outer sheath respectively.

Preferably, the pipe clamp is laterally socketed in the front surface lower position of outer sheath respectively；The anchor ear is located at The lower position of pipe clamp.

Preferably, the hanging ring is welded on the left side lower surface middle position for adjusting bracelet.

Preferably, the front surface upper right quarter position difference of the front surface lower position of the fixation bracelet and adjusting bracelet It is socketed with non-slip rubber set.

Preferably, the limit plate and snap-gauge clamping setting；There are two the hanging ring is specifically arranged.

Preferably, sealing strip is provided between the Storage Box and box cover.

Preferably, it is electrically connected between the control switch and lamp bead.

Compared with prior art, the utility model has the following beneficial effects:

1. in the utility model, the setting of the elastic slice and containing fabric is conducive to accommodate calculus powder, solve Calculus powder collects more difficult problem, increases calculus clearance rate.

2. in the utility model, the lubricating fluid, lubrication operation bar, the setting of Anti-slip cover and sponge ball, be conducive to for Calculus plugging device provides lubrication, solves the problems, such as that traditional calculus plugging device does not have mating lubricating tool.

3. in the utility model, the setting of the lamp bead is conducive to as medical staff when carrying out calculus closure work Floor light is provided, solves the problems, such as that operation illumination cannot be provided for calculus plugging device.

4. in the utility model, the setting of the battery case is conducive to replace the insufficient dry cell of electric power, conveniently make With.

5. in the utility model, the setting of the snoot is conducive to the illuminance for increasing lamp bead.

6. in the utility model, the setting of the anchor ear and pipe clamp is conducive to the fixation of collection box and light bulb.

7. in the utility model, being provided with sealing strip between the Storage Box and box cover, being beneficial to prevent external sundries It is used into Storage Box internal influence.

8. in the utility model, the limit plate and snap-gauge clamping setting are conducive to secured adjusted bracelet.

9. in the utility model, the front surface lower position of the fixation bracelet and the front surface upper right quarter for adjusting bracelet Position is respectively sleeved on non-slip rubber set, is conducive to the grasping comfort level for increasing medical staff.

10. in the utility model, the setting of the collection box, external calculus will be taken out by, which being conducive to, is temporarily stored, just It studies and focuses in the later period.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the structural schematic diagram of the disinfection storage box structure of the utility model.

Fig. 3 is that the calculus of the utility model collects the structural schematic diagram of box device.

Fig. 4 is the structural schematic diagram of the assist illuminator device of the utility model.

Fig. 5 is the structural schematic diagram of the lubrication sponge spherical structure of the utility model.

In figure:

1, outer sheath；2, slip ring；3, elastic slice；4, containing fabric；5, traveller；6, disinfection storage box structure；61, Storage Box；62, Box cover；63, fastening plates；64, aerofoil profile bolt；65, connecting rod is sterilized；66, squeezing handle；67, rayon balls；7, calculus is collected box-packed It sets；71, collection box；72, anchor ear；73, water-absorbing sponge pad；74, observation window；75, dustproof cover；76, opening handle；8, floor light Lamp device；81, light bulb；82, control switch；83, battery case；84, snoot；85, lamp bead；86, pipe clamp；9, sponge chou is lubricated Structure；91, cartridge；92, cover；93, hanging ring；94, lubricating fluid；95, lubrication operation bar；96, Anti-slip cover；97, sponge ball；10, Drawing pipe；11, fixed bracelet；12, bracelet is adjusted；13, limit plate；14, finger ring；15, snap-gauge.

Specific embodiment

The utility model is described further below in conjunction with attached drawing:

Embodiment:

