A chest strap that is easy to wear

Abstract

The present invention discloses a chest strap that is easy to wear, including a chest strap assembly, including a chest strap body, a first fastening strap and a second fastening strap, wherein the first fastening strap and the second fastening strap are both fixed to one side of the chest strap body; the fastening assembly is arranged on the chest strap body, and includes a fixing frame, a rotating sleeve, a gear, a spring box, a spring, a fixing column, a connecting rod, a fixing sleeve and a limiting rod. The present invention can conveniently wear the chest strap through the arrangement of the fastening assembly, and after the chest strap is adjusted to a suitable tightness, the tightness can be marked. During the wearing process, if the chest strap becomes loose, the chest strap can be automatically and timely adjusted to the marked tightness, thereby avoiding the chest strap from being affected in fixing and supporting the chest, and at the same time, the patient does not need to pay attention to the tightness of the chest strap all the time.

Description

Technical Field

[0001] The invention relates to the technical field of chest straps, in particular to a chest strap which is convenient to wear. Background Art

[0002] A chest strap is a medical auxiliary device used on the chest. For patients with chest injuries, such as rib fractures, the chest strap can limit excessive movement of the thorax, relieve pain, promote fracture healing, and help support and protect the chest muscles and soft tissues after injury or surgery. After wearing the chest strap, the patient performs daily activities, such as bending, turning, walking, etc. The body movements will cause the chest strap to gradually shift and loosen. For example, when the patient frequently bends and stretches the body when doing housework, the chest strap will be pulled in different directions, thus becoming loose, and the patient needs to adjust the tightness of the chest strap frequently. The patient may need to stop the ongoing activities and adjust the chest strap specifically, which will interrupt their normal rhythm of life. For example, at work or study, frequent adjustments will reduce efficiency, and the patient needs to pay attention to the status of the chest strap and adjust it at all times, which will cause psychological pressure and anxiety to the patient. If the appropriate tightness cannot be adjusted in a timely and accurate manner, it may affect the chest strap's fixation and support effect on the chest, thereby adversely affecting the recovery of the disease. Summary of the invention

[0003] In view of the problems existing in the above-mentioned existing chest belts that are easy to wear, the present invention is proposed.

[0004] Therefore, the problem to be solved by the present invention is that it is inconvenient to adjust the tightness of the chest strap.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a chest strap that is easy to wear, comprising: a chest strap assembly, including a chest strap body, a first fastening strap and a second fastening strap, wherein the first fastening strap and the second fastening strap are both fixed to one side of the chest strap body;

[0006] The fastening assembly is arranged on the chest strap body, and includes a fixing frame, a rotating sleeve, a gear, a clockwork box, a clockwork, a fixing column, a connecting rod, a fixing sleeve and a limiting rod, wherein the fixing frame is fixed to the chest strap body, the rotating sleeve is located in the fixing frame, the gear is fixed to the outside of the rotating sleeve, the clockwork box is located inside the rotating sleeve, the clockwork is arranged in the rotating sleeve, one end of the fixing column is fixed to the clockwork, two ends of the connecting rod are respectively fixed to the fixing column and the inner wall of the rotating sleeve, the fixing sleeve is located below the rotating sleeve, the limiting rod is located in the fixing sleeve, a limiting groove corresponding to the limiting rod is provided on the rotating sleeve, a first tooth groove is provided on the first fastening belt, the gear is meshed with the first tooth groove, a second tooth groove is provided on the second fastening belt, and the gear is located between the first fastening belt and the second fastening belt.

[0007] As a preferred solution of the easy-to-wear chest strap described in the present invention, wherein: a rotating column is rotatably connected inside the fixed sleeve, a friction wheel is fixed to the outside of the rotating column, the friction wheel is rotatably connected to the bottom of the fixed sleeve through a bearing, a torsion spring is fixed to one end of the rotating column, a threaded column is fixed to one end of the torsion spring, a threaded hole is opened on the limiting rod, and the threaded column is threadedly connected to the threaded hole.

