Functional sandbag
By designing a functional sandbag with fixed and connecting blocks, combined with elastic bands and locking blocks, the problems of uneven force distribution and slippage of the sandbag during knee joint training are solved, achieving stability and rehabilitation effects, reducing damage, and extending service life.
Patent Information
- Application Number
- CN202422631470.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Existing sandbags, when used in knee joint rehabilitation training, result in uneven force distribution, cannot be adjusted in tightness, and are prone to slipping, affecting training effectiveness and failing to effectively assist in knee joint rehabilitation.
A functional sandbag was designed, which uses a combination of fixing blocks and connecting blocks, elastic bands and locking block structure to achieve stable connection of the sandbag, and is equipped with a protective shell, protective pad, wear-resistant layer and breathable cotton to ensure stability and comfort during use.
It achieves even force distribution on the sandbag during knee joint training, ensures stability without slipping, assists in knee joint stretching and correction, reduces secondary injuries, extends the lifespan of the sandbag, and improves breathability.
Smart Images
Figure CN223504276U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically a functional sandbag. Background Technology
[0002] The knee joint is the largest flexion joint in the body, but its shape also makes it not a perfectly stable joint. Therefore, the ligaments in the knee joint play a crucial role in maintaining its normal function and stability. Although the knee joint is primarily a flexion joint, it can still undergo slight grinding and rotation during flexion. The main functions of the knee joint are weight-bearing, load transmission, and providing a force couple for lower leg movements during exercise. The knee joint is less flexible than the hip joint, primarily performing flexion and extension movements. However, because it is located in the middle of the lower limb, between the two largest lever arms of the body, it bears significant forces, making it prone to sprains and fractures. Ligament and meniscus injuries are most common, especially during sports activities. Post-operative rehabilitation of the knee joint requires training, typically through functional exercises, muscle strengthening exercises, joint protection measures, physical therapy, and nonsteroidal anti-inflammatory drugs (NSAIDs) to promote recovery.
[0003] However, sandbags are generally used for compression to stop bleeding and aid in rehabilitation training. Ordinary sandbags are uneven in force, cannot be adjusted in tightness, and are prone to slipping. They cannot play an auxiliary role in training and may even affect the training effect and rehabilitation time. Utility Model Content
[0004] The purpose of this invention is to provide a functional sandbag to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A functional sandbag, comprising:
[0007] A first sandbag, a first fixing block is fixedly connected to the side of the first sandbag, a first elastic band is provided on the side of the first fixing block, a second fixing block is fixedly connected to the side of the first elastic band, and a second sandbag is fixedly connected to the side of the second fixing block.
[0008] The locking block has a slot at its front end and slots on both sides, with the slot communicating with the slots.
[0009] A connecting block has a sliding groove at its front end, a spring on the inner side of the sliding groove, an insert block fixedly connected to the side of the spring, and a locking block fixedly connected to the end of the insert block away from the spring.
[0010] Preferably, there are two first elastic bands, and the two first elastic bands are symmetrically distributed on the side of the first fixing block.
[0011] Preferably, a second elastic band is provided on the side of the second sandbag away from the second fixing block, and two second elastic bands are provided, and the two second elastic bands are axially symmetrically distributed on the side of the second sandbag.
[0012] Preferably, a first binding point is provided on the side of the second elastic band away from the second sandbag, and the locking block is provided inside the first binding point.
[0013] Preferably, a third elastic band is provided on the side of the first sandbag away from the first fixing block, and two third elastic bands are provided, and the two third elastic bands are axially symmetrically distributed on the side of the first sandbag.
[0014] Preferably, the third elastic band has a second binding point on the side away from the first sandbag, and the connecting block is provided inside the second binding point.
[0015] Preferably, there are two slides, and the two slides are symmetrically distributed at the front end of the connecting block.
[0016] Preferably, the slot is adapted to the insert block, and the card slot is adapted to the card block.
[0017] Preferably, the bottom of the second sandbag is provided with a wear-resistant layer, and the top of the second sandbag is provided with breathable cotton.
