CN110897675A - Connection structure of elastic band and lock tongue of tourniquet with lock catch structure - Google Patents
Connection structure of elastic band and lock tongue of tourniquet with lock catch structure Download PDFInfo
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- CN110897675A CN110897675A CN201911406171.3A CN201911406171A CN110897675A CN 110897675 A CN110897675 A CN 110897675A CN 201911406171 A CN201911406171 A CN 201911406171A CN 110897675 A CN110897675 A CN 110897675A
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- 230000002411 adverse Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/132—Tourniquets
- A61B17/1322—Tourniquets comprising a flexible encircling member
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Abstract
The invention relates to a connection structure of an elastic band and a lock tongue of a tourniquet with a lock catch structure. Its spring bolt is including stretching into the part and exposing the part, exposes the part and is equipped with the cavity that holds the elastic webbing, and this cavity terminal surface is equipped with the tip opening, and the downside is equipped with the lower part opening, only is equipped with a stationary blade in the cavity, the stationary blade be located the cavity and lean on to the lower part of spring bolt, one side on the upper portion of stationary blade orientation spring bolt is equipped with convex toper stand, the height of this toper stand adds the thickness of stationary blade, equals or slightly is less than the height of cavity, sets to the cusp at this stationary blade terminal surface, the stationary blade is located the tip opening part an organic whole of spring bolt and sets up to the. The connecting structure is only provided with the fixing plate in the cavity of the lock tongue, so that the structure is greatly simplified. Meanwhile, under the condition that the structure and the size of the lock tongue are completely unchanged, the space size capable of being accommodated is widened, and the range of the thickness specification of the elastic belt capable of being adapted to is wider.
Description
Technical Field
The invention relates to a connection structure of an elastic band and a lock tongue of a tourniquet with a lock catch structure.
Background
In the prior art, the tourniquet has various structural forms, and the tourniquet with a locking structure is one of the tourniquets. The "body part ligature device" disclosed in US2004127938a1 is a tourniquet with a locking structure. The tourniquet with the lock catch structure is provided with a lock body, a lock tongue and an elastic belt, one end of the elastic belt is connected with the lock tongue, the elastic belt penetrates through the lock body, the lock catch structure is arranged between the lock body and the lock tongue, and a one-way stopping structure is arranged between the lock body and the elastic belt. The bolt comprises an inserting part and an exposing part, the thickness of the exposing part is larger than that of the inserting part, on one hand, the inserting part is limited, and on the other hand, enough structural space is reserved for connection with the elastic belt.
Wherein, the exposed part of the bolt is provided with a cavity matched with the elastic belt, and the elastic belt extends into the cavity of the exposed part of the bolt and is connected with the exposed part of the bolt. Initially, the attachment structure was a screw to secure the elastic band to the exposed portion of the deadbolt. Thereafter, the connection structure is improved. The improved connecting structure is disclosed in US2004127938A1, and two mutually matched fixing pieces are adopted to clamp the elastic belt, wherein one fixing piece is provided with a convex conical upright post, and the other fixing piece is provided with a groove for accommodating the conical upright post. Thus, after the two fasteners clamp the elastic band, the protruding conical stud therein will pierce the elastic band made of fabric and enter the groove in the other fastener. The connected fixing parts and the elastic belt are plugged into the cavity of the lock tongue, and the two fixing parts are enabled to be tightly attached to two sides of the elastic belt by the inner wall of the cavity, so that the elastic belt and the lock tongue are connected.
However, in actual assembly, the tourniquet will often employ elastic bands of different thickness specifications as desired. When using a thicker elastic band, the size of the space that can be accommodated between two fixing elements that fit into the bolt cavity is sometimes less than the thickness of the elastic band. The thickness of the elastic band must be compressed forcibly during assembly, and the combination of the fixing piece and the elastic band is plugged into the cavity of the lock bolt by force, so that the assembly is labor-consuming, and the assembly efficiency is reduced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the connection structure of the elastic band and the lock tongue of the tourniquet, which can adapt to the elastic bands with various specifications and thicknesses, has a simple structure and is convenient to assemble.
The invention relates to a bolt, which comprises an extending part and an exposing part, wherein the exposing part is provided with a cavity for accommodating an elastic belt, one end of the cavity far away from the extending part is provided with an end opening, and the lower side of the bottom wall of the cavity is provided with a lower opening for accommodating the elastic belt.
