CN111022905B

CN111022905B - Safety protection mechanism, mobile rack and DR equipment

Info

Publication number: CN111022905B
Application number: CN201911342081.2A
Authority: CN
Inventors: 郁强
Original assignee: Shanghai United Imaging Healthcare Co Ltd
Current assignee: Shanghai United Imaging Healthcare Co Ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2021-06-01
Anticipated expiration: 2039-12-23
Also published as: CN111022905A

Abstract

The invention belongs to the field of safety protection equipment, and discloses a safety protection mechanism, which comprises a loading part, a counterweight, a first connecting part and a second connecting part, wherein the loading part is used for loading a counterweight; the lock assembly comprises a first lock part, a second lock part arranged on the loading part, a first locking piece used for locking the first lock part and the second lock part, and a second locking piece capable of locking the first locking piece; when the counterweight is loaded on the loading part, the counterweight drives the second locking piece to unlock the first locking piece. The invention also discloses a mobile rack and DR equipment. Through first lock portion rigid coupling in the support body of removing the frame, loading portion rigid coupling in the linking arm of removing the frame, when not loading the counter weight, through first locking piece with first lock portion and the locking of second lock portion, the second locking piece is to the locking of first locking piece simultaneously, can lock the linking arm, prevents that the linking arm from stretching out and drawing back suddenly or the swing leads to hindering the people, has improved the security performance of removing the frame. After the counter weight is loaded, the counter weight can drive the second locking piece to unlock the first locking piece, and the movable rack can be used, so that the safety and the reliability are realized.

Description

Safety protection mechanism, mobile rack and DR equipment

Technical Field

The invention relates to the field of safety protection equipment, in particular to a safety protection mechanism, a movable rack and DR equipment.

Background

At present, a connecting arm is usually arranged on a frame which uses a spring as a power source for stretching, rotating and other movements, and the gas spring is connected to the connecting arm and used for driving the connecting arm to stretch or swing. Because the elasticity of air spring is great, under the condition that the frame does not set up the counter weight and restricts the elasticity effect of air spring, only lock the linking arm through simple hasp mode, can lead to the frame to break through the constraint of hasp locking power because of the elasticity of air spring for the linking arm stretches out and draws back suddenly or the swing, causes accident such as hindering people.

Disclosure of Invention

The invention aims to provide a safety protection mechanism and a movable rack, and aims to solve the problem of accidents such as injury and the like caused by sudden expansion or swing of a connecting arm of the conventional movable rack.

Another object of the present invention is to provide a DR apparatus including the above safety protection mechanism, which can improve the safety performance of the DR apparatus.

In order to achieve the purpose, the invention adopts the following technical scheme:

a safety protection mechanism comprising:

a loading part for loading a counterweight;

the lock assembly comprises a first lock part, a second lock part arranged on the loading part, a first locking piece used for locking the first lock part and the second lock part, and a second locking piece capable of locking the first locking piece;

when the counterweight is loaded on the loading part, the counterweight drives the second locking piece to unlock the first locking piece.

Preferably, the second locking piece comprises a locking part, a locking rod connected with the locking part and an elastic piece driving the locking part to reset;

the locking rod can be driven by the balance weight to move so as to drive the locking part to unlock the first locking part, and when the elastic part drives the locking part to reset, the locking part locks the first locking part.

Preferably, the locking part comprises a plug board rotating around a fixed hinge point, a connecting point of the locking rod and the plug board is not coincident with the fixed hinge point, and the locking rod drives the plug board to rotate when moving so as to lock or unlock the first locking part.

Preferably, the first locking member is provided with a plug groove, and the plug board can be plugged into the plug groove to lock or unlock the first locking member.

Preferably, the locking portion further includes a socket fixedly connected to the loading portion, the socket plate is rotatably connected to the socket, a rotation connection point of the socket plate and the socket forms the fixed hinge point, and the elastic member is disposed between the socket plate and the socket.

