CN218699026U - Foldable rescue scissors - Google Patents

Abstract

The utility model relates to the technical field of rescue scissors, in particular to a foldable rescue scissors, which comprises a first shear blade and a second shear blade which are rotationally connected through a first rotating shaft, wherein the end part of the first shear blade is connected with a first handle, and the end part of the second shear blade is connected with a second handle; first cutting edge passes through the second pivot with first handle and rotates to be connected, the second cutting edge rotates through the third pivot with the second handle to be connected, be equipped with first joint portion on first handle, the fourth pivot has been installed in the activity in first joint portion, be equipped with second joint portion on the second handle, be equipped with the shaft hole in the second joint portion, when first joint portion and second joint portion joint, the fourth pivot is pegged graft with the shaft hole, first pivot, the second pivot, the third pivot, fourth pivot and first cutting edge, the second cutting edge, first handle, form the link gear between the second handle. The utility model discloses an overcome current rescue and cut folding accomodating and open comparatively complicated loaded down with trivial details problem, provide a rescue and cut, can be convenient for fold accomodating and open.

Description

Foldable rescue scissors

Technical Field

The utility model relates to a technical field is cut in the rescue, more specifically relates to a collapsible rescue is cut.

Background

The portable tool scissors and the rescue tool are various in varieties, fixed in function, large in size, inconvenient to carry and carry out operation, even if some of the portable tool scissors and the rescue tool are folded and stored, the opening and storage operations are complex, and inconvenience is brought to use.

The prior patent discloses a collapsible multi-functional scissors that conveniently carries, including blade one, it is connected with the shearing pivot to rotate on one side outer wall of blade one, and rotate through the shearing pivot on one side outer wall of blade one and be connected with blade two, blade one side outer wall is close to one end department and rotates and be connected with folding pivot one, and the one end department of blade one rotates through folding pivot and is connected with handle of a knife one, handle one has been cup jointed to the outside of handle of a knife one, and it has the tooth's socket that is the equidistance and distributes to open on one side outer wall of blade one, one side outer wall of blade two is close to one end department and rotates and is connected with handle of a knife two, and handle two has been cup jointed to the outside of handle of a knife two, the outside of folding pivot one rotates through torsion spring and is connected with the paratrooper bush hook sword. The blade is rotatably connected with the handle to realize a folding function, and the handle and the blade are easy to rotate in the use process of the scissors to influence the use function because the rotating shaft is not limited or is limited in a single direction; the rotating shaft of some scissors is limited in rotation by additionally arranging a clamping position between the blade and the handle, but the problem of inconvenience in removing the clamping is also caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rescue of being convenient for fold accomodate and opening is cut for overcoming current rescue and fold accomodate and open comparatively complicated loaded down with trivial details problem.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

a pair of foldable rescue scissors comprises a first shear blade and a second shear blade which are mutually rotatably connected through a first rotating shaft, wherein the end part of the first shear blade is connected with a first handle, and the end part of the second shear blade is connected with a second handle; the first cutting edge is connected with the first handle through a second rotating shaft in a rotating mode, the second cutting edge is connected with the second handle through a third rotating shaft in a rotating mode, a first clamping portion is arranged on the first handle, a fourth rotating shaft is movably arranged on the first clamping portion, a second clamping portion is arranged on the second handle, a shaft hole is formed in the second clamping portion, when the first clamping portion is clamped with the second clamping portion, the fourth rotating shaft is connected with the shaft hole in an inserting mode, and a linkage mechanism is formed among the first rotating shaft, the second rotating shaft, the third rotating shaft, the fourth rotating shaft, the first cutting edge, the second cutting edge, the first handle and the second handle.