The connecting structure is only provided with the fixing plate in the cavity of the lock tongue, so that the structure is greatly simplified. Meanwhile, under the condition that the structure and the size of the lock tongue are completely unchanged, the space size capable of being accommodated is widened, and the range of the thickness specification of the elastic belt capable of being adapted to is wider.
The invention further solves the technical scheme that the height of the teeth on the end face of the fixing piece is smaller than the thickness of the elastic belt.
Another object of the present invention is to provide a tourniquet using the above connection structure.
Drawings
The specific contents of the present invention will be further explained below with reference to the drawings and examples.
FIG. 1: schematic structural diagram of example 1.
FIG. 2: example 1 a schematic view of the construction of the anchor sheet.
FIG. 3: the structure of embodiment 2 is schematically shown.
FIG. 4: example 2 a schematic view of the construction of the anchor sheet.
FIG. 5: example 3 the structure of the anchor sheet is schematically shown as one.
FIG. 6: example 3 schematic view of anchor sheet structure two.
Detailed Description
Example 1: as shown in fig. 1 and 2, the bolt 1 of the present embodiment includes an extending portion 11 and an exposed portion 12, the exposed portion 12 is provided with a cavity 13 for accommodating the elastic band 2, the cavity 13 is provided with an end opening 14 at an end far from the extending portion 11, a lower opening 16 for accommodating the passage of the elastic band 1 is provided at a lower side of a bottom wall 15 of the cavity 13, only one fixing plate 3 is provided in the cavity 13, the fixing plate 3 is mounted at a lower portion of the cavity 13, an upper portion of the fixing plate 3 is provided with a protruding tapered pillar 31, a height of the tapered pillar 31 plus a thickness of the fixing plate 3 is equal to or slightly less than a height of the cavity 13, a tooth 32 is provided at an end of the fixing plate 3 facing the bottom wall 15 of the cavity, and a seal 33 matching with the end opening 14 is integrally provided at the end opening 14 of the fixing plate 3 located at the.
When the bolt is assembled, the end part of the elastic belt extends into the cavity of the bolt from the lower opening of the bolt and is pulled out from the end opening of the bolt. In the outside of spring bolt, press the tip of this elastic webbing from top to bottom on the toper stand of stationary blade one side up, then, put into the cavity of spring bolt by the tip opening of spring bolt with the elastic webbing and the stationary blade of preliminary connection. The height of the cavity is utilized to cause the elastic belt to be naturally pierced by the conical upright post on the fixing sheet, so that the elastic belt at the position is completely hooked by the conical upright post to realize connection. At this moment, by the lower part opening part pulling elastic webbing of spring bolt, the elastic webbing can drive the stationary blade and move to the cavity bottom of spring bolt, and in the time of pulling elastic webbing, the elastic webbing also can be stretched, after the elastic webbing was touch to the tip of stationary blade, continues hard again, and the tooth of this stationary blade tip can pierce through the elastic webbing and finally compresses tightly the diapire at the cavity with the elastic webbing. At the same time, the force will cause the anchor tab to swing within the cavity. Because the opening of the end part of the bolt is provided with the integrated seal matched with the opening of the end part, the swing range of the whole fixed sheet is very limited, after the fixed sheet swings to the limit position, the fixed sheet can deform under the action of the strong tensile force of the elastic belt, and the deformation finally enables the end part of the fixed sheet to tightly press the elastic belt on the bottom wall of the cavity of the bolt, so that the friction force between the elastic belt at the position and the bottom wall of the cavity of the bolt is very large, and the self-locking of the fixed sheet in the cavity of the bolt is realized. In addition, when the elastic belt is pulled through the lower opening of the bolt, the elastic belt between the conical upright post of the fixing piece and the teeth on the end surface of the fixing piece is stretched, the thickness of the elastic belt is reduced, after the pulling force of the lower opening of the bolt on the elastic belt is cancelled, the elastic belt below the teeth on the end surface of the fixing piece is restored to the original thickness, and therefore the thickness of the elastic belt above the teeth on the end surface of the fixing piece is reduced, and the thickness of the elastic belt below the teeth on the end surface of the fixing piece is increased. The thickness of the elastic band which is different from top to bottom strengthens the friction force between the elastic band and the bottom wall of the cavity of the lock tongue on the other hand, and further strengthens the self-locking of the fixing sheet.
Unlike the drawbacks of the prior art noted above, in the prior art, if the thickness of the elastic band is too thick, it is very laborious during the whole process of fitting the two fixing pieces together with the elastic band into the cavity; the invention is very easy in the whole process that the fixing sheet and the elastic band are arranged in the cavity, but the elastic band at the opening at the lower part of the lock tongue is pulled by force at the end of assembly.
