Supporting bracket

Abstract

The invention discloses a supporting bracket which effectively solves the problems that an existing bed baffle is single in function, and a walking aid is not easy to store. Comprising an adjusting box and a track block, swing blocks are hinged to the front end and the rear end of the adjusting box respectively, supporting legs are fixed to the left side and the right side of the lower end of each swing block respectively, and receding grooves are formed in the inner ends of the swing blocks; the front side and the rear side of the track block are slidably connected with sliding blocks correspondingly, the left ends of the sliding blocks are rotatably connected with inserting rods, the lower ends of the sliding blocks are hinged to connecting rods, the lower ends of the two connecting rods are hinged to a pedal, and a groove is formed in the pedal. The lower end of the adjusting box can be inserted into the groove; operation of medical staff is facilitated, and the use requirements of patients of different heights and sickbeds of different heights can be met.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary equipment, in particular to a supporting bracket. Background Art

[0002] Patients with neurological diseases in the Department of Neurology require different care methods depending on their condition. Patients with impaired consciousness, hemiplegia, Parkinson's disease, or epileptic seizures require bed guards to prevent them from falling out of bed. Patients with visual impairments, paralysis, Parkinson's disease, cognitive impairment, and the elderly should be protected from bruises, burns, falls, and loss, and should not be allowed to go out alone. However, existing bed guards have a limited function and can only provide a simple barrier. Furthermore, since bed guards are easily adjustable and can be operated by patients themselves, patients may drop the bed guards themselves and then leave the bed alone, increasing the risk of loss and posing a significant safety hazard to patients. In addition, patients with chronic degenerative diseases are usually encouraged to get out of bed and do activities such as slow walking to ensure their body functions. However, most of these patients have limited mobility and usually need to use walkers for walking assistance and need special care. However, existing walkers are large in size, and for wards with limited space, how to store them when not in use becomes a problem. What's more, some patients spend a long time in bed, and the time a walker is not used is much longer than the time it is used. How to store them properly without exacerbating the chaos in the ward becomes a problem. Summary of the Invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a support bracket, which effectively solves the problem that the existing bed guard has a single function and is difficult to store the walker.

[0004] The technical solution is that the present invention includes an adjustment box in the shape of a letter "卩" and a track block in the front and rear directions. The front and rear ends of the adjustment box are respectively hinged with swing blocks. The left and right sides of the lower end of the swing block are respectively fixed with support legs. The inner end of the swing block is provided with an inverted L-shaped clearance groove. The front and rear sides of the right end of the adjustment box are respectively slidably connected with a concave stabilizing rod with a notch downward. The upper end of the stabilizing rod is fixedly connected to the adjustment box via a compression spring. The opposite ends of the two stabilizing rods can be respectively inserted into the clearance grooves on their corresponding sides and their outer surfaces are lower ends toward the side of the adjustment box. The inclined inclined surface, when the stabilizing rod is inserted into the yield groove, the adjustment box, the stabilizing rod and the swing block form a right triangle, the swing block is slidably connected to an L-shaped top block located below the stabilizing rod, the upper end surface of the top block can contact the lower end surface of the stabilizing rod, the swing block is slidably connected to a push block, the left end surface of the push block is an inclined surface at the lower left and upper right and can contact the lower end of the top block, the front and rear sides of the track block are respectively slidably connected to sliders, the left end of the slider is rotatably connected to an insertion rod that can be inserted into the swing block, and the left end surface of the insertion rod can contact the right end surface of the push block; The lower end of the slider is hinged with a connecting rod, and the two connecting rods form an inverted eight-shape. The lower ends of the two connecting rods are hinged with a pedal, and a groove is provided on the pedal. The lower end of the adjusting box can be inserted into the groove. A pressure plate is slidably connected in the groove, and a screw is rotatably connected to the rear end of the pressure plate. The screw passes through the pedal and is threadedly connected to the pedal. The adjusting box and the swing block are respectively slidably connected to the guardrail located above them through two guide rods. A handle is fixed to the upper end of the guardrail on the swing block. The two adjacent guardrails are hingedly connected. After the lower end of the adjusting box is inserted into the groove, the guardrail moves up and down with the left and right movement of the pressure plate.