Preferably, the locking part comprises a plug connector, the locking rod is connected to the plug connector in a driving mode, and the locking rod drives the plug connector to move when moving so as to lock or unlock the first locking part.

Preferably, the locking portion further includes a rotating shaft rotating relative to the loading portion, a rotating disc fixedly sleeved on the rotating shaft, a first pin fixedly connected to one side of the rotating disc, and a second pin fixedly connected to the other side of the rotating disc, the axes of the first pin and the second pin are not coincident, the first pin is hinged to the locking rod, the second pin is hinged to the plug, and the elastic member is a torsion spring with two ends respectively connected to the rotating shaft and the loading portion.

Preferably, the first locking member is provided with a jack, and the plug can be plugged into the jack to lock or unlock the first locking member.

Preferably, one of the first locking part and the second locking part is provided with an inserting plate, the other one of the first locking part and the second locking part is provided with an inserting groove, the inserting plate is inserted into the inserting groove, and the first locking part penetrates through the inserting groove and the inserting plate to lock the first locking part and the second locking part;

or, first lock portion is equipped with first picture peg, and second lock portion is equipped with the second picture peg, first locking part passes first picture peg and the second picture peg, will first lock portion with the locking of second lock portion.

Preferably, the loading part is provided with a clamping groove, the counterweight is loaded in the clamping groove, and a limiting structure is arranged at the clamping groove and is configured to lock and unlock the counterweight.

The invention also provides a movable rack which comprises a rack body, a connecting arm and the safety protection mechanism, wherein the first locking part of the safety protection mechanism is fixedly connected to the rack body, and the loading part of the safety protection mechanism is fixedly connected to the connecting arm.

The invention also provides DR equipment which comprises a frame body, a connecting arm, a combined machine head and the safety protection mechanism, wherein one end of the connecting arm is rotatably connected to the frame body, the other end of the connecting arm is connected with the combined machine head, the combined machine head can be loaded on a loading part of the safety protection mechanism, and a first locking part of the safety protection mechanism is fixedly arranged on the frame body.

Preferably, the connecting arm is connected to a gas spring, one end of the gas spring is fixedly connected to the frame body, and the other end of the gas spring is used for driving the connecting arm to rotate relative to the frame body.

The invention has the beneficial effects that:

according to the safety protection mechanism, the first locking part is fixedly connected to the frame body of the movable frame, the loading part is fixedly connected to the connecting arm of the movable frame, when the counter weight is not loaded, the first locking part and the second locking part can be locked through the first locking part, meanwhile, the second locking part locks the first locking part, the connecting arm of the movable frame when the counter weight is not arranged can be locked, the connecting arm is prevented from being injured due to sudden stretching or swinging, and the safety performance of the movable frame is improved. And after the counter weight is loaded, the counter weight can drive the second locking piece to unlock the first locking piece, and then the movable rack can be used, so that the safety and the reliability are realized.

Drawings

FIG. 1 is a schematic view of a mobile gantry according to the present invention;

fig. 2 is a schematic perspective view of a safety protection mechanism according to a first embodiment of the present invention;

FIG. 3 is a cross-sectional view of a security mechanism according to one embodiment of the invention, shown without the first lock portion

FIG. 4 is a schematic view of a structure of the carrier portion and the first locking member according to a first embodiment of the present invention;

FIG. 5 is a schematic structural view of a first locking member according to a first embodiment of the present invention;

FIG. 6 is a schematic view of the second locking element and the first locking element according to a first embodiment of the present invention;

FIG. 7 is a schematic structural view of a second locking element according to a first embodiment of the present invention;

fig. 8 is a schematic structural view of a second locking element according to a second embodiment of the present invention.

