A mobile medical X-ray machine

Abstract

The present invention belongs to the technical field of X-ray machines, and provides a mobile medical X-ray machine, including a column, a sprocket mounting seat fixedly mounted on the column and a balancing spring assembly arranged between the fixed base; an arm is hingedly mounted on the top of the column, one end of the arm is provided with a mounting seat for installing the machine head, and the mounting seat is connected to the machine arm through a positioning locking mechanism, a balancing support rod is arranged directly below the machine arm, and the two ends of the balancing support rod are respectively hingedly connected to the column and the mounting seat; a chain is also arranged in the column, and the chain frame is arranged around the second sprocket, and the two ends are respectively connected to the machine arm and the sprocket mounting seat. The present invention allows the upper and lower position adjustment of the machine head to be achieved by applying only a small external force, so that the adjustment operation of the machine head is labor-saving, flexible and convenient, and can achieve the positioning and fixation of the machine head after adjustment, avoiding the deviation and shaking of the machine head during the diagnosis process, thereby ensuring the accurate diagnosis of the patient.

Description

Technical Field

[0001] The present invention relates to the technical field of X-ray machines, and in particular to a mobile medical X-ray machine. Background Art

[0002] Medical X-ray diagnostic equipment is the earliest and most widely used medical imaging examination method. X-ray machine, also called X-ray diagnostic equipment or medical X-ray fluoroscopy, is a device that can generate X-rays and can be used for fluoroscopy and photography. The outstanding feature of mobile medical high-frequency X-ray machine is that it can be moved to the bedside, operating room, etc., which solves the problem for patients who are not convenient to move to the radiology department for photography diagnosis.

[0003] The Chinese utility model patent No. 201420788357.6 discloses a portable digital X-ray photography system folding frame, including a folding front seat, a base, a column and an arm; the bottom end of the column is welded to the base; the folding front seat and the lower part of the base are respectively provided with front wheels and rear load-bearing wheels; the front end of the base is provided with an extension rod; the folding front seat is hinged to the end of the extension rod of the base through a locking pin; one end of the arm is hinged to the top of the column; a lifting locking device is provided in the middle of the arm; the lifting locking device is connected to the column through a hydraulic rod. The utility model has a simple structure, light weight, and is convenient and fast to fold. It can be folded without disassembling the components of the X-ray camera system, and the storage volume required after folding is small. When folded for outpatient diagnosis and treatment, it can be directly placed in the trunk of the car, which is convenient for medical staff to carry for emergency diagnosis and treatment and field diagnosis and treatment. Although the frame of the above structure has a folding function, it is gradually found that it has the following defects during use:

[0004] (1) It cannot be installed and used with different camera heads, has poor versatility, and the disassembly and assembly of the head is complicated and inconvenient, and the installation firmness is poor;

[0005] (2) It is not convenient to realize the full range of flexible adjustment of the machine head and the positioning lock after adjustment, and the machine head is inconvenient to adjust and the adjustment accuracy is poor;

[0006] (3) There is no safety device to prevent misoperation, and the safety of use is not guaranteed;

[0007] (4) It is easy to move during the diagnostic process, which cannot ensure accurate and effective diagnosis of patients. Summary of the invention

[0008] In order to overcome the above-mentioned defects of the prior art, the inventors conducted in-depth research and completed the present invention after paying a lot of creative work.

[0009] Specifically, the technical problem to be solved by the present invention is to provide a mobile medical X-ray machine to solve the technical problems of current X-ray machines, such as cumbersome and inconvenient disassembly and assembly of the machine head, inconvenient to achieve all-round and flexible adjustment of the machine head, inability to ensure accurate and effective imaging and diagnosis of patients, and lack of guaranteed safety of use.

[0010] In order to solve the above technical problems, the technical solution of the present invention is:

[0011] A mobile medical X-ray machine comprises a base, wherein the base is provided with moving wheels and a brake device, and a column is also installed on the base, an arm is hingedly installed on the top of the column, a head mounting seat is provided at one end of the arm, and the head mounting seat is connected to the arm through a positioning locking mechanism, and a balance support rod is provided directly below the arm, the balance support rod is arranged parallel to the arm, and the two ends of the balance support rod are respectively hingedly connected to the column and the head mounting seat;

[0012] A balancing and labor-saving device is provided in the column, and the other end of the machine arm is connected to the balancing and labor-saving device through a chain;

[0013] A head mounting assembly is rotatably mounted on the head mounting seat, and the head is fixedly mounted on the head mounting assembly through a hanger. A rotating locking mechanism for positioning the head mounting assembly is provided on the head mounting seat, and a safety device for locking the head mounting seat with the machine arm is also provided on the head mounting seat.

