A bufferable brake device for a blood purification apparatus

Abstract

The application discloses a buffering brake device for blood purification equipment, which comprises a vehicle body, a handrail assembly, a buffering brake assembly and a positioning assembly. The vehicle body comprises a vehicle plate and a wheel assembly arranged at the front and rear ends of the bottom of the vehicle plate. The handrail assembly comprises a handrail hinged to the two sides of the vehicle body, a limiting mechanism for limiting the handrail to a first state or a second state, and a guide part connected to the bottom end of the handrail. The buffering brake assembly comprises a friction mechanism connected to the guide part and capable of sliding in the opposite direction of the forward direction of the vehicle body, and a buffering locking mechanism in contact with the friction mechanism. The positioning assembly is installed at the tail end of the vehicle body and capable of positioning the buffering locking mechanism. The buffering brake device for blood purification equipment can buffer and brake the vehicle body again, reduces the labor intensity of the pushing personnel and alleviates the problem that the inertia impact of the heavy equipment causes braking difficulty.

Description

Technical Field

[0001] This invention relates to the field of transportation equipment technology, specifically to a buffered braking device for blood purification equipment. Background Technology

[0002] Currently, trolleys carrying heavy devices often require workers to drag them to a stop due to the significant inertia caused by the weight of the devices. This increases the workload for the workers. For trolleys using brake calipers, such as those used for blood purification equipment like CRRT (Continuous Renal Replacement Therapy), which typically weighs over 120 kg, the same applies. The large inertia during pushing can cause the trolley to suddenly brake and tilt forward, potentially injuring the workers or even causing it to tip over and damage the devices. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of the embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] Therefore, the purpose of this invention is to provide a buffered braking device for blood purification equipment, which buffers the vehicle body and then stops it, reducing the labor intensity of the pushers and alleviating the problem of difficulty in stopping due to the inertial impact of heavy equipment.

[0005] To address the aforementioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: A buffered braking device for a blood purification device, comprising: The vehicle body includes a body panel and wheel assemblies arranged at the front and rear ends of the bottom of the body panel; The handrail assembly includes handrails hinged to both sides of the vehicle body, a limiting mechanism for limiting the handrails to a first state or a second state, and a guide component connected to the bottom end of the handrails. A buffer brake assembly includes a friction mechanism connected to the guide member and capable of sliding along the guide member in the opposite direction to the vehicle's forward direction, and a buffer locking mechanism in contact with the friction mechanism. A positioning component is installed at the rear end of the vehicle body and can position the buffer locking mechanism. When the handrail is in the first state, the friction mechanism is separated from the ground. When the handrail is in the second state, the friction mechanism is in contact with the ground and slides along the guide component in the opposite direction of the vehicle's forward direction to drive the buffer locking mechanism to buffer and decelerate the vehicle before locking and braking the wheels to a stop.

[0006] As a preferred embodiment of the buffered braking device for a blood purification device according to the present invention, the wheel assembly includes symmetrically arranged axle seats, an axle rod installed between the two axle seats, and a wheel fixed to both ends of the axle rod and equipped with a first brake caliper.

[0007] As a preferred embodiment of the buffered braking device for blood purification equipment described in this invention, the side of the vehicle body has a first limiting hole and a second limiting hole. The handrail has a handle, and the inner wall of the handle is symmetrically provided with metal rods that can move away from or close to each other inside the handrail. A first spring is sleeved on the metal rod located inside the handle. The outer wall of the handle is provided with a pressing block with a beveled side. One end of the metal rod contacts the beveled side of the pressing block, and the other end protrudes from the handrail and is adapted to the first limiting hole and the second limiting hole.

[0008] As a preferred embodiment of the buffered braking device for blood purification equipment described in this invention, the side of the vehicle body has a lifting guide groove. The end of the handrail has an oblique guide groove; The side of the guide component has a shaft that inserts into the lifting guide groove and the inclined guide groove.

[0009] As a preferred embodiment of the buffered braking device for a blood purification device according to the present invention, the friction mechanism includes a movable plate with a guide block at the top, a friction plate connected to the bottom of the two movable plates, a first connecting rod connected to the top of the two guide blocks, and a push plate with one end perpendicularly connected to the side wall of the first connecting rod and bent vertically downward. The guide component has a groove extending from the top to the bottom, and the guide block enters from the bottom of the groove and exits from the top.