[0008] As a preferred solution of the easy-to-wear chest strap described in the present invention, wherein: the outer side of the threaded column is rotatably connected to a support frame, the support frame is fixed to the inner wall of the fixed sleeve, a movable groove is provided on the support frame, a limiting column is arranged in the movable groove, a limiting hole is provided on the threaded column, the limiting column is engaged with the limiting hole, and a first spring is fixed to one end of the limiting column.

[0009] As a preferred solution of the easy-to-wear chest strap described in the present invention, a force-bearing rod is fixed on one side of the limiting column, a connecting plate is fixed on one side of the rotating column, an extrusion block is fixed on one side of the connecting plate, and both sides of the extrusion block are inclined.

[0010] As a preferred solution of the easy-to-wear chest strap described in the present invention, the outer side of the rotating sleeve is rotatably connected to a support sleeve through a bearing, a push rod is fixed to the top of the support sleeve, a support block is fixed to one side of the support sleeve, a support column is fixed to the inner wall of the fixed frame, and the support column is movably connected to the support block.

[0011] As a preferred solution of the easy-to-wear chest strap described in the present invention, a positioning block is fixed on one side of the fixing sleeve, a stabilizing block is fixed on the inner wall of the fixing frame, a positioning column is fixed on the top of the stabilizing block, the positioning column is movably connected to the inside of the positioning block, a second spring is provided on the outer side of the positioning column, and both ends of the second spring are respectively fixed to the positioning block and the stabilizing block.

[0012] As a preferred solution of the easy-to-wear chest strap of the present invention, a positioning frame is fixed on the top of the fixing frame, an insertion rod is inserted on the positioning frame, a socket is opened on the push rod, and the insertion rod is inserted into the socket.

[0013] As a preferred solution of the easy-to-wear chest strap of the present invention, there are two jacks, which are respectively located at two ends of one side of the push rod.

[0014] As a preferred solution of the easy-to-wear chest strap of the present invention, a fixing block is fixed to one end of the insertion rod, a third spring is fixed to one side of the fixing block, and one end of the third spring is fixed to the positioning frame.

[0015] As a preferred solution of the easy-to-wear chest strap of the present invention, a card block is fixed on one side of the chest strap body, a card slot is opened on one side of the clockwork box, and the card block is movably connected to the card slot.

[0016] The beneficial effects of the present invention are as follows: through the setting of the fastening component, the chest strap can be conveniently worn, and after the chest strap is adjusted to a suitable tightness, the tightness can be marked. During wearing, if the chest strap becomes loose, the chest strap can be automatically and timely adjusted to the marked tightness, thereby avoiding affecting the fixing and supporting effect of the chest strap on the chest, and at the same time, the patient does not need to pay attention to the tightness of the chest strap all the time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 An overall view of the chest strap for easy donning.

[0019] Figure 2 Chest strap for easy wearing Figure 1 A partial enlarged structural diagram in the middle.

[0020] Figure 3 Cross-sectional view of the chest strap fixing frame for easy donning.

[0021] Figure 4 Chest strap for easy wearing Figure 3 A partial enlarged structural diagram of point B in the middle.

[0022] Figure 5 Diagram of the gear and rotating sleeve of the chest strap for easy donning.

[0023] Figure 6 Cross-sectional view of the swivel sleeve of the chest strap for easier donning.

[0024] Figure 7 A cross-sectional view of the structure of the chest strap fixing sleeve for easy donning.

[0025] Figure 8 Chest strap for easy wearing Figure 7 A partial enlarged structural diagram of point C in the middle.

[0026] Fig. 9 Cross-sectional view of the support frame of the chest strap for easy donning.

[0027] In the figure: 100 chest strap assembly, 101 chest strap body, 102 first fastening belt, 103 second fastening belt, 200 fastening assembly, 201 fixing frame, 2011 rotating sleeve, 2012 gear, 2013 spring box, 2014 spring, 2015 fixing column, 2016 connecting rod, 2017 fixing sleeve, 2018 limiting rod, 2011-1 limiting groove, 102-1 first tooth groove, 103-1 second tooth groove, 2021 rotating column, 2022 friction wheel, 2023 torsion spring, 2024 threaded column, 2018-1 threaded hole, 203 1 support frame, 2031-1 movable groove, 2032 limiting column, 2024-1 limiting hole, 2033 first spring, 2034 force rod, 2035 connecting plate, 2036 extrusion block, 2041 support sleeve, 2042 push rod, 2043 support block, 2044 support column, 2051 positioning block, 2052 stabilizing block, 2053 positioning column, 2054 second spring, 2061 positioning frame, 2062 plug rod, 2042-1 jack, 2063 fixing block, 2064 third spring, 101-1 card block, 2013-1 card slot. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0031] Example 1

