Upper arm clamp of adjustable receiving cavity

Abstract

The utility model discloses an upper arm clamping hoop of an adjustable receiving cavity, which is applied to the field of rehabilitation assistive devices, and comprises a first clamping ring and a second clamping ring which are movably connected with the receiving cavity, an operation unit is arranged between the first clamping ring and the second clamping ring, the first clamping ring, the second clamping ring and the operation unit are connected through an elastic sheet, and under the action of the operation unit, the first clamping ring and the second clamping ring are connected with the operation unit. When the elastic piece drives the first clamping ring and the second clamping ring to synchronously move outwards or retract inwards, the hoop is expanded outwards or retracted inwards; the clamping hoop is simple in structure and novel in design, not only can be connected with a receiving cavity in a split mode, but also can adjust the diameter of the clamping hoop according to the conditions of the upper arms of users, and can meet the requirements of different users; when a user wears the artificial limb, the elbow joint is exposed outside, the motion of the artificial limb is not limited, the motion ability of the artificial limb is greatly improved, the motion range is greatly increased, the artificial limb can be matched with big arms with different thicknesses, the comfort is met, meanwhile, the application range is wide, the cost is low, multiple functions are achieved, practicability is good, and the artificial limb is deeply loved by the user.

Description

Technical Field

[0001] The utility model relates to the field of rehabilitation assistive devices, in particular to an upper arm clamp of an adjustable receiving cavity. Background Art

[0002] At present, the receiving cavity is mostly an integrated setting. The forearm receiving cavity needs to be wrapped all the way to the top of the elbow joint. The elbow joint is tightened and limited in movement. The range of motion of the prosthesis is small. When lifting upward, it cannot touch the head; when exerting force downward, it cannot complete the action of stretching or extracting heavy objects. Moreover, when the prosthesis is stretched or extracting objects, the receiving cavity is easy to fall off the residual limb; in addition, during the use of the prosthesis, the residual limb and the opening of the receiving cavity are easily strangled to leave a deep mark, resulting in poor blood circulation in the residual limb, poor excretion ability, and a strong odor.

[0003] Based on the above reasons, the split receiving cavity has gradually attracted attention. The clamp and the receiving cavity are firmly connected and can also prevent the clamp and the upper arm from falling off. The clamp and the upper arm must be clamped tightly. If users with thicker upper arms wear them for a long time, the clamp will tighten the upper arm too much and cause pain, which will cause certain troubles to the users.

[0004] It is necessary to develop a clamp that is separately connected to the receiving cavity and can adjust the diameter of the clamp according to the thickness of the user's upper arm to increase the comfort of the user. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an upper arm clamp with an adjustable receiving cavity, which has a simple structure and is easy to use. It is not only separately connected to the receiving cavity, but also can adjust the diameter of the clamp according to the thickness of the user's upper arm, thereby greatly increasing the user's comfort.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] The utility model comprises a first clamping ring and a second clamping ring which are movably connected to a receiving cavity, an operating unit is arranged between the first clamping ring and the second clamping ring, the first clamping ring, the second clamping ring and the operating unit are connected by a spring sheet, under the action of the operating unit, the spring sheet drives the first clamping ring and the second clamping ring to move outward or inward synchronously while the clamp is expanded or closed.

[0008] A further improvement of the utility model is that the operating unit includes a matching part and an operating part arranged inside the matching part and corresponding to the matching part, an operating end is provided at the center of the operating part, steps are symmetrically provided on both sides, a boss corresponding to the operating end is provided on the matching part, a countersunk hole for placing a spring is provided at the center of the boss, and the other end of the spring is connected to the operating end.

[0009] A further improvement of the utility model is that a round hole connected to the operating end is provided on the matching portion, a groove corresponding to the round hole is provided on the operating end, and a screw passing through the round hole connects the matching portion with the operating end via the round hole and the groove.

[0010] A further improvement of the utility model is that the groove slides along the screw passing through the round hole along with the operating end.

[0011] A further improvement of the utility model is that: a hole for fixing the spring sheet is provided on the matching portion, the hole corresponds to the fixing hole provided on the spring sheet, and the matching portion and the spring sheet are fixed through the hole and the fixing hole.

[0012] A further improvement of the utility model is that both the first clamping ring and the second clamping ring are provided with through holes, and fixing screws passing through the through holes connect the first clamping ring to the first adjustment plate, and the second clamping ring to the second adjustment plate.

