Magnetic resonance imaging bed parking brake assembly, method and system

Abstract

The present invention relates to a parking brake component, method and system for an magnetic resonance imaging bed, wherein the component comprises a brake handshake, a brake block and a spring block; a brake driving block is provided on the brake handshake, and a brake state releasing part is provided on the brake block; an elastic part is provided on the spring block to provide a brake elastic force to the brake block; an elastic action block cooperating with the elastic part is slidably provided on the brake block, and the elastic action block is driven by the brake handshake to move and switch between an elastic action state and a non-elastic action state with the elastic part, and when the elastic action block and the elastic part are in the elastic action state, the brake block is in a braking state, and when the brake driving block and the brake state releasing part release the braking state, the elastic action block and the elastic part are in a non-elastic action state; the braking structure of the present application reduces the correlation between the gripping force of the brake handshake and the braking force applied by the elastic part, and when the braking state is released, it will not be interfered by the braking force applied by the elastic part, making the operation more labor-saving.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic resonance imaging bed braking technology, and more particularly to a magnetic resonance imaging bed parking brake assembly, method and system. Background Art

[0002] The MRI bed is one of the components of the MRI device. When in use, the patient lies on the bed and the bed is pushed into the MRI device for MRI examination. The bed needs to be designed with a brake assembly to act on the guide rail to fix the position;

[0003] The braking force of the currently used brake components is closely related to the force exerted by the human hand during design. This results in the human hand having to output a large force throughout the entire manual operation process. Moreover, the greater the force required for braking, the greater the force exerted by the human hand, making it more laborious to use. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a magnetic resonance imaging bed parking brake assembly, a magnetic resonance imaging bed parking brake method and a magnetic resonance imaging bed parking system in response to the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A magnetic resonance imaging bed parking brake assembly is constructed, which includes a brake handshake, a brake block and a spring block; a brake drive block is provided on the brake handshake, and a brake state releasing part is provided on the brake block for cooperating with the brake drive block to release the brake state; an elastic part is provided on the spring block to provide a braking elastic force to the brake block; an elastic action block is slidably provided on the brake block to cooperate with the elastic part, and the elastic action block is driven by the brake handshake to move and switch between the elastic action state and the non-elastic action state with the elastic part, and when the elastic action block and the elastic part are in the elastic action state, the brake block is in the braking state, and when the brake drive block and the brake state releasing part release the braking state, the elastic action block and the elastic part are in the non-elastic action state.

[0007] The magnetic resonance imaging bed parking brake assembly described in the present invention is characterized in that the spring block is provided with a movable groove for the elastic action block to move, and the brake handle is provided with a first pushing block and a second pushing block that push the elastic action block to move in the movable groove, and the first pushing block and the second pushing block are respectively located on both sides of the elastic action block.

[0008] The parking brake assembly of the magnetic resonance imaging bed of the present invention, wherein the first pushing block is used to push the elastic action block to make it exit the elastic action state with the elastic member, and the second pushing block is used to push the elastic action block to make it enter the elastic action state with the elastic member;

[0009] After the first pushing block pushes the elastic action block to make it out of the elastic action state with the elastic member, the elastic action of the elastic member is transferred to the first pushing block; after the second pushing block pushes the elastic action block to make it enter the elastic action state with the elastic member, the elastic action of the elastic member is transferred to the elastic action block.

[0010] The magnetic resonance imaging bed parking brake assembly of the present invention is characterized in that the first pushing block partially extends into the movable groove, and a side surface of the extending portion and the same side surface of the elastic action block are combined to form a transition plane; the elastic member elastically acts on the transition plane.

[0011] In the magnetic resonance imaging bed parking brake assembly of the present invention, the spring block is located between the brake handle and the brake block.

[0012] The parking brake assembly of the magnetic resonance imaging bed of the present invention, wherein the brake state releasing portion is a brake releasing inclined surface, the brake block is provided with a groove for providing the brake releasing inclined surface; the spring block is provided with a through groove for the brake driving block to pass through;

[0013] The brake handle includes a handle portion, a reset spring for resetting the handle portion, a connecting portion and a mounting portion. The connecting portion is fixedly connected to the handle portion, and the connecting portion is slidably connected to the mounting portion. The brake drive block is provided on the mounting portion, and the elastic action block is driven to move by the mounting portion.