[0005] The beneficial effects of the present invention are as follows: through ingenious structural design, the bracket can be easily converted between a stable walker form and a protective bed guard form, solving the problems of traditional bed guards having a single function and walkers taking up a large space and being difficult to store. In the bed guard form, the height adjustment and control mechanism of the guardrail is located under the bed, and the patient cannot operate it by himself, which effectively prevents the patient from getting out of bed on his own and reduces the risk of getting lost; the adjustment box and the swing block are locked by plug rods, card blocks, etc., forming a stable structure that is not easy to loosen, thereby ensuring the protective effect. The structural design takes into account the convenience of height adjustment and form conversion, which is convenient for medical staff to operate and can meet the use needs of patients of different heights and beds of different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is an axonometric drawing of the present invention.

[0007] Figure 2 It is a full-section main axonometric drawing of the present invention.

[0008] Figure 3 It is a cutaway main axonometric view of the present invention.

[0009] Figure 4 It is a full-section top axonometric view of the present invention.

[0010] Figure 5 This invention Figure 4 A magnified view of the middle panel.

[0011] Figure 6 It is a cutaway left axonometric view of the present invention.

[0012] Figure 7 It is a cutaway right axonometric view of the present invention.

[0013] Figure 8 This invention Figure 7 Magnified view of B.

[0014] Figure 9 It is a fully cut-away rear axonometric view of the present invention.

[0015] Figure 10 It is an axonometric view of the present invention when it is unfolded into a bed guard state. DETAILED DESCRIPTION

[0016] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0017] Depend on Figures 1 to 10 It is given, including an adjustment box 1 in the shape of a character "卩" and a track block 2 in the front and rear directions. The front and rear ends of the adjustment box 1 are respectively hinged with a swing block 3. The left and right sides of the lower end of the swing block 3 are respectively fixed with support legs 4. The inner end of the swing block 3 is provided with an inverted L-shaped makeshift groove. The front and rear sides of the right end of the adjustment box 1 are respectively slidably connected with a concave stabilizing rod 5 with a notch downward. The upper end of the stabilizing rod 5 is fixedly connected to the adjustment box 1 through a compression spring. The opposite ends of the two stabilizing rods 5 can be respectively inserted into the makeshift grooves on their corresponding sides and their outer surfaces are inclined surfaces with the lower ends inclined toward the side of the adjustment box 1. When the stabilizing rod 5 is inserted into the yield groove, the adjusting box 1, the stabilizing rod 5 and the swing block 3 form a right triangle. The swing block 3 is slidably connected to an L-shaped top block 6 located below the stabilizing rod 5. The upper end surface of the top block 6 can contact the lower end surface of the stabilizing rod 5. The swing block 3 is slidably connected to a push block 7. The left end surface of the push block 7 is an inclined surface at the lower left and upper right and can contact the lower end of the top block 6. The front and rear sides of the track block 2 are respectively slidably connected to sliders 8. The left end of the slider 8 is rotatably connected to an insertion rod 9 that can be inserted into the swing block 3. The left end surface of the insertion rod 9 can contact the right end surface of the push block 7. The lower end of the slider 8 is hinged with a connecting rod 10, and the two connecting rods 10 form an inverted eight-shape. The lower ends of the two connecting rods 10 are hinged with a foot pedal 11, and a groove is provided on the foot pedal 11. The lower end of the adjusting box 1 can be inserted into the groove, and a pressure plate 12 is slidably connected in the groove. The rear end of the pressure plate 12 is rotatably connected to the screw 13, and the screw 13 passes through the foot pedal 11 and is threadedly connected to the foot pedal 11. The adjusting box 1 and the swing block 3 are respectively slidably connected to the guardrail 15 located above them through two guide rods 14. A handle 16 is fixed to the upper end of the guardrail 15 on the swing block 3, and the two adjacent guardrails 15 are hingedly connected. After the lower end of the adjusting box 1 is inserted into the groove, the guardrail 15 moves up and down with the left and right movement of the pressure plate 12.

