CN204637320U - Bounce tongue lock stops integral type radiotherapy body location hollow fixed mount - Google Patents

Abstract

This utility model provides a kind of bounce tongue lock to stop integral type radiotherapy body location hollow fixed mount, stops integral type fixed mount and Tenon integral type body film two parts form by bounce tongue lock.This utility model Main Function is that the outline at conformal trunk position is spacing fixing, adopt joinery and its construction, play the principle of the dual locking of tongue padlock, the design of one film bar and hollow base plate, reach pinpoint makes more convenient to operate and dosage more accurate simultaneously, realize fixing the spacing of human body breast body outline, efficiently solve all drawbacks and the deficiency of current radiotherapy localization structure existence.This utility model is reasonable in design, easy to operate, safety, environmental protection, and fixed effect is obvious, has stronger practicality and versatility.

Description

Bounce tongue lock stops integral type radiotherapy body location hollow fixed mount

Technical field

This utility model belongs to radiotherapy field of locating technology, relate to a kind of radiotherapy device for positioning and securing system, particularly relate to a kind of bounce tongue lock and stop integral type radiotherapy body location hollow fixed mount, being applicable to the stationary positioned at the positions such as human body breast, body, is the important tool of accurately locating in radiotherapy, implementing.

Background technology

low temperature thermo-plastic plankinga kind of macromolecule polyester of special synthesis, through the novel medical material of series of physical and chemical method process, for the making material of orthopaedics extenal fixation, orthosis, brace.Due to this material have do not absorb ray, thermoplastic after there is the outstanding properties such as good plastotype effect and specific shape memory function (when plastotype is unsatisfied with can post bake, again plastotype or local heat shape again), and simple to operate, convenient fixing, be optimal external fixation system in current radiotherapy localization.

Current, in our radiotherapy, the fixing low temperature of the employing mostly thermo-plastic planking of patient combines the object that the fixing mode of machinery reaches location.The requirement of radiocurable location: top to bottom, left and right, front and rear three-dimensional requires accurately fixing, displacement error <6MM.The body such as breast, abdomen fixes departure difficulty, and heart beating, the breathing and enterokinesia etc. of patient affect locating effect.Although mechanical means is various on the market, practical effect detects and finds mostly there is displacement error.

The deficiency that current radiotherapy localization exists has: (1) Low Temperature Thermal plastic film and base plate there is fixed interval (FI); (2) Low Temperature Thermal plastic film body retractility is difficult to control; (3) easily there is locking and come off in fixation procedure, fixes unsuccessfully; (4) fixation procedure causes skin to squeeze folder injury accident; (5) standing finish split design, easily loses; (6) fixing locking mechanical structure is directly stressed; (7) use operation effort, time-consuming and loaded down with trivial details.

Based on above deficiency and drawback, we devise a radiotherapy localization fixture, and the supporting dependent body film be combined with it.

Summary of the invention

The purpose of this utility model solves conventional radiotheraphy location drawback, provides a kind of bounce tongue lock to stop integral type radiotherapy body location hollow fixed mount.It is the pinpoint device of a kind of radiotherapy.This utility model Main Function is that the outline at conformal trunk position is spacing fixing, adopt joinery and its construction, play the principle of the dual locking of tongue padlock, one film bar and the design of hollow base plate, reach pinpoint and make more convenient to operate and dosage is more accurate simultaneously.

