A shock-absorbing prosthetic receiving cavity

Abstract

The utility model relates to the technical field of prosthesis, and belongs to a shock-absorbing prosthesis receiving cavity, including an outer sheath, characterized in that a receiving cavity is arranged inside the outer sheath, an inner sleeve is arranged inside the receiving cavity, the top of the inner sleeve is fixedly connected to the top of the outer sheath, a buffer layer is arranged between the inner sleeve and the outer sheath, a connecting plate is fixedly arranged at the bottom of the buffer layer, a mounting seat is fixedly arranged at the inner bottom of the outer sheath, a shock-absorbing mechanism is arranged between the connecting plate and the mounting seat, and a buffer component is arranged on the side wall of the outer sheath and the outer side of the buffer layer. The utility model can decompose the impact force, realize graded buffering and absorb shock and vibration, can effectively play a longitudinal shock-absorbing role, and can also realize lateral impact absorption through the buffer component to ensure the lateral stability of the receiving cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of prostheses and belongs to a shock-absorbing prosthesis receiving cavity. Background Art

[0002] When walking or moving with a prosthesis, the prosthetic socket will be subjected to constant impact and vibration, which will be directly transmitted to the residual limb, causing the user to feel pain or discomfort, or even cause certain injuries. The socket shock-absorbing structure can effectively absorb and disperse these forces, reduce the burden on the residual limb, and allow the wearer to use the prosthesis more comfortably.

[0003] The current shock-absorbing system of the prosthetic socket often adopts a single-level shock-absorbing structure. This design has limited effect in absorbing and dispersing impact force, especially when facing high-intensity or complex and changeable impacts. Its shock-absorbing effect may not be ideal, which makes it difficult for users to adapt to different environments and activities, affecting the user experience. Utility Model Content

[0004] The utility model provides a shock-absorbing prosthetic receiving cavity, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above object, the utility model provides the following implementation scheme:

[0006] The present application provides a shock-absorbing prosthetic receiving cavity, including an outer sheath, characterized in that a receiving inner cavity is arranged inside the outer sheath, an inner sleeve is arranged inside the receiving inner cavity, the top of the inner sleeve is fixedly connected to the top of the outer sheath, a buffer layer is arranged between the inner sleeve and the outer sheath, a connecting plate is fixedly arranged at the bottom end of the buffer layer, a mounting seat is fixedly arranged at the inner bottom of the outer sheath, a shock-absorbing mechanism is arranged between the connecting plate and the mounting seat, and a buffer component is arranged on the side wall of the outer sheath and the outer side of the buffer layer.

[0007] Preferably, corrugations are fixedly provided on the buffer layer.

[0008] Preferably, the shock absorbing mechanism includes a support column, a connecting piece is fixedly connected to the middle part of the connecting plate, one end of the support column is connected to the connecting piece, the other end of the support column is movably connected to the mounting seat through an axial hole, and a limiting block is arranged at this end of the support column, a movable block is movably connected to the support column, a main shock absorbing spring is coaxially arranged on the support column, and the main shock absorbing spring is located between the connecting piece and the movable block.

[0009] Preferably, a first connecting shaft is provided on the movable block, the first connecting shaft is connected to one end of a connecting rod through a shaft hole, the connecting rod and the first connecting shaft are movably connected, and the other end of the connecting rod is connected to a first slider.

[0010] Preferably, the first sliding block is movably connected to the first sliding rod, the mounting seat is provided with two sliding grooves, the first sliding rod is arranged in the sliding grooves provided on the mounting seat, and an auxiliary shock-absorbing spring is coaxially arranged on the first sliding rod.

[0011] Preferably, a pressure telescopic rod is fixedly connected to the first sliding block, a connecting ear is provided on the top of the pressure telescopic rod, and the connecting ear is movably connected to the second connecting shaft through an axial hole.

