Spinning type tourniquet capable of avoiding compression springback

Abstract

The invention relates to the technical field of first-aid devices, in particular to a spinning type tourniquet capable of avoiding compression springback, which comprises a braid, a buckle, a magic tape and a rotating rod, one end of the braid is fixedly connected with a bayonet, a tourniquet body is wound around the bayonet, and the tail end of the braid is fixedly connected with the tourniquet body through the magic tape; the spinning type tourniquet further comprises a shell and a compression plate arranged in the base, the belt body of the braid penetrates through the shell below the flexible compression plate, the compression plate is in an arc shape in the length direction of the braid, the rotating rod and the shell are screwed through threads, and the rotating rod is connected with the shell in a threaded mode. And the bottom of the rotating rod can be in contact with the outer arc surface of the compression plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of first-aid devices, in particular to a rotary pressure tourniquet capable of avoiding elastic rebound. BACKGROUND

[0002] On the battlefield, the rotary pressure tourniquet can be used for first-aid of wounded people with uncontrolled limb bleeding, has the characteristics of convenient use and easy carrying, can be operated by one hand, is simple and practical, and has a good effect on emergency hemostasis of arteries and veins.

[0003] However, the existing rotary pressure tourniquet is prone to loosening of the compression position due to elastic rebound during use, which affects the hemostasis effect. At the same time, once tightened, the wounded person cannot adjust the compression position of the tourniquet by himself. Therefore, it does not meet the existing needs, and for this purpose, we propose a rotary pressure tourniquet capable of avoiding elastic rebound. SUMMARY

[0004] The purpose of the present application is to provide a rotary pressure tourniquet capable of avoiding elastic rebound and improving the reliability of the rotary pressure tourniquet; at the same time, when the first tightening position is not suitable, the wounded person can also conveniently adjust the compression position of the tourniquet by himself. The following technical solutions are used:

[0005] A rotary pressure tourniquet capable of avoiding elastic rebound, comprising a woven belt, a buckle, a magic tape and a rotary rod, one end of the woven belt is fixedly connected with the buckle, the belt body is wound through the buckle, and the magic tape is fixedly connected with the belt body at the end of the woven belt;

[0006] The rotary pressure tourniquet further comprises a shell and a compression plate arranged in the base, the belt body of the woven belt passes through the shell below the flexible compression plate, the compression plate forms an arc shape in the length direction of the woven belt, the rotary rod is threadedly combined with the shell, and the bottom of the rotary rod can be in contact with the outer arc surface of the compression plate.

[0007] As a preferred embodiment, the shell has a similar arc shape as the compression plate.

[0008] As a preferred embodiment, the curvature of the compression plate is 50-70°.

[0009] As a preferred embodiment, in the length direction of the woven belt, the two ends of the shell respectively extend inward to form a pair of hooks, the surface of the compression plate is provided with a pair of clamping grooves, and the hook heads of the hooks are always clamped into the clamping grooves.

[0010] As a preferred implementation form, the shell is provided with a fixing table, the fixing table has an internally vertically arranged internally threaded through hole, a sleeve is threadedly fitted in the internally threaded through hole, an axially arranged sliding groove is formed in the inner wall of the sleeve, the rotating rod has a protrusion on the rod body, the rotating rod is inserted into the sleeve, and the protrusion is located in the sliding groove, and the bottom of the sleeve can contact the outer arc surface of the pressing plate.

[0011] As a preferred implementation form, the shell is provided with a limiting unit for limiting rotation of the rotating rod.

[0012] As a preferred implementation form, a pair of rebound prevention auxiliary devices are arranged on both sides of the fixing table along the length direction of the belt, and the rebound prevention auxiliary device at least comprises a set of elastic compression assemblies, the elastic compression assembly comprises a guide sleeve fixedly installed on the top wall of the shell, a compression spring, a push rod, and a push plate fixedly connected with the free end of the push rod, the compression spring and the push rod are arranged in the guide sleeve, the compression spring provides elastic force away from the guide sleeve to the push plate through the push rod, and the bottom surface of the push plate abuts against the surface of the pressing plate.

[0013] As a preferred implementation form, the rebound prevention auxiliary device comprises a pair of elastic compression assemblies, a retractable hook is fixedly arranged on the top wall of the shell between the pair of elastic compression assemblies, part of the plate body of the pressing plate is bent to form a hanging ear and is hooked with the retractable hook, the hook body of the retractable hook is fixedly connected with a rebound stopping plate, and the bottom surface of the rebound stopping plate abuts against the surface of the push plate.