[0018] In order to allow the guardrail 15 to move up and down with the left and right movement of the pressure plate 12 after the lower end of the adjusting box 1 is inserted into the groove, the adjusting box 1 is rotatably connected with a left and right axial rotating column, and two gears 17 are coaxially fixed on the rotating column. The diameter of the gear 17 on the left is larger than the diameter of the gear 17 on the right. The lower end of the adjusting box 1 is slidably connected with an adjusting rod 18, and the left end face of the adjusting rod 18 is an inclined surface that is upper left and lower right and can contact the pressure plate 12. The rear end of the adjusting rod 18 is fixed with a plurality of teeth 19 distributed in the up and down direction and meshing with the gear 17 on the right. The upper end of the adjusting box 1 is slidably connected with a rack 20 located to the left of the adjusting rod 18 and the upper end of which is fixedly connected to the guardrail 15. The rack 20 meshes with the gear 17 on the left.

[0019] In order to facilitate the fixation of the position of the guardrail 15 and thus facilitate the use of patients of different heights, the left end of the adjustment box 1 is threadedly connected to a threaded knob 21 coaxial with the rotating column, and the right end of the threaded knob 21 is fixed with a friction block 22 that can contact the gear 17 on the left side. The left end of the adjustment box 1 is threadedly connected to an adjustment knob 23 located below the threaded knob 21, and the right end of the adjustment knob 23 is rotatably connected to an adjustment block 24. The adjustment block 24 is slidably connected to the adjustment box 1 and its right end can contact the inclined surface of the adjustment rod 18.

[0020] In order to prevent the stabilizing rod 5 from moving out of the clearance groove due to improper operation during walking, thereby causing the swing block 3 to swing and cause injury to the patient, a through groove 25 is provided on the stabilizing rod 5, and a card rod 26 in the shape of an inverted Chinese character and located on the inner side of the top block 6 is slidably connected to the swing block 3. The card rod 26 can be inserted into the through groove 25, and the lower end of the card rod 26 can contact the inclined surface of the push block 7. The upper end of the card rod 26 is fixedly connected to the swing block 3 via a compression spring.

[0021] In order to limit the position of the insertion rod 9 and the slider 8, thereby facilitating the insertion of the insertion rod 9 into the swing block 3, the slider 8 is provided with a through groove that passes through the left and right sides, and the left and right ends of the through groove are respectively slidably connected to the limiting balls 27. The two limiting balls 27 are connected by a compression spring. The track block 2 and the insertion rod 9 are respectively provided with limiting grooves corresponding to the limiting balls 27, and the limiting balls 27 can be inserted into the limiting grooves.

[0022] In order to limit the position of the swing block 3 and ensure that the insertion rod 9 can remain inserted into the swing block 3, the front side insertion rod 9 is slidably connected with an inverted 乚-shaped clamping block 28 that can be inserted into the swing block 3, and the rear end of the clamping block 28 is fixedly connected to the insertion rod 9 via a compression spring.

[0023] In order to facilitate fixing the track block 2 on the bed, a concave fixing plate 29 with the notch facing downward is fixed on the upper end of the track block 2. The fixing plate 29 is provided with a plurality of fixing grooves distributed along the front-to-back direction and passing through from top to bottom.

[0024] In order to ensure that the fixed rods 9 on beds of different heights can be smoothly inserted into the swing block 3, an adjusting foot 30 is provided at the lower end of the support leg 4.