[0012] Preferably, the second connecting shaft is fixedly arranged on the connecting block, the connecting block is fixedly connected to the second slider, the second slider is movably connected to the second slide rod, two movable grooves are provided on the bottom of the connecting disk, and the second slide rod is arranged in the movable grooves provided on the connecting disk.

[0013] Preferably, the buffer assembly includes an arched buffer plate and a micro hydraulic cylinder, the top of the arched buffer plate is connected to the outer wall of the buffer layer, the bottom of the arched buffer plate is connected to the inner wall of the outer sheath, the outer sheath is provided with a mounting groove, the micro hydraulic cylinder is fixedly connected to the mounting groove through a fixing frame, and the micro hydraulic cylinder is provided with a telescopic ejector rod, the top of the telescopic ejector rod is fixedly connected to the arched buffer plate.

[0014] Compared with the prior art, the utility model provides a shock-absorbing prosthetic receiving cavity, which has the following beneficial effects:

[0015] 1. The utility model is provided with a shock absorbing mechanism. When the connecting plate is vibrated by external force, the connecting plate is pressed down or lifted by the impact. It is first buffered by the main shock absorbing spring, and then the impact force is decomposed and transmitted to the auxiliary shock absorbing spring through the cooperation of the movable block, the connecting rod and the first slider. The auxiliary shock absorbing springs on both sides buffer and reduce shock respectively, thereby realizing graded buffering of the impact force and playing an effective shock absorbing role.

[0016] Second, the utility model is provided with a buffer component and adopts an arched buffer plate. The arched structure can withstand greater external pressure, can effectively buffer the lateral impact on the receiving cavity, and ensure the lateral stability of the receiving cavity.

[0017] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 for Figure 1 The partial enlarged view at A in the middle is a schematic diagram of the structure of the shock absorbing mechanism of the utility model;

[0020] Figure 3 for Figure 1 The partial enlarged view at B in the middle is a schematic diagram of the structure of the buffer assembly of the utility model;

[0021] In the figure: 1. outer sheath; 2. receiving inner cavity; 3. inner sleeve; 4. buffer layer; 41. corrugation; 5. connecting plate; 51. movable groove; 52. connecting piece; 6. mounting seat; 7. shock absorbing mechanism; 71. support column; 72. movable block; 721. first connecting shaft; 722. connecting rod; 73. main shock absorbing spring; 74. first slider; 75. first slide rod; 76. pressure telescopic rod; 761. connecting ear; 762. second connecting shaft; 77. second slider; 771. connecting block; 78. second slide rod; 8. buffer assembly; 81. arched buffer plate; 82. micro hydraulic cylinder; 83. mounting groove; 84. fixing frame; 85. telescopic ejector rod. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following description, the description of the known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0023] See also Figure 1 A shock-absorbing prosthetic receiving cavity comprises an outer sheath 1, characterized in that a receiving inner cavity 2 is arranged inside the outer sheath 1, an inner sleeve 3 is arranged inside the receiving inner cavity 2, the top of the inner sleeve 3 is fixedly connected to the top of the outer sheath 1, a buffer layer 4 is arranged between the inner sleeve 3 and the outer sheath 1, a connecting plate 5 is fixedly arranged at the bottom end of the buffer layer 4, a mounting seat 6 is fixedly arranged on the inner bottom of the outer sheath 1, a shock-absorbing mechanism 7 is arranged between the connecting plate 5 and the mounting seat 6, and a buffer component 8 is arranged on the side wall of the outer sheath 1 and the outside of the buffer layer 4.

[0024] See also Figure 1 The buffer layer 4 is fixedly provided with corrugations 41, and the corrugations 41 can increase the surface area and flexibility of the buffer layer 4, so that the buffer layer 4 can have more deformation space when subjected to pressure, thereby better absorbing impact energy.