This utility model stops integral type fixed mount by bounce tongue lock and Tenon integral type body film two parts form, bounce tongue lock stops integral type fixed mountlocated recessed, base plate slope, treatment tank, base plate locating hole, base plate hollow bulb, bottom plate combined locating hole, 10 tool mortise and tenon type pressure plate structures and 8 tool bullet tongue depressor structures formed by fixing cell wall, pressing plate, fixed base plate, pressing plate shaft, pressing plate.Fixed base plate is the agent structure of fixed mount, be rectangle, central authorities' hollow out is designed with base plate hollow bulb, the long edge in both sides is respectively arranged with 5 tool mortise and tenon type pressure plate structures successively, between be connected to form fixing cell wall and the pressing plate of strip, pressing plate freely rotates around pressing plate shaft, its center platen front, pressing plate location is designed with recessed between two adjacent tool mortise and tenon type pressure plate structures, be designed with between the two tool mortise and tenon type pressure plate structures that holddown groove wall surface is adjacent and play tongue depressor structure, article two, the fixing cell wall of strip and the treatment tank of fixed base plate formation " U " shape, fixed base plate both sides shorter edge is respectively connected with base plate slope, fixed base plate upper shed near base plate slope has base plate locating hole and base plate to meet locating hole, wherein mortise and tenon type pressure plate structureleft a blank by fixing cell wall, fixing tenon, pressing plate pedestal, pressing plate, the fixing fourth of the twelve Earthly Branches, pressing plate, fixed base plate, pressing plate shaft and tenon stricture of vagina form jointly, fixing cell wall is the edge of sphenoid perpendicular to fixed base plate of a upper-thin-lower-thick, the center bottom of fixing cell wall is designed with pressing plate pedestal, middle traveling has pressing plate shaft, pressing plate one end dissociative, is designed with pressing plate and leaves a blank and connect pressing plate shaft and pressing plate pedestal is connected as a single entity in the middle part of the other end, pressing plate is designed with the fixing fourth of the twelve Earthly Branches, the fixing tenon that corresponding with it is on fixing cell wall, it has multi-turn tenon stricture of vagina, wherein play tongue depressor structureby fixing cell wall, pressing plate is left a blank, pressing plate, fixed base plate, pressing plate shaft, play tongue, play tongue pedestal, wedge button edge and bullet tongue single-way switch structure form jointly, fixing cell wall is the edge of sphenoid perpendicular to fixed base plate of a upper-thin-lower-thick, the center bottom of fixing cell wall is designed with and plays tongue pedestal, in it, hollow traveling has bullet tongue single-way switch structure, play tongue and be connected in bullet tongue single-way switch structure, pressing plate shaft has been crossed in the two side playing tongue pedestal, pressing plate one end dissociative, be designed with pressing plate in the middle part of the other end leave a blank and connect pressing plate shaft and play tongue pedestal and be connected as a single entity, its center platen leaves a blank sidewall along being designed with wedge button edge, play tongue single-way switch structureadopt ratchet mechanism principle, for unidirectional locking and the release control of relevant bullet tongue.By oval wheel shaft, single-way switch, elliptic wheel, ratchet release is recessed, pawl axis, check spring, ratchet, pawl slot, ratchet slot, play tongue pedestal, initiatively IOB, ratchet, drive spring and sliding button form jointly, the main body of this structure is the bullet tongue pedestal of a cuboid, left in it, part on the right side and do not open pawl slot and ratchet slot, in ratchet slot, traveling has drive spring and active IOB, bottom is connected with diapire in bullet tongue pedestal, the other end is connected to initiatively IOB, surface is connected with sliding button, ratchet connects the edge of initiatively IOB, direction of travel is consistent with ratchet slot, have elliptic wheel and single-way switch in pawl slot, both are connected with the inwall of pawl slot by oval wheel shaft, ratchet is positioned at the boundary of pawl slot and ratchet slot, is connected with the inwall of pawl slot by pawl axis, and it is recessed that its one end is designed with ratchet release, and the other end is the ratchet of wedge shape, check spring one end is vertically connected at the medial wall of pawl slot, and the other end is connected to ratchet.

tenon integral type body filmshake hands to form by by low temperature thermo-plastic planking, film bar, the film fourth of the twelve Earthly Branches, film bar Positioning bean and film bar, low temperature thermo-plastic planking is the agent structure of body film, it is a rectangle, wherein long edge, both sides is respectively connected with film bar, every root film bar surface distributed has five film fourths of the twelve Earthly Branches running through holostrome, four film bar Positioning beans are alternate to be designed between five film fourths of the twelve Earthly Branches, the edge that film bar is connected with low temperature thermo-plastic planking is designed with film bar and shakes hands.

This utility model is body accurate radiotherapy device for positioning and securing, and what can realize human body breast body outline completely is spacing fixing, can reach or close to zero shift; Play the intersection force structure design science of tongue structure and pressing plate, without the need to worrying fixing the getting loose between the operating period; The treatment tank application of " U " shape can avoid human injury's events such as pinching to occur; Integral type (film bar) design can operate more efficiently and reduce the retractility error of body film as far as possible; The hollow design design of fixed base plate makes dose distribution more accurate; Play the design of tongue structure, make technical staff operate locking one step and complete; The detailed design of the hommizations such as fixed base plate locating hole, film bar handle can make technician operate to simplify and convenient.Efficiently solve all drawbacks and the deficiency of the existence of current radiotherapy localization structure.This utility model is reasonable in design, easy to operate, safety, environmental protection, and fixed effect is obvious, has stronger practicality and versatility.