According to the scheme, the first clamping portion and the second clamping portion are clamped, the fourth rotating shaft is inserted into the shaft hole, the first handle and the second handle are operated, the first shearing blade and the second shearing blade are driven to open and close through the linkage mechanism, the normal shearing function of the rescue scissors is achieved, after the fourth rotating shaft is inserted into the shaft hole, the rotating angle of the handle can be limited, the operation on the handle can be synchronously transmitted to the shearing blades, and meanwhile, the phenomenon that the rescue scissors are folded accidentally to affect normal operation in the operation process can be avoided; through the movable connection of the fourth rotating shaft and the first clamping part, the fourth rotating shaft can be conveniently inserted into the shaft hole of the second clamping part and can also be conveniently separated from the shaft hole, so that the clamping of the first clamping part and the second clamping part can be locked or released, and the operation is simple, time and labor are saved, and the operation is very convenient; when the rescue scissors are required to be stored, the clamping between the first clamping portion and the second clamping portion is removed, the fourth rotating shaft is separated from the shaft hole, the first handle is rotated relative to the second rotating shaft, the second handle is rotated relative to the third rotating shaft, the first handle is drawn close to the second cutting edge, the second handle is drawn close to the first cutting edge, the folding function of the rescue scissors is achieved, the size of the rescue scissors is greatly reduced, and the rescue scissors are convenient to store, transport and carry.

Further, first joint portion is the arch, the fourth pivot cup joints with first joint portion activity, second joint portion is the recess, the shaft hole runs through second joint portion and sets up. The arch is mutually supported with the recess, realizes the joint of first joint portion and second joint portion, and the fourth pivot that utilizes the activity to cup joint is for first joint portion round trip movement to after first joint portion inserts second joint portion, make the fourth pivot insert in the shaft hole, in order to form spacingly, and then play the locking effect behind first joint portion and the joint of second joint portion, avoid the first joint portion after the joint to break away from with second joint portion at will.

Furthermore, the fourth rotating shaft is of an elastic telescopic structure. Elastic stretching structure's fourth pivot possesses the flexible function of activity, can be for first joint portion round trip movement, through pressing the fourth pivot, when making first joint portion and second joint portion joint, first joint portion can go into smoothly in the second joint portion, after both joints, under the effect of elastic recovery power, fourth pivot reconversion, and then can insert in the shaft hole, form spacingly. Of course, the fourth rotating shaft may also adopt other structures to realize that the fourth rotating shaft is in movable sleeve joint with the first clamping portion, for example, a form of matching a sliding rod with a sliding groove is adopted, a fastener is additionally arranged, and the position of the sliding rod is locked after the sliding rod slides relative to the sliding groove, so as to realize locking of the first clamping portion and the second clamping portion.

Furthermore, the fourth rotating shaft comprises a first shaft sleeve, a second shaft sleeve and a spring, wherein the first shaft sleeve and the second shaft sleeve are both single-end openings, the spring is arranged in the first shaft sleeve and the second shaft sleeve, two ends of the spring are respectively abutted against the end part of the first shaft sleeve and the end part of the second shaft sleeve, the first shaft sleeve and the second shaft sleeve are both arranged in the first clamping part and are in sliding connection with the first clamping part, and the first shaft sleeve is further inserted into the second shaft sleeve. First axle sleeve and second axle sleeve are hollow structure, and all only have an open end, the open end of first axle sleeve and second axle sleeve sets up in opposite directions, the spring is installed in the hollow structure of first axle sleeve and second axle sleeve inside, elastic action through the spring, make first axle sleeve and second axle sleeve slide for first joint portion towards the direction that deviates from each other, when application of force in first axle sleeve and second axle sleeve, the spring receives the extrusion compression, first axle sleeve just pegs graft towards the direction that is close to each other with the second axle sleeve, and then make the fourth pivot realize the round trip movement for first joint portion.

Further, the shaft hole includes first shaft hole and the second shaft hole of coaxial setting be equipped with first unblock shell fragment and the second unblock shell fragment that is used for covering first shaft hole and second shaft hole on the second joint portion respectively, first unblock shell fragment with second unblock shell fragment rotates with the both ends of third shaft respectively and is connected, is equipped with the first bump that can insert first shaft hole on first unblock shell fragment, is equipped with on second unblock shell fragment to insert second shaft hole second bump. The first unlocking elastic sheet and the second unlocking elastic sheet can conveniently compress the fourth rotating shaft to enable the fourth rotating shaft to be separated from the shaft hole, and then the clamping of the first clamping portion and the second clamping portion is conveniently released. Specifically, through pressing two unblock shell fragments, make the first bump of first unblock shell fragment and the second bump of second unblock shell fragment form the extrusion to fourth pivot both ends, and then make the fourth pivot shorten and withdraw from first shaft hole and second shaft hole, rotate first handle or second handle towards the direction that deviates from each other this moment again, can make first joint portion break away from in the second joint portion, realize removing of joint.