[0013] A further improvement of the utility model is that: slideways are provided on both the first adjustment plate and the second adjustment plate, and the slideways slide left and right along the fixing screws.

[0014] A further improvement of the utility model is that the first adjustment plate and the second adjustment plate are symmetrically arranged on both sides of the operating end, and move left and right along the step respectively with the first clamping ring and the second clamping ring under the action of the operating unit.

[0015] A further improvement of the utility model is that: the first clamping ring and the second clamping ring are both provided with concave holes, the concave holes correspond to the fixing holes on the spring sheet, and the first clamping ring, the second clamping ring and the spring sheet are fixed through the concave holes and the fixing holes.

[0016] A further improvement of the utility model is that: the first clamp ring and the second clamp ring are both provided with connection holes connected to the receiving cavity.

[0017] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are:

[0018] The utility model has a simple structure and novel design. It can not only realize the split connection with the receiving cavity, but also adjust the diameter of the clamp according to the user's own conditions, and can match the upper arms of different thicknesses. When the user wears it, the elbow joint is exposed and can move freely without restriction. In this way, the mobility of the prosthesis is greatly improved, the range of movement is greatly increased, and the comfort of the user is greatly improved. In short, it has low cost, multiple functions, good practicality, and is deeply loved by users. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2It is a schematic diagram of the main structure of the utility model in the closed state without the adjustment plate;

[0021] Figure 3 This utility model Figure 2 The main structural diagram without the operating end;

[0022] Figure 4 This is a schematic diagram of the main structure of the utility model in an open state;

[0023] Figure 5 This is a schematic diagram of the main structure of the utility model in the closed state;

[0024] Figure 6 It is a rear view structural schematic diagram of the utility model;

[0025] Figure 7 This utility model Figure 6 A schematic diagram of the rear view structure without the shrapnel;

[0026] Figure 8 This utility model Figure 4 Schematic diagram of the top view of the structure without the matching part.

[0027] Among them, 1. first clamping ring; 2. connecting hole; 3. rubber strip; 4. second clamping ring; 5. matching part; 5-1. round hole; 5-2. hole; 5-3. countersunk hole; 5-4. boss; 6. operating part; 6-1. operating end; 6-2. step; 6-3. groove; 7. second adjustment plate; 8. first adjustment plate; 9. slideway; 10. through hole; 11. concave hole; 12. spring piece; 12-1. fixing hole. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the embodiments:

[0029] The upper arm clamp of the adjustable receiving cavity, such as Figure 1-8 As shown, it includes a first clamp ring 1 and a second clamp ring 4 that are movably connected to the receiving cavity, and the first clamp ring 1 and the second clamp ring 4 are both provided with a connecting hole 2 that is movably connected to the receiving cavity. During use, the clamp formed by the first clamp ring 1 and the second clamp ring 4 is clamped on the upper arm above the elbow joint and above the upper ankle bone, and the receiving cavity is sleeved on the residual limb below the elbow joint. In this way, the elbow joint between the clamp and the receiving cavity is exposed to the outside and can move freely without restriction. Therefore, after the user wears it, the mobility of the prosthesis is greatly improved, the range of motion is greatly increased, and it can also match the upper arms of different thicknesses, which is deeply loved by users.

[0030] like Figure 6As shown, an operating unit is provided between the first clamping ring 1 and the second clamping ring 4. The first clamping ring 1, the second clamping ring 4 and the operating unit are connected by a spring sheet 12. The spring sheet 12 has a certain elasticity and is made of an elastic metal material. It has a certain strength and a certain toughness, ensuring that the spring sheet 12 does not lose its elasticity or break under the action of repeated operations of the operating unit.