In the figure:

1. a loading section; 11. a card slot; 12. a limiting structure; 121. a limiting plate; 122. a first spring; 13. (ii) a A groove; 14. a first part; 15. a second section;

2. a first lock portion;

3. a first locking member; 31. inserting grooves; 32. a handle;

4. a second locking member; 41. a locking portion; 411. a plugboard; 4111. a plug-in part; 412. a socket; 4121. mounting a plate; 4122. a pin shaft; 4123. an opening; 411', a plug; 412', a rotating shaft; 413', a turntable; 414', a first pin; 415', a second pin; 42. a locking lever; 43. an elastic member; 44. a push rod;

5. balancing weight; 6. inserting plates; 61. a kidney-shaped hole; 7. a slot;

10. a safety protection mechanism; 20. a frame body; 30. a connecting arm; 40. a gas spring; 50. the base is movable.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The invention provides a safety protection mechanism 10, wherein the safety protection mechanism 10 can be applied to a movable rack, the movable rack at least comprises a rack body 20 and a connecting arm 30, the connecting arm 30 is connected with a gas spring 40, and the connecting arm 30 is driven by the gas spring 40 to stretch or swing. For example, as shown in fig. 1, the moving frame includes a movable base 50, a frame body 20 disposed on the movable base 50, and a connecting arm 30 rotatably connected to the frame body 20, with a gas spring 40 disposed between the connecting arm 30 and the frame body 20. The connecting arm 30 can be driven to rotate relative to the frame 20 by the gas spring 40, so that the connecting arm 30 brings the load to a certain height for an operator to use. Specifically, the movable frame may be a medical frame, and the medical device or the medicine cassette is lifted and lowered by the connecting arm 30 to be used by medical staff.

The connecting arm 30 can be provided with the counterweight 5 as required, and the connecting arm 30 and the counterweight 5 can be fixed through the safety protection mechanism 10, and meanwhile, the connecting arm 30 can be locked through the safety protection mechanism 10, so that accidents such as injury to people due to sudden expansion or swinging of the connecting arm 30 are avoided.

It will be appreciated that the security protection mechanism 10 of the present invention may be used in other mechanisms or devices where it is desirable to lock a component.

Example one

In the embodiment, the structure of the safety protection mechanism 10 is shown in fig. 2, and the safety protection mechanism 10 includes a loading part 1 and a lock assembly, wherein the loading part 1 is used for loading the counterweight 5, and the loading part 1 can be fixed on the connecting arm 30 of the movable rack. The connecting arm 30 of the moving frame can be locked to the frame body 20 of the moving frame by the lock assembly and the loading part 1.

Referring to fig. 3 and 4, a slot 11 is formed at one end of the loading portion 1, and the slot 11 is used for loading the counterweight 5, that is, the counterweight 5 can be clamped into the slot 11. Furthermore, a limiting structure 12 may be disposed at the slot 11, and the limiting structure 12 is used for limiting the counterweight 5 in the slot 11 after the counterweight 5 is clamped into the slot 11. Optionally, as shown in fig. 3, the position-limiting structure 12 may include a position-limiting plate 121 and a first spring 122 connected to the position-limiting plate 121, a groove 13 is formed on a side wall of the slot 11, one end of the first spring 122 is fixedly connected to the bottom of the groove 13, the other end of the first spring is fixedly connected to the bottom of the position-limiting plate 121, and the position-limiting plate 121 is inserted into the groove 13. When the counterweight 5 is loaded into the slot 11, the limiting plate 121 is pressed down until the upper end surface thereof is flush with the side wall of the slot 11 provided with the groove 13, so that the counterweight 5 passes through the groove 13, and the first spring 122 is compressed; after the counterweight 5 is clamped in the groove 13, the limiting plate 121 is driven by the first spring 122 to partially extend out of the groove 13 and is attached to the side wall of the counterweight 5 to fix and limit the counterweight 5 in the clamping groove 11. When the balance weight 5 needs to be taken down, the balance weight 5 can be taken out only by pressing the limiting plate 121 downwards, and the balance weight 5 is separated from the clamping groove 11.