[0025] See also Figure 2The shock absorbing mechanism 7 includes a support column 71, a connecting piece 52 is fixedly connected to the middle part of the connecting plate 5, one end of the support column 71 is connected to the connecting piece 52, and the other end of the support column 71 is movably connected to the mounting seat 6 through an axial hole, and a limiting block 711 is provided at this end of the support column 71. The limiting block 711 is used to ensure the stable cooperation between the support column 71 and the mounting seat 6, and a movable block 72 is movably connected to the support column 71. A main shock absorbing spring 73 is coaxially arranged on the support column 71, and the main shock absorbing spring 73 is located between the connecting piece 52 and the movable block 72. The main shock absorbing spring 7 is used to buffer the impact received by the prosthetic receiving cavity.

[0026] See also Figure 2 A first connecting shaft 721 is provided on the movable block 72, and the first connecting shaft 721 is connected to one end of a connecting rod 722 through an axial hole. The connecting rod 722 and the first connecting shaft 721 are movably connected, and the other end of the connecting rod 722 is connected to a first slider 74. The movable block 72, the connecting rod 722 and the first slider 74 are used to disperse the impact force received by the prosthesis receiving cavity and transmit it to the auxiliary shock-absorbing spring 79.

[0027] See also Figure 2 The first slider 74 is movably connected to the first slide bar 75. The mounting seat 6 is provided with two slide grooves 61. The first slide bar 75 is arranged in the slide groove 61 provided on the mounting seat 6. The slide groove 61 is used to ensure that the buffer space is reserved when the first slider 74 is used. An auxiliary shock-absorbing spring 79 is coaxially arranged on the first slide bar 75. The auxiliary shock-absorbing spring 79 is used for secondary buffering of the impact after decomposition.

[0028] See also Figure 2 A pressure telescopic rod 76 is fixedly connected to the first sliding block 74, and a connecting ear 761 is provided on the top of the pressure telescopic rod 76. The connecting ear 761 is movably connected to a second connecting shaft 762 through an axial hole. The pressure telescopic rod 76 is used to assist in buffering vibrations and can form an effective support to absorb more impact energy.

[0029] See also Figure 2 The second connecting shaft 762 is fixedly set on the connecting block 771, the connecting block 771 is fixedly connected to the second slider 77, the second slider 77 is movably connected to the second slide rod 78, and two movable grooves 51 are formed on the bottom of the connecting disk 5, and the second slide rod 78 is arranged in the movable groove 51 formed on the connecting disk 5.

[0030] See also Figure 3The buffer assembly 8 includes an arched buffer plate 81 and a micro hydraulic cylinder 82. The top of the arched buffer plate 81 is connected to the outer wall of the buffer layer 4, and the bottom of the arched buffer plate 81 is connected to the inner wall of the outer sheath 1. The outer sheath 1 is provided with a mounting groove 83. The micro hydraulic cylinder 82 is fixedly connected to the mounting groove 83 through a fixing frame 84. A telescopic ejector rod 85 is provided on the micro hydraulic cylinder 82. The top of the telescopic ejector rod 85 is fixedly connected to the arched buffer plate 81. The arched buffer plate 81 adopts an arched structure, which can more effectively decompose pressure and ensure the absorption of lateral vibration suffered by the receiving cavity.

[0031] The working principle of the embodiment of the utility model:

[0032] When the utility model is in use, when the receiving cavity is subjected to impact and vibration, the inner lining sleeve 3 is decompressed and deformed to transfer the impact and vibration to the buffer layer 4, and the buffer layer 4 continues to transfer the impact and vibration to the shock absorbing mechanism 7 and the buffer assembly 8 through the connecting plate 5. The support column 71 is pressed down or lifted by the impact, and the main shock absorbing spring 73 is compressed or extended accordingly to complete the initial buffering, and then drives the movable block 72 to move accordingly, and then decomposes the impact force through the connecting rod 722 movably connected to the movable block 72, and transmits the decomposed impact force to the first slider 74. The first slider 74 is subjected to force to slide along the first slide rod 75 accordingly, and secondary buffering is performed through the auxiliary shock absorbing spring; for lateral impact and vibration, the buffer layer 4 transfers the impact to the arched buffer plate 81, and the arched buffer plate 81 is depressurized. At the same time, the micro hydraulic cylinder 82 plays a shock absorbing role, thereby buffering and absorbing the lateral impact.