Furthermore, a guide supporting structure matched with the shape of the protrusion is arranged in the second clamping portion. The direction bearing structure can be convenient for first joint portion and the contact back of second joint portion, the in-process of second joint portion is inserted in first joint portion, make the fourth pivot move the position in shaft hole smoothly, and then realize the grafting counterpoint in fourth pivot and shaft hole, and at first joint portion and the joint of second joint portion, the fourth pivot is inserted the shaft hole and is gone up the shaft hole under with, be close to each other when first handle and second handle, when making first cutting edge and second cutting edge cut, the direction bearing structure still can share the effort that comes from the handle that the fourth pivot received.

Furthermore, the first handle comprises a first connecting sleeve and a first handheld part, the first connecting sleeve is respectively connected with the first handheld part and the first cutting edge, and the first clamping part is also arranged on the first connecting sleeve; the second handle comprises a second connecting sleeve and a second holding part, the second connecting sleeve is respectively connected with the second holding part and the second cutting edge, and the second clamping part is also arranged on the second connecting sleeve. The first handheld part and the second handheld part are operation parts, the first shearing blade and the second shearing blade can be opened and closed by shifting the first handheld part and the second handheld part to realize a shearing function, and the first connecting sleeve is used for connecting the first shearing blade and the first handheld part; the second connecting sleeve is used for connecting the second shearing blade with the second handheld part, and the first connecting sleeve is provided with the first clamping part, and the second connecting sleeve is provided with the second clamping part, so that the first handle and the second handle can be clamped conveniently.

The first connecting sleeve is arranged on the first handle, and the first handle is arranged on the second handle; the second limiting flange is arranged on the side part of the second connecting sleeve or the side part of the second handheld part and is positioned close to the first handle. First spacing flange and the spacing flange of second can be cut at the rescue and be in fold condition under, form the guard action to the rescue is cut, and as the wall that blocks of first cutting edge and second cutting edge, avoid the mistake to touch first cutting edge or second cutting edge and cause personnel's injury. The first limiting flange and the second limiting flange are arranged in opposite directions, the first limiting flange is located on the outer side of the first handle, the second limiting flange is located on the outer side of the second handle, and the first shearing edge and the second shearing edge are located between the first limiting flange and the second limiting flange to form a protection effect on the first shearing edge and the second shearing edge.

Further, when the rescue scissors are in the folded state, the projection parts of the first handheld part and the second handheld part are overlapped, and the end part, far away from the first cutting edge, of the first handheld part protrudes out of the end part, far away from the second cutting edge, of the second handheld part. The first handheld portion and the second handheld portion are of asymmetric structures, the size of one handheld portion is slightly larger, the size of the other handheld portion is slightly smaller, the rescue scissors can be unfolded conveniently through the large-size handheld portion when the rescue scissors are folded, and the first handheld portion and the second handheld portion of the symmetric structures can cause partial interference in the unfolding process, so that the first handheld portion and the second handheld portion are not convenient to unfold.

Furthermore, a first through hole is formed in the first handheld portion, a second through hole is formed in the second handheld portion, and the first through hole is smaller than the second through hole. The first through hole and the second through hole are arranged, so that a hand can extend into the first handheld portion and the second handheld portion when the rescue scissors are operated conveniently, and the convenience of operation is improved.

Further, the end part of the first cutting edge or the second cutting edge is of a flat head structure. One of the first shearing edge or the second shearing edge can be set into a flat head structure, the other shearing edge can be set into a pointed end structure, the shearing edges of the flat head structure can avoid secondary damage in the rescue process, and the shearing edges of the pointed end structure can be convenient for cutting.

The rescue scissors of the utility model can facilitate the shearing operation of the rescue scissors and achieve the effect of labor saving to a certain extent by arranging the linkage mechanism, and can limit the rescue scissors in the unfolding state by utilizing the linkage mechanism to prevent the first handle and the second handle from being folded accidentally in the operation process; the elastic telescopic structure of the fourth rotating shaft is utilized, the first clamping portion and the second clamping portion are conveniently clamped and locked or unlocked, and then a linkage mechanism or a decomposition linkage mechanism is formed, so that the rescue scissors can be conveniently switched between an unfolded state and a foldable state, and time and labor are saved.