In this embodiment, the loading portion 1 may be provided in two parts, as shown in fig. 4, the loading portion 1 may include a first part 14 and a second part 15, wherein the first part 14 is opened with the above-mentioned slot 11, and the second part 15 is hollow and is used for placing a part of the structure of the lock assembly.

The lock assembly comprises a first lock part 2, a second lock part, a first lock part 3 and a second lock part 4, wherein:

the first locking part 2 may be fixed to the frame body 20 or other parts of the moving frame, the second locking part is disposed at one side of the second part 15 of the loading part 1, and the first locking part 2 and the second locking part cooperate to lock the two parts by the first locking part 3, so as to lock the connecting arm 30 of the moving frame to the frame body 20 or other parts.

In the present embodiment, as shown in fig. 2, the first locking portion 2 is provided with an insert plate 6, the insert plate 6 is provided with a kidney-shaped hole 61, the second locking portion is provided with a slot 7, the insert plate 6 can be inserted into the slot 7, and the first locking member 3 can pass through the slot 7 and the kidney-shaped hole 61 on the insert plate 6 to lock the first locking portion 2 and the second locking portion. It will of course be appreciated that it is also possible to provide the slot 7 in the first lock part 2 and correspondingly the insert plate 6 in the second lock part, and subsequently lock the first lock part 2 and the second lock part by the first lock part 3 passing through the slot 7 and the kidney-shaped hole 61 in the insert plate 6.

As another technical solution of this embodiment, the first locking portion 2 may be provided with a first insertion plate (not shown), the second locking portion may be provided with a second insertion plate (not shown), the first insertion plate and the second insertion plate are staggered, and then the first locking portion 2 and the second locking portion are locked by the first locking member 3 passing through the first insertion plate and the second insertion plate.

In this embodiment, the second lock portion may be integrally formed with the second portion 15 of the mounting portion 1, and in this case, the slot 7 or the insert plate 6 may be directly formed in the second portion 15.

Referring to fig. 5, the first locking member 3 has a shaft-like structure, one end of which can pass through the first locking portion 2 and the second locking portion, and the other end of which is provided with a handle 32.

As shown in fig. 6 and 7, the second locking member 4 can lock the first locking member 3, and when the counterweight 5 is loaded on the loading portion 1, the counterweight 5 can drive the second locking member 4 to unlock the first locking member 3, so that the operator can pull out the first locking member 3 to unlock the first locking member 2 and the second locking member.

As shown in fig. 7, the second locking member 4 includes a locking portion 41, a locking lever 42 connected to the locking portion 41, and an elastic member 43 for driving the locking portion 41 to return, wherein the locking portion 41 includes a plug board 411 and a socket 412, the socket 412 is fixedly installed in the cavity of the second portion 15, the plug board 411 is rotatably connected to the socket 412, and a rotation connection point of the two forms a fixed hinge point, as an embodiment, two mounting plates 4121 may be disposed on the socket 412, a pin 4122 is disposed between the two mounting plates 4121, and the pin 4122 sequentially passes through the mounting plates 4121, the plug board 411, and the mounting plates 4121, so as to achieve the rotatable connection of the plug board 411 to the socket 412.

One end of the plugging plate 411 is connected to the locking rod 42, the connection point between the locking rod 42 and the plugging plate 411 is not overlapped with the fixed hinge point, and the connection point can be located below the fixed hinge point, and through the arrangement of the structure, when the locking rod 42 moves, the locking rod 42 can drive the plugging plate 411 to rotate around the fixed hinge point, so as to lock and unlock the first locking member 3.

In order to better realize the rotation of the plugging plate 411, in this embodiment, an opening 4123 is further formed below the plugging seat 412, the locking rod 42 passes through the opening 4123 and is connected to the plugging plate 411, and the height of the opening 4123 is greater than the height of the locking rod 42, so that when the locking rod 42 drives the plugging plate 411 to rotate, the opening 4123 is arranged to prevent the locking rod 42 from interfering with the plugging seat 412 to affect the rotation of the plugging plate 411.