Accompanying drawing explanation

Fig. 1 is that bounce tongue lock stops integral type fixed rack structure schematic diagram.

Fig. 2 is Tenon integral type body membrane structure schematic diagram.

Fig. 3 is mortise and tenon type pressure plate structure 102 structural representation.

Fig. 4 plays tongue depressor structure 107 structural representation.

Fig. 5 plays tongue single-way switch structure 106 structural representation.

Detailed description of the invention

This utility model is further described in conjunction with the accompanying drawings and embodiments.

Embodiment 1 bounce tongue lock stops integral type radiotherapy body location hollow fixed mount

See Fig. 1, Fig. 2, this utility model stops integral type fixed mount by bounce tongue lock and Tenon integral type body film two parts form, bounce tongue lock stops integral type fixed mountlocate recessed 33, base plate slope 34 by fixing cell wall 19, pressing plate 24, fixed base plate 25, pressing plate shaft 26, pressing plate, treatment tank 35, base plate locating hole 37, base plate hollow bulb 38, bottom plate combined locating hole 39,10 tool mortise and tenon type pressure plate structure 102 and 8 tool bullet tongue depressor structure 107 form.The agent structure of fixed mount is one piece of rectangular fixed base plate 25, and central hollow out is designed with base plate hollow bulb 38, plays the effect reducing ray attenuation; The long edge in both sides is respectively arranged with 5 tool mortise and tenon type pressure plate structures 102 successively, between parallel fixing cell wall 19 and the pressing plate 24 being connected to form strip; Pressing plate 24 can rotate around pressing plate shaft 26; On its center platen 24 front, (between two adjacent tool mortise and tenon type pressure plate structures 102) are designed with pressing plate location recessed 33, and the Positioning bean 4 that corresponding with it is on supporting body mould bar, plays a part accurately to locate (press strip 4); Be designed with between the two tool mortise and tenon type pressure plate structures 102 that fixing cell wall 19 surface is adjacent and play tongue depressor structure 107; Article two, the fixing cell wall 19 of strip and fixed base plate 25 form the treatment tank 35 of " U " shape; Fixed base plate 25 both sides shorter edge is respectively connected with base plate slope 34; Fixed base plate 25 upper shed near base plate slope 34 has base plate locating hole 37 and bottom plate combined locating hole 39, plays fixing spacing fixed base plate, fixed base plate is connected with therapeutic bed.See Fig. 2, tenon integral type body filmjointly be made up of low temperature thermo-plastic planking 1, film bar 2, the film fourth of the twelve Earthly Branches 3, film bar Positioning bean 4 and film bar handle 5.Agent structure of the present utility model is a rectangular low temperature thermo-plastic planking 1, and its two longer edges are connected with the long limit of film bar 2; The minor face of film bar 2 flushes with the minor face of low temperature thermo-plastic planking 1; Two ends, the centre on every root film bar 2 surface are equally spaced five and run through the film fourth of the twelve Earthly Branches 3 of holostrome, conformal supporting for the upper fixing tenon 20 of fixed body frame (base plate); Five film fourths of the twelve Earthly Branches 3 separately between equidistant design have four film bar Positioning beans 4, what can be combined for film bar 2 with respective accessory is fastening; The edge that film bar 2 is connected with low temperature thermo-plastic planking 1 is designed with two film bars and shakes hands 5, be convenient to installation and the dismounting of the parts such as body film and supporting base plate.

See Fig. 3, " mortise and tenon type pressure plate structure 102 "adopt joinery and its construction principle, fixing spacing for press strip.Leave a blank 22 by fixing cell wall 19, fixing tenon 20, pressing plate pedestal 21, pressing plate, the fixing fourth of the twelve Earthly Branches 23, pressing plate 24, fixed base plate 25, pressing plate shaft 26 and tenon stricture of vagina 27 form jointly.Fixing cell wall 19 is the sphenoid of a upper-thin-lower-thick, and it is vertically connected at an edge of fixed base plate 25, and the configuration of fixing cell wall 19 wedge body makes the curved-surface structure that can better attach and be suitable for human body.The center bottom of fixing cell wall 19 is designed with pressing plate pedestal 21, and middle traveling has pressing plate shaft 26; Pressing plate 24 1 end dissociative, be designed with pressing plate in the middle part of the other end and leave a blank 22 and connect pressing plate shaft 26 and be connected as a single entity with pressing plate pedestal 21, pressing plate 24 can along pressing plate shaft axial rotation.Pressing plate 24 is designed with the fixing fourth of the twelve Earthly Branches 23, the fixing tenon 20 that corresponding with it is on fixing cell wall 19.Fixing tenon 20 is designed to the end and slightly pushes up thin circular cone structure, realizes linearly fastening; Its surface distributed has the tenon stricture of vagina 27 of a circle circle, can increase the frictional force between the fixing fourth of the twelve Earthly Branches 23 and fixing tenon 20.