Drawings

Fig. 1 is a structural diagram of the foldable rescue scissors of the utility model in a folded state.

Fig. 2 is a structural diagram of the first direction of the foldable rescue scissors in the using state.

Fig. 3 is a structural diagram of the second direction of the foldable rescue scissors in the using state.

Fig. 4 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A in fig. 3.

Fig. 5 is a partially enlarged view of fig. 3 at B.

Fig. 6 is a structural diagram of the first direction of the foldable rescue scissors of the present invention when folded.

Fig. 7 is a structural diagram of the second direction of the foldable rescue scissors of the present invention when folded.

Fig. 8 is a cross-sectional view C-C of fig. 7.

Fig. 9 is an exploded view of the first handle of the present invention.

Fig. 10 is an exploded view of the second handle of the present invention.

Wherein the graphical symbols are as follows:

1. a first shear blade; 2. a second shear blade; 3. a first handle; 31. a first clamping part; 32. a first connecting sleeve; 33. a first hand-held section; 34. a first limit flange; 4. a second handle; 41. a second clamping part; 411. a shaft hole; 4111. a first shaft hole; 4112. a second shaft hole; 412. a first unlocking spring sheet; 413. a guide support structure; 414. a second unlocking spring sheet; 42. a second connecting sleeve; 43. a second hand-held section; 44. a second limit flange; 51. a first rotating shaft; 52. a second rotating shaft; 53. a third rotating shaft; 54. a fourth rotating shaft; 541. a first bushing; 542. a second shaft sleeve; 543. a spring.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limiting the present patent, and those skilled in the art will understand the specific meaning of the terms according to their specific circumstances.

The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:

example 1

As shown in fig. 1 to 10, a foldable rescue scissors is shown in embodiment 1, and includes a first cutting edge 1 and a second cutting edge 2 which are rotatably connected with each other through a first rotating shaft 51, wherein a first handle 3 is connected to an end of the first cutting edge 1, and a second handle 4 is connected to an end of the second cutting edge 2; specifically, the first cutting edge 1 is rotatably connected with the first handle 3 through the second rotating shaft 52, and the first handle 3 can rotate relative to the first rotating shaft 51 to realize the unfolding and folding of the first handle 3; the second shear blade 2 is rotatably connected with the second handle 4 through a third rotating shaft 53, and the second handle 4 can rotate relative to the second shear blade 2 to realize the unfolding and folding of the second handle 4; be equipped with first joint portion 31 on first handle 3, fourth pivot 54 has been installed in the activity on first joint portion 31, be equipped with second joint portion 41 on second handle 4, be equipped with shaft hole 411 on the second joint portion 41, when first joint portion 31 and second joint portion 41 joint, fourth pivot 54 pegs graft with shaft hole 411, fourth pivot 54 is pegged graft with shaft hole 411 and is locked the joint of first joint portion 31 and second joint portion 41 after pegging graft with shaft hole 411, avoid first joint portion 31 and second joint portion 41 to break away from, at this moment, first pivot 51, second pivot 52, third pivot 53, fourth pivot 54 and first cutting edge 1, second cutting edge 2, form the link gear between first handle 3, the second handle 4. Through operation first handle 3 and second handle 4, can transmit power to link gear, and then drive first cutting edge 1 and the action of opening and shutting of second cutting edge 2, realize the shearing function. And when needs accomodate the rescue scissors, can make fourth pivot 54 break away from shaft hole 411, then operate first handle 3 or second handle 4 and make both keep away from each other, and then make first joint portion 31 and second joint portion 41 break away from, at this moment, the link gear is decomposed, because there is not link gear's activity restriction, first handle 3 can rotate second pivot 52 relatively, make first handle 3 draw close towards second cutting edge 2 direction, second handle 4 can rotate third pivot 53 relatively, make second handle 4 draw close towards the direction of first cutting edge 1, finally realize the folding of rescue scissors. Preferably, the first clamping portion 31 is disposed at a position of the first handle 3 close to the second rotating shaft 52, the first clamping portion 31 is a protrusion, optionally, the protrusion is an arc-shaped structure, the fourth rotating shaft 54 is disposed in the middle of the protrusion, and the fourth rotating shaft 54 is movably sleeved with the first clamping portion 31; second joint portion 41 sets up in the position that second handle 4 is close to third pivot 53, sets up in opposite directions with first joint portion 31, and second joint portion 41 is the recess, corresponds with bellied shape, and the recess is the arc recess, and the recess can hold the arch with protruding joint, and shaft hole 411 sets up at the recess middle part to run through second joint portion 41 and set up. When the first clamping portion 31 and the second clamping portion 41 are clamped, the fourth rotating shaft 54 can be retracted into the first clamping portion 31, and after the first clamping portion 31 and the second clamping portion 41 are clamped, the fourth rotating shaft 54 is ejected out, so that the fourth rotating shaft 54 is inserted into the shaft hole 411, and the first clamping portion 31 and the second clamping portion 41 are locked after being clamped; further, a guide support structure 413 matched with the shape of the protrusion is arranged in the second clamping portion 41. The guiding support structure 413 can be arc-shaped, and the guiding support structure 413 plays a guiding role on the one hand, so that when the first clamping portion 31 is clamped with the second clamping portion 41, the fourth rotating shaft 54 can smoothly reach the position of the shaft hole 411, and the fourth rotating shaft 54 is conveniently inserted into the shaft hole 411. On the other hand, the guiding and supporting structure 413 can also realize the function of supporting and sharing the acting force, after the first clamping portion is clamped with the second clamping portion, and the fourth rotating shaft is inserted into the upper shaft hole and the lower shaft hole, when the first handle and the second handle are close to each other, so that the first cutting edge and the second cutting edge are cut, the guiding and supporting structure can also share the acting force from the handle, which is received by the fourth rotating shaft.