An elastic member 43 is further disposed between the plugging plate 411 and the plugging seat 412, and the elastic member 43 can drive the plugging plate 411 to rotate reversely and reset after the plugging plate 411 rotates and when no external force exists. In the present embodiment, the elastic member 43 is preferably a spring.

In this embodiment, the plugging plate 411 is provided with a plugging portion 4111, a plugging groove 31 is formed at one end of the first locking part 3 penetrating through the first locking part 2 and the second locking part, when the locking rod 42 moves in the direction of the plugging plate 411 under the action of an external force, the locking rod 42 can drive the plugging plate 411 to rotate relative to the fixed hinge point, at this time, the plugging portion 4111 of the plugging plate 411 is separated from the plugging groove 31, the locking of the second locking part 4 on the first locking part 3 is released, and the spring is compressed. When the locking lever 42 is not acted by an external force, the elastic member 43 drives the plugging plate 411 to rotate reversely, and finally the plugging portion 4111 of the plugging plate 411 is plugged into the plugging slot 31, and at this time, the second locking member 4 locks the first locking member 3.

In this embodiment, the external force is caused by the counterweight 5, optionally, one end of the locking rod 42, which is not connected to the plug board 411, can penetrate through the slot 11 of the first portion 14, and when the counterweight 5 is loaded in the slot 11, the counterweight 5 will contact the locking rod 42 and push the locking rod 42 to move toward the plug board 411, so as to drive the plug board 411 to rotate, and release the locking of the first locking member 3. When the counterweight 5 is removed, the elastic member 43 can reset the jack plate 411, and the locking rod 42 moves reversely and passes through the slot 11.

In this embodiment, the second locking member 4 may further include a push rod 44, one end of the push rod 44 abuts against the locking rod 42, the other end of the push rod 44 is disposed as a spherical surface and penetrates through the slot 11, the counterweight 5 can contact the spherical surface, the push rod 44 can be pushed by the counterweight 5, and the push rod 44 pushes the locking rod 42 to move toward the plug board 411. In addition, the spherical surface can avoid damage to the surface of the counterweight 5.

When the counterweight 5 is not arranged in the safety protection mechanism 10 of the embodiment, the first locking member 3 penetrates through the first locking portion 2 and the second locking portion, the connecting arm 30 of the moving rack is locked on the rack body 20 of the moving rack, at this time, the push rod 44 of the second locking member 4 is a spherical surface, and penetrates through the clamping groove 11, the limiting plate 121 of the limiting structure 12 partially extends out of the groove 13, and the insertion plate 411 is inserted into the insertion groove 31 of the first locking member 3.

When the counterweight 5 is loaded, in the process of loading the counterweight 5 into the clamping groove 11, the limiting plate 121 is pressed down until the surface of the upper end of the limiting plate 121 is flush with the side wall of the clamping groove 11, which is provided with the groove 13, along with the clamping of the counterweight 5 into the clamping groove 11, the limiting plate 121 is driven by the first spring 122 to partially extend out of the groove 13 and is attached to the side wall of the counterweight 5, so that the counterweight 5 is fixed and limited in the clamping groove 11.

Meanwhile, the counterweight 5 contacts the spherical surface of the push rod 44 and pushes the push rod 44 to move towards the direction of the first locking part 3, the push rod 44 drives the locking rod 42 to move, the locking rod 42 drives the plugboard 411 to rotate, the spring is compressed, the plugboard 411 is separated from the plugboard groove 31 at the moment, the first locking part 3 can be drawn out, and the locking of the first locking part 2 and the second locking part is released. The connecting arm 30 of the mobile chassis is now free to move or swing.

After dismantling counter weight 5, pass first locking part 3 first locking part 2 and second locking part, plugboard 411 is reverse rotation to the inserting groove 31 of pegging graft in first locking part 3 under the effect of spring, first locking part 3 is locked this moment, first locking part 2 and second locking part can't part, and then make the linking arm 30 of moving the frame lock in moving on the support body 20 of frame, prevent that linking arm 30 from stretching out and drawing back suddenly or the swing leads to hindering the people, the security performance of moving the frame has been improved.