[0014] In the magnetic resonance imaging bed parking brake assembly of the present invention, the brake drive block, the brake block, the elastic member, the first push block, and the second push block are symmetrically arranged in two groups.

[0015] The MRI bed parking brake assembly of the present invention further comprises an elastic adjustment unit for adjusting the elastic force of the elastic member.

[0016] A parking brake method for an MRI bed is applied to the parking brake assembly of the MRI bed as described above, and the implementation method includes:

[0017] Brake release travel:

[0018] Manually operate the brake handshake to drive the brake driving block and the elastic action block to move. The movement of the elastic action block causes the elastic action block and the elastic member to be in a non-elastic action state. The brake driving block moves to contact the brake state releasing part on the brake block and cooperates to release the brake state.

[0019] Braking travel:

[0020] The brake handshake is reset, and the brake driving block and the elastic action block are driven to move and reset through the brake handshake. The brake driving block moves and disengages from the brake state releasing part on the brake block. The elastic action block moves so that the elastic action block and the elastic part restore the elastic action state, and the brake block is in the braking state.

[0021] A parking brake system for an MRI bed comprises an MRI bed and a cylinder body cooperating therewith, wherein the inner wall of the cylinder body is provided with a slide rail; the MRI bed is provided with the above-mentioned MRI bed parking brake assembly, and the MRI bed parking brake assembly brakes by friction with the slide rail.

[0022] The beneficial effects of the present invention are: in the brake release stage: manually operate the brake handshake, and the brake handshake drives the brake drive block and the elastic action block to move, and the movement of the elastic action block makes the elastic action block and the elastic part in a non-elastic action state, and the brake drive block moves to contact the brake state release part on the brake block and cooperate to release the brake state; in the brake braking stage: reset the brake handshake, and drive the brake drive block and the elastic action block to move and reset through the brake handshake, and the brake drive block moves and disengages from the brake state release part on the brake block, and the elastic action block moves to restore the elastic action state of the elastic part and the brake block is in a braking state; the application of the braking structure of the present application reduces the correlation between the grip force of the brake handshake and the braking force applied by the elastic part, and when the brake state is released, it will not be interfered by the braking force applied by the elastic part, making the operation more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below with reference to the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive efforts.

[0024] Figure 1 This is a schematic structural diagram of a parking brake assembly for a magnetic resonance imaging bed according to a preferred embodiment of the present invention;

[0025] Figure 2 This is an exploded view of the parking brake assembly of the magnetic resonance imaging bed according to a preferred embodiment of the present invention;

[0026] Figure 3 This is an exploded view from another angle of the parking brake assembly of the magnetic resonance imaging bed according to a preferred embodiment of the present invention;

[0027] Figure 4 This is an internal state diagram of the braking state of the parking brake assembly of the magnetic resonance imaging bed in a preferred embodiment of the present invention;

[0028] Figure 5 It is a structural diagram of the parking brake system of the magnetic resonance imaging bed according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the following will be a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work shall fall within the scope of protection of the present invention.

[0030] The parking brake assembly of the magnetic resonance imaging bed in the preferred embodiment of the present invention is as follows: Figure 1 See also Figure 2-4 , including a brake handshake 1, a brake shoe 2 and a spring block 3; a brake driving block 10 is provided on the brake handshake 1, and a brake state releasing portion 20 that cooperates with the brake driving block 10 to release the brake state is provided on the brake shoe 2; an elastic member 30 that provides a braking elastic force to the brake shoe 2 is provided on the spring block 3; an elastic action block 21 that cooperates with the elastic member 30 is slidably provided on the brake shoe 2, and the elastic action block 21 is driven by the brake handshake 1 to move and switch between the elastic action state and the elastic member 30 and the non-elastic action state, and when the elastic action block 21 and the elastic member 30 are in the elastic action state, the brake shoe 2 is in the braking state, and when the brake driving block 10 and the brake state releasing portion 20 release the braking state, the elastic action block 21 and the elastic member 30 are in the non-elastic action state;

[0031] During the brake release phase:

[0032] Manually operate the brake handshake 1, which drives the brake driving block 10 and the elastic action block 21 to move. The elastic action block 21 moves so that the elastic action block 21 and the elastic member 30 are in a non-elastic action state. The brake driving block 10 moves to contact the brake state releasing part on the brake block 2 and cooperates to release the brake state.