See Fig. 4, play tongue depressor structure 107adopt and play tongue and clash into the design principle of padlock, fixing spacing for relevant press strip.Leave a blank 22 by fixing cell wall 19, pressing plate, pressing plate 24, fixed base plate 25, pressing plate shaft 26, play tongue 54, play tongue pedestal 55, wedge button is along 56 and play tongue single-way switch structure 106 and jointly form.Fixing cell wall 19 is the sphenoid of a upper-thin-lower-thick, and it is vertically connected at an edge of fixed base plate 25, and the configuration of fixing cell wall 19 wedge body makes the curved-surface structure that can better attach and be suitable for human body.The center bottom of fixing cell wall 19 is designed with and plays tongue pedestal 55; In it, hollow traveling has bullet tongue single-way switch structure 106; Play tongue 54 and be connected in bullet tongue single-way switch structure 106, realize linking with a certain parts played in tongue single-way switch structure 106; The two side of bullet tongue pedestal 55 is crossed and is connected with pressing plate shaft 26, and axle two ends are connected with one end of pressing plate 24, be designed with pressing plate and leave a blank 22 in the middle part of its other end, and pressing plate 24 can rotate round pressing plate shaft 26; Its center platen leaves a blank 22 sidewalls along being designed with wedge button along 56, facilitates pressing plate 24 and the locking playing tongue 54.

See Fig. 5, play tongue single-way switch structure 106adopt ratchet mechanism principle, for unidirectional locking and the release control of relevant bullet tongue.Discharge recessed 43, pawl axis 44, check spring 45, ratchet 46, pawl slot 47, ratchet slot 48 by oval wheel shaft 40, single-way switch 41, elliptic wheel 42, ratchet, play tongue pedestal 49, initiatively IOB 50, ratchet 51, drive spring 52 and sliding button 53 form jointly.The main body of this structure is the bullet tongue pedestal 49 of a cuboid, left and rightly in it has pawl slot 47 and ratchet slot 48; In ratchet slot 48, traveling has drive spring 52 and active IOB 50, and drive spring 52 bottom is connected with diapire in bullet tongue pedestal 49, and the other end is connected to initiatively IOB 50; It is connected with sliding button 53, for manual toggle initiatively IOB 50; Ratchet 51 is connected to the edge of initiatively IOB 50, and direction of travel is consistent with ratchet slot 48; Pawl slot 47 inwall is connected with oval wheel shaft 40, axle is socketed with the elliptic wheel 42 and single-way switch 41 liang of parts that are connected as a single entity, and both can rotate round oval wheel shaft 40 simultaneously; Ratchet 46 is positioned at the boundary of two grooves, is connected by the inwall of pawl axis 44 with pawl slot 47, and its one end is designed with ratchet release recessed 43, and the other end is the ratchet 46 of wedge shape, and ratchet 46 can rotate around pawl axis 44; Check spring 45 one end is vertically connected at the medial wall of pawl slot 47, and the other end is connected to ratchet 46.Acting as of check spring 45 keeps ratchet release recessed 43 to be close to elliptic wheel 42.