[0031] Under the action of the operating unit, the spring 12 will drive the first clamp ring 1 and the second clamp ring 4 to move outward or inward synchronously, while the clamp will expand or close. Figure 1 As shown, when the operating unit is pressed downward, the step 6-2 on the operating part 6 moves downward and deviates from the first adjustment plate 8 and the second adjustment plate 7. When the first adjustment plate 8 and the second adjustment plate 7 are separated from the step 6-2, the spring sheet 12 stretches under the elastic force of the spring sheet 12, driving the first clamping ring 1 and the second clamping ring 4 to expand outward at the same time. When the first clamping ring 1 and the second clamping ring 4 expand outward, they drive the first adjustment plate 8 and the second adjustment plate 7 to continuously reach the operating end 6-1 from the left and right sides. At this time, the first adjustment plate 8 and the second adjustment plate 7 jointly clamp the operating end 6-1, and at the same time cross over and block the step 6-2 to prevent the operating part 6 from being ejected. Until as shown in FIG. Figure 4 The state shown is more suitable for removing the clamp from the upper arm or wearing the clamp on the upper arm. Because when the first clamp 1 and the second clamp 4 are expanded outward, the diameter of the clamp surrounded by the first clamp 1 and the second clamp 4 becomes larger and the opening becomes larger, which is convenient for wearing and removing the clamp; when the user wears the clamp in the upper outward state on the upper arm, he operates the first clamp 1 and the second clamp 4 inward with force at the same time, and the spring 12 is bent and deformed. At the same time, the first adjustment plate 8 fixed to the first clamp 1 and the second adjustment plate 7 fixed to the second clamp 4 move outward away from the two sides of the operating end 6-1 until the distance between the first adjustment plate 8 and the second adjustment plate 7 is greater than the width of the operating part 6. When the inward force stops, the operating end 6-1 pops outward under the action of the spring until the first adjustment plate 8 and the second adjustment plate 7 are clamped at the end of the step 6-2 and are clamped by the step 6-2, as shown in FIG. Figure 5 In the state shown, at this time, while the first clamp ring 1 and the second clamp ring 4 are retracted inward, the clamp formed by the first clamp ring 1 and the second clamp ring 4 is retracted inward and the diameter becomes smaller, and the clamp is clamped at the upper arm and will not fall off easily.

[0032] like Figure 2 As shown, the operating unit includes an operating portion 6 and a matching portion 5 corresponding to the operating portion 6, and the operating portion 6 is slidably arranged inside the matching portion 5. An operating end 6-1 is arranged at the center of the operating portion 6, and steps 6-2 are symmetrically arranged on both sides. Figure 3The mating portion 5 shown in the figure is provided with a boss 5-4 corresponding to the operating end 6-1, the operating portion 6 is arranged above the mating portion 5, the mating portion between the operating end 6-1 and the boss 5-4 is concave, which facilitates the perfect mating of the operating end 6-1 and the boss 5-4, and the step 6-2 corresponds to the mating portion 5 on both sides of the boss 5-4. Under the action of the operating unit, the first adjustment plate 8 on the first clamping ring 1 and the second adjustment plate 7 on the second clamping ring 4 are simultaneously moved inward from the end of the step 6-2 to the operating end 6-1. Figure 4 As shown, the wearing and removal of the clamp can be facilitated; the user wears the clamp on the upper arm, and when the first adjustment plate 8 and the second adjustment plate 7 are simultaneously moved outward from the operating end 6-1 to the end surface of the step 6-2, as shown Figure 5 As shown, at this time, the first adjustment plate 8 and the second adjustment plate 7 tighten the step 6-2 from both sides, and the clamp cannot fall off from the upper arm.

[0033] like Figure 1 As shown, the matching portion 5 is provided with a round hole 5-1 connected to the operating end 6-1. Figure 8 As shown, the operating end 6-1 is provided with a groove 6-3 corresponding to the circular hole 5-1, and the screw passing through the circular hole 5-1 connects the mating part 5 with the operating end 6-1 through the circular hole 5-1 and the groove 6-3. The groove 6-3 slides along the screw passing through the circular hole 5-1 with the operating end 6-1. Figure 3 As shown, a countersunk hole 5-3 for placing a spring is provided at the center of the boss 5-4, and the other end of the spring is connected to the operating end 6-1. When the operating end 6-1 is pressed downward, the groove 6-3 moves downward along the screw, and the spring arranged in the countersunk hole 5-3 contracts, and the operating part 6 moves downward until the first adjusting plate 8 and the second adjusting plate 7 are separated from the step 6-2. Under the elastic force of the spring piece 12, the spring piece 12 stretches and drives the first clamping ring 1 and the second clamping ring 4 to expand outward at the same time, and the clamp opens; only when the first clamping ring 1 and the second clamping ring 4 are pushed inward and the spring piece 12 is bent, the first adjusting plate 8 and the second adjusting plate 7 move outward from both sides of the operating end 6-1. When the gap between the first adjusting plate 8 and the second adjusting plate 7 is greater than the width of the operating part 6, that is, when the first adjusting plate 8 and the second adjusting plate 7 are separated from the operating part 6, under the action of the spring force, the operating part 6 bounces upward and the spring piece 12 is recovered, driving the first adjusting plate 8 and the second adjusting plate 7 to be recovered, until the first adjusting plate 8 and the second adjusting plate 7 are simultaneously clamped on the step 6-2, the first adjusting plate 8 and the second adjusting plate 7 are supported by the step 6-2, and the clamps are in a closed state.