[0032] Reference Figure 1 and Figure 3-Figure 7 , which is the first embodiment of the present invention, provides a chest strap that is easy to wear. The chest strap that is easy to wear includes a chest strap assembly 100, including a chest strap body 101, a first fastening strap 102 and a second fastening strap 103, and the first fastening strap 102 and the second fastening strap 103 are both fixed to one side of the chest strap body 101.

[0033] The chest strap body 101 is used to help support and protect the chest muscles and soft tissues after injury or surgery. A gap is provided between the first fastening belt 102 and the second fastening belt 103, and the two are used to fit together to fix the chest strap body 101 when worn.

[0034] The fastening assembly 200 is arranged on the chest strap body 101, and includes a fixing frame 201, a rotating sleeve 2011, a gear 2012, a spring box 2013, a spring 2014, a fixing column 2015, a connecting rod 2016, a fixing sleeve 2017 and a limiting rod 2018. The fixing frame 201 is fixed on the chest strap body 101, the rotating sleeve 2011 is located in the fixing frame 201, the gear 2012 is fixed to the outside of the rotating sleeve 2011, the spring box 2013 is located inside the rotating sleeve 2011, the spring 2014 is arranged in the rotating sleeve 2011, and one end of the fixing column 2015 is connected to the spring 2017. 14 is fixed, two ends of the connecting rod 2016 are respectively fixed to the fixing column 2015 and the inner wall of the rotating sleeve 2011, the fixing sleeve 2017 is located below the rotating sleeve 2011, the limiting rod 2018 is located in the fixing sleeve 2017, the rotating sleeve 2011 is provided with a limiting groove 2011-1 corresponding to the limiting rod 2018, the first fastening belt 102 is provided with a first tooth groove 102-1, the gear 2012 is meshed with the first tooth groove 102-1, the second fastening belt 103 is provided with a second tooth groove 103-1, and the gear 2012 is located between the first fastening belt 102 and the second fastening belt 103.

[0035] There are multiple limiting grooves 2011 - 1 , which are evenly distributed on the outer side of the rotating sleeve 2011 in a ring shape.

[0036] When the chest strap body 101 is worn, the first fastening belt 102 and the second fastening belt 103 are inserted into the fixed frame 201. At this time, the first tooth groove 102-1 will engage with the gear 2012 and drive the gear 2012 to rotate, and the gear 2012 drives the rotating sleeve 2011 to rotate. When the rotating sleeve 2011 rotates, it drives the fixed column 2015 to rotate through the connecting rod 2016, so that the spring 2014 can be tightened and charged through the fixed column 2015. When the first fastening belt 102 and the second fastening belt 103 move a certain distance in the fixed frame 201 and apply a suitable tightness to the chest strap assembly 100.

[0037] At this time, the rotating sleeve 2011 is moved downward, and the rotating sleeve 2011 drives the gear 2012 to move downward, so that the gear 2012 is meshed with the second tooth groove 103-1, and the limiting rod 2018 is engaged with the limiting groove 2011-1. Through the cooperation of the two, the rotating sleeve 2011 and the gear 2012 are locked, so that the two cannot rotate, thereby preventing the first fastening belt 102 and the second fastening belt 103 from moving toward the outside of the fixed frame 201 and causing the tightness of the chest strap body 101 to loosen. At the same time, the tightened spring 2014 can also be locked to prevent the spring 2014 from driving the rotating sleeve 2011 and the gear 2012 to rotate, so that the gear 2012 continues to drive the first fastening belt 102 and the second fastening belt 103 to move toward the inside of the fixed frame 201 through the cooperation of the second tooth groove 103-1, thereby causing the tightness of the chest strap body 101 to be too tight.