[0010] As a preferred embodiment of the buffered braking device for blood purification equipment described in this invention, the wheel assembly further includes a support seat with one end fixed to the bottom of the vehicle body and the other end sleeved on the middle position of the axle, and a slide rail is provided between the two support seats, with a shaft column in the middle of the slide rail. The buffer locking mechanism includes a rotating block sleeved on the shaft column, a second connecting rod symmetrically arranged relative to the shaft column axis and hinged at one end to the end of the rotating block, a guide rod hinged to the end of the second connecting rod and slidable relative to the slide rail, two third connecting rods hinged at one end to the middle of the guide rod, a push block sleeved on the shaft column and hinged to the third connecting rod, and a third spring disposed between the push block and the support seat. The push block has a second brake caliper that cooperates with the first brake caliper. When the first brake caliper and the second brake caliper are engaged, the wheel is braked and stops rotating.

[0011] As a preferred embodiment of the buffered braking device for a blood purification device according to the present invention, the tail end of the push block has a first triangular block. The positioning assembly includes a guide frame fixed to the rear end of the vehicle body, a longitudinal lifting rod with both ends perpendicularly passing through guide holes in the guide frame, a second triangular block disposed at the top of the longitudinal lifting rod and cooperating with the first triangular block, and a second spring sleeved on the longitudinal lifting rod and located between the first triangular block and the guide frame. When the first brake caliper and the second brake caliper are engaged, the vertical surfaces of the first triangular block and the second triangular block are in contact.

[0012] As a preferred embodiment of the buffered braking device for blood purification equipment described in this invention, a foot pedal is provided at the middle position of the longitudinal lifting rod.

[0013] As a preferred embodiment of the buffered braking device for blood purification equipment described in this invention, the bottom of the friction plate has an uneven friction surface.

[0014] As a preferred embodiment of the buffered braking device for blood purification equipment described in this invention, a support column for supporting the blood purification equipment is vertically arranged on the top of the vehicle platform.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: When the vehicle body needs to be stopped, the buffered braking device for blood purification equipment contacts the ground through the friction mechanism and slides along the guide component in the opposite direction of the vehicle body's forward movement to drive the buffer locking mechanism to buffer and decelerate the vehicle body and then lock the wheels to stop. Compared with the traditional vehicle braking device, the present invention buffers and then stops the vehicle body, reducing the labor intensity of the pusher and alleviating the problem of difficulty in stopping due to the inertial impact of heavy equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of a buffered braking device for a blood purification device according to the present invention; Figure 2 This is a partial structural diagram of a buffered braking device for a blood purification equipment according to the present invention, showing the removal of the vehicle platform. Figure 3 This is a schematic diagram of the vehicle body structure of a buffered braking device for a blood purification equipment according to the present invention; Figure 4 This is a schematic diagram of the assembly of the vehicle body and handrail components for a buffered braking device used in a blood purification device according to the present invention. Figure 5 This is a schematic diagram of the assembly of the vehicle body, limiting mechanism, and guide components of a buffered braking device for a blood purification equipment according to the present invention. Figure 6 This is a schematic diagram of the handrail assembly of a buffer brake device for a blood purification equipment according to the present invention; Figure 7 This is a schematic diagram of the assembly structure of the wheel assembly and the buffer brake assembly of a buffer brake device for a blood purification equipment according to the present invention. Figure 8 This is a schematic diagram of the assembly structure of the wheel assembly and buffer locking mechanism of a buffered braking device for a blood purification equipment according to the present invention. Figure 9 This is a schematic diagram of the assembly of a buffer locking mechanism and a positioning component for a buffered braking device in a blood purification equipment according to the present invention. Figure 10 This is a schematic diagram of the assembly structure of a buffered braking device for a blood purification device and the blood purification device according to the present invention. Detailed Implementation

[0017] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0019] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0020] This invention provides a buffered braking device for blood purification equipment, which buffers the vehicle body and then stops it, reducing the labor intensity of the pushers and alleviating the problem of difficulty in stopping due to the inertial impact of heavy equipment.