Embodiment 2 using method of the present utility model

1. locking.Patient lies low in the treatment tank 35 of " U " shape, operation technician two people cooperation is carried out jointly, Tenon integral type body film is immersed the thermostatic water tank of 60 ~ 70 degrees Celsius, after fully softening, everyone mentions the film bar handle 5 on one side separately respectively, be covered in the position needing stationary positioned, and stretched softening low temperature thermo-plastic planking 1 by relative film bar 2, in the fixing tenon 20 film fourth of the twelve Earthly Branches 3 put in place on fixed mount.Pressing plate 24 is upwards rotated by pressing plate shaft 26, on pressing plate 24, wedge button clashes into along 56 and plays tongue 54, the outer rim structure of its arc and the reason such as elastic force is limited, play tongue 54 along ratchet slot 48 slide downward, until wedge button on pressing plate 24 along 56 turn over play tongue 54 slide up and down the cross point of track time, in the elastic force effect of drive spring 52, play tongue 54 and return to original upper vertex position, now pressing plate 24 is positioned at the inner side playing tongue 54, and film bar 2 will be stopped by pressing plate 24 and be locked in wherein.Meanwhile, the fixing fourth of the twelve Earthly Branches 23 and fixing tenon 20 also fasten mutually, because thin circular cone structure is slightly pushed up at fixing tenon 20 end, can make to combine both are linearly fastening, multi-turn tenon stricture of vagina 27 structure can keep fixation clip static, and dual locking one step completes.

2. remove.Rotate single-way switch 41, when the minor axis of the elliptic wheel 42 making it drive faces ratchet release recessed 43, now ratchet 46 is in running order.Under the elastic force effect of check spring 45, ratchet 46 will be close to ratchet 51, and when manually down stirring sliding button 53, when namely having external force to order about active IOB 50 slide downward, ratchet 46 slides on the back of tooth of ratchet 51; When external force disappears, due to the elastic force effect of drive spring 52, initiatively IOB 50 will be sliding to last time, and now ratchet 46 just inserts in the teeth groove of ratchet 51, relatively fixing due to pawl axis 44, and active IOB 50 transfixion, realizes unipolarity.Play tongue 54 and continue slide downward, until play the upper edge of tongue 54 decrease beyond wedge button on pressing plate 24 along 56 time, pressing plate 24 freely can rotate along pressing plate shaft 26.Pressing plate 24 has been opened.Latch-release, film bar 2 can be separated with fixed mount.

Follow-up formal therapy is according to the low temperature thermo-plastic planking of molding, and fixing means is consistent.

Embodiment 3 radiotherapy body fixed mount Tenon sheet type compares with bullet tongue formula, and result is see table 1.

Claims (6)