As a modification of the present embodiment, the fourth rotating shaft 54 has an elastic telescopic structure. Specifically, the fourth rotating shaft 54 includes a first shaft sleeve 541, a second shaft sleeve 542, and a spring 543, where the first shaft sleeve 541, the second shaft sleeve 542, and the spring 543 are both single-ended and open, and two ends of the spring 543 are respectively abutted to an end of the first shaft sleeve 541 and an end of the second shaft sleeve 542, the first shaft sleeve 541 and the second shaft sleeve 542 are both installed in the first engaging portion 31 and slidably connected to the first engaging portion 31, and the first shaft sleeve 541 is further inserted into the second shaft sleeve 542. The spring 543 is compressed by applying force to the first shaft sleeve 541 and the second shaft sleeve 542, so that the end portions of the first shaft sleeve 541 and the second shaft sleeve 542 are flush with the end portion of the first clamping portion 31, and the first clamping portion 31 and the second clamping portion 41 are conveniently clamped; when the fourth rotating shaft 54 moves to the position of the shaft hole 411, the size of the first shaft sleeve 541 and the size of the second shaft sleeve 542 are matched with the shaft hole 411, under the action of the restoring force of the spring 543, the first shaft sleeve 541 and the second shaft sleeve 542 move to the two ends of the first clamping portion 31 respectively, and then protrude out of the two ends of the first clamping portion 31 to enter the shaft hole 411 to form a limit, so that the fourth rotating shaft 54 is inserted into the shaft hole 411, and the first clamping portion 31 and the second clamping portion 41 are locked. Further, shaft hole 411 includes first shaft hole 4111 and second shaft hole 4112 of coaxial setting, be equipped with first unblock shell fragment 412 and second unblock shell fragment 414 that are used for covering first shaft hole 4111 and second shaft hole 4112 on second joint portion 41 respectively, first unblock shell fragment 412 and second unblock shell fragment 414 rotate with the both ends of third pivot 53 respectively and are connected, be equipped with the first bump that can insert first shaft hole 4111 on first unblock shell fragment 412, be equipped with the second bump that can insert second shaft hole 4112 on second unblock shell fragment 414. The first unlocking elastic sheet 412 and the second unlocking elastic sheet 414 are used for unlocking, by pressing the first unlocking elastic sheet 412 and the second unlocking elastic sheet 414, a first salient point can be inserted into the first shaft hole 4111, a second salient point can be inserted into the second shaft hole 4112 to extrude the first shaft sleeve 541 and the second shaft sleeve 542, the spring 543 is stressed and compressed, by setting, the height of the first salient point is equal to the depth of the first shaft hole 4111 or slightly greater than the depth of the first shaft hole 4111, similarly, by setting, the height of the second salient point is opposite to the depth of the second shaft hole 4112 or slightly greater than the depth of the second shaft hole 4112, under the extrusion of the first salient point and the second salient point, the end portions of the first shaft sleeve 541 and the second shaft sleeve 542 are flush with the end portion of the first clamping portion 31 or lower than the end portion of the first clamping portion 31, and by operating the first handle 3 and the second handle 4, the first clamping portion 31 and the second handle 4 face away from each other directions, so that the first clamping portion 31 and the second clamping portion 41 are separated from each other, and the unlocking function is realized.