[0025] When the present invention is in use, fasteners such as bolts and screws are used to fix the fixing plate 29 under the bed board so that the left end surface of the track block 2 is flush with the bedside, and the height of the adjusting feet 30 at the lower ends of the four supporting legs 4 is adjusted to ensure that the insertion rod 9 can be smoothly inserted into the swing block 3, and at the same time, the four supporting legs 4 are at the same height, which increases the stability during use. When used as a walker, in order to meet the needs of patients of different heights, the threaded knob 21 is rotated in the opposite direction to move the friction block 22 away from the gear 17, so that the gear 17 can rotate freely, and then the adjusting knob 23 is turned. The adjusting knob 23 drives the adjusting block 24 to move to the right, and the adjusting block 24 approaches and squeezes the inclined surface of the adjusting rod 18. The adjusting rod 18 moves upward under the squeezing and drives the right gear 17 to rotate counterclockwise through the teeth 19. The right gear 17 drives the left gear 17 to rotate counterclockwise through the rotating column. The left gear 17 drives the rack 20 to move upward under the meshing action, and the rack 20 drives the adjusting rod 18 to rotate counterclockwise. The guardrail 15 on the section box 1 moves upward. Since the guardrail 15 on the adjustment box 1 is hingedly connected to the guardrail 15 on the swing block 3 and the guardrail 15 on the swing block 3 swings in the front-back direction, the guardrail 15 on the swing block 3 moves upward along with the guardrail 15 on the adjustment box 1. When the handle 16 moves to a suitable position, the adjustment knob 23 is stopped from being turned. At this time, the position of the adjustment block 24 is restricted by the self-locking effect of the thread. The threaded knob 21 is turned to make the friction block 22 approach and press the gear 17 on the left side, so that the gear 17 cannot rotate, thereby achieving the height limit of the handle 16. When the patient needs to get into bed after completing the walking exercise, the patient walks to the bedside and steps on the footrest 11 to facilitate getting into bed. After the patient gets into bed, the medical staff or family members push the adjustment box 1 to insert the insertion rod 9 into the swing block 3. Since the insertion rod 9 is in a vertical state in the left and right directions at this time, and the height of the swing block 3 in the up and down directions has been adjusted by the adjusting foot 30, the insertion rod 9 can be smoothly inserted into the swing block 3. After the insertion rod 9 is inserted a certain distance, the clamping block 28 is pressed backward, the compression spring is contracted, and then the adjustment box 1 is continued to be pushed to the right. After the left end of the clamping block 28 is inserted into the swing block 3, the clamping block 28 is released. The clamping block 28 moves forward under the action of the compression spring and is inserted into the swing block 3, limiting the position of the swing block 3 so that the insertion rod 9 remains inserted into the swing block 3. When the rod 9 is inserted into the swing block 3, the left end of the rod 9 contacts the right end of the push block 7, and the push block 7 moves to the left under the push of the rod 9. Since the lower end surface of the card rod 26 is located below the lower end surface of the top block 6 at this time, the inclined surface of the push block 7 will first contact the lower end of the card rod 26 and push the card rod 26 to move upward, and the left end of the card rod 26 gradually moves out of the through groove 25, releasing the limit on the stabilizing bar 5. After the left end of the card rod 26 moves out of the through groove 25 and is located above the stabilizing bar 5, the rod 9 pushes the push block 7 to continue to move forward. When the cam 26 is in contact with the push block 7, the upper block 6 moves upward synchronously with the clamping rod 26 under the action of the push block 7. The upper end of the upper block 6 pushes the stabilizing rod 5 to move upward. After the clamping block 28 is inserted into the swing block 3, the position of the insertion rod 9 is restricted, and the insertion rod 9 stops pushing the push block 7 to move. At this time, one end of the stabilizing rod 5 is inserted into the make way groove and is located in the horizontal part of the make way groove. The clamping rod 26 is located above the stabilizing rod 5. The connection between the stabilizing rod 5 and the swing block 3 is disconnected, and the stabilizing rod 5 no longer restricts the swing of the swing block 3. The sliders 8 move away from each other, and the limiting ball 27 on the right side moves out of the limiting groove on the track block 2. Since the insertion rod 9 remains inserted into the swing block 3 under the action of the clamping block 28, and the stabilizing rod 5 no longer restricts the swing of the swing block 3, when the two sliders 8 move away from each other, the insertion rod 9 rotates and drives the swing block 3 to swing. The end of the stabilizing rod 5 inserted into the clearance groove