[0021] Figures 1-10 The diagram shown is a structural schematic of one embodiment of a buffered braking device for a blood purification device according to the present invention. Please refer to [link / reference]. Figure 1 The present embodiment provides a buffered braking device for a blood purification equipment, the main body of which includes a vehicle body 100, a handrail assembly 200, a buffered braking assembly 300, and a positioning assembly 400.

[0022] The vehicle body 100 includes a vehicle plate 110 and wheel assemblies 120 arranged at the front and rear ends of the bottom of the vehicle plate 110. In this embodiment, the wheel assembly 120 includes symmetrically arranged axle seats 120a, an axle rod 120b installed between the two axle seats 120a, and wheels 120c fixed at both ends of the axle rod 120b and equipped with first brake calipers 120c-1. A support column 110d for supporting the blood purification equipment is vertically arranged on the top of the vehicle plate 110.

[0023] The handrail assembly 200 includes handrails 210 hinged to both sides of the vehicle body 100, a limiting mechanism 220 that limits the handrails 210 to a first state or a second state, and a guide member 230 connected to the bottom end of the handrails 210. The guide member 230 is used to guide the movement of the buffer brake assembly 300 after it contacts the ground. In this embodiment, when the handrails 210 are in the first state, the handrails 210 drive the friction mechanism 310 to separate from the ground. When the handrails 210 are in the second state, the handrails 210 drive the friction mechanism 310 to contact the ground.

[0024] The buffer brake assembly 300 includes a friction mechanism 310 connected to the guide member 230 and capable of sliding along the guide member 230 in the opposite direction to the forward direction of the vehicle body 100, and a buffer locking mechanism 320 in contact with the friction mechanism 310. In this embodiment, after the friction mechanism 310 contacts the ground, it slides along the guide member 230 in the opposite direction to the forward direction of the vehicle body 100 and pushes the buffer locking mechanism 320 to move. At this time, the buffer locking mechanism 320 first buffers the vehicle body 100, so that the vehicle body 100 decelerates slowly. Then, when the guide member 230 pushes the buffer locking mechanism 320 to a certain position, the buffer locking mechanism 320 contacts the wheel 120c of the vehicle body 100 and locks the wheel 120c to a stop.

[0025] The positioning component 400 is installed at the rear end of the vehicle body 100 and is used to limit the buffer locking mechanism 320 after it comes into contact with the wheel 120c of the vehicle body 100.

[0026] In this embodiment, in order to achieve the limiting mechanism 220 limiting the handrail 210 in the first and second states, such as Figures 3-6 As shown, the side of the vehicle body 100 has a first limiting hole 110b and a second limiting hole 110c. The armrest 210 has a handle 210a. The inner wall of the handle 210a is symmetrically provided with metal rods 220a that can move away from or close to each other within the armrest 210. A first spring 220b is sleeved on the metal rods 220a located inside the handle 210a. The outer wall of the handle 210a is provided with a pressing block 220d with a beveled side. One end of the metal rod 220a contacts the beveled side of the pressing block 220d, and the other end passes through the armrest 210 and is adapted to the first limiting hole 110b and the second limiting hole 110c. In the pushing state, the metal rod 220a... The other end is inserted into the second limiting hole 110c. At this time, the handrail 210 is in the first state. When it is necessary to decelerate and stop the vehicle body 100, the pusher presses the pressing block 220d. At this time, the inclined surface of the pressing block 220d presses against the end of the metal rod 220a. Under the pressure of the pressing block 220d, the metal rod 220a moves away from the end of the handrail 210, so that the other end of the metal rod 220 comes out of the second limiting hole 110c. Then, the handrail 210 is pulled up and the pressing block 220d is released, so that the handrail 210 rotates upward until the end of the metal rod 220 is inserted into the first limiting hole 110b. At this time, the handrail 210 is limited to the second state.