As a modified solution of this embodiment, the first handle 3 includes a first connecting sleeve 32 and a first holding portion 33, the first connecting sleeve 32 is connected to the first holding portion 33 and the first cutting edge 1, and the first clamping portion 31 is also installed on the first connecting sleeve 32; the second handle 4 comprises a second connecting sleeve 42 and a second holding portion 43, the second connecting sleeve 42 is respectively connected with the second holding portion 43 and the second cutting edge 2, and the second clamping portion 41 is also arranged on the second connecting sleeve 42. The handle further comprises a first limit rib 34 and a second limit rib 44, wherein the first limit rib 34 is positioned at the side part of the first handheld part 33 and close to the second handle 4; the second limit rib 44 is located at the side of the second connecting sleeve 42 and near the first handle 3. The first shaft hole 4111 and the second shaft hole 4112 are both disposed on the second connection sleeve 42, the first limiting rib 34 and the second limiting rib 44 are disposed opposite to each other, and in the unfolded state of the rescue scissors, the first limiting rib 34 is located at a position where the first handheld portion 33 is close to the second handheld portion 43, the second limiting rib 44 is located at a position where the second connection sleeve 42 is close to the first handheld portion 33, in the folded state of the rescue scissors, the first limiting rib 34 and the second limiting rib 44 are both located at outer sides of the first handle 3 and the second handle 4, and the first cutting edge 1 and the second cutting edge 2 are located in the middle to form a protective effect, and when the rescue scissors is changed from the unfolded state to the folded state or from the folded state to the unfolded state, the first handle 3 is rotated relative to the second rotation shaft 52 by applying force to the first limiting rib 34 and the second limiting rib 44, and the second handle 4 is rotated relative to the third rotation shaft 53, thereby facilitating folding or unfolding of the rescue scissors. The thickness of the first limit rib 34 and the second limit rib 44 is set, so that the first limit rib 34 partially protrudes out of the first handle 3, the second limit rib 44 partially protrudes out of the second handle 4, and the two protruding parts just can form a containing space for the first shear blade 1 and the second shear blade 2 after the handles are folded.

Example 2

This embodiment is a foldable rescue scissors embodiment 2, and is similar to embodiment 1, except that in the folded state of the rescue scissors, the first handhold portion 33 overlaps with the projection of the second handhold portion 43, and the end of the first handhold portion 33 far from the first cutting edge 1 protrudes the end of the second handhold portion 43 far from the second cutting edge 2. The first handle 3 and the second handle 4 can be in an asymmetric structure, one of the two handles is larger in size, the other handle is smaller in size, the rescue scissors can be easily unfolded by operating the non-overlapping part of the projections of the first handle 33 and the second handle 43 in the folding state of the rescue scissors, and the whole operation is very simple and easy to achieve at one time.

As a modified solution of this embodiment, a first through hole is provided in the first handheld portion 33, and a second through hole is provided in the second handheld portion 43, and the first through hole is smaller than the second through hole. The arrangement of the first through hole and the second through hole can facilitate the operation of the rescue scissors, and the hands can extend into the first handheld portion 33 and the second handheld portion 43, so that the convenience of operation is improved.