[0014] As a preferred implementation form, the bottom of the shell is provided with a binding belt, and the belt body of the belt passes through the binding belt. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings accompanying the specification of the present application serve to provide further explanation of the present application, the schematic embodiments of the present application and the description thereof serve to explain the present application, and do not constitute improper limitation on the present application.

[0016] Figure 1 It is a structural schematic diagram of the whole application;

[0017] Figure 2 It is a partial structural schematic diagram of part A in the present application; Figure 1

[0018] Figure 3 It is a sectional front view of the whole application;

[0019] Figure 4 It is a sectional side view of the whole application;​

[0020] Figure 5 For the invention Figure 3 The local structure schematic diagram of part B in the invention;

[0021] Figure 6 For the invention Figure 5 The local structure schematic diagram of part C in the invention;

[0022] Figure 7 The local structure schematic diagram of the bump position in the invention.

[0023] In the above drawings: 1, the tape; 2, the buckle; 3, the magic tape; 4, the shell; 5, the fixed table; 6, the blocking rod; 8, the rotating rod; 9, the bandage; 11, the sleeve; 13, the sliding groove; 15, the compression plate; 16, the bump; 17, the hook; 18, the card slot; 20, the retractable hook; 21, the stop plate; 22, the guide sleeve; 24, the compression spring; 25, the push rod; 26, the push plate. DETAILED DESCRIPTION

[0024] The technical solutions in the application will be described clearly and completely below. Obviously, the described embodiments are only some of the embodiments of the application, not all the embodiments. The following description of at least one exemplary embodiment is only illustrative, and is by no means intended to limit the application and its application or use in any way. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the application.

[0025] Embodiment: refer to Figures 1-7 The rotating pressure tourniquet shown in the figure includes the prior art tape 1, buckle 2, magic tape 3 and rotating rod 8. The buckle 2 is a plastic back strap adjusting buckle, one end of the tape 1 is fixed into a loop and arranged on the buckle 2, the belt body is wound through the buckle 2, and the magic tape 3 is pasted or sewn on the tape 1 at a suitable position to fix the end of the tape 1 to the belt body.

[0026] To solve the technical problems of the prior art rotating pressure tourniquet, such as compression rebound, inconvenient compression position adjustment, etc., the rotating pressure tourniquet provided in the embodiment further includes a shell 4 and a compression plate 15 arranged in the shell 4. The belt body of the tape 1 passes through the shell 4 below the flexible compression plate 15, the compression plate 15 forms an arc shape in the length direction of the tape 1, the rotating rod 8 is threadedly combined with the shell 4, and the bottom of the rotating rod 8 can contact the outer arc surface of the compression plate 15.

[0027] The housing 4 can be made of existing materials, such as plastic or metal. The housing 4 should have sufficient strength and rigidity to support the installation of the structural components. The pressure plate 15 is a metal sheet with a certain arc shape, such as a bow spring. However, in order to quickly and easily press down the pressure plate 15, and to ensure that the pressure plate 15 provides sufficient pressure, the thickness of the pressure plate 15 should be moderate, preferably 1.5-2.0 mm, and the arc of the pressure plate 15 should be 50-70°. In this embodiment, the pressure plate 15 is a stainless steel bow spring with a thickness of 1.75 mm and an arc of 60°.

[0028] With the above structure, the webbing 1 can be tightened at the appropriate position on the wound via the buckle 2 and the Velcro strap 3. Then, by rotating the rotating rod 8, the rotating rod 8 can move downwards, forcing the pressure plate 15, thereby achieving pressure on the wound. During this process, since the rotating rod 8 and the housing 4 are screwed together, the elastic restoring force of the pressure plate 15 is unlikely to cause the rotating rod 8 to rotate in the opposite direction, thus effectively preventing pressure rebound.

[0029] Meanwhile, unlike existing technologies where the rotating rod 8 achieves compression by tightening the webbing 1, in this embodiment, the webbing 1 passes through the housing 4. Therefore, even when the pressure plate 15 is pressing the webbing 1, the compression position can be finely adjusted by sliding the housing 4. Preferably, the bottom of the housing 4 is provided with a strap 9, through which the webbing 1 passes. Thus, the part in contact with the injured person's body is the flexible strap 9, which improves safety and comfort.