[0033] The above description is only a preferred embodiment of the present invention, and the printed data cable is not intended to limit the present invention. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A shock-absorbing prosthetic socket, comprising an outer sheath (1), characterized in that: The outer sheath (1) is provided with a receiving inner cavity (2), the receiving inner cavity (2) is provided with an inner sleeve (3), the top end of the inner sleeve (3) is fixedly connected to the top end of the outer sheath (1), a buffer layer (4) is provided between the inner sleeve (3) and the outer sheath (1), a connecting plate (5) is fixedly provided at the bottom end of the buffer layer (4), a mounting seat (6) is fixedly provided at the inner bottom of the outer sheath (1), a shock absorbing mechanism (7) is provided between the connecting plate (5) and the mounting seat (6), and a buffer component (8) is provided between the side wall of the outer sheath (1) and the outer side of the buffer layer (4).

2. A shock-absorbing prosthetic socket as claimed in claim 1, characterized in that: The buffer layer (4) is fixedly provided with corrugations (41).

3. A shock-absorbing prosthetic socket as claimed in claim 1, characterized in that: The shock absorbing mechanism (7) comprises a support column (71), a connecting piece (52) is fixedly connected to the middle of the connecting plate (5), one end of the support column (71) is connected to the connecting piece (52), the other end of the support column (71) is movably connected to the mounting seat (6) through an axial hole, and a limiting block (711) is arranged at this end of the support column (71), the supporting column (71) is movably connected to the movable block (72), and a main shock absorbing spring (73) is coaxially arranged on the supporting column (71), and the main shock absorbing spring (73) is located between the connecting piece (52) and the movable block (72).

4. A shock-absorbing prosthetic socket as claimed in claim 3, characterized in that: The movable block (72) is provided with a first connecting shaft (721), the first connecting shaft (721) is connected to one end of a connecting rod (722) through a shaft hole, the connecting rod (722) and the first connecting shaft (721) are movably connected, and the other end of the connecting rod (722) is connected to a first sliding block (74).

5. A shock-absorbing prosthetic socket as claimed in claim 4, characterized in that: The first sliding block (74) is movably connected to the first sliding rod (75), the mounting seat (6) is provided with two sliding grooves (61), the first sliding rod (75) is arranged in the sliding grooves (61) provided on the mounting seat (6), and an auxiliary shock absorbing spring (79) is coaxially arranged on the first sliding rod (75).

6. A shock-absorbing prosthetic socket as claimed in claim 4, characterized in that: The first sliding block (74) is fixedly connected to a pressure telescopic rod (76), a connecting ear (761) is provided on the top of the pressure telescopic rod (76), and the connecting ear (761) is movably connected to a second connecting shaft (762) through an axial hole.

7. A shock-absorbing prosthetic socket as claimed in claim 6, characterized in that: The second connecting shaft (762) is fixedly arranged on the connecting block (771), the connecting block (771) is fixedly connected to the second sliding block (77), the second sliding block (77) is movably connected to the second sliding rod (78), the lower bottom of the connecting disk (5) is provided with two movable grooves (51), and the second sliding rod (78) is arranged in the movable grooves (51) provided on the connecting disk (5).

8. The shock-absorbing prosthetic socket according to claim 1, characterized in that: The buffer assembly (8) comprises an arched buffer plate (81) and a micro hydraulic cylinder (82); the top of the arched buffer plate (81) is connected to the outer wall of the buffer layer (4); the bottom of the arched buffer plate (81) is connected to the inner wall of the outer jacket (1); a mounting groove (83) is provided on the outer jacket (1); the micro hydraulic cylinder (82) is fixedly connected to the mounting groove (83) via a fixing frame (84); a telescopic ejector rod (85) is provided on the micro hydraulic cylinder (82); the top of the telescopic ejector rod (85) is fixedly connected to the arched buffer plate (81).

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