[0038] During daily wear, when the chest strap body 101 is subjected to pulling forces in different directions, the first fastening belt 102 and the second fastening belt 103 will move toward the outside of the fixing frame 201, causing the chest strap body 101 to become loose. At this time, the limiting rod 2018 will separate from the limiting groove 2011-1, and the restriction on the mainspring 2014 will be released. At this time, the torsional force of the mainspring 2014 will drive the rotating sleeve 2011 and the gear 2012 to rotate, and the gear 2012 will rotate through the cooperation of the second tooth groove 103-1. The second fastening belt 103 is driven to move into the fixing frame 201, so that the tightness of the chest strap body 101 can be locked again, and when locked to the initial force, the limit rod 2018 will engage with the limit groove 2011-1 again, and restrict the mainspring 2014, so that the mainspring 2014 can no longer release the torsional force, thereby avoiding the situation where the chest strap body 101 is too tight, thereby preventing the chest strap body 101 from affecting the fixing and supporting effect of the chest, and at the same time, the patient does not need to pay attention to the tightness of the chest strap all the time.

[0039] Example 2

[0040] Reference Figure 2-Figure 9 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0041] Specifically, a rotating column 2021 is rotatably connected inside the fixed sleeve 2017, a friction wheel 2022 is fixed to the outside of the rotating column 2021, the friction wheel 2022 is rotatably connected to the bottom of the fixed sleeve 2017 through a bearing, a torsion spring 2023 is fixed to one end of the rotating column 2021, a threaded column 2024 is fixed to one end of the torsion spring 2023, a threaded hole 2018-1 is opened on the limiting rod 2018, and the threaded column 2024 is threadedly connected to the threaded hole 2018-1.

[0042] A friction groove is provided on the friction wheel 2022, and a corresponding friction block is fixed on one side of the second fastening belt 103. When the rotating sleeve 2011 moves downward and the limiting rod 2018 engages with the limiting groove 2011-1, it will continue to push the limiting rod 2018 and the fixed sleeve 2017 to move downward, and drive the friction wheel 2022 to move downward through the fixed sleeve 2017, so that the friction groove engages with the friction block.

[0043] When the second fastening belt 103 moves toward the outside of the fixed frame 201, it will drive the friction wheel 2022 to rotate through the friction groove and the friction block, and drive the rotating column 2021 to rotate through the friction wheel 2022, so that the rotating column 2021 tightens the torsion spring 2023. When the second fastening belt 103 moves a certain stroke and the force of the chest strap body 101 is too loose, the torsion spring 2023 will drive the threaded column 2024 to rotate, and the threaded column 2024 will drive the limit rod 2018 to move through the cooperation of the threaded hole 2018-1, so that the limit rod 2018 can be separated from the limit groove 2011-1.

[0044] When the second fastening belt 103 moves into the fixed frame 201, it will drive the friction wheel 2022 to rotate in the opposite direction through the friction groove and the friction block, so that the friction wheel 2022 drives the rotating column 2021 to rotate, and the rotating column 2021 applies a reverse torsional force to the torsion spring 2023. When the second fastening belt 103 moves a certain stroke and the tightness of the chest strap body 101 is restored to the initial state, the torsion spring 2023 will drive the threaded column 2024 to rotate and make the limiting rod 2018 engage with the limiting groove 2011-1.

[0045] Specifically, the outer side of the threaded column 2024 is rotatably connected to a support frame 2031, the support frame 2031 is fixed to the inner wall of the fixed sleeve 2017, a movable groove 2031-1 is opened on the support frame 2031, a limiting column 2032 is arranged in the movable groove 2031-1, a limiting hole 2024-1 is opened on the threaded column 2024, the limiting column 2032 is engaged with the limiting hole 2024-1, and a first spring 2033 is fixed to one end of the limiting column 2032.

[0046] There are multiple limiting holes 2024-1, which are evenly distributed in a ring shape on the outside of the threaded column 2024. When the limiting column 2032 is engaged with the limiting hole 2024-1, the threaded column 2024 can be locked through the cooperation of the two to prevent the threaded column 2024 from rotating due to the torsional force of the torsion spring 2023. The first spring 2033 applies a thrust to the limiting column 2032, so that the limiting column 2032 and the limiting hole 2024-1 are more tightly engaged.