[0034] like Figure 6 and Figure 7As shown, the matching portion 5 is provided with a hole 5-2 fixed to the spring sheet 12, and the hole 5-2 corresponds to the fixing hole 12-1 provided on the spring sheet 12, and the matching portion 5 is fixed to the spring sheet 12 through the hole 5-2 and the fixing hole 12-1. The first snap ring 1 and the second snap ring 4 are both provided with a recessed hole 11, and the recessed hole 11 corresponds to the fixing hole 12-1 on the spring sheet 12, and the first snap ring 1, the second snap ring 4 and the spring sheet 12 are fixed through the recessed hole 11 and the fixing hole 12-1. The operating unit, the first snap ring 1, and the second snap ring 4 can be connected to the spring sheet 12 through the hole 5-2, the recessed hole 11 and the fixing hole 12-1, so that the spring sheet 12 realizes the function of connecting the first snap ring 1, the second snap ring 4 and the operating unit together. When the spring sheet 12 moves, the first snap ring 1 and the second snap ring 4 will move accordingly to realize the corresponding function.

[0035] like Figure 1-Figure 5 As shown, the first clamping ring 1 and the second clamping ring 4 are both provided with a through hole 10, and the fixing screws passing through the through hole 10 connect the first clamping ring 1 with the first adjustment plate 8, and the second clamping ring 4 with the second adjustment plate 7. The first adjustment plate 8 and the second adjustment plate 7 are provided with a slideway 9, and the slideway 9 can slide left and right along the fixing screws. By adjusting the fixing position of the fixing screws and the slideway 9, the fixing position of the first adjustment plate 8 and the first clamping ring 1, and the fixing position of the second clamping ring 4 and the second adjustment plate 7 are adjusted, and the size of the clamp diameter can be adjusted to meet the requirements of different users. When the user's upper arm is relatively thick, the first adjustment plate 8 and the second adjustment plate 7 are adjusted to make the slideway 9 move outward along the fixing screw until the position suitable for the user to wear is reached, and the fixing screw is tightened to fix the first clamping ring 1 to the first adjustment plate 8 and the second clamping ring 4 to the second adjustment plate 7; when the user's upper arm is relatively thin, the first adjustment plate 8 and the second adjustment plate 7 are adjusted to make the slideway 9 move inward along the fixing screw to the position suitable for the user to wear, and the fixing screw is tightened to fix the first clamping ring 1 to the first adjustment plate 8 and the second clamping ring 4 to the second adjustment plate 7. It can be seen that the arrangement of the slideway 9 on the first adjustment plate 8 and the second adjustment plate 7, the through hole 10 on the first clamping ring 1 and the second clamping ring 4 and the fixing screw can effectively adjust the relative position of the first clamping ring 1 and the first adjustment plate 8, and can also adjust the relative position of the second clamping ring 4 and the second adjustment plate 7, which can meet the needs of users with thick upper arms and users with thin upper arms. Users can adjust the positions of the first adjustment plate 8 and the second adjustment plate 7 according to their own conditions.

[0036] The first adjustment plate 8 and the second adjustment plate 7 are symmetrically arranged on both sides of the operating end 6-1. Under the action of the operating unit, the first adjustment plate 8 and the second adjustment plate 7 support or disengage from the step 6-2 to realize the opening or closing of the clamp to meet the wearing and removal needs of the user.

[0037] In summary, during the use of the user, first adjust the fixed position of the slideway 9 on the first adjustment plate 8 and the second adjustment plate 7 and the fixing screws passing through the through hole 10 according to the thickness of the user's upper arm, and then firmly fix them. After that, press the operating unit downward to open the clamp and place it on the upper arm, and then force the first clamp ring 1 and the second clamp ring 4 inward to clamp the clamp on the upper arm to complete the wearing of the clamp; when it needs to be removed, press the operating unit downward, the first clamp ring 1 and the second clamp ring 4 are extended outward, and the diameter of the clamp becomes larger, which is convenient for removing the clamp from the upper arm.