[0027] In this embodiment, in order to enable the friction mechanism 310 to contact the ground when the handrail 210 switches from the first state to the second state, such as... Figures 3-6 As shown, the side of the vehicle body 100 has a lifting guide groove 110a, the end of the armrest 210 has an oblique guide groove 210b, and the side of the guide component 230 has a first shaft 230a inserted into the lifting guide groove 110a and the oblique guide groove 210b. During the process of the armrest 210 switching from the first state to the second state, due to the restriction of the oblique guide groove 210b and the lifting guide groove 110a, the first shaft 230a is driven to move vertically downward along the lifting guide groove 110a, which in turn drives the guide component 230 to move downward. Then the guide component 230 drives the friction mechanism 310 to move downward synchronously and contact the ground.

[0028] In this embodiment, during the transition of the handrail 210 from the first state to the second state, the guide component 230 can drive the friction mechanism 310 to move downwards synchronously to contact the ground, and cause the friction mechanism 310 to move in the opposite direction to the direction of travel of the vehicle body 100 relative to the guide component 230, such as... Figure 7 As shown, the friction mechanism 310 includes a movable plate 310a with a guide block 310a-1 at the top, a friction plate 310b connected to the bottom of the two movable plates 310a, a first connecting rod 310c connected to the top of the two guide blocks 310a-1, and a push plate 310d with one end perpendicularly connected to the side wall of the first connecting rod 310c and bent vertically downward. The guide component 230 has a groove 230b extending from the top to the bottom, and the guide block 310a-1 passes through the bottom of the groove 230b. The friction plate 310b of the friction mechanism 310 extends from the top. When the friction plate 310b contacts the ground, it remains stationary relative to the ground due to the frictional force. Meanwhile, the vehicle body 100 continues to move forward due to inertia. Therefore, the first link 310c moves within the slide groove 230b via the guide block 310a-1, moving in the opposite direction to the direction of travel of the vehicle body 100 relative to the guide component 230. Preferably, the bottom of the friction plate 310b has an uneven friction surface, which can increase the friction with the ground.

[0029] In this embodiment, in order to enable the friction mechanism 310 to move in the opposite direction to the forward direction of the vehicle body 100 relative to the guide member 230, the buffer locking mechanism 320 can be driven to buffer and decelerate the vehicle body 100 and then lock the wheels to a stop. Figure 8As shown, the wheel assembly 120 also includes a support seat 120d, one end of which is fixed to the bottom of the vehicle body 100 and the other end of which is sleeved on the middle of the axle 120b. A slide rail 130 is also provided between the two support seats 120d. The slide rail 130 has a second axle post 130a in the middle. The buffer locking mechanism 320 includes a rotating block 320a sleeved on the second axle post 130a, a second connecting rod 320b symmetrically arranged with respect to the axis of the second axle post 130a and hinged at one end to the end of the rotating block 320a, and a second connecting rod 320b hinged to the end of the second connecting rod 320b. The system includes a guide rod 320c that slides relative to the slide rail 130, two third connecting rods 320d with one end hinged to the middle of the guide rod 320c, a push block 320e sleeved on the shaft 120b and hinged to the third connecting rods 320d, and a third spring 320f disposed between the push block 320e and the support seat 120d. The push block 320e has a second brake caliper 320e-1 that cooperates with the first brake caliper 120c-1. When the first brake caliper 120c-1 and the second brake caliper 320e-1 are engaged, the wheel... When 120c is braked and stops rotating, after the friction plate 310b of the friction mechanism 310 contacts the ground, the friction plate 310b remains stationary relative to the ground due to the frictional force with the ground. The vehicle body 100 continues to move forward due to inertia. The first connecting rod 310c moves within the slide groove 230b via the guide block 310a-1. When it moves in the opposite direction to the forward direction of the vehicle body 100 relative to the guide component 230, the push plate 310d pushes the right guide slide rod 320c to move to the right. During the process of the right guide slide rod 320c moving to the right... In the process, through the action of the second link 320b and the rotating block 320a, the two guide slide rods 320c move away from each other, and at the same time, through the third link 320d, the push block 320e is driven to move closer to the wheel 120c along the shaft 120b. At the same time, the third spring 320f extends and cooperates with the friction plate 310b to hinder the forward movement of the vehicle body 100 and slow down the vehicle body 100. When the push block 320e moves along the shaft 120b to the first brake caliper 120c-1 and the second brake caliper 320e-1 engage, the wheel 120c is braked and stops rotating.