[0030] Preferably, the housing 4 has an arcuate shape similar to that of the pressure plate 15.

[0031] Preferably, along the length of the webbing 1, the two ends of the housing 4 extend inward to form a pair of hooks 17, and the surface of the pressure plate 15 is provided with a pair of slots 18, with the hook head of the hook 17 always engaged in the slot 18.

[0032] By cooperating with the clamping plate 17 and the slot 18, the two ends of the pressure plate 15 can be locked by the clamping plate 17, so as to prevent the two ends of the flexible pressure plate 15 from rebounding due to its flexibility when the person wears the device and moves or shakes, thus affecting its function of compression and hemostasis. The two ends of the flexible pressure plate 15 can be locked and limited by the arc-shaped buckle 18 to prevent the two ends of the pressure plate 15 from curling outward or rebounding.

[0033] The threaded engagement between the housing 4 and the rotating rod 8 can be in the form of existing technology, such as the rotating rod 8 having an external thread. Meanwhile, a fixed platform 5 is integrally formed on the housing 4, and the interior of the fixed platform 5 has a vertically arranged internal threaded through hole. The rotating rod 8 can move up and down relative to the fixed platform 5 by engaging with the internal threaded through hole.

[0034] In some other preferred embodiments, a fixing platform 5 is provided on the housing 4. The fixing platform 5 has a vertically arranged internally threaded through hole. A sleeve 11 is threadedly fitted into the internally threaded through hole. In other words, the outer wall of the sleeve 11 has an external thread that mates with the internal thread. The sleeve 11 is disposed in the internally threaded through hole and threadedly fitted therewith. A sliding groove 13 is formed axially on the inner wall of the sleeve 11. A protrusion 16 is integrally formed on the body of the rotating rod 8. The rotating rod 8 is inserted into the sleeve 11, and the protrusion 16 is located within the sliding groove 13.

[0035] Through the cooperation of the protrusion 16 and the sliding groove 13, the rotating rod 8 can move axially along the sleeve 11 and also drive the sleeve 11 to rise and fall through rotation. In this design, the rotating rod 8 abuts against the outer arc surface of the pressure plate 15 via the sleeve 11. This design enables the rotating rod 8 to rise and fall.

[0036] Based on this technical solution, a limiting unit 6 is provided on the housing 4 to limit the rotation of the rotating rod 8.

[0037] Specifically, a pair of spaced-apart stop bars are fixedly installed on both sides of the housing 4 using existing technologies such as bonding, welding, and integral molding. The rotating handle of the rotating rod 8 can achieve lifting and lowering actions through this gap.

[0038] With the above structure, when the rotating rod 8 is pulled outward, so that the rotating handle of the rotating rod 8 is higher than the limiting unit 6, the limiting unit 6 does not affect the rotation of the rotating rod 8. The pressing or releasing of the pressing plate 15 can be achieved by rotating the rotating rod 8. When the rotating rod 8 is pressed inward, so that the rotating handle of the rotating rod 8 is lower than the limiting unit 6, the limiting unit 6 can restrict the rotation of the rotating rod 8. This can prevent the elastic restoring force of the pressing plate 15 from causing the rotating rod 8 to rotate in the opposite direction or tend to rotate, effectively preventing the pressing rebound and improving the reliability of the pressing.

[0039] Additionally, along the length of the webbing 1, a pair of anti-rebound accessories are provided on both sides of the fixing platform 5. The anti-rebound accessories include at least one set of elastic clamping components. These components include a guide sleeve 22 fixedly installed on the top wall of the housing 4 using existing technologies such as bonding, welding, or integral molding; a compression spring 24; a push rod 25; and a push plate 26 fixedly connected to the free end of the push rod 25. The sleeve 22 has a blind groove. The compression spring 24 and the push rod 25 are both located within the guide sleeve 22. One end of the compression spring 24 is fixedly connected to the top wall of the sleeve 22 by bonding or welding, and the other end is fixedly connected to the top surface of the push rod 25 by bonding or welding. This provides an elastic force away from the guide sleeve 22 to the push plate 26 via the push rod 25. At this time, the bottom surface of the push plate 26 abuts against the surface of the pressure plate 15.

[0040] Preferably, the anti-rebound accessory includes a pair of elastic clamping components. Between the pair of elastic clamping components, a telescopic hook 20 is fixedly installed on the top wall of the housing 4 by bonding or welding. A portion of the pressing plate 15 is bent to form a lug and hooked to the telescopic hook 20. A spring stop plate 21 is fixedly connected to the hook body of the telescopic hook 20. The bottom surface of the spring stop plate 21 abuts against the surface of the push plate 26.