As shown in attached drawing 1 to attached drawing 5

The utility model provides a kind of calculus plugging device that can be improved calculus clearance rate, including outer sheath 1, slip ring 2, bullet Piece 3, containing fabric 4, traveller 5, disinfection storage box structure 6, calculus collect box device 7, and assist illuminator device 8 lubricates sponge ball Structure 9 pulls pipe 10, and fixed bracelet 11 adjusts bracelet 12, limit plate 13, finger ring 14 and snap-gauge 15, and the slip ring 2 is socketed In the front surface upper position of outer sheath 1；Axis connects in the outer surface surrounding position of slip ring 2 elastic slice 3 respectively；The receipts Naboo 4 is socketed in the upper end position of outer sheath 1 and is riveted on the outer end position of elastic slice 3；The traveller 5 extends transversely through outer sheath The sliding slot opened up respectively at left and right sides of 1 upper inside is interior and is welded on the bosom position of slip ring 2；The disinfection storage Box structure 6 is connected to the left part position of assist illuminator device 8；The calculus collects the left side that box device 7 is mounted on outer sheath 1 Side position；The assist illuminator device 8 is connected to the right positions of outer sheath 1；The lubrication sponge spherical structure 9 is installed In the lower left quarter position for adjusting bracelet 12；The drawing pipe 10 is longitudinal to be inserted through the left side interior location activity for adjusting bracelet 12 It connects the bosom position in outer sheath 1 and is welded on the lower surface middle position of traveller 5；The left side of the fixation bracelet 11 Lower end position of the upper surface transverse weld in outer sheath 1；Adjusting 12 axis of bracelet connects on a front surface left side for fixed bracelet 11 Side lower part position simultaneously connects setting with drawing 10 axis of pipe；13 longitudinal axis of limit plate connects the right end position in fixed bracelet 11； The finger ring 14 is welded on the right side middle position of limit plate 13；15 integrated setting of snap-gauge is adjusting bracelet 12 Right lower quadrant position；The lubrication sponge spherical structure 9 includes cartridge 91, cover 92, hanging ring 93, lubricating fluid 94, lubrication operation Bar 95, Anti-slip cover 96 and sponge ball 97,92 horizontal thread of cover are connected to the upper end position of cartridge 91；Described hangs Ring 93 is welded on the upper surface middle position of cover 92；The inner lower position of cartridge 91 is arranged in the lubricating fluid 94； The placed longitudinally inside left position in cartridge 91 of the lubrication operation bar 95；The Anti-slip cover 96 is longitudinal to be socketed in profit The upper end position of sliding operating stick 95；The sponge ball 97 is socketed in the lower end position of lubrication operation bar 95.

In above-described embodiment, specifically, the disinfection storage box structure 6 includes Storage Box 61, box cover 62, fastening plates 63, aerofoil profile bolt 64 sterilizes connecting rod 65, squeezing handle 66 and rayon balls 67, and the longitudinal hinge connection of the box cover 62 is storing The leftward position of box 61；Upper end position of 63 transverse weld of fastening plates in box cover 62；64 screw thread of aerofoil profile bolt It is connected to the intersection position of fastening plates 63 and Storage Box 61, the upper surface that the aerofoil profile bolt 64 is connected to fastening plates 63 is right Side position；The placed longitudinally inner lower position in Storage Box 61 of the disinfection connecting rod 65；66 longitudinal sleeve of squeezing handle Connect the upper end position in disinfection connecting rod 65；The rayon balls 67 is socketed in the lower end position of disinfection connecting rod 65.

In above-described embodiment, specifically, it includes collection box 71, anchor ear 72, water-absorbing sponge that the calculus, which collects box device 7, Pad 73, observation window 74, dustproof cover 75 and opening handle 76, cross screw is connected to the right side of collection box 71 to the anchor ear 72 respectively Two positions above and below side；The water-absorbing sponge pad 73 is placed across the bottom inner surface position of collection box 71；The sight Examine the longitudinal front surface middle position for being embedded in collection box 71 of window 74；75 horizontal thread of dustproof cover is connected to collection box 71 Upper end position；76 integrated setting of opening handle is in the front surface middle position of dustproof cover 75.

In above-described embodiment, specifically, the assist illuminator device 8 includes light bulb 81, control switch 82, battery case 83, snoot 84, lamp bead 85 and pipe clamp 86, the control switch 82 are embedded in the right upper portion position of light bulb 81；Described The longitudinal front surface lower middle position for being provided with light bulb 81 of battery case 83；The snoot 84 is threaded in light bulb 81 Upper end position；The lamp bead 85 is threaded in the bottom inner surface middle position of snoot 84；The pipe clamp 86 is distinguished Cross screw is connected to two positions in the left side of light bulb 81 or more.

In above-described embodiment, specifically, 61 screw of Storage Box is connected to the leftward position of pipe clamp 86；Described disappears Malicious connecting rod 65, squeezing handle 66 and rayon balls 67 are each provided with multiple respectively.

In above-described embodiment, specifically, the anchor ear 72 is laterally socketed in the front surface lower portion of outer sheath 1 respectively It sets.

In above-described embodiment, specifically, the pipe clamp 86 is laterally socketed in the front surface lower portion of outer sheath 1 respectively It sets；The anchor ear 72 is located at the lower position of pipe clamp 86.

In above-described embodiment, specifically, the hanging ring 93 is welded on the left side lower surface middle position for adjusting bracelet 12.

In above-described embodiment, specifically, the front surface lower position of the fixation bracelet 11 and adjusting bracelet 12 are just Surface upper right quarter position is respectively sleeved on non-slip rubber set.