[0030] In this embodiment, to enable the first brake caliper 120c-1 and the second brake caliper 320e-1 to be positioned when engaged, such as... Figure 9As shown, the push block 320e has a first triangular block 320e-2 at its tail end. The positioning assembly 400 includes a guide frame 410 fixed to the tail end of the vehicle body 100, a longitudinal lifting rod 420 with both ends perpendicularly passing through guide holes in the guide frame 410, a second triangular block 440 disposed at the top of the longitudinal lifting rod 420 and cooperating with the first triangular block 320e-2, and a second spring 430 sleeved on the longitudinal lifting rod 420 and located between the first triangular block 320e-2 and the guide frame 410. When the push block 320e approaches the wheel 120c along the shaft 120b, the inclined surface of the first triangular block 320e-2 and the inclined surface of the second triangular block 440 are in contact and press against the second triangular block 440. At this time, the longitudinal lifting rod 420 will move down along the guide frame 410, and the second spring 430 will be compressed. When the first triangular block 320e-2 passes the second triangular block 440, the second spring 430 will be compressed. At 40°, the first brake caliper 120c-1 and the second brake caliper 320e-1 are engaged, and the vertical surfaces of the first triangular block 320e-2 and the second triangular block 440 are in contact, positioning the first brake caliper 120c-1 and the second brake caliper 320e-1 so that they do not disengage. When it is necessary to release the positioning of the first brake caliper 120c-1 and the second brake caliper 320e-1, simply press down on the longitudinal lifting rod 420. At this time, the first triangular block 320e-2 and the second triangular block 440 separate, and the first brake caliper 120c-1 and the second brake caliper 320e-1 are not restricted by the positioning component 400. Preferably, in this embodiment, a foot pedal 420a is provided at the middle position of the longitudinal lifting rod 420 to facilitate pressing the longitudinal lifting rod 420.

[0031] Combination Figures 1-10 This embodiment of a buffered braking device for a blood purification device involves a handrail 210 in a first state during the initial movement of the vehicle body 100 by the operator. When the vehicle body 100 needs to be stopped, the handrail 210 is first switched from the first state to the second state by the limiting mechanism 220. When the handrail 210 is in the second state, the friction mechanism 310 on the buffered braking assembly 300 contacts the ground. Then, it moves along the guide component 230 in the opposite direction of the vehicle body 100's forward direction and drives the buffer locking mechanism 320 to buffer and decelerate the vehicle body 100 before locking and stopping the wheels. When the wheels are locked and stopped, the positioning component 400 locks and positions the buffer locking mechanism 320 and the wheels, completing the stopping of the vehicle body 100. Compared with traditional vehicle braking devices, this invention reduces the labor intensity of the operator and alleviates the problem of difficulty in stopping heavy equipment due to inertial impact by buffering and then stopping the vehicle body.