[0038] like Figure 1 , Figure 6-Figure 8 As shown, the connection between the first clamp ring 1 and the second clamp ring 4 and the upper arm is provided with a rubber strip 3. The rubber strip 3 is elastic, and when the rubber strip 3 contacts the upper arm or the upper arm exerts force, the comfort of the upper arm is significantly improved.

[0039] Finally, it should be noted that the above embodiments are only examples for the purpose of clearly explaining the present invention, and are by no means limiting of the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here, and the obvious changes or modifications derived from them still fall within the scope of protection of the present invention.

Claims

1. The upper arm clamp of the adjustable receiving cavity is characterized by: The invention comprises a first clamping ring (1) and a second clamping ring (4) which are movably connected to the receiving cavity, an operating unit is arranged between the first clamping ring (1) and the second clamping ring (4), the first clamping ring (1), the second clamping ring (4) and the operating unit are connected via a spring sheet (12), and under the action of the operating unit, the spring sheet (12) drives the first clamping ring (1) and the second clamping ring (4) to move outward or inward synchronously, while the clamp is expanded or closed.

2. The upper arm clamp of the adjustable receiving cavity according to claim 1, characterized in that: The operating unit comprises a matching portion (5) and an operating portion (6) arranged inside the matching portion (5) and corresponding to the matching portion; an operating end (6-1) is provided at the center of the operating portion (6), and steps (6-2) are symmetrically provided on both sides; a boss (5-4) corresponding to the operating end (6-1) is provided on the matching portion (5); a countersunk hole (5-3) for placing a spring is provided at the center of the boss (5-4); and the other end of the spring is connected to the operating end (6-1).

3. The upper arm clamp of the adjustable receiving cavity according to claim 2, characterized in that: The matching portion (5) is provided with a circular hole (5-1) connected to the operating end (6-1), and the operating end (6-1) is provided with a groove (6-3) corresponding to the circular hole (5-1), and a screw passing through the circular hole (5-1) connects the matching portion (5) and the operating end (6-1) via the circular hole (5-1) and the groove (6-3).

4. The upper arm clamp of the adjustable receiving cavity according to claim 3 is characterized in that: The groove (6-3) slides along the screw passing through the circular hole (5-1) along with the operating end (6-1).

5. The upper arm clamp of the adjustable receiving cavity according to claim 3, characterized in that: The matching portion (5) is provided with a hole (5-2) for fixing the spring sheet (12); the hole (5-2) corresponds to a fixing hole (12-1) provided on the spring sheet (12); the matching portion (5) and the spring sheet (12) are fixed via the hole (5-2) and the fixing hole (12-1).

6. The upper arm clamp of the adjustable receiving cavity according to any one of claims 1 to 5, characterized in that: The first clamping ring (1) and the second clamping ring (4) are both provided with a through hole (10), and fixing screws passing through the through holes (10) connect the first clamping ring (1) to the first adjustment plate (8), and the second clamping ring (4) to the second adjustment plate (7).

7. The upper arm clamp of the adjustable receiving cavity according to claim 6, characterized in that: The first adjustment plate (8) and the second adjustment plate (7) are both provided with a slideway (9), and the slideway (9) slides left and right along the fixing screw.

8. The upper arm clamp of the adjustable receiving cavity according to claim 7, characterized in that: The first adjustment plate (8) and the second adjustment plate (7) are symmetrically arranged on both sides of the operating end (6-1), and move left and right along the step (6-2) respectively along with the first clamping ring (1) and the second clamping ring (4) under the action of the operating unit.

9. The upper arm clamp of the adjustable receiving cavity according to claim 8, characterized in that: The first clamping ring (1) and the second clamping ring (4) are both provided with a concave hole (11), the concave hole (11) corresponding to the fixing hole (12-1) on the spring sheet (12), and the first clamping ring (1), the second clamping ring (4) and the spring sheet (12) are fixed via the concave hole (11) and the fixing hole (12-1).

10. The upper arm clamp of the adjustable receiving cavity according to claim 9, characterized in that: The first clamping ring (1) and the second clamping ring (4) are both provided with a connecting hole (2) connected to the receiving cavity.

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