[0018] Preferably, the top of the first sandbag is provided with a protective shell, and the bottom of the first sandbag is provided with a protective pad.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] This invention features a fixing block and a connecting block. A third elastic band is attached to the side of the first sandbag, and a connecting block is mounted on the third elastic band. An insert block is mounted on the connecting block, and the insert block is fixed to the locking block via a slot. This facilitates easy installation and removal by the user. Because the first and second sandbags are connected by the elastic band, it not only stabilizes the sandbags and prevents them from falling, but also does not affect the patient's movement. Furthermore, using the sandbags to compress the knee joint can achieve stretching and correction, thus aiding knee joint rehabilitation. The protective shell, protective pad, wear-resistant layer, and breathable cotton prevent the knee joint from impacting hard objects and causing secondary damage during exercise. The wear-resistant layer prevents excessive wear on the sandbag when the knee is bent, thus extending its lifespan. The breathable cotton provides ventilation. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0022] Figure 2 This is a schematic diagram of the disassembled structure of the fixing block and connecting block of this utility model;
[0023] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;
[0024] Figure 4 This is a side view of the three-dimensional structure of the present invention;
[0025] Figure 5 This is a three-dimensional structural diagram of the connection between the first and second sandbags of this utility model;
[0026] Figure 6 This is a top-view three-dimensional structural diagram of the present invention.
[0027] In the diagram: 1. First sandbag; 2. First fixing block; 3. First elastic band; 4. Second fixing block; 5. Second sandbag; 6. Second elastic band; 601. First restraint point; 7. Locking block; 701. Slot; 702. Card slot; 8. Third elastic band; 801. Second restraint point; 9. Connecting block; 901. Slide groove; 902. Spring; 903. Insert block; 904. Card block; 10. Protective shell; 11. Protective pad; 12. Wear-resistant layer; 13. Breathable cotton. Detailed Implementation
[0028] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings and examples.
[0029] Example 1:
[0030] Please see Figures 1 to 6 This utility model provides a technical solution: a functional sandbag, comprising:
[0031] A first sandbag 1, a first fixing block 2 is fixedly connected to the side of the first sandbag 1, a first elastic band 3 is provided on the side of the first fixing block 2, a second fixing block 4 is fixedly connected to the side of the first elastic band 3, and a second sandbag 5 is fixedly connected to the side of the second fixing block 4.
[0032] The locking block 7 has a slot 701 at its front end and slots 702 on both sides, and the slot 701 communicates with the slots 702.
[0033] The connecting block 9 has a sliding groove 901 at its front end, a spring 902 on the inner side of the sliding groove 901, an insert block 903 fixedly connected to the side of the spring 902, and a locking block 904 fixedly connected to the end of the insert block 903 away from the spring 902.
[0034] The first sandbag 1 is provided with a third elastic band 8 on its side via the locking block 7 and the connecting block 9. The third elastic band 8 is provided with a connecting block 9, and the connecting block 9 is provided with an insert block 903. The insert block 903 is inserted and fixed into the slot 701 on the locking block 7. When disassembling, the insert block 903 is pressed, and the insert block 903 drives the spring 902 to retract inward, thereby causing the locking block 904 to disengage from the slot 702, which is convenient for users to install and disassemble.
[0035] Example 2:
[0036] like Figure 2-4 As shown, the functional sandbag disclosed in Embodiment 2 of this utility model has a structure that is basically the same as that in Embodiment 1, except that:
[0037] Two elastic bands 3 are provided, and the two elastic bands 3 are symmetrically distributed on the side of the first fixing block 2.
[0038] The second sandbag 5 is provided with a second elastic band 6 on the side away from the second fixing block 4. There are two second elastic bands 6, and the two second elastic bands 6 are symmetrically distributed on the side of the second sandbag 5.
[0039] The second elastic band 6 has a first binding point 601 on the side away from the second sandbag 5, and the locking block 7 is provided inside the first binding point 601.
[0040] The first sandbag 1 is provided with a third elastic band 8 on the side away from the first fixing block 2. There are two third elastic bands 8, and the two third elastic bands 8 are symmetrically distributed on the side of the first sandbag 1.
[0041] The third elastic band 8 has a second binding point 801 on the side away from the first sandbag 1, and the connecting block 9 is provided inside the second binding point 801.
[0042] Two slide grooves 901 are provided, and the two slide grooves 901 are axially symmetrically distributed at the front end of the connecting block 9.
[0043] The slot 701 is adapted to the insert block 903, and the card slot 702 is adapted to the card block 904.
[0044] The first elastic band 3 connects the first sandbag 1 and the second sandbag 5 through two first elastic bands 3. This not only stabilizes the sandbags so they don't fall off, but also doesn't affect the patient's movement. At the same time, using the sandbags to compress the knee joint can achieve stretching and correction, which is beneficial to knee joint rehabilitation.