[0047] Specifically, a force-bearing rod 2034 is fixed to one side of the limiting column 2032 , a connecting plate 2035 is fixed to one side of the rotating column 2021 , and an extrusion block 2036 is fixed to one side of the connecting plate 2035 , and both sides of the extrusion block 2036 are inclined.

[0048] The connecting plate 2035 is L-shaped. When the rotating column 2021 rotates, it will drive the connecting plate 2035 and the extrusion block 2036 to rotate at the same time.

[0049] When the second fastening belt 103 moves a certain distance toward the outside of the fixed frame 201 and the force of the chest strap body 101 is too loose, the rotating column 2021 will drive the extrusion block 2036 to rotate one circle, and make its inclined surface contact with the force-bearing rod 2034, and push the force-bearing rod 2034 to move. At the same time, the force-bearing rod 2034 drives the limiting column 2032 to move, so that the limiting column 2032 can be separated from the limiting hole 2024-1, and the restriction on the threaded column 2024 is released. At this time, the threaded column 2024 can be driven to rotate by the torsion spring 2023.

[0050] When the second fastening belt 103 moves into the fixed frame 201 and the tightness of the chest strap body 101 is restored to its initial state, the rotating column 2021 will drive the extrusion block 2036 to rotate in the opposite direction for one circle, and make the inclined surface on the other side contact with the force-bearing rod 2034, and push the force-bearing rod 2034 to move again, so that the limiting column 2032 is separated from the limiting hole 2024-1, and the threaded column 2024 can be driven to rotate by the torsion spring 2023.

[0051] Specifically, the outer side of the rotating sleeve 2011 is rotatably connected to the support sleeve 2041 through a bearing, a push rod 2042 is fixed to the top of the support sleeve 2041, a support block 2043 is fixed to one side of the support sleeve 2041, and a support column 2044 is fixed to the inner wall of the fixed frame 201, and the support column 2044 is movably connected to the support block 2043.

[0052] The support column 2044 cooperates with the support block 2043 to support the support sleeve 2041 , and the rotating sleeve 2011 is rotated by the support sleeve 2041 . The push rod 2042 can facilitate the user to push the rotating sleeve 2011 downward.

[0053] Specifically, a positioning block 2051 is fixed on one side of the fixed sleeve 2017, a stabilizing block 2052 is fixed on the inner wall of the fixed frame 201, a positioning column 2053 is fixed on the top of the stabilizing block 2052, the positioning column 2053 is movably connected with the positioning block 2051, a second spring 2054 is sleeved on the outer side of the positioning column 2053, and both ends of the second spring 2054 are respectively fixed to the positioning block 2051 and the stabilizing block 2052.

[0054] The positioning column 2053 cooperates with the positioning block 2051 to support the fixing sleeve 2017 , and an upward thrust is applied to the positioning block 2051 through the second spring 2054 .

[0055] Example 3

[0056] Reference Figure 1-Figure 9 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0057] Specifically, a positioning frame 2061 is fixed on the top of the fixing frame 201, and an insertion rod 2062 is inserted into the positioning frame 2061. A plug hole 2042-1 is provided on the push rod 2042, and the plug rod 2062 is inserted into the plug hole 2042-1.

[0058] The insertion rod 2062 cooperates with the insertion hole 2042 - 1 to lock the position of the push rod 2042 , thereby locking the position of the rotating sleeve 2011 .

[0059] Specifically, there are two jacks 2042 - 1 , which are located at two ends of one side of the push rod 2042 .

[0060] By setting the two insertion holes 2042-1, the rotating sleeve 2011 can be locked at two positions, the upper and lower positions.

[0061] Specifically, a fixing block 2063 is fixed to one end of the insertion rod 2062 , a third spring 2064 is fixed to one side of the fixing block 2063 , and one end of the third spring 2064 is fixed to the positioning frame 2061 .

[0062] The third spring 2064 is used to apply a pulling force to the fixing block 2063 and drive the insertion rod 2062 to move through the fixing block 2063, so that the insertion rod 2062 and the insertion hole 2042-1 can be more tightly engaged.