In this embodiment, the self-locking of the fixing piece needs only to be slightly deformed. In both the prior art and the present invention, the anchor tabs are made of plastic material. Almost all plastic materials are allowed to deform to varying degrees. The effect of the invention can be further enhanced by selecting a suitable plastic material.
In the prior art, the two fixing pieces are basically used for clamping the elastic belt and then form friction with the inner wall of the cavity to realize fixation, so that the final result cannot be greatly influenced even if the positions of the two fixing pieces are vertically changed. In the embodiment, the fixing sheet is required to be positioned below the cavity, otherwise, the fixing sheet cannot realize self-locking.
Further, based on the above principle analysis, the tooth profile on the end face of the fixing piece should not be too deep. The teeth on the anchor tab end should allow the teeth to penetrate into the fabric of the elastic band and not through the elastic band, i.e., the height of the teeth on the anchor tab end should be less than the thickness of the elastic band. However, the applicant has not studied in depth whether the self-locking of the fixing plate is adversely affected if the teeth pass through the elastic band so that the end faces of the teeth of the fixing plate contact and rub against the bottom wall of the tongue.
Simultaneously, an important function can be realized to stationary blade and spring bolt cavity structure: the elastic belt is pulled by the lower opening of the lock tongue, the elastic belt can drive the fixing sheet to move to the bottom of the cavity of the lock tongue, and teeth at the end of the fixing sheet penetrate through the elastic belt and press the elastic belt on the bottom wall of the cavity. When the force of pulling the elastic belt by the lower opening of the lock tongue is larger, the force of pressing the end part of the fixed piece on the elastic belt is larger, so that the elastic belt is firmly hooked on the teeth at the end part of the fixed piece, and the teeth bear most of the pulling force of the elastic belt, thereby preventing the elastic belt from being disconnected with the lock tongue and being forcibly pulled out from the lower opening of the lock tongue during assembly or use.
Example 2: as shown in fig. 3 and 4, this embodiment includes all the technical features of embodiment 1, and in this embodiment, after the fixing piece 3 is inserted into the cavity 13 of the bolt 1, the gap between the fixing piece 3 and the inner wall of the cavity 13 is slightly smaller than the thickness of the elastic band 2, and in addition, a projection 34 with a barb-shaped cross section is provided at a position of the fixing piece 3 corresponding to the lower opening 16 of the cavity 13.
Thus, when the elastic band is assembled in the cavity of the bolt, the elastic band can be compressed in the thickness direction, so that the elastic band and the fixing piece press the inner wall of the cavity of the bolt and generate friction force. When the elastic band and the fixing piece are assembled into the cavity of the bolt, the pulling force for pulling the elastic band from the opening at the lower part of the bolt can overcome the friction force, so that the elastic band drives the fixing piece to smoothly enter the cavity of the bolt. During the process that the fixing sheet enters the cavity, the lug on the fixing sheet can slide on the inner wall of the cavity. When pulling the elastic band hard, make the tooth puncture elastic band of stationary blade tip and finally compress tightly the elastic band on the diapire of cavity, barb shape lug on the stationary blade can slide to the lower part opening of cavity and correspond the position to enter into this lower part opening in, the lug supports each other with the relative lateral wall of this lower part opening and leans on, makes the stationary blade location unable retreat. This results in the anchor tab being self-locking.
In this embodiment, the thickness of the fixing piece can also act on the self-locking of the fixing piece, in addition to the self-locking of the fixing piece formed by the cooperation of the barb-shaped projection on the fixing piece and the lower opening of the cavity. In this embodiment, the gap between the fixing piece and the inner wall of the cavity is slightly smaller than the thickness of the elastic band, so that the elastic band and the fixing piece press the inner wall of the cavity of the latch bolt and generate friction force. This frictional force will prevent the elastic band and anchor sheet from backing out in the cavity toward the end opening of the cavity. Meanwhile, if the elastic band and the fixing piece are retracted in the cavity, the reason is mostly because the tension of the elastic band at the lower opening of the cavity is weakened or lost, and the weakening or the loss of the tension can contract the elastic band tensioned in the cavity, increase the thickness of the elastic band in the cavity, increase the pressure formed by the elastic band and the fixing piece on the inner wall of the cavity of the latch tongue, and further hinder the movement of the elastic band and the fixing piece in the cavity. Thus, the elastic band and the fixing piece form a certain self-locking.