[0045] Example 3:
[0046] like Figure 5-6As shown, the functional sandbag disclosed in Embodiment 3 of this utility model has a structure that is basically the same as that in Embodiment 2, except that:
[0047] The bottom of the second sandbag 5 is provided with a wear-resistant layer 12, and the top of the second sandbag 5 is provided with breathable cotton 13.
[0048] The first sandbag 1 has a protective shell 10 on its top and a protective pad 11 on its bottom.
[0049] Through the protective shell 10, protective pad 11, abrasion-resistant layer 12 and breathable cotton 13, the protective shell 10 and protective pad 11 prevent the user's knee joint from hitting hard objects and causing secondary damage during exercise. The abrasion-resistant layer 12 prevents the sandbag from being excessively worn when the knee joint is bent, thus affecting its lifespan. The breathable cotton 13 serves to allow for ventilation.
[0050] The specific solution is as follows: When the user needs to perform rehabilitation training, the plug 903 on the connecting block 9 is inserted into the slot 701. When the locking block 904 is locked into the slot 702, the first sandbag 1 and the second sandbag 5 are fixed. When disassembling, by pressing the plug 903, the plug 903 drives the spring 902 to contract inward, thereby causing the locking block 904 to disengage from the slot 702, which facilitates the user's installation and disassembly. The first sandbag 1 and the second sandbag 5 are connected by two first elastic bands 3, which not only stabilizes the sandbags and prevents them from falling, but also does not affect the patient's movement. At the same time, using the sandbags to compress the knee joint can achieve stretching and correction, which is beneficial to the knee joint rehabilitation. Through the protective shell 10, protective pad 11, wear-resistant layer 12 and breathable cotton 13, the protective shell 10 and protective pad 11 prevent the knee joint from hitting hard objects and causing secondary damage when the user exercises. The wear-resistant layer 12 prevents the sandbag from being excessively worn when the knee joint is bent, thus affecting its lifespan. The breathable cotton 13 provides ventilation.
[0051] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0052] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A functional sandbag, characterized in that, include: A first sandbag (1) is fixedly connected to a first fixing block (2) on its side. A first elastic band (3) is provided on the side of the first fixing block (2). A second fixing block (4) is fixedly connected to the side of the first elastic band (3). A second sandbag (5) is fixedly connected to the side of the second fixing block (4). The locking block (7) has a slot (701) at its front end and slots (702) on both sides, and the slot (701) and the slot (702) are connected. A connecting block (9) is provided with a sliding groove (901) at its front end. A spring (902) is provided on the inner side of the sliding groove (901). An insert (903) is fixedly connected to the side of the spring (902). A locking block (904) is fixedly connected to the end of the insert (903) away from the spring (902).
2. The functional sandbag according to claim 1, characterized in that, The first elastic band (3) is provided in two parts, and the two first elastic bands (3) are symmetrically distributed on the side of the first fixing block (2).
3. The functional sandbag according to claim 1, characterized in that, The second sandbag (5) is provided with a second elastic band (6) on the side away from the second fixing block (4). There are two second elastic bands (6), and the two second elastic bands (6) are symmetrically distributed on the side of the second sandbag (5).
4. A functional sandbag according to claim 3, characterized in that, The second elastic band (6) has a first binding point (601) on the side away from the second sandbag (5), and the locking block (7) is provided inside the first binding point (601).
5. A functional sandbag according to claim 1, characterized in that, The first sandbag (1) is provided with a third elastic band (8) on the side away from the first fixing block (2). There are two third elastic bands (8), and the two third elastic bands (8) are symmetrically distributed on the side of the first sandbag (1).
6. A functional sandbag according to claim 5, characterized in that, The third elastic band (8) has a second binding point (801) on the side away from the first sandbag (1), and the connecting block (9) is provided inside the second binding point (801).
7. A functional sandbag according to claim 1, characterized in that, Two slides (901) are provided, and the two slides (901) are axially symmetrically distributed at the front end of the connecting block (9).
8. A functional sandbag according to claim 1, characterized in that, The slot (701) is adapted to the insert (903), and the card slot (702) is adapted to the card block (904).
9. A functional sandbag according to claim 1, characterized in that, The bottom of the second sandbag (5) is provided with a wear-resistant layer (12), and the top of the second sandbag (5) is provided with breathable cotton (13).
10. A functional sandbag according to claim 1, characterized in that, The first sandbag (1) is provided with a protective shell (10) on the top and a protective pad (11) on the bottom.