In above-described embodiment, specifically, the limit plate 13 and the clamping setting of snap-gauge 15；The hanging ring 93 is specifically set There are two setting.

In above-described embodiment, specifically, being provided with sealing strip between the Storage Box 61 and box cover 62.

In above-described embodiment, specifically, being electrically connected between the control switch 82 and lamp bead 85.

Working principle

The utility model when in use opens box cover 62 firstly, turning aerofoil profile bolt 64 to the left, and hand squeezing handle 66 will Rayon balls 67 immerses in external spare ethanol for disinfection, then takes out rayon balls 67 carrying out wiping wine to patient's corresponding site Essence carries out disinfection, and holds cover 92 and unscrews cartridge 91, hand takes Anti-slip cover 96 by sponge ball 97 that lubricating fluid 94 is uniform respectively It is applied to the outer surface of containing fabric 4 and the outer surface upper position of outer sheath 1, while external spare dry cell is put into battery case In 83, then operation-control switch 82 opens lamp bead 85 and carries out operating illumination；Secondly, bracelet 12 will be adjusted to fixed bracelet 11 Compression is set, traveller 5 moves down with spring plate 3 and then receives the upper position that containing fabric 4 is tightly attached to 1 outer surface of outer sheath at this time Tightly, while cooperating endoscope device in outside that 4 upper end of containing fabric is slowly inserted into the patient, into after patient's body, according to outside Interior endoscope device understands calculus position, while containing fabric 4 is extended to calculus rear positions, then will adjust bracelet 12 and presses downwards, And connected and fixed with limit plate 13 and finger ring 14, when adjusting the pushing opening of bracelet 12, pipe 10 is pulled at this time and pushes traveller 5 It drives slip ring 2 to move up, and struts containing fabric 4 under the action of elastic slice 3, before calculus is located at elastic slice 3 and containing fabric 4 at this time Portion position, medical staff pull back plugging device together with patient's body calculus according to endoscope device in outside, at this time patient's body Calculus is fixed on the inner wall position of patient's stone location organ by elastic slice 3 and containing fabric 4；Again, it is set using external laser lithotripsy Standby or Pneumatic Lithotripsy smashes patient's body calculus to less than two millimeters, and the calculus after smashing is temporary due to containing fabric 4 It is incorporated in 4 interior location of containing fabric, prevents rubble moving influence clearance rate, it will be outside rubble lead body by external diversing flow system Or calculus fragment removed by endoscope device channel in outside it is external, finally by limit plate 13 remove simultaneously will adjusting bracelet 12 to Fixed 11 direction of bracelet is close to, and the rubble powder of easily collecting is not contained cloth 4 and is wrapped in inside at this time, and is slowly pulled out solid Determine bracelet 11, removes work until exiting patient and completing calculus in vitro.

Using technical solution described in the utility model or those skilled in the art in technical solutions of the utility model Under inspiration, similar technical solution is designed, and reaches above-mentioned technical effect, is the protection model for falling into the utility model It encloses.

Claims

1. a kind of calculus plugging device that can be improved calculus clearance rate, which is characterized in that this can be improved the knot of calculus clearance rate Stone plugging device includes outer sheath (1), slip ring (2), elastic slice (3), containing fabric (4), traveller (5), disinfection storage box structure (6), knot Stone collects box device (7), assist illuminator device (8), lubricates sponge spherical structure (9), drawing pipe (10), fixed bracelet (11), It adjusts bracelet (12), limit plate (13), finger ring (14) and snap-gauge (15), the slip ring (2) are socketed in the positive table of outer sheath (1) Face upper position；Axis connects in the outer surface surrounding position of slip ring (2) elastic slice (3) respectively；Containing fabric (4) socket Outer sheath (1) upper end position and be riveted on the outer end positions of elastic slice (3)；The traveller (5) extends transversely through outer sheath (1) Upper inside at left and right sides of in the sliding slot that opens up respectively and be welded on the bosom position of slip ring (2)；The disinfection storage Deposit the left part position that box structure (6) is connected to assist illuminator device (8)；Calculus collection box device (7) is mounted on outer The leftward position of sheath (1)；The assist illuminator device (8) is connected to the right positions of outer sheath (1)；The lubrication Sponge spherical structure (9) is mounted on the lower left quarter position for adjusting bracelet (12)；The drawing pipe (10) is longitudinally through adjusting bracelet (12) left side interior location activity is plugged on the bosom position of outer sheath (1) and is welded in the lower surface of traveller (5) Between position；Lower end position of the left side upper surface transverse weld of the fixation bracelet (11) in outer sheath (1)；The adjusting Bracelet (12) axis connects the front surface left lower position in fixed bracelet (11) and connects setting with drawing pipe (10) axis；The limit Position plate (13) longitudinal axis connects the right end position in fixed bracelet (11)；The finger ring (14) is welded on the right side of limit plate (13) Middle position；Snap-gauge (15) integrated setting is in the right lower quadrant position for adjusting bracelet (12)；The lubrication sponge ball Structure (9) includes cartridge (91), cover (92), hanging ring (93), lubricating fluid (94), lubrication operation bar (95), Anti-slip cover (96) With sponge ball (97), the cover (92) horizontal thread is connected to the upper end position of cartridge (91)；The hanging ring (93) It is welded on the upper surface middle position of cover (92)；The lubricating fluid (94) is arranged in the inner lower position of cartridge (91) It sets；The placed longitudinally inside left position in cartridge (91) of the lubrication operation bar (95)；The Anti-slip cover (96) is vertical To the upper end position for being socketed in lubrication operation bar (95)；The sponge ball (97) is socketed in the lower end position of lubrication operation bar (95) It sets.