[0014] As an improved technical solution, a first fixed plate and a second fixed plate are fixedly installed on the back of the head mounting seat, the first fixed plate is located between the second fixed plate and the head mounting seat, and a hanging plate limit seat is also fixedly installed on the head mounting seat, the hanging plate limit seat passes through the head mounting seat and passes through the first fixed plate and the second fixed plate in sequence, and the head mounting assembly is rotatably installed at the end of the hanging plate limit seat.

[0015] As an improved technical solution, the rotary locking mechanism includes a pressure plate, a friction locking block and a locking handle. The pressure plate is fixedly connected to the machine head mounting assembly, and the pressure plate is located between the first fixed plate and the second fixed plate. The second fixed plate is provided with a slot hole that matches the friction locking block. The friction locking block is slidably installed on the second fixed plate through the slot hole. The threaded end of the locking handle sequentially passes through the machine head mounting seat, the first fixed plate and the second fixed plate, and is threadedly connected to the friction locking block.

[0016] As an improved technical solution, the machine head mounting assembly includes a first fixed plate and a second fixed plate, the first fixed plate is rotatably mounted on the hanging plate limit seat, the pressure plate is fixedly mounted on one side of the first fixed plate, the second fixed plate is fixedly mounted on the other side of the first fixed plate by means of a rivet column and a first mounting screw, and a gap is formed between the rivet column and the first fixed plate for the hanger to be clamped, the machine head is fixedly mounted on the hanger, a positioning slot matching the outer diameter of the rivet column is provided on the hanger, the hanger is clamped between the second fixed plate and the first fixed plate by the positioning slot and the rivet column, and is fixedly connected by a second mounting screw.

[0017] As an improved technical solution, the rivet column is fixedly mounted on the second fixing plate and is arranged on a side of the second fixing plate facing the first fixing plate. The first mounting screw passes through the first fixing plate and is threadedly connected to the rivet column.

[0018] As an improved technical solution, the pressure plate is fixedly installed on one side of the first fixed plate through a number of installation components, and the installation components include a fastening nut, a washer and a fastening screw. The fastening nut is arranged through the first fixed plate, the washer is sleeved on the fastening nut, and the fastening screw passes through the pressure plate and is threadedly connected to the fastening nut.

[0019] As an improved technical solution, a scale indicator is fixedly mounted on the first fixed plate, a scale ruler is provided on the first fixed disk, and the scale ruler is arranged on the outer peripheral surface of the first fixed disk.

[0020] As an improved technical solution, a first limit stop pin is also fixedly installed on the first fixed plate, two first limit stop pins are provided and are correspondingly arranged on one side of the first fixed plate, the second fixed plate is located between the two first limit stop pins, and a second limit stop pin is fixedly installed on the bottom of the second fixed plate.

[0021] As an improved technical solution, the safety device includes a self-locking top column, a self-locking spring, a self-locking bracket, a bracket shaft, a self-locking pin, a self-locking hanging plate and a self-locking hook. The hanging plate limit seat is provided with a mounting hole and a slide groove connected to the mounting hole. The self-locking top column is movably inserted into the mounting hole of the hanging plate limit seat. The self-locking spring is sleeved on the self-locking top column and is located between the self-locking top column and the hanging plate limit seat. The self-locking bracket is hingedly installed on the bracket shaft. The self-locking hook is fixedly installed on one end of the machine arm, and the self-locking hook has a hanging platform. When in a safety locking state, the self-locking hanging plate is against the hanging platform of the self-locking hook.

[0022] As an improved technical solution, the self-locking bracket includes a U-shaped plate and a connecting plate. One end of the U-shaped plate is rotatably mounted on the machine head mounting seat using the bracket shaft, the self-locking hanging plate is hingedly mounted on the other end of the U-shaped plate, one end of the connecting plate is fixedly connected to the U-shaped plate, and the self-locking pin is installed on the other end of the connecting plate.