[0063] Specifically, a card block 101 - 1 is fixed to one side of the chest strap body 101 , a card slot 2013 - 1 is opened on one side of the clockwork box 2013 , and the card block 101 - 1 is movably connected to the card slot 2013 - 1 .

[0064] The engagement of the clamping block 101 - 1 and the clamping slot 2013 - 1 is used to limit the position of the barrel 2013 to prevent the barrel 2013 from rotating.

[0065] In summary, the chest strap that is easy to wear according to the present invention has the following advantages:

[0066] 1. Easy to wear;

[0067] 2. When the tightness of the chest strap becomes loose, it can be automatically and timely adjusted to the appropriate force;

[0068] 3. The tightness of the chest strap can be marked. When automatically adjusting, it will only be adjusted to the marked force, and will not be too loose or too tight.

[0069] Fourth, the spring 2014 can be charged while being worn, avoiding the need for the user to apply additional tightening force.

[0070] When in use, when the chest strap body 101 is worn, the first fastening strap 102 and the second fastening strap 103 are inserted into the fixed frame 201, and the first tooth groove 102-1 will mesh with the gear 2012 and drive the gear 2012 to rotate, and the rotating sleeve 2011 is driven to rotate through the gear 2012. When the rotating sleeve 2011 rotates, it will drive the fixed column 2015 to rotate through the connecting rod 2016, so that the spring 2014 can be tightened and charged through the fixed column 2015, when the first fastening strap 102 and the second fastening strap 103 move a certain distance in the fixed frame 201, and the chest strap assembly 100 is applied with appropriate tightness.

[0071] At this time, the rotating sleeve 2011 is moved downward, and the rotating sleeve 2011 drives the gear 2012 to move downward, so that the gear 2012 is meshed with the second tooth groove 103-1, and the limiting rod 2018 is engaged with the limiting groove 2011-1. Through the cooperation of the two, the rotating sleeve 2011 and the gear 2012 are locked, so that the two cannot rotate, thereby preventing the first fastening belt 102 and the second fastening belt 103 from moving toward the outside of the fixed frame 201 and causing the tightness of the chest strap body 101 to loosen. At the same time, the tightened spring 2014 can also be locked to prevent the spring 2014 from driving the rotating sleeve 2011 and the gear 2012 to rotate, so that the gear 2012 continues to drive the first fastening belt 102 and the second fastening belt 103 to move toward the inside of the fixed frame 201 through the cooperation of the second tooth groove 103-1, thereby causing the tightness of the chest strap body 101 to be too tight.

[0072] During daily wearing, when the chest strap body 101 is subjected to pulling forces in different directions, the first fastening belt 102 and the second fastening belt 103 will move toward the outside of the fixed frame 201, causing the tightness of the chest strap body 101 to loosen, and the friction wheel 2022 will be driven to rotate through the friction groove and the friction block, and the friction wheel 2022 will drive the rotating column 2021 to rotate, so that the rotating column 2021 tightens the torsion spring 2023. When the second fastening belt 103 moves a certain stroke and makes the chest strap body 101 too loose, the torsion spring 2023 will drive the threaded column 2024 to rotate, and the threaded column 2024 will drive the limit rod 2018 to move through the cooperation of the threaded hole 2018-1, so that the limit rod 2018 can be separated from the limit groove 2011-1.

[0073] At this time, the torsional force of the spring 2014 drives the rotating sleeve 2011 and the gear 2012 to rotate, and the gear 2012 drives the second fastening belt 103 to move into the fixed frame 201 through the cooperation of the second tooth groove 103-1, so that the tightness of the chest strap body 101 can be locked again, and when locked to the initial force, the limit rod 2018 will engage with the limit groove 2011-1 again, so that the spring 2014 can no longer release the torsional force, thereby avoiding the situation where the chest strap body 101 is too tight, thereby avoiding the chest strap body 101. The fixation and support effect of the chest is affected, and at the same time, the patient does not need to pay attention to the tightness of the chest strap at all times.