[0033] During the braking phase:

[0034] The brake handshake 1 is reset, and the brake driving block 10 and the elastic action block 21 are driven to move and reset through the brake handshake 1. The brake driving block 10 moves and disengages from the brake state releasing portion on the brake shoe 2. The elastic action block 21 moves so that the elastic action block 21 and the elastic member 30 restore the elastic action state, and the brake shoe 2 is in the braking state.

[0035] The application of the braking structure of the present application reduces the correlation between the grip force of the brake handle and the braking force applied by the elastic member. When the brake state is released, there will be no interference from the braking force applied by the elastic member, making the operation more labor-saving.

[0036] It should be noted that the brake drive block 10 and the brake state releasing portion 20 of the present application cooperate to release the brake state. The essence of the contact brake state is to drive the brake block to retract through the interaction between the two, and to cause contact friction between the contact and the track. Therefore, in addition to the following method of using the brake drive block to cooperate with the driving inclined surface, the brake drive block can also cooperate with the driving arc surface. The brake drive block itself can also be replaced with a rotating shaft or other forms. It can also adopt existing public cooperative structures. These will not be enumerated here one by one. Simple replacements based on such conventional or existing means fall within the scope of protection of the present application.

[0037] The elastic member 30 can be made of the Figure 4 The U-shaped spring piece in the embodiment may also adopt other existing elastic member forms, as long as it can provide elastic force. Simple replacement based on such conventional or existing means falls within the scope of protection of this application.

[0038] Regarding the reset of the brake handle 1, it should be noted that it can be achieved by using a reset spring as described below, or it can be achieved manually without providing a spring, and these are also within the scope of protection of this application; preferably, because the elastic force needs to be switched, the front end of the elastic member can be kept in an arc or spherical surface to ensure smooth switching;

[0039] Preferably, a movable groove 31 for the elastic action block 21 to move is provided on the spring block 3, and a first pushing block 11 and a second pushing block 12 are provided on the brake handshake 1 to push the elastic action block 21 to move in the movable groove 31, and the first pushing block 11 and the second pushing block 12 are respectively located on both sides of the elastic action block 21; the first pushing block 11 is used to push the elastic action block 21 to make it exit the elastic action state with the elastic member 30, and the second pushing block 12 is used to push the elastic action block 21 to make it enter the elastic action state with the elastic member 30; after the first pushing block 11 pushes the elastic action block 21 to disengage from the elastic action state with the elastic member 30, the elastic action of the elastic member is transferred to the first pushing block 11; after the second pushing block 12 pushes the elastic action block 21 to enter the elastic action state with the elastic member 30, the elastic action of the elastic member 30 is transferred to the elastic action block 21; the elastic action block is pushed back and forth by two pushing blocks to be engaged and disengaged with the spring; this implementation structure is extremely simple, low in cost, reliable, and very convenient to set up; Figure 4 The figure is only a preferred embodiment and is not intended to limit the shapes of the first pushing block and the second pushing block. Other simple changes or replacement structures based on this principle also fall within the scope of protection of this application.

[0040] Preferably, the first push block 11 partially extends into the movable groove 31, and the side surface of the extending portion and the same side surface of the elastic action block 21 are combined to form a transition plane; the elastic member 30 elastically acts on the transition plane; Figure 1 As shown, this state is the braking state. At this time, the elastic member 30 acts on the elastic action block 21. When the brake is released, the first push block 11 pushes the elastic action block 21 away from the elastic member 30. At the same time, since the side surface of the first push block 11 and the side surface of the elastic action block 21 form a transition plane, the elastic member will switch to act on the first push block 11. Similarly, when the second push block 12 pushes the elastic action block 21, the elastic member will switch to act on the elastic action block 21, thereby ensuring the smoothness of the switching.