1. bounce tongue lock stops an integral type radiotherapy body location hollow fixed mount, it is characterized in that, stops integral type fixed mount and Tenon integral type body film two parts form by bounce tongue lock, bounce tongue lock stops integral type fixed mountby fixing cell wall (19), pressing plate (24), fixed base plate (25), pressing plate shaft (26), pressing plate location recessed (33), base plate slope (34), treatment tank (35), base plate locating hole (37), base plate hollow bulb (38), bottom plate combined locating hole (39), 10 tool mortise and tenon type pressure plate structures (102) and 8 tool bullet tongue depressors structure (107) composition, fixed base plate (25) is that a block length is square, central authorities' hollow out is provided with base plate hollow bulb (38), the long edge in both sides is respectively arranged with 5 tool mortise and tenon type pressure plate structures (102) successively, between parallel fixing cell wall (19) and the pressing plate (24) being connected to form strip, pressing plate (24) front is provided with between two adjacent tool mortise and tenon type pressure plate structures (102) pressing plate location recessed (33), the Positioning bean (4) that corresponding with it is on supporting body mould bar, be provided with between the two tool mortise and tenon type pressure plate structures (102) that fixing cell wall (19) surface is adjacent and play tongue depressor structure (107), article two, the fixing cell wall (19) of strip and the treatment tank (35) of fixed base plate (25) formation " U " shape, fixed base plate (25) both sides shorter edge is respectively connected with base plate slope (34), fixed base plate (25) upper shed near base plate slope (34) has base plate locating hole (37) and bottom plate combined locating hole (39), tenon integral type body filmby low temperature thermo-plastic planking (1), film bar (2), the film fourth of the twelve Earthly Branches (3), film bar Positioning bean (4) and film bar handle (5) are formed, low temperature thermo-plastic planking (1) is rectangle, its two longer edges are connected with the long limit of film bar (2), the minor face of film bar (2) flushes with the minor face of low temperature thermo-plastic planking (1), the two ends on every root film bar (2) surface, centre is equally spaced five and runs through the film fourth of the twelve Earthly Branches (3) of holostrome, four film bar Positioning beans (4) are equidistantly provided with between five film fourths of the twelve Earthly Branches (3) are respective, the edge that film bar (2) is connected with low temperature thermo-plastic planking (1) is provided with two film bars and shakes hands (5), mortise and tenon type pressure plate structure (102)by fixing cell wall (19), fixing tenon (20), pressing plate pedestal (21), pressing plate is left a blank (22), the fixing fourth of the twelve Earthly Branches (23), pressing plate (24), fixed base plate (25), pressing plate shaft (26) and tenon stricture of vagina (27) composition, fixing cell wall (19) is the sphenoid of a upper-thin-lower-thick, it is vertically connected at an edge of fixed base plate (25), the center bottom of fixing cell wall (19) is provided with pressing plate pedestal (21), middle traveling has pressing plate shaft (26), pressing plate (24) one end dissociative, be provided with pressing plate in the middle part of the other end to leave a blank (22) and connect pressing plate shaft (26) and pressing plate pedestal (21) and be connected as a single entity, pressing plate (24) is provided with the fixing fourth of the twelve Earthly Branches (23), the fixing tenon (20) that corresponding with it is on fixing cell wall (19), fixing tenon (20) is set as the end and slightly pushes up thin circular cone structure, fixing tenon (20) surface distributed has the tenon stricture of vagina (27) of a circle circle, play tongue depressor structure (107)by fixing cell wall (19), pressing plate is left a blank (22), pressing plate (24), fixed base plate (25), pressing plate shaft (26), play tongue (54), play tongue pedestal (55), wedge button is along (56) and play tongue single-way switch structure (106) composition, fixing cell wall (19) is the sphenoid of a upper-thin-lower-thick, it is vertically connected at an edge of fixed base plate (25), the center bottom of fixing cell wall (19) is provided with and plays tongue pedestal (55), in it, hollow traveling has bullet tongue single-way switch structure (106), play tongue (54) to be connected with bullet tongue single-way switch structure (106), the two side of bullet tongue pedestal (55) is crossed and is connected with pressing plate shaft (26), pressing plate shaft (26) two ends are connected with one end of pressing plate (24), be provided with pressing plate in the middle part of its other end and leave a blank (22), its center platen leaves a blank (22) sidewall along being provided with wedge button along (56), play tongue single-way switch structure (106)by oval wheel shaft (40), single-way switch (41), elliptic wheel (42), ratchet release recessed (43), pawl axis (44), check spring (45), ratchet (46), pawl slot (47), ratchet slot (48), play tongue pedestal (49), initiatively IOB (50), ratchet (51), drive spring (52) and sliding button (53) composition, playing tongue pedestal (49) is cuboid, left in it, the right side has pawl slot (47) and ratchet slot (48), ratchet slot (48) interior traveling has drive spring (52) and active IOB (50), drive spring (52) bottom is connected with bullet tongue pedestal (49) interior diapire, the other end connects initiatively IOB (50), it is connected with sliding button (53), ratchet (51) connects the edge of initiatively IOB (50), direction of travel is consistent with ratchet slot (48), pawl slot (47) inwall is connected with oval wheel shaft (40), axle is socketed with the elliptic wheel (42) and single-way switch (41) two parts that are connected as a single entity, ratchet (46) is positioned at the boundary of pawl slot (47) and ratchet slot (48), be connected by the inwall of pawl axis (44) with pawl slot (47), its one end is provided with ratchet release recessed (43), the other end is the ratchet (46) of wedge shape, check spring (45) one end vertically connects the medial wall of pawl slot (47), the other end is connected to ratchet (46).

2. a kind of bounce tongue lock according to claim 1 stops integral type radiotherapy body location hollow fixed mount, and it is characterized in that, pressing plate (24) rotates around pressing plate shaft (26).

3. a kind of bounce tongue lock according to claim 1 stops integral type radiotherapy body location hollow fixed mount, it is characterized in that, the film fourth of the twelve Earthly Branches (3) fixing tenon (20).

4. a kind of bounce tongue lock according to claim 1 stops integral type radiotherapy body location hollow fixed mount, it is characterized in that, elliptic wheel (42) and single-way switch (41) rotate round oval wheel shaft (40) simultaneously.

5. a kind of bounce tongue lock according to claim 1 stops integral type radiotherapy body location hollow fixed mount, and it is characterized in that, ratchet (46) rotates around pawl axis (44).

6. a kind of bounce tongue lock according to claim 1 stops integral type radiotherapy body location hollow fixed mount, it is characterized in that, check spring (45) keeps ratchet release recessed (43) to be close to elliptic wheel (42).