gradually moves out of the horizontal part of the clearance groove. The two swing blocks 3 gradually swing from a parallel state to an eight-shaped shape with the left side smaller and the right side larger. At the same time, the slider 8 drives the foot pedal 11 to move upward through the connecting rod 10. The regulating box 1 gradually approaches the track block 2, and at the same time, the footrest 11 also gradually approaches the track block 2. Since the width of the groove in the left-right direction is greater than the width of the lower end of the regulating box 1 in the left-right direction, as the regulating box 1 gradually approaches the track block 2, the lower end of the regulating box 1 drives the regulating rod 18 to be inserted into the groove. When the swing block 3 swings to be in the same plane with the regulating box 1, the distance between the two sliders 8 reaches the farthest distance. At this time, the right end face of the regulating box 1 contacts the bedside, the stabilizing bar 5 is located in the notch of the fixed plate 29 under the bed board, and the lower end of the regulating box 1 and the lower end of the regulating rod 18 are both inserted into the groove and located to the right of the pressure plate 12; The threaded knob 21 is turned in the opposite direction to move the friction block 22 away from the gear 17, thereby releasing the restriction on the gear 17 and rotating the screw 13. The screw 13 drives the pressure plate 12 to move to the right. After the pressure plate 12 moves to the right for a certain distance, it contacts the inclined surface of the left end of the adjusting rod 18. The adjusting rod 18 moves upward under the pressure of the pressure plate 12 and moves the rack 20 upward through the two gears 17. The guardrail 15 moves upward synchronously, thereby shielding the bedside, thereby preventing the patient from falling out of bed. When the pressure plate 12 moves to the right to the extreme position, the lower end of the adjusting box 1 is fixed by the pressure plate 12 and the pedal, and the position of the adjusting box 1 is fixed, so that the swing block 3 and the adjusting box 1 are both kept The vertical state in the front and back directions ensures the shielding effect for the patient. At the same time, the guide rod 14 cannot be separated from the adjustment box 1 and the swing block 3, that is, the guardrail 15 has a maximum height, which prevents the patient from pulling the guardrail 15 out of the swing block 3, thereby ensuring the stability of the protection. Since the raising of the guardrail 15 is controlled by the rotation of the screw 13 located under the bed board, and due to the self-locking nature of the thread, the screw 13 will not cause the pressure plate 12 to shift when it is not rotating, and the screw 13 is located under the bed board, the patient cannot rotate it by himself, thereby reducing the situation where the patient goes out privately, reducing the risk of the patient getting lost, and improving the safety of protection; When the patient needs to get out of bed and walk, the screw rod 13 is rotated in the opposite direction to make the pressing plate 12 move away from the adjusting rod 18 and the lower end of the adjusting box 1. When the pressing plate 12 moves to the extreme position on the left, the adjusting box 1 is pulled to the left. The adjusting box 1 drives the two sliders 8 to move relative to each other through the swing block 3, and the foot pedal 11 moves downward synchronously. When the two sliders 8 gradually approach each other, they can push the sliders 8 relative to each other, so that the limiting ball 27 is inserted into the limiting groove again, thereby ensuring that the swing block 3 and the adjusting box 1 are in a vertical state. During the swinging process of the swing block 3, the inclined surface of the end of the stabilizing rod 5 gradually contacts the swing block 3 and moves upward under the action of the swing block 3, so that the end of the stabilizing rod 5 is smoothly inserted into the yield groove again, and the lower end surface of the stabilizing rod 5 contacts the upper end surface of the top block 6 again; After the swing is completed, push the block 28 backward to contact the limit of the insertion rod 9, and then move the adjustment box 1 to the left, and the push block 7 gradually moves away from the insertion rod 9. The stabilizing rod 5 is inserted into the vertical part of the give way groove under the action of the compression spring, so that the swing block 3 and the adjustment box 1 remain vertical, and the block 26 is gradually inserted into the through groove 25, thereby limiting the position of the stabilizing rod 5 to prevent the stabilizing rod 5 from slipping out of the give way groove. Turn the threaded knob 21 to make the friction block 22 squeeze the gear 17 again, thereby limiting the height of the handle 16, which is convenient for the patient to use. At this time, the patient can step on the footrest 11 to get out of bed, thereby preventing difficulty in getting out of bed and falling out of bed due to the high height of the bed board, increasing safety, and the patient can hold the handle 16 again for walking exercise after getting out of bed.