Example two

The difference between the present embodiment and the first embodiment is that the structure of the locking portion 41 of the second locking member 4 and the structure of the first locking member 3 of the present application are different, and specifically, referring to fig. 8, the locking portion 41 of the present embodiment includes a plug 411 ', a rotating shaft 412 ', a rotating disc 413 ', a first pin 414 ' and a second pin 415 ', wherein:

the rotating shaft 412 'is rotatably disposed in the loading portion 1, specifically, in the cavity of the second portion 15, and the axis of the rotating shaft 412' is horizontally disposed, and the rotating disc 413 'is fixed on the rotating shaft 412', and the axis of the rotating disc 413 'is parallel to the axis of the rotating shaft 412'. The first pin 414 'is disposed on one side of the rotating disc 413', the second pin 415 'is disposed on the other side of the rotating disc 413', the axes of the first pin 414 'and the second pin 415' are not overlapped, the first pin 414 'is hinged to the locking lever 42, the second pin 415' is hinged to the plug 411 ', and the two ends of the elastic member 43 of the second locking member 4 are torsion springs respectively connected to the rotating shaft 412' and the loading portion 1.

In addition, the first locking member 3 of the present embodiment has a receptacle (not shown), and the plug 411' can be plugged into the receptacle to lock or unlock the first locking member 3.

The rest of the structure of this embodiment is the same as that of the first embodiment, and is not described again.

When the counterweight 5 is not disposed in the safety protection mechanism 10 of the embodiment, the first locking member 3 passes through the first locking portion 2 and the second locking portion, the connecting arm 30 of the moving rack is locked on the rack body 20 of the moving rack, at this time, the end of the push rod 44 of the second locking member 4, which is a spherical surface, passes through the slot 11, the position-limiting plate 121 of the position-limiting structure 12 partially extends out of the groove 13, and the plug 411' is plugged into the jack of the first locking member 3.

Meanwhile, the counterweight 5 contacts the spherical surface of the push rod 44 and pushes the push rod 44 to move towards the direction of the first locking part 3, the push rod 44 drives the locking rod 42 to move, the locking rod 42 drives the first pin 414 ' and the rotating disc 413 ' connected with the locking rod to rotate, the torsion spring is compressed and stores power while the rotating disc 413 ' rotates, the rotating disc 413 ' drives the second pin 415 ' on the other side to rotate, the second pin 415 ' drives the plug 411 ' to be separated from the jack, the first locking part 3 can be drawn out, and the locking of the first locking part 2 and the second locking part is released. The connecting arm 30 of the mobile chassis is now free to move or swing.

After dismantling counter weight 5, pass first locking part 3 first locking part 2 and second locking part, bayonet joint 411 'is in the jack of grafting in first locking part 3 of counter rotation under the effect of torsional spring, first locking part 3 is locked this moment, first locking part 2 and second locking part can't be partd, and then make the linking arm 30 of moving the frame lock in moving on the support body 20 of frame, prevent that linking arm 30 from stretching out and drawing back suddenly or the swing leads to hindering the people, the security performance of moving the frame has been improved.

EXAMPLE III

The present embodiments provide a DR apparatus, a digital radiography system, for X-ray imaging of a patient. In this embodiment, the DR apparatus includes the safety protection mechanism 10, the frame body 20, the connecting arm 30, the gas spring 40 and the combined handpiece as described in the first embodiment or the second embodiment, wherein one end of the connecting arm 30 is rotatably connected to the frame body 20, and the other end of the connecting arm can be connected to the combined handpiece, which can radiate X-rays and confine the X-rays to a preset size area matched with the X-rays according to the position and size of the patient to be imaged, in this embodiment, the combined handpiece is the counterweight 5 as described in the first embodiment or the second embodiment.

