A linkage type medical bed brake device

Abstract

The utility model belongs to the field of medical apparatus and instruments especially is a kind of linkage medical sickbed braking device, four supporting legs of fixed connection in the lower end surface of bed body are included, two connecting frames of left-right symmetry are fixedly connected between supporting leg, gear of fixed connection in round tank is located in rotating shaft, and trundle is fixedly connected in rotating shaft lower end surface, two hard plastic plates of left-right symmetry are all slidably connected in connecting frame, and four hard plastic thin plates of hard plastic plate clamping can be connected are fixedly connected in moving plate, and hard plastic plate all is fixedly connected with clamping block, clamping block can be connected with gear, and trundle is locked, to move moving plate by foot, and hard plastic thin plate on moving plate can be moved and clamped to hard plastic plate, cooperate the second spring of compression and carry out the limit, simultaneously, the movement of moving plate can push clamping block and gear clamping, simultaneously, four trundles are locked, avoid the problem that some trundle is not fixed completely and slides due to misoperation.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically a linkage-type medical bed braking device. Background Technology

[0002] Currently, most hospital beds use independent bed leg locking devices, meaning each bed leg is equipped with a separate brake pedal or knob. Medical staff must operate all four brakes sequentially to ensure the bed is fully secured. While this design is adequate for routine care, it is inefficient and time-consuming during emergency rescues, transport, or critical moments, potentially delaying treatment. Furthermore, in a panic, incomplete or missed locks may occur, causing the bed to slide and increasing the risk of patient falls or collisions.

[0003] Therefore, a device is needed that can lock all four casters simultaneously through convenient operation, and can also unlock all four casters quickly at the same time. In case of emergency, transfer or emergency rescue, the casters can be quickly unlocked to move the hospital bed. Thus, a linkage-type medical bed braking device is needed to replace the existing hospital bed caster locking device. Utility Model Content

[0004] The purpose of this invention is to provide a linkage-type medical bed braking device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a linkage-type medical bed braking device, comprising four support legs fixedly connected to the lower end face of the bed body, two symmetrical connecting frames fixedly connected between the support legs, and a circular groove provided at the bottom of each support leg. A bearing fixedly connected to the support leg is provided on the lower side of each circular groove, and a rotating shaft is rotatably connected to the bearing. A gear located within the circular groove is fixedly connected to the rotating shaft, and a caster is fixedly connected to the lower end face of the rotating shaft. The interior of each connecting frame communicates with the circular groove, and two symmetrical hard plastic plates are slidably connected within each connecting frame. A movable plate passing through the connecting frame is provided between the two connecting frames, and four thin hard plastic plates capable of engaging with the hard plastic plates are fixedly connected to the movable plate. Each hard plastic plate has a left... The rigid plastic plate has two symmetrical grooves on the right. Each groove is fixedly connected to a second limiting rod located within the groove. The second limiting rod is slidably connected to the connecting frame. Two symmetrical second springs are fixedly connected between the connecting frame and the rigid plastic plate. The second springs are coaxially aligned with the second limiting rods. Each rigid plastic plate is fixedly connected to a locking block. The locking block can engage with the gear to lock the casters. By pushing the moving plate with the foot, the rigid plastic sheet on the moving plate can be moved and locked into the rigid plastic plate, where it is limited by the compressed second spring. Simultaneously, the movement of the moving plate can push the locking block to engage with the gear, locking all four casters and preventing slippage due to misoperation.

[0006] Preferably, the upper end face of the connecting frame on the left side is fixedly connected to two symmetrical side plates, and a rotating shaft is rotatably connected between the side plates. A curved plate is fixedly connected to the rotating shaft. A square hole is provided on the left side of the movable plate, and the bottom of the curved plate extends into the square hole. A torsion spring coaxially aligned with the rotating shaft is fixedly connected between the curved plate and the side plate. Thus, in the locked state, stepping down on the curved plate will cause the movable plate to move to the left by rotating and moving the curved plate downward. This, in conjunction with the second spring, will drive the hard plastic plate to move, and at the same time, unlock the four casters. This allows for quick unlocking of the casters and movement of the hospital bed during emergency rescue, transport, or emergency treatment.