[0026] The adjusting foot 30 in the application is a prior art, and its structure and specific connection mode will not be described in detail here.

[0027] The application has the advantages of novel concept, ingenious structure, convenient operation, strong practicability, and the like. The application not only provides a basic physical barrier to prevent falling from a bed, but also ensures firmness when used as a guardrail and safety that a patient cannot unlock and lower by itself by virtue of a unique locking and unlocking mechanism (the synergistic action of the insertion rod, the clamping block, the stabilizing rod, the top block, and the push block) and a height adjustment structure (the screw rod, the pressing plate, the gear and rack, and the teeth). The application solves the problem that a traditional bed barrier can only block but can be adjusted by a patient. When a patient needs to get out of bed for exercise, the support frame can be conveniently and quickly changed into a stable walking aid form to stably support the patient. The design of the footrest facilitates the patient to get on and off the bed. When the walking aid form is placed beside the bed, the intelligent storage concept of "use and storage" is realized by converting the form (swinging into a bed barrier state and moving the guardrail upward). The structure is compact and can be combined with the bed, solving the problem that a traditional walking aid is large in size, occupies valuable ward space for long-term storage, and aggravates environmental disorder. In the bed barrier form, the lifting control (the pressing plate, the screw rod, and the gear transmission) of the guardrail is located below the bed plate, and it is difficult for the patient to operate. The screw self-locking feature (the screw rod and the footrest) ensures the absolute locking of the guardrail height in a non-operation state, eliminating the risk that the patient privately manipulates the mechanism and lowers the height of the guardrail to get out of bed. The locking structure (the clamping block locking of the insertion rod and the swinging block, the cooperation of the stabilizing rod and the accommodation slot) in the form conversion, the triangular stabilizing structure (the right-angled triangle formed by the adjustment box, the swinging block, and the stabilizing rod in the walking aid state), and the final fixation (the pressing plate and the footrest fixing the adjustment box) of the adjustment box and the swinging block in the bed barrier state all ensure the rigidity and reliability of the structure in the use state, preventing the patient from falling from the bed or falling down due to structure loosening. The stabilizing rod in the walking aid form has a locking of the clamping rod inserted into the through slot, preventing the swinging block from moving due to accidental triggering of the unlocking mechanism during walking, and increasing the safety during use. Medical staff only need to perform intuitive operations such as sliding the sliding block, adjusting the position of the footrest, and rotating the screw rod to quickly switch between the walking aid and the bed barrier forms. The linkage lifting of the footrest is simplified by the linkage mechanism and the sliding block. Whether the handle height (by adjusting the knob and the rotating column gear set) in the walking aid form or the guardrail height (by the screw rod and the pressing plate below the bed) in the bed barrier form can be conveniently and finely adjusted according to the height of the patient or the protection requirement (for example, different gear sizes are designed to achieve different lifting speed ratios), and is reliably locked by the friction block of the screw knob.

[0028] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0029] It can be seen that the use of a support bracket provided by the present invention can effectively solve the problems of the existing bed guards having a single function and being difficult to store walkers. This structure is simple to operate, easy to use, and improves space utilization.