The first locking part 2 of the safety protection mechanism 10 is fixedly installed on the frame body 20 of the loading part 1 of the safety protection mechanism 10.

The gas spring 40 has one end connected to the frame body 20 and the other end connected to the connecting arm 30 for driving the connecting arm 30 to rotate relative to the frame body 20, the connecting arm 30 can rotate to be attached to or parallel to the frame body 20, and also can rotate to form a certain angle with the frame body 20, and the combined head can rotate along with the connecting arm 30 to form two working states and a non-working state.

The DR equipment of this embodiment, it can realize the fixed loading to the built-up head, also can carry out effective support to it when the built-up head is imaged. When the combined machine head is not loaded, the first locking part 3 penetrates through the first locking part 2 and the second locking part, the connecting arm 30 is locked on the frame body 20, the air spring 40 is limited and cannot be ejected, the connecting arm 30 is prevented from being hurt by sudden swinging driven by the air spring 40, and the safety performance of the DR equipment is improved.

After the combined machine head is loaded, the combined machine head can drive the second locking member 4 to unlock the first locking member 3 (the specific unlocking mode can be referred to as the unlocking mode of the safety protection mechanism described in the first embodiment or the second embodiment), at this time, the gas spring 40 can be ejected out, and drives the connecting arm 30 to rotate relative to the frame body 20, and the connecting plate 30 can drive the combined machine head to rotate to a preset position, so as to perform imaging operation on a patient, wherein the preset position is a position where the patient needs to be imaged.

In this embodiment, preferably, in order to further improve the applicability of the DR apparatus, the frame body 20 of this embodiment may further include a first frame body and a second frame body, wherein the first frame body is disposed in the second frame body and is telescopic relative to the second frame body, one end of the connecting arm 30 is rotatably connected to the second frame body and can move along with the second frame body, the height of the telescopic arm 30 can be adjusted through the telescopic of the second frame body relative to the first frame body, and then when imaging patients with different heights or different parts of patients, the height of the telescopic arm 30 can be adjusted by adjusting the height of the second frame body, and then the height of the combined handpiece is also adjusted, so that the combined handpiece can image patients with different heights or different parts of patients. Further, in this embodiment, rollers or a base having the rollers may be further disposed below the frame body 20, and the arrangement of the rollers enables the whole DR apparatus to have a movable function, so as to improve convenience of the DR apparatus.

The DR equipment of the embodiment, which is provided with the safety protection mechanism 10, can prevent the connecting arm 30 from being suddenly ejected by the air spring 40 when the combined machine head is not loaded, thereby ensuring the personal safety of the operator. When the combined machine head is required to be used, the safety protection mechanism 10 can be unlocked by loading the combined machine head, and then the combined machine head can be driven to a preset position by the connecting arm 30 to image a patient. And when carrying out the transportation of above-mentioned DR equipment, can dismantle the combination aircraft nose, lock the linking arm 30 with on the support body 20 this moment, also can be convenient for DR equipment's transportation, and avoid the damage of spare part.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A safety protection mechanism (10), comprising:

a loading section (1) for loading a counterweight (5);

the lock assembly comprises a first lock part (2), a second lock part arranged on the loading part (1), a first locking part (3) used for locking the first lock part (2) and the second lock part, and a second locking part (4) capable of locking the first locking part (3);

when the counterweight (5) is loaded on the loading part (1), the counterweight (5) drives the second locking piece (4) to unlock the first locking piece (3).

2. The safety mechanism (10) according to claim 1, wherein the second locking member (4) comprises a locking portion (41), a locking lever (42) connected to the locking portion (41), and an elastic member (43) for driving the locking portion (41) to return;

the locking rod (42) can be driven by the counterweight (5) to move so as to drive the locking part (41) to unlock the first locking part (3), and when the elastic part (43) drives the locking part (41) to reset, the locking part (41) locks the first locking part (3).