[0007] Preferably, the movable plate is fixedly connected to two sets of connecting blocks symmetrically arranged front and rear, and the connecting frame is fixedly connected to two first limiting rods symmetrically arranged front and rear. The first limiting rods are slidably connected to the connecting blocks, thereby improving the stability of the movable plate's movement.

[0008] Preferably, a first spring is fixedly connected between the connecting blocks on the left side and between the connecting frame on the left side. The first spring is coaxially aligned with the first limiting rod. The first spring limits the first spring, so that the moving plate moves to the left and moves as far as between the left end face of the right hard plastic plate and the left end face of the right connecting frame.

[0009] Preferably, the rigid plastic plate and the rigid plastic sheet, while ensuring a certain degree of hardness, have good deformation ability to prevent the moving plate from getting stuck when moving, and the moving distance of the rigid plastic plate is relatively short, slightly greater than the tooth height of the gear.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This utility model incorporates gears, a movable plate, and a hard plastic plate. By pushing the movable plate with a foot, the movable plate is moved to the right, causing it to push the two hard plastic plates away from each other. The thin hard plastic plate is then locked into the hard plastic plate for positioning. Simultaneously, the locking block engages with the gear, locking all four casters at the same time. This prevents slippage caused by accidental operation that could result in a caster not being fully secured.

[0012] This utility model incorporates a curved plate, square holes, and torsion springs. By stepping on the curved plate, the curved plate moves the movable plate to the left. The compressed second spring then moves the hard plastic plate and the locking block, releasing the lock on the casters. In conjunction with the first spring, the movable plate is limited, allowing it to move as far as the left end face of the right hard plastic plate and the left end face of the right connecting frame. This enables the simultaneous unlocking of all four casters, facilitating quick unlocking of the casters and movement of the hospital bed during emergency rescue, transport, or critical care. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0014] Figure 2 for Figure 1 Top view;

[0015] Figure 3 for Figure 2 A schematic diagram of the AA cross-section;

[0016] Figure 4 for Figure 2 BB cross-sectional diagram;

[0017] Figure 5 for Figure 3 A magnified view of a portion of the image;

[0018] Figure 6 for Figure 4 A magnified view of a portion of the image;

[0019] Figure 7This is a three-dimensional cross-sectional schematic diagram of the connecting frame of this utility model;

[0020] Figure 8 This is a three-dimensional schematic diagram of the snap-fit ​​block of this utility model;

[0021] Figure 9 This is a three-dimensional schematic diagram of the bent section of the present invention.

[0022] In the diagram: 100, Support leg; 101, Connecting frame; 102, Moving plate; 103, Caster; 104, Bed frame; 105, First limiting rod; 106, Connecting block; 107, First spring; 108, Rotating shaft; 109, Bent plate; 110, Hard plastic board; 111, Square hole; 112, Gear; 113, Bearing; 114, Hard plastic sheet; 115, Circular groove; 116, Groove; 117, Second limiting rod; 118, Second spring; 119, Snap-fit ​​block; 120, Side plate; 121, Rotating shaft; 122, Torsion spring. Detailed Implementation

[0023] To facilitate a better understanding of this utility model, the following examples are provided in conjunction with the accompanying drawings. These examples fall within the protection scope of this utility model, but do not limit the protection scope of this utility model.

[0024] Example 1:

[0025] Please see Figure 1-9This utility model provides a technical solution: a linkage-type medical bed braking device, including four support legs 100 fixedly connected to the lower end face of the bed body 104. Two symmetrical connecting frames 101 are fixedly connected between the support legs 100. Each support leg 100 has a circular groove 115 at its bottom. A bearing 113, fixedly connected to the support leg 100, is provided on the lower side of each circular groove 115. A rotating shaft 108 is rotatably connected to the bearing 113. A gear 112 located within the circular groove 115 is fixedly connected to the rotating shaft 108. A caster 103 is fixedly connected to the lower end face of the rotating shaft 108. The connecting frame 101 communicates with the circular groove 115. Two symmetrical hard plastic plates 110 are slidably connected within each connecting frame 101. A movable plate 102 passing through the connecting frame 101 is provided between the two connecting frames 101. Four plates that can interact with the hard plastic plates 110 are fixedly connected to the movable plate 102. The rigid plastic sheet 114 is snapped together. Each rigid plastic sheet 110 has two symmetrically arranged grooves 116. Each rigid plastic sheet 110 is fixedly connected to a second limiting rod 117 located within the groove 116. The second limiting rod 117 is slidably connected to the connecting frame 101. Two symmetrically arranged second springs 118 are fixedly connected between the connecting frame 101 and the rigid plastic sheet 110. The second springs 118 are coaxially aligned with the second limiting rods 117. Each rigid plastic sheet 110 is fixedly connected to a snap-fit ​​block 119. The locking block 119 can engage with the gear 112 to lock the caster 103. By pushing the movable plate 102 with the foot, the hard plastic sheet 114 on the movable plate 102 can be moved and locked into the hard plastic plate 110. The compressed second spring 118 provides a limit. At the same time, the movement of the movable plate 102 can push the locking block 119 to engage with the gear 112, and lock all four casters 103 to prevent slippage caused by accidental operation.

[0026] Example 2:

[0027] Please see Figure 1-9 To facilitate the release of the caster lock, a curved plate 109 and a square hole 111 are provided;

[0028] Two symmetrical side plates 120 are fixedly connected to the upper end of the connecting frame 101 on the left side. A rotating shaft 121 is rotatably connected between the side plates 120. A curved plate 109 is fixedly connected to the rotating shaft 121. A square hole 111 is provided on the left side of the moving plate 102. The bottom of the curved plate 109 extends into the square hole 111. A torsion spring 122, coaxially aligned with the rotating shaft 121, is fixedly connected between the curved plate 109 and the side plate 120. Thus, in the locked state, stepping down on the curved plate 109 will cause the moving plate 102 to move to the left by rotating and moving the curved plate 109 downward. This, in conjunction with the second spring 118, will drive the hard plastic plate 110 to move, and at the same time release the lock of the four casters 103. This allows for quick unlocking of the casters and movement of the hospital bed during emergency rescue, transport, or emergency treatment.

[0029] The movable plate 102 is fixedly connected to two sets of connecting blocks 106 symmetrically arranged in front and behind. The connecting frame 101 is fixedly connected to two first limiting rods 105 symmetrically arranged in front and behind. The first limiting rods 105 are slidably connected to the connecting blocks 106, thereby improving the stability of the movement of the movable plate 102.

[0030] A first spring 107 is fixedly connected between the connecting blocks 106 on the left side and between the connecting frame 101 on the left side. The first spring 107 is coaxially aligned with the first limiting rod 105. The first spring 107 limits the first spring 107, so that the moving plate 102 moves to the left and moves as far as between the left end face of the right hard plastic plate 110 and the left end face of the right connecting frame 101.

[0031] While ensuring a certain degree of hardness, the rigid plastic plate 110 and the rigid plastic sheet 114 have good deformation ability, which prevents the moving plate 102 from getting stuck when it moves. In addition, the moving distance of the rigid plastic plate 110 is relatively short, slightly greater than the tooth height of the gear 112.

[0032] Working principle:

[0033] Initially, each caster 103 is in a locked state. The hard plastic sheet 114 is snapped into the hard plastic sheet 110, and works with the compressed second spring 118 to limit the movement of the moving plate 102. The snap-fit ​​block 119 is snapped into the gear 112 to limit each caster 103.

[0034] When the casters need to be unlocked during emergency rescue, transport, or emergency treatment, stepping on the curved plate 109 causes it to rotate around the rotation axis 121. As the curved plate 109 rotates, it moves the movable plate 102 to the left, removing the hard plastic sheet 114 from the hard plastic plate 110. The second spring 118 moves the hard plastic plate 110, causing the locking block 119 to move and release the lock on the caster 103. This allows for quick unlocking of all four casters 103 simultaneously. The first spring 107 limits the movable plate 102, preventing it from moving as far as the left end face of the right hard plastic plate 110 and the left end face of the right connecting frame 101. After releasing the curved plate 109, the torsion spring 122 rotates the curved plate 109 back to its initial position, thus enabling quick unlocking of all four casters for emergency rescue, transport, or emergency treatment, facilitating the movement of the hospital bed.