In the embodiment, the thickness of the fixing sheet has a self-locking effect on the fixing sheet, so that the upper position and the lower position of the fixing sheet and the elastic belt in the cavity of the bolt can be interchanged. That is, the fixing piece may be located below the cavity or may be located above the cavity. However, when the fixing plate is located above the cavity, the self-locking can be achieved only by the thickness of the fixing plate, but not by the cooperation of the barb-shaped projection on the fixing plate and the lower opening of the cavity, and the self-locking capability is weakened.
Example 3: as shown in fig. 5 and 6, the present embodiment has all the technical features of embodiment 2, and in addition, a small tapered column 35 is provided on the upper portion of the fixing piece 3 in a direction in which the tapered column 31 is offset to the teeth 32. The extending height of the small conical column 35 is lower than that of the conical upright column 31.
The arrangement of the small conical columns in the embodiment can be beneficial to attaching the elastic band to the fixing sheet more closely.
In the invention, only one fixing sheet is arranged in the cavity of the bolt, which means that only one fixing sheet is arranged in the cavity of the bolt except for the elastic belt, and meanwhile, the conical upright column, the tooth, the convex block and the small conical column which are arranged on the fixing sheet are integrally injection-molded with the fixing sheet or are integrally fixedly connected with the fixing sheet in other modes.
In the invention, the lower part and the lower part refer to the side direction facing the human body part after the tourniquet is bound on the human body part; the upper part and the upper part refer to the side direction of the part of the human body back to the human body after the tourniquet is bound on the human body.
Claims (8)
1. The utility model provides a take connection structure of elastic webbing and spring bolt of tourniquet of hasp structure, wherein the spring bolt is including stretching into the part and exposing the part, exposes the part and is equipped with the cavity that holds the elastic webbing, and this cavity is equipped with the tip opening keeping away from the one end of stretching into the part, and simultaneously, the downside in the diapire department of cavity is equipped with the lower part opening that holds elasticity and pass, its characterized in that: the cavity is internally provided with only one fixing plate, the fixing plate is arranged at the lower part of the cavity, the upper part of the fixing plate is provided with a convex conical upright post, the height of the conical upright post plus the thickness of the fixing plate is equal to or slightly less than the height of the cavity, one end of the fixing plate facing the bottom wall of the cavity is provided with teeth, and meanwhile, the end opening of the fixing plate positioned on the lock tongue is integrally provided with a seal matched with the end opening.
2. The structure for connecting an elastic band and a lock tongue of a tourniquet with a buckle structure according to claim 1, wherein: the height of the teeth on the end face of the fixing piece is smaller than the thickness of the elastic belt.
3. The structure for connecting an elastic band and a lock tongue of a tourniquet with a buckle structure according to claim 1, wherein: after the fixing sheet extends into the cavity of the lock tongue, the gap between the fixing sheet and the inner wall of the cavity is slightly smaller than the thickness of the elastic belt.
4. The structure for connecting an elastic band and a lock tongue of a tourniquet with a buckle structure according to claim 1, wherein: a projection is arranged at the position of the fixed sheet corresponding to the lower opening of the cavity.
5. The structure for connecting an elastic band and a lock tongue of a tourniquet with a buckle structure according to claim 4, wherein: the cross section of the lug is in a barb shape.
6. The structure for connecting an elastic band and a lock tongue of a tourniquet with a buckle structure according to claim 1, wherein: a small conical column is arranged on the upper part of the fixing sheet and in the direction of one side of the conical upright column deviated to the teeth.
7. The structure for connecting an elastic band and a lock tongue of a tourniquet with a buckle structure according to claim 6, wherein: the extending height of the small conical column is lower than that of the conical upright column.