3. The safety mechanism (10) of claim 2, wherein the locking portion (41) comprises a plug plate (411) rotating around a fixed hinge point, a connecting point of the locking rod (42) and the plug plate (411) is not coincident with the fixed hinge point, and the locking rod (42) moves to drive the plug plate (411) to rotate so as to lock or unlock the first locking member (3).

4. The safety protection mechanism (10) according to claim 3, wherein the first locking member (3) is provided with a plug-in slot (31), and the plug-in plate (411) can be plugged into the plug-in slot (31) to lock or unlock the first locking member (3).

5. Safety mechanism (10) according to claim 3 or 4, wherein the locking part (41) further comprises a socket (412) fixedly connected to the loading part (1), the socket plate (411) is rotatably connected to the socket (412) and the rotation connection point of the two forms the fixed hinge point, and the elastic element (43) is arranged between the socket plate (411) and the socket (412).

6. A safety mechanism (10) according to claim 2, wherein the locking part (41) comprises a plug (411 '), the locking lever (42) is drivingly connected to the plug (411 '), and the movement of the locking lever (42) causes the movement of the plug (411 ') to lock or unlock the first locking member (3).

7. The safety mechanism (10) according to claim 6, wherein the locking portion (41) further comprises a rotating shaft (412 ') rotating relative to the loading portion (1), a rotating plate (413 ') fixedly sleeved on the rotating shaft (412 '), a first pin (414 ') fixedly connected to one side of the rotating plate (413 '), and a second pin (415 ') fixedly connected to the other side of the rotating plate (413 '), wherein the axes of the first pin (414 ') and the second pin (415 ') are not coincident, the first pin (414 ') is hinged to the locking rod (42), the second pin (415 ') is hinged to the plug head (411 '), and the elastic member (43) is a torsion spring with two ends respectively connected to the rotating shaft (412 ') and the loading portion (1).

8. The safety mechanism (10) according to claim 6 or 7, wherein the first locking member (3) is provided with a socket, and the plug (411') can be plugged into the socket to lock or unlock the first locking member (3).

9. The safety protection mechanism (10) according to claim 1, wherein one of the first lock part (2) and the second lock part is provided with an insert plate (6), the other lock part is provided with a slot (7), the insert plate (6) is inserted into the slot (7), the first locking part (3) passes through the slot (7) and the insert plate (6) to lock the first lock part (2) and the second lock part;

or, first lock portion (2) are equipped with first picture peg, and the second lock portion is equipped with the second picture peg, first lock portion (3) pass first picture peg and the second picture peg, will first lock portion (2) with the locking of second lock portion.

10. The safety protection mechanism (10) according to claim 1, wherein the loading portion (1) is provided with a slot (11), the counterweight (5) is loaded in the slot (11), and a limit structure (12) is provided at the slot (11), and the limit structure (12) is configured to lock and unlock the counterweight (5).

11. A mobile frame, comprising a frame body (20) and a connecting arm (30), characterized in that it further comprises a safety protection mechanism (10) according to any of claims 1 to 10, wherein the first lock portion (2) of the safety protection mechanism (10) is fixedly connected to the frame body (20), and the loading portion (1) of the safety protection mechanism (10) is fixedly connected to the connecting arm (30).

12. The utility model provides a DR equipment, DR equipment is digital X-ray imaging system, its characterized in that, including support body (20), linking arm (30), combination aircraft nose and any safety protection mechanism (10) of claim 1-10, linking arm (30) one end rotate connect in support body (20), the other end is connected with the combination aircraft nose, the combination aircraft nose can load in on the portion (1) of loading of safety protection mechanism (10), loading portion (1) is fixed in linking arm (30), set firmly on support body (20) first lock portion (2) of safety protection mechanism (10), the combination aircraft nose does the counter weight.

13. A DR apparatus according to claim 12, wherein said connecting arm (30) is connected to a gas spring (40), said gas spring (40) being fixedly connected at one end to said frame body (20) and at the other end for driving said connecting arm (30) in rotation relative to said frame body (20).