Example 3

The present embodiment is an embodiment 3 of foldable rescue scissors, and is similar to embodiment 1, except that the end of the first cutting edge 1 or the second cutting edge 2 is a flat head structure. One of the first shearing edge 1 or the second shearing edge 2 can be set into a flat head structure, the other shearing edge can be set into a pointed end structure, the shearing edges of the flat head structure can avoid secondary damage in the rescue process, and the shearing edges of the pointed end structure can facilitate cutting.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A pair of foldable rescue scissors comprises a first shear blade (1) and a second shear blade (2) which are rotatably connected through a first rotating shaft (51), wherein a first handle (3) is connected to the end of the first shear blade (1), and a second handle (4) is connected to the end of the second shear blade (2); the novel cutting tool is characterized in that a first cutting edge (1) is rotatably connected with a first handle (3) through a second rotating shaft (52), a second cutting edge (2) is rotatably connected with a second handle (4) through a third rotating shaft (53), a first clamping portion (31) is arranged on the first handle (3), a fourth rotating shaft (54) is movably arranged on the first clamping portion (31), a second clamping portion (41) is arranged on the second handle (4), a shaft hole (411) is arranged on the second clamping portion (41), when the first clamping portion (31) is clamped with the second clamping portion (41), the fourth rotating shaft (54) is spliced with the shaft hole (411), and a linkage mechanism is formed among the first rotating shaft (51), the second rotating shaft (52), the third rotating shaft (53), the fourth rotating shaft (54), the first cutting edge (1), the second cutting edge (2), the first handle (3) and the second handle (4).

2. The foldable rescue scissors according to claim 1, wherein the first engaging portion (31) is a protrusion, the fourth rotating shaft (54) is movably sleeved with the first engaging portion (31), the second engaging portion (41) is a groove, and the shaft hole (411) is disposed through the second engaging portion (41).

3. Foldable rescue scissors according to claim 2, characterised in that the fourth shaft (54) is of elastically telescopic construction.

4. The foldable rescue scissors according to claim 3, wherein the fourth rotating shaft (54) comprises a first shaft sleeve (541), a second shaft sleeve (542) and a spring (543), the first shaft sleeve (541) and the second shaft sleeve (542) are both single-end open, the spring (543) is installed in the first shaft sleeve (541) and the second shaft sleeve (542), two ends of the spring are respectively abutted against the end of the first shaft sleeve (541) and the end of the second shaft sleeve (542), the first shaft sleeve (541) and the second shaft sleeve (542) are both installed in the first clamping portion (31) and are slidably connected with the first clamping portion (31), and the first shaft sleeve (541) is further inserted into the second shaft sleeve (542).

5. The foldable rescue scissors according to any one of claims 2 to 4, wherein the shaft hole (411) comprises a first shaft hole (4111) and a second shaft hole (4112) which are coaxially arranged, the second clamping portion (41) is provided with a first unlocking elastic sheet (412) and a second unlocking elastic sheet (414) which are used for covering the first shaft hole (4111) and the second shaft hole (4112), the first unlocking elastic sheet (412) is provided with a first protruding point which can be inserted into the first shaft hole (4111), and the second unlocking elastic sheet (414) is provided with a second protruding point which can be inserted into the second shaft hole (4112).

6. Foldable rescue scissors according to claim 2, characterised in that inside the second snapping part (41) there is a guiding support structure (413) matching the shape of the protrusion.

7. Foldable rescue scissors according to claim 1, characterised in that the first handle (3) comprises a first connecting sleeve (32) and a first handgrip portion (33), the first connecting sleeve (32) being connected to the first handgrip portion (33) and to the first cutting edge (1), respectively, and a first snapping portion (31) being also mounted to the first connecting sleeve (32); the second handle (4) comprises a second connecting sleeve (42) and a second holding part (43), the second connecting sleeve (42) is respectively connected with the second holding part (43) and the second shear blade (2), and the second clamping part (41) is also arranged on the second connecting sleeve (42).

8. The foldable rescue scissors according to claim 7, further comprising a first limit stop (34) and a second limit stop (44), wherein the first limit stop (34) is provided at a side of the first connecting sleeve (32) or a side of the first holding portion (33), and the first limit stop (34) is located at a position close to the second handle (4); the second limiting rib (44) is arranged on the side of the second connecting sleeve (42) or the side of the second holding part (43), and the second limiting rib (44) is positioned close to the first handle (3).

9. Foldable rescue scissors according to claim 8, characterised in that in the folded state of the rescue scissors the first handgrip (33) overlaps the projection of the second handgrip (43) and the end of the first handgrip (33) remote from the first cutting edge (1) is arranged protruding beyond the end of the second handgrip (43) remote from the second cutting edge (2).

10. Foldable rescue scissors according to claim 1, characterised in that the first (1) or second (2) cutting edge ends in a flat head configuration.

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