8. The utility model provides a tourniquet of area hasp structure which characterized in that: the connection structure of the elastic band and the bolt of the tourniquet with the locking structure of any claim 1 to 7.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019102050718 | 2019-03-18 | ||
| CN201910205071 | 2019-03-18 |
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| CN110897675A true CN110897675A (en) | 2020-03-24 |
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| CN201911406171.3A Pending CN110897675A (en) | 2019-03-18 | 2019-12-31 | Connection structure of elastic band and lock tongue of tourniquet with lock catch structure |
| CN201922447889.9U Active CN212037654U (en) | 2019-03-18 | 2019-12-31 | Connection structure of elastic band and lock tongue of tourniquet with lock catch structure |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922447889.9U Active CN212037654U (en) | 2019-03-18 | 2019-12-31 | Connection structure of elastic band and lock tongue of tourniquet with lock catch structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220175393A1 (en) * | 2020-12-03 | 2022-06-09 | National Cheng Kung University | Tourniquet device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110897675A (en) * | 2019-03-18 | 2020-03-24 | 温州益宏医疗科技有限公司 | Connection structure of elastic band and lock tongue of tourniquet with lock catch structure |
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| GB238892A (en) * | 1924-08-21 | 1926-11-22 | William Edward Hatheway | Improvements in buckles for suspenders and like articles |
| CN1390752A (en) * | 2001-05-15 | 2003-01-15 | 潘都依特有限公司 | Low through strength electric cable ties with fasteners |
| US20040127938A1 (en) * | 2001-12-15 | 2004-07-01 | Claudia Kirchner | Ligature device for body parts |
| US20060025807A1 (en) * | 2004-07-29 | 2006-02-02 | Mark Licata | One hand tourniquet with locking mechanism |
| TWM313439U (en) * | 2006-08-10 | 2007-06-11 | Chao-Nan Chang | Improved structure of fastener for shoelaces |
| CN201642192U (en) * | 2010-04-30 | 2010-11-24 | 温州越泰对外贸易有限公司 | Snap-fastener tourniquet |
| CN101904584A (en) * | 2010-08-24 | 2010-12-08 | 相虎生 | Web belt of military combat uniform |
| CN201790857U (en) * | 2010-07-14 | 2011-04-13 | 邓琼萱 | Broad fastener type vein pressing band |
| US20120102631A1 (en) * | 2009-07-03 | 2012-05-03 | Bom Kyu Lee | Buckle device with elastic band and article including the same |
| CN204930560U (en) * | 2015-09-07 | 2016-01-06 | 际华三五二二装具饰品有限公司 | A kind of Novel toothed board fixing structure of belt buckle |
| CN205624936U (en) * | 2015-12-28 | 2016-10-12 | 宁波优和办公文具有限公司 | Buckle |
| CN207784477U (en) * | 2017-12-20 | 2018-08-31 | 杭州浮生信息科技有限公司 | A kind of cord stopper |
| CN212037654U (en) * | 2019-03-18 | 2020-12-01 | 温州益宏医疗科技有限公司 | Connection structure of elastic band and lock tongue of tourniquet with lock catch structure |
-
2019
- 2019-12-31 CN CN201911406171.3A patent/CN110897675A/en active Pending
- 2019-12-31 CN CN201922447889.9U patent/CN212037654U/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB238892A (en) * | 1924-08-21 | 1926-11-22 | William Edward Hatheway | Improvements in buckles for suspenders and like articles |
| CN1390752A (en) * | 2001-05-15 | 2003-01-15 | 潘都依特有限公司 | Low through strength electric cable ties with fasteners |
| US20040127938A1 (en) * | 2001-12-15 | 2004-07-01 | Claudia Kirchner | Ligature device for body parts |
| US20060025807A1 (en) * | 2004-07-29 | 2006-02-02 | Mark Licata | One hand tourniquet with locking mechanism |
| TWM313439U (en) * | 2006-08-10 | 2007-06-11 | Chao-Nan Chang | Improved structure of fastener for shoelaces |
| US20120102631A1 (en) * | 2009-07-03 | 2012-05-03 | Bom Kyu Lee | Buckle device with elastic band and article including the same |
| CN201642192U (en) * | 2010-04-30 | 2010-11-24 | 温州越泰对外贸易有限公司 | Snap-fastener tourniquet |
| CN201790857U (en) * | 2010-07-14 | 2011-04-13 | 邓琼萱 | Broad fastener type vein pressing band |
| CN101904584A (en) * | 2010-08-24 | 2010-12-08 | 相虎生 | Web belt of military combat uniform |
| CN204930560U (en) * | 2015-09-07 | 2016-01-06 | 际华三五二二装具饰品有限公司 | A kind of Novel toothed board fixing structure of belt buckle |
| CN205624936U (en) * | 2015-12-28 | 2016-10-12 | 宁波优和办公文具有限公司 | Buckle |
| CN207784477U (en) * | 2017-12-20 | 2018-08-31 | 杭州浮生信息科技有限公司 | A kind of cord stopper |
| CN212037654U (en) * | 2019-03-18 | 2020-12-01 | 温州益宏医疗科技有限公司 | Connection structure of elastic band and lock tongue of tourniquet with lock catch structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220175393A1 (en) * | 2020-12-03 | 2022-06-09 | National Cheng Kung University | Tourniquet device |
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| Publication number | Publication date |
|---|---|
| CN212037654U (en) | 2020-12-01 |
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