[0074] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A chest strap that is easy to wear, characterized in that: include, A chest strap assembly, comprising a chest strap body, a first fastening strap and a second fastening strap, wherein the first fastening strap and the second fastening strap are both fixed to one side of the chest strap body; A fastening assembly is arranged on the chest strap body, and includes a fixed frame, a rotating sleeve, a gear, a clockwork box, a clockwork, a fixed column, a connecting rod, a fixed sleeve and a limiting rod, wherein the fixed frame is fixed to the chest strap body, the rotating sleeve is located in the fixed frame, the gear is fixed to the outside of the rotating sleeve, the clockwork box is located on the inside of the rotating sleeve, the clockwork is arranged in the rotating sleeve, one end of the fixed column is fixed to the clockwork, and both ends of the connecting rod are respectively fixed to the fixed column and the inner wall of the rotating sleeve, the fixed sleeve is located below the rotating sleeve, the limiting rod is located in the fixed sleeve, a limiting groove corresponding to the limiting rod is provided on the rotating sleeve, a first tooth groove is provided on the first fastening belt, and the gear is connected to the first The teeth and grooves are meshed, and the second fastening belt is provided with a second tooth groove, and the gear is located between the first fastening belt and the second fastening belt. A rotating column is rotatably connected in the fixed sleeve, and a friction wheel is fixed on the outside of the rotating column. The friction wheel is rotatably connected to the bottom of the fixed sleeve through a bearing, and a torsion spring is fixed to one end of the rotating column, and a threaded column is fixed to one end of the torsion spring. A threaded hole is provided on the limit rod, and the threaded column is threadedly connected to the threaded hole. A friction groove is provided on the friction wheel, and a corresponding friction block is fixed on one side of the second fastening belt. When the rotating sleeve moves downward and the limit rod is engaged with the limit groove, the limit rod and the fixed sleeve will continue to be pushed downward, and the friction wheel is driven downward by the fixed sleeve to engage with the friction block.

2. The easy-to-wear chest strap according to claim 1, characterized in that: A support frame is rotatably connected to the outer side of the threaded column, and the support frame is fixed to the inner wall of the fixed sleeve. A movable groove is provided on the support frame, and a limiting column is arranged in the movable groove. A limiting hole is provided on the threaded column, and the limiting column is engaged with the limiting hole. A first spring is fixed to one end of the limiting column.

3. The easy-to-wear chest strap according to claim 2, characterized in that: A force bearing rod is fixed on one side of the limiting column, a connecting plate is fixed on one side of the rotating column, an extrusion block is fixed on one side of the connecting plate, and both sides of the extrusion block are inclined.

4. The easy-to-wear chest strap according to claim 2 or 3, characterized in that: The outer side of the rotating sleeve is rotatably connected with a support sleeve through a bearing, a push rod is fixed on the top of the support sleeve, a support block is fixed on one side of the support sleeve, a support column is fixed on the inner wall of the fixed frame, and the support column is movably connected with the support block.

5. The easy-to-wear chest strap according to claim 4, characterized in that: A positioning block is fixed on one side of the fixing sleeve, a stabilizing block is fixed on the inner wall of the fixing frame, a positioning column is fixed on the top of the stabilizing block, the positioning column is movably connected with the positioning block, a second spring is sleeved on the outer side of the positioning column, and both ends of the second spring are respectively fixed to the positioning block and the stabilizing block.

6. The easy-to-wear chest strap according to claim 5, characterized in that: A positioning frame is fixed on the top of the fixing frame, an insertion rod is inserted on the positioning frame, a plug hole is provided on the push rod, and the plug rod is inserted into the plug hole.

7. The easy-to-wear chest strap according to claim 6, characterized in that: There are two jacks, which are respectively located at two ends of one side of the push rod.

8. The easy-to-wear chest strap according to claim 6 or 7, characterized in that: A fixing block is fixed at one end of the insertion rod, a third spring is fixed at one side of the fixing block, and one end of the third spring is fixed to the positioning frame.

9. The easy-to-wear chest strap according to claim 8, characterized in that: A clamping block is fixed on one side of the chest strap body, a clamping slot is provided on one side of the clockwork box, and the clamping block is movably connected to the clamping slot.

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