Claims

1. A support bracket, comprising a zigzag-shaped adjustment box (1) and a track block (2) in the front-rear direction, characterized in that: The front and rear ends of the regulating box (1) are respectively hinged with swing blocks (3), and the left and right sides of the lower end of the swing block (3) are respectively fixed with support legs (4). The inner end of the swing block (3) is provided with an inverted L-shaped clearance groove. The front and rear sides of the right end of the regulating box (1) are respectively slidably connected with concave stabilizing rods (5) with the notch downward. The upper end of the stabilizing rod (5) is fixedly connected to the regulating box (1) via a compression spring. The opposite ends of the two stabilizing rods (5) can be respectively inserted into the clearance grooves on their corresponding sides and the outer surface thereof is an inclined surface with the lower end inclined toward one side of the regulating box (1). When the stabilizing rod (5) is inserted into the clearance groove, the regulating box (1) and the stabilizing rod (5) are in a state of being ... The fixed rod (5) and the swing block (3) form a right triangle, and the swing block (3) is slidably connected to an L-shaped top block (6) located below the stabilizing rod (5). The upper end surface of the top block (6) can contact the lower end surface of the stabilizing rod (5). The swing block (3) is slidably connected to a push block (7). The left end surface of the push block (7) is an inclined surface that is lower left and upper right and can contact the lower end of the top block (6). The track block (2) is slidably connected to a slider (8) on both sides. The left end of the slider (8) is rotatably connected to an insertion rod (9) that can be inserted into the swing block (3). The left end surface of the insertion rod (9) can contact the right end surface of the push block (7). The lower end of the slider (8) is hinged with a connecting rod (10), and the two connecting rods (10) form an inverted eight-shaped shape. The lower ends of the two connecting rods (10) are hinged with a foot pedal (11). The foot pedal (11) is provided with a groove. The lower end of the adjustment box (1) can be inserted into the groove. A pressure plate (12) is slidably connected in the groove. The rear end of the pressure plate (12) is rotatably connected with a screw rod (13). The screw rod (13) passes through the foot pedal (11) and is threadedly connected to the foot pedal (11). The adjustment box (1) and the swing block (3) are respectively slidably connected to a guardrail (15) located above them through two guide rods (14). A handle (16) is fixed to the upper end of the guardrail (15) on the swing block (3). The two adjacent guardrails (15) are hingedly connected. After the lower end of the adjustment box (1) is inserted into the groove, the guardrail (15) moves up and down as the pressure plate (12) moves left and right.

2. A support bracket according to claim 1, characterized in that: The regulating box (1) is rotatably connected to a left and right axial rotating column, and two gears (17) are coaxially fixed on the rotating column, the diameter of the gear (17) on the left side is larger than the diameter of the gear (17) on the right side, and the lower end of the regulating box (1) is slidably connected to an regulating rod (18), the left end face of the regulating rod (18) is an inclined surface that is upper left and lower right and can contact the pressure plate (12), and the rear end of the regulating rod (18) is fixed with a plurality of teeth (19) distributed in the up-down direction and meshing with the gear (17) on the right side, and the upper end of the regulating box (1) is slidably connected to a rack (20) located just to the left of the regulating rod (18) and fixedly connected to the guardrail (15), and the rack (20) meshes with the gear (17) on the left side.

3. The support bracket according to claim 1, characterized in that: The left end of the adjustment box (1) is threadedly connected with a threaded knob (21) coaxial with the rotating column. The right end of the threaded knob (21) is fixed with a friction block (22) that can contact the left-side gear (17). The left end of the adjustment box (1) is threadedly connected with an adjustment knob (23) located below the threaded knob (21). The right end of the adjustment knob (23) is rotatably connected with an adjustment block (24). The adjustment block (24) is slidably connected to the adjustment box (11), and its right end can contact the inclined surface of the adjustment rod (18).

4. The support bracket according to claim 1, characterized in that: A through slot (25) penetrating up and down is formed in the stabilizing rod (5). A clamping rod (26) shaped like an inverted L and located inside the top block (6) is slidably connected in the swinging block (3). The clamping rod (26) can be inserted into the through slot (25). The lower end of the clamping rod (26) can contact the inclined surface of the push block (7). The upper end of the clamping rod (26) is fixedly connected to the swinging block (3) through a compression spring.

5. The support bracket according to claim 1, characterized in that: A through groove penetrating left and right is formed in the slider (8). Limit balls (27) are slidably connected to the left and right ends of the through groove respectively. The two limit balls (27) are connected through a compression spring. Limit grooves corresponding to the limit balls (27) are formed in the track block (2) and the insertion rod (9) respectively. The limit balls (27) can be inserted into the limit grooves.

6. The support bracket according to claim 1, characterized in that: A clamping block (28) shaped like an inverted L and capable of being inserted into the swinging block (3) is slidably connected to the front-side insertion rod (9). The rear end of the clamping block (28) is fixedly connected to the insertion rod (9) through a compression spring.

7. The support bracket according to claim 1, characterized in that: The upper end of the track block (2) is fixed with a fixing plate (29) shaped like a concave with the concave opening facing downward. A plurality of fixing grooves penetrating up and down and distributed in the front-rear direction are formed in the fixing plate (29).

8. The support bracket according to claim 1, characterized in that: An adjusting foot (30) is provided at the lower end of the support leg (4).

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