[0032] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, as long as there is no structural conflict, the features in the disclosed embodiments can be combined with each other in any manner. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A buffered braking device for a blood purification device, characterized in that, include: The vehicle body (100) includes a vehicle panel (110) and wheel assemblies (120) disposed at the front and rear ends of the bottom of the vehicle panel (110). The armrest assembly (200) includes armrests (210) hinged to both sides of the vehicle body (100), a limiting mechanism (220) that limits the armrests (210) to a first state or a second state, and a guide member (230) connected to the bottom end of the armrests (210). The buffer brake assembly (300) includes a friction mechanism (310) connected to the guide member (230) and slidable in the opposite direction of the direction of travel of the guide member (230) toward the vehicle body (100), and a buffer locking mechanism (320) in contact with the friction mechanism (310). A positioning component (400) is installed at the rear end of the vehicle body (100) and can position the buffer locking mechanism (320); When the handrail (210) is in the first state, the friction mechanism (310) is separated from the ground. When the handrail (210) is in the second state, the friction mechanism (310) contacts the ground and moves along the guide member (230) in the opposite direction of the vehicle body (100) to drive the buffer locking mechanism (320) to buffer and decelerate the vehicle body (100) and then lock the wheels to stop. The wheel assembly (120) includes symmetrically arranged axle seats (120a), an axle rod (120b) installed between the two axle seats (120a), and a wheel (120c) fixed to both ends of the axle rod (120b) and equipped with a first brake caliper (120c-1). The wheel assembly (120) also includes a support seat (120d) with one end fixed to the bottom of the vehicle body (100) and the other end sleeved on the middle position of the axle (120b). A slide rail (130) is also provided between the two support seats (120d), and the middle of the slide rail (130) has a second axle post (130a). The buffer locking mechanism (320) includes a rotating block (320a) sleeved on the second shaft (130a), a second connecting rod (320b) symmetrically arranged relative to the axis of the second shaft (130a) and hinged at one end to the end of the rotating block (320a), a guide rod (320c) hinged to the end of the second connecting rod (320b) and slidable relative to the slide rail (130), two third connecting rods (320d) hinged at one end to the middle of the guide rod (320c), and a buffer locking mechanism (320a) sleeved on the second shaft (130a). The push block (320e) is hinged to the axle (120b) and the third link (320d), and a third spring (320f) is disposed between the push block (320e) and the support seat (120d). The push block (320e) has a second brake caliper (320e-1) that cooperates with the first brake caliper (120c-1). When the first brake caliper (120c-1) and the second brake caliper (320e-1) are engaged, the wheel (120c) is braked and stops rotating.

2. A buffered braking device for a blood purification device according to claim 1, characterized in that, The side of the vehicle body (100) has a first limiting hole (110b) and a second limiting hole (110c). The handrail (210) has a handle (210a). The inner wall of the handle (210a) is symmetrically provided with metal rods (220a) that can move away from or close to each other within the handrail (210). A first spring (220b) is sleeved on the metal rods (220a) located inside the handle (210a). The outer wall of the handle (210a) is provided with a pressing block (220d) with a beveled side. One end of the metal rod (220a) contacts the beveled side of the pressing block (220d), and the other end passes through the handrail (210) and is adapted to the first limiting hole (110b) and the second limiting hole (110c).

3. A buffered braking device for a blood purification device according to claim 1, characterized in that, The side of the vehicle body (100) has a lifting guide groove (110a). The end of the handrail (210) has an oblique guide groove (210b). The guide component (230) has a first shaft (230a) on its side that is inserted into the lifting guide groove (110a) and the inclined guide groove (210b).

4. A buffered braking device for a blood purification device according to claim 1, characterized in that, The friction mechanism (310) includes a movable plate (310a) with a guide block (310a-1) on the top, a friction plate (310b) connected to the bottom of the two movable plates (310a), a first connecting rod (310c) connected to the top of the two guide blocks (310a-1), and a push plate (310d) with one end perpendicularly connected to the side wall of the first connecting rod (310c) and bent vertically downward. The guide component (230) has a groove (230b) extending from the top to the bottom, and the guide block (310a-1) enters from the bottom of the groove (230b) and exits from the top.

5. A buffered braking device for a blood purification device according to claim 1, characterized in that, The tail end of the pusher (320e) has a first triangular block (320e-2). The positioning assembly (400) includes a guide frame (410) fixed to the rear end of the vehicle body (100), a longitudinal lifting rod (420) with both ends perpendicularly passing through guide holes in the guide frame (410), a second triangular block (440) disposed at the top of the longitudinal lifting rod (420) and cooperating with the first triangular block (320e-2), and a second spring (430) sleeved on the longitudinal lifting rod (420) and located between the first triangular block (320e-2) and the guide frame (410). When the first brake caliper (120c-1) and the second brake caliper (320e-1) engage, the vertical surfaces of the first triangular block (320e-2) and the second triangular block (440) come into contact.

6. A buffered braking device for a blood purification device according to claim 5, characterized in that, A foot pedal (420a) is provided at the middle position of the longitudinal lifting rod (420).

7. A buffered braking device for a blood purification device according to claim 4, characterized in that, The bottom of the friction plate (310b) has an uneven friction surface.

8. A buffered braking device for a blood purification device according to claim 1, characterized in that, The top of the vehicle platform (110) is vertically provided with a support column (110d) to support the blood purification equipment.

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