[0041] It should be noted that the transition plane is preferably a plane, that is, the side surface of the first push block 11 is flush with the side surface of the elastic action block 21, so that the smoothest elastic action transition can be achieved; of course, it is understandable that the side surface of the first push block 11 and the side surface of the elastic action block 21 can also have a certain height difference. Under the premise that the height difference does not affect the elastic action switching of the elastic member, the purpose of the present invention can also be achieved.

[0042] Preferably, the spring block 3 is located between the brake handle 1 and the brake block 2. This position layout is more reasonable. Of course, it can be understood that this method is only a preferred implementation method and is not used to limit the layout method to this method.

[0043] Based on this position layout, it can be set that: the brake state release portion 20 is a brake release inclined surface, and the brake block 2 is provided with a setting groove 22 for the brake release inclined surface; the spring block 3 is provided with a through groove 32 for the brake driving block 10 to pass through; the brake handle 1 includes a handle portion 13, a return spring 14 for returning the handle portion, a connecting portion 15 and a mounting portion 16, the connecting portion 15 is fixedly connected to the handle portion 13, and the connecting portion 15 is slidably connected to the mounting portion 16; the brake driving block 10 is provided on the mounting portion 16, and the elastic action block 21 is driven to move by the mounting portion 16;

[0044] With this structural layout, assembly is extremely convenient; the connecting part can keep the handle part and the brake block at a required distance. At the same time, the sliding connection between the connecting part and the mounting part can reserve a certain release stroke. During the release stroke, the connecting part will not drive the mounting part to move, thereby decomposing the hand force process into two parts, one of which is not subject to force, and the other part will provide braking force. This can relax the design range of the hand grip stroke, thereby improving comfort during use.

[0045] Preferably, the MRI bed parking brake assembly further includes an elastic adjustment unit 40 for adjusting the elastic force of the elastic member 30;

[0046] In this embodiment, a setting method is provided: through the combination of a self-rotating (rotatably connected to the outside) screw 400, a screw seat 401 and a U-shaped spring piece, during adjustment, the screw seat is driven to move by rotating the screw, thereby adjusting the extrusion force on the U-shaped spring piece, and then adjusting the elastic force of the U-shaped spring piece; of course, it can be understood that the elastic adjustment unit 40 can be set as needed, and the style of the elastic adjustment unit 40 can be set accordingly according to the selected elastic part 30 style. Simple replacement based on this falls within the protection scope of this application.

[0047] Preferably, the combination of the brake drive block 10, the brake block 2, the elastic member 30, the first push block 11, and the second push block 12 can be symmetrically arranged in two groups; the screw seat 401 of the elastic adjustment unit 40 can be arranged between the two elastic members to simultaneously adjust the elastic forces of the two elastic members;

[0048] A parking brake method for an MRI bed is applied to the parking brake assembly of the MRI bed as described above, and the implementation method includes:

[0049] Brake release travel:

[0050] Manually operate the brake handshake to drive the brake driving block and the elastic action block to move. The movement of the elastic action block causes the elastic action block and the elastic member to be in a non-elastic action state. The brake driving block moves to contact the brake state releasing part on the brake block and cooperates to release the brake state.

[0051] Braking travel:

[0052] The brake handshake is reset, and the brake driving block and the elastic action block are driven to move and reset by the brake handshake. The brake driving block moves and disengages from the brake state releasing portion on the brake block. The elastic action block moves so that the elastic action block and the elastic member restore the elastic action state, and the brake block is in the braking state.

[0053] The braking method of the present application reduces the correlation between the grip force of the brake handle and the braking force applied by the elastic member. When the brake state is released, there will be no interference from the braking force applied by the elastic member, making the operation more labor-saving.

[0054] A parking brake system for a magnetic resonance imaging bed, such as Figure 5 As shown, it includes an MRI bed 5 and a cylinder 8 matched therewith, the inner wall of the cylinder 8 is provided with a slide rail 6; the MRI bed 5 is provided with the above-mentioned MRI bed parking brake assembly 7, and the MRI bed parking brake assembly 7 brakes by friction with the slide rail 6; the use of the improved MRI bed parking brake assembly can save more effort during use.