2. can be improved the calculus plugging device of calculus clearance rate as described in claim 1, which is characterized in that the disinfection storage Depositing box structure (6) includes Storage Box (61), box cover (62), fastening plates (63), aerofoil profile bolt (64), sterilizes connecting rod (65), pinches Handle (66) and rayon balls (67), leftward position of the box cover (62) the longitudinal direction hinge connection in Storage Box (61)；Described Upper end position of fastening plates (63) transverse weld in box cover (62)；The aerofoil profile bolt (64) is threaded in fastening plates (63) With the intersection position of Storage Box (61), the aerofoil profile bolt (64) is connected to the upper surface right positions of fastening plates (63)； The placed longitudinally inner lower position in Storage Box (61) of the disinfection connecting rod (65)；The squeezing handle (66) is longitudinally socketed In the upper end position of disinfection connecting rod (65)；The rayon balls (67) is socketed in the lower end position of disinfection connecting rod (65).

3. can be improved the calculus plugging device of calculus clearance rate as described in claim 1, which is characterized in that the calculus is received Collection box device (7) includes collection box (71), anchor ear (72), water-absorbing sponge pad (73), observation window (74), dustproof cover (75) and unlatching Handle (76), cross screw is connected to two positions in the right side of collection box (71) or more to the anchor ear (72) respectively；Described Water-absorbing sponge pad (73) is placed across the bottom inner surface position of collection box (71)；The observation window (74) is longitudinally embedded in The front surface middle position of collection box (71)；Described dustproof cover (75) horizontal thread is connected to the upper end position of collection box (71) It sets；Opening handle (76) integrated setting is in the front surface middle position of dustproof cover (75).

4. can be improved the calculus plugging device of calculus clearance rate as described in claim 1, which is characterized in that the auxiliary is shone Bright lamp device (8) includes light bulb (81), control switch (82), battery case (83), snoot (84), lamp bead (85) and pipe clamp (86), the control switch (82) is embedded in the right upper portion position of light bulb (81)；The battery case (83) longitudinally opens up In the front surface lower middle position of light bulb (81)；The snoot (84) is threaded in the upper end position of light bulb (81)； The lamp bead (85) is threaded in the bottom inner surface middle position of snoot (84)；The pipe clamp (86) is lateral respectively Screw is connected to two positions in the left side of light bulb (81) or more.

5. can be improved the calculus plugging device of calculus clearance rate as claimed in claim 2, which is characterized in that the disinfection connects Extension bar (65), squeezing handle (66) and rayon balls (67) are each provided with multiple respectively.

6. can be improved the calculus plugging device of calculus clearance rate as claimed in claim 3, which is characterized in that the anchor ear (72) it is laterally socketed in the front surface lower position of outer sheath (1) respectively.

7. can be improved the calculus plugging device of calculus clearance rate as claimed in claim 4, which is characterized in that the pipe clamp (86) it is laterally socketed in the front surface lower position of outer sheath (1) respectively.

8. can be improved the calculus plugging device of calculus clearance rate as described in claim 1, which is characterized in that the hanging ring (93) it is welded on the left side lower surface middle position for adjusting bracelet (12).

9. can be improved the calculus plugging device of calculus clearance rate as described in claim 1, which is characterized in that the fixation hand The front surface lower position of ring (11) and the front surface upper right quarter position for adjusting bracelet (12) are respectively sleeved on non-slip rubber set.

10. can be improved the calculus plugging device of calculus clearance rate as claimed in claim 4, which is characterized in that the limit Plate (13) and snap-gauge (15) clamping setting；The hanging ring (93) is specifically there are two settings.