[0041] The pressure plate 15 can be pushed toward the webbing 1 by the spring force of the compression spring 24 to drive the push rod 25, thereby increasing the pressure force of the pressure plate 15 on the webbing 1, while the flexible pressure plate 15 rebounds.

[0042] By connecting the lugs to the telescopic hook 20, when the pressure plate 15 is pressed by the downward pushing force of the sleeve 11, the hook body of the telescopic hook 20 carries the spring stop plate 21 downward. At this time, the spring stop plate 21 can press the push plates 26 on both sides to prevent the push plates 26 from rebounding, thus further ensuring the reliability of the pressing.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A compressive tourniquet that avoids pressure rebound, comprising a webbing (1), a buckle (2), a Velcro strap (3), and a rotating rod (8), wherein one end of the webbing (1) is fixedly connected to the buckle (2), the tourniquet body is wound around the buckle (2), and the Velcro strap (3) fixes the end of the webbing (1) to the tourniquet body; characterized in that, The spin-type tourniquet also includes a housing (4) and a compression plate (15) disposed within the base (4). The webbing (1) passes through the housing (4) below the flexible compression plate (15). The compression plate (15) forms an arc shape along the length of the webbing (1). The rotating rod (8) is screwed into the housing (4) by a thread, and the bottom of the rotating rod (8) can contact the outer arc surface of the compression plate (15).

2. The rotational tourniquet for avoiding compression rebound according to claim 1, characterized in that, The housing (4) has an arcuate shape similar to that of the pressure plate (15).

3. The rotational tourniquet for avoiding pressure rebound according to claim 2, characterized in that, The arc of the pressure plate (15) is 50-70°.

4. The rotational tourniquet for avoiding compression rebound according to claim 1, characterized in that, Along the length of the webbing (1), the two ends of the housing (4) extend inward to form a pair of hooks (17), and the surface of the pressure plate (15) is provided with a pair of slots (18), and the hook head of the hook (17) is always engaged in the slot (18).

5. The rotational tourniquet for avoiding compression rebound according to claim 1, characterized in that, The housing (4) is provided with a fixed platform (5), the fixed platform (5) has a vertically arranged internal threaded through hole, and a sleeve (11) is provided in the internal threaded through hole with thread engagement. A sliding groove (13) is provided on the inner wall of the sleeve (11) along the axial direction. The rotating rod (8) has a protrusion (16) on its body. The rotating rod (8) is inserted into the sleeve (11), and the protrusion (16) is located in the sliding groove (13). The bottom of the sleeve (11) can contact the outer arc surface of the pressure plate (15).

6. The rotational tourniquet for avoiding compression rebound according to claim 5, characterized in that, The housing (4) is provided with a limiting unit (6) for limiting the rotation of the rotating rod (8).

7. The rotational tourniquet for avoiding compression rebound according to claim 1, characterized in that, Along the length of the webbing (1), a pair of anti-rebound accessories are provided on both sides of the fixing platform (5). The anti-rebound accessories include at least one set of elastic pressing components. The elastic pressing components include a guide sleeve (22) fixedly installed on the top wall of the housing (4), a compression spring (24), a push rod (25), and a push plate (26) fixedly connected to the free end of the push rod (25). The compression spring (24) and the push rod (25) are both located inside the guide sleeve (22). The compression spring (24) provides an elastic force away from the guide sleeve (22) to the push plate (26) through the push rod (25). The bottom surface of the push plate (26) abuts against the surface of the pressing plate (15).

8. The rotational tourniquet for avoiding compression rebound according to claim 7, characterized in that, The anti-rebound accessory includes a pair of elastic clamping components. Between the pair of elastic clamping components, a telescopic hook (20) is fixedly installed on the top wall of the housing (4). Part of the pressing plate (15) is bent to form a lug and hooked to the telescopic hook (20). A spring stop plate (21) is fixedly connected to the hook body of the telescopic hook (20). The bottom surface of the spring stop plate (21) abuts against the surface of the push plate (26).

9. The rotational tourniquet for avoiding pressure rebound according to claim 1, characterized in that, The bottom of the housing (4) is provided with a strap (9), and the webbing (1) passes through the strap (9).

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