[0035] When it is necessary to lock the four casters 103, push the moving plate 102 with your foot to engage the hard plastic sheet 114 into the hard plastic plate 110, so that the engaging block 119 engages into the gear 112, thereby quickly locking the four casters 103. The second spring 118 limits the hard plastic plate 110 to prevent loosening. At the same time, a certain amount of force is required to push the moving plate 102 to achieve the engagement, so as to avoid accidentally locking the casters 103.

[0036] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A linkage-type medical bed braking device, comprising four support legs (100) fixedly connected to the lower end face of the bed body (104), characterized in that: Two symmetrical connecting frames (101) are fixedly connected between the support legs (100), and each support leg (100) has a circular groove (115) at its bottom. A bearing (113) is fixedly connected to the support leg (100) on the lower side of the circular groove (115). A rotating shaft (108) is rotatably connected to the bearing (113). A gear (112) located in the circular groove (115) is fixedly connected to the rotating shaft (108). A caster (103) is fixedly connected to the lower end face of the rotating shaft (108). The interior of the connecting frame (101) communicates with the circular groove (115). Two symmetrical hard plastic plates (110) are slidably connected inside the connecting frame (101). A movable plate (102) passing through the connecting frame (101) is provided between the two connecting frames (101). Four movable plates (102) are fixedly connected to the movable plate (102) and can interact with the hard plastic plates (110). The rigid plastic sheet (114) is snapped together. Each rigid plastic sheet (110) has two symmetrical grooves (116). Each rigid plastic sheet (110) is fixedly connected to a second limiting rod (117) located in the groove (116). The second limiting rod (117) is slidably connected to the connecting frame (101). Each connecting frame (101) and the rigid plastic sheet (110) are fixedly connected to two symmetrical second springs (118). The second springs (118) are coaxially aligned with the second limiting rods (117). Each rigid plastic sheet (110) is fixedly connected to a snap-fit ​​block (119). The snap-fit ​​block (119) can snap into the gear (112) to lock the caster (103).

2. The linkage-type medical bed braking device according to claim 1, characterized in that: The upper end face of the connecting frame (101) on the left side is fixedly connected to two symmetrical side plates (120). A rotating shaft (121) is rotatably connected between the side plates (120). A bent plate (109) is fixedly connected to the rotating shaft (121). A square hole (111) is provided on the left side of the moving plate (102). The bottom of the bent plate (109) extends into the square hole (111). A torsion spring (122) coaxially aligned with the rotating shaft (121) is fixedly connected between the bent plate (109) and the side plate (120).

3. The linkage-type medical bed braking device according to claim 2, characterized in that: The movable plate (102) is fixedly connected to two sets of connecting blocks (106) symmetrically arranged in front and behind. The connecting frame (101) is fixedly connected to two first limiting rods (105) symmetrically arranged in front and behind. The first limiting rods (105) are slidably connected to the connecting blocks (106).

4. The linkage-type medical bed braking device according to claim 3, characterized in that: A first spring (107) is fixedly connected between the connecting blocks (106) on the left side and between the connecting frame (101) on the left side. The first spring (107) is coaxially aligned with the first limiting rod (105). The first spring (107) limits the first spring (107), so that the moving plate (102) moves to the left and moves as far as between the left end face of the right hard plastic plate (110) and the left end face of the right connecting frame (101).

5. The linkage-type medical bed braking device according to claim 4, characterized in that: While ensuring a certain hardness, the hard plastic plate (110) and the hard plastic sheet (114) have good deformation ability, which prevents the moving plate (102) from getting stuck when it moves. The hard plastic plate (110) moves a short distance, which is slightly greater than the tooth height of the gear (112) and is within the combined deformation range of the hard plastic plate (110) and the hard plastic sheet (114).

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