[0055] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A parking brake assembly for a magnetic resonance imaging bed, characterized in that: It includes a brake handshake, a brake block and a spring block; a brake driving block is provided on the brake handshake, and a brake state releasing part cooperating with the brake driving block is provided on the brake block to release the brake state; an elastic part is provided on the spring block to provide a brake elastic force to the brake block; an elastic action block cooperating with the elastic part is slidably provided on the brake block, and the elastic action block is driven by the brake handshake to move and switch between the elastic action state and the non-elastic action state with the elastic part, and when the elastic action block and the elastic part are in the elastic action state, the brake block is in the braking state, and when the brake driving block and the brake state releasing part release the braking state, the elastic action block and the elastic part are in the non-elastic action state.

2. The parking brake assembly of the magnetic resonance imaging bed according to claim 1, characterized in that: The spring block is provided with a movable groove for the elastic action block to move, and the brake handle is provided with a first pushing block and a second pushing block for pushing the elastic action block to move in the movable groove. The first pushing block and the second pushing block are respectively located on both sides of the elastic action block.

3. The parking brake assembly of the magnetic resonance imaging bed according to claim 2, characterized in that: The first pushing block is used to push the elastic action block to make it exit the elastic action state with the elastic member, and the second pushing block is used to push the elastic action block to make it enter the elastic action state with the elastic member; After the first pushing block pushes the elastic action block to separate it from the elastic action state with the elastic member, the elastic action of the elastic member is transferred to the first pushing block; After the second pushing block pushes the elastic action block to enter an elastic action state with the elastic member, the elastic action of the elastic member is transferred to the elastic action block.

4. The parking brake assembly of the magnetic resonance imaging bed according to claim 3, characterized in that: The first pushing block partially extends into the movable groove, and a side surface of the extending portion and a same side surface of the elastic action block are combined to form a transition plane; the elastic member elastically acts on the transition plane.

5. The parking brake assembly of the magnetic resonance imaging bed according to any one of claims 2 to 4, characterized in that: The spring block is located between the brake handshake and the brake block; the brake state release portion is a brake release inclined surface, and the brake block is provided with a setting groove for the brake release inclined surface; the spring block is provided with a through groove for the brake drive block to pass through.

6. The parking brake assembly of the magnetic resonance imaging bed according to any one of claims 1 to 4, characterized in that: The brake handle includes a handle portion, a reset spring for resetting the handle portion, a connecting portion and a mounting portion. The connecting portion is fixedly connected to the handle portion, and the connecting portion is slidably connected to the mounting portion. The brake drive block is provided on the mounting portion, and the elastic action block is driven to move by the mounting portion.

7. The MRI bed parking brake assembly according to any one of claims 2 to 4, characterized in that: The brake drive block, the brake block, the elastic member, the first pushing block, and the second pushing block are symmetrically arranged in two groups.

8. The parking brake assembly for a magnetic resonance imaging bed according to any one of claims 1 to 4, characterized in that: The magnetic resonance imaging bed parking brake assembly further includes an elasticity adjustment unit for adjusting the elastic force of the elastic member.

9. A parking brake method for an MRI bed, applied to the parking brake assembly for an MRI bed according to any one of claims 1 to 8, characterized in that: Implementation methods include: Brake release travel: Manually operate the brake handshake to drive the brake driving block and the elastic action block to move. The movement of the elastic action block causes the elastic action block and the elastic member to be in a non-elastic action state. The brake driving block moves to contact the brake state releasing part on the brake block and cooperates to release the brake state. Braking travel: The brake handshake is reset, and the brake driving block and the elastic action block are driven to move and reset through the brake handshake. The brake driving block moves and disengages from the brake state releasing part on the brake block. The elastic action block moves so that the elastic action block and the elastic part restore the elastic action state, and the brake block is in the braking state.

10. A parking brake system for a magnetic resonance imaging bed, characterized in that: It comprises an MRI bed and a cylinder matched therewith, wherein the inner wall of the cylinder is provided with a slide rail; the MRI bed is provided with an MRI bed parking brake assembly as described in any one of claims 1 to 8, and the MRI bed parking brake assembly brakes by friction with the slide rail.

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