[0023] As an improved technical solution, the safety device further comprises a spring safety assembly for realizing the self-locking top column stop, and the spring safety assembly is arranged on the other side of the first fixing plate;

[0024] The spring safety assembly includes a top column baffle and a tension spring, one end of the top column baffle is hingedly mounted on the first fixed plate, the two ends of the tension spring are respectively connected to the first fixed plate and the top column baffle, and under the action of the tension spring, the other end of the top column baffle is arranged corresponding to the mounting hole of the hanging plate limit seat.

[0025] As an improved technical solution, a spring accommodating groove is provided on the other side of the first fixing plate, and the tension spring is arranged in the spring accommodating groove.

[0026] As an improved technical solution, an arm shaft is installed on the top of the column, a shaft sleeve is sleeved on the arm shaft, and the arm is rotatably installed on the arm shaft through the shaft sleeve.

[0027] As an improved technical solution, a dustproof plate is hingedly installed on the top of the column, and a push handle is also fixedly installed on the column.

[0028] As an improved technical solution, a plurality of connection clamps are provided on the machine arm, and the connection clamps are arranged in an array along the length direction of the machine arm.

[0029] As an improved technical solution, the balancing and labor-saving device includes a fixed base fixedly installed at the bottom of the column, a sprocket mounting seat is also fixedly installed in the column, a balancing spring assembly is provided between the sprocket mounting seat and the fixed base, and a first sprocket is rotatably mounted on the sprocket mounting seat;

[0030] The balance spring assembly includes a first spring end piece, a second spring end piece, a force balance spring and a second sprocket, the first spring end piece is connected to the fixed base through a first adjusting bolt, the force balance spring is located between the first spring end piece and the second spring end piece, and the two ends of the force balance spring are respectively fixedly connected to the first spring end piece and the second spring end piece, and the second sprocket is rotatably mounted on the second spring end piece;

[0031] One end of the chain is connected to the other end of the machine arm, the chain frame is arranged around the second sprocket and meshes with the first sprocket and the second sprocket, and the other end of the chain is connected to the sprocket mounting seat.

[0032] As an improved technical solution, the fixed base has a first limiting groove that is adapted to the outer diameter of the first spring end piece, the first spring end piece is slidably arranged in the first limiting groove, the first adjusting bolt passes through the fixed base, and the end portion is threadedly connected to the first spring end piece.

[0033] As an improved technical solution, a sprocket mounting shaft is fixedly mounted on the second spring end piece, and the second sprocket is rotatably mounted on both ends of the sprocket mounting shaft.

[0034] As an improved technical solution, the positioning locking mechanism includes a locking shaft fixedly installed on the end of the machine arm, the locking shaft is provided with a washer, a first friction plate, a friction plate fixing plate and a second friction plate, and the machine arm is rotatably installed with the machine head mounting seat through the locking shaft, the washer is respectively arranged between the self-locking hook and the inner side of the machine head mounting seat, the first friction plate is embedded in one of the washers and is arranged on the side of the washer facing the machine head mounting seat, the threaded end of the locking shaft passes through the machine head mounting seat and is threadedly installed with a locking screw, the friction plate fixing plate and the second friction plate are located between the locking screw and the machine head mounting seat, and the second friction plate is embedded in the friction plate fixing plate and is arranged on the side of the friction plate fixing plate facing the machine head mounting seat.

[0035] As an improved technical solution, a locking shaft blocking plate is fixedly mounted on the machine head mounting seat for sealing the other end of the locking shaft.

[0036] As an improved technical solution, the moving wheels include front steering wheels and rear load-bearing wheels, the front steering wheels are rotatably mounted on both sides of one end of the base, and the rear load-bearing wheels are rotatably mounted on both sides of the other end of the base;

[0037] The brake device comprises a pedal shaft rotatably mounted on the base, a cam is mounted on one end of the pedal shaft, and a brake assembly is respectively arranged between the cam and the rear load-bearing wheel, and the other end of the pedal shaft extends outside the base and is mounted with a pedal via a pedal connecting rod;

[0038] The brake assembly includes a brake push rod and a brake seat which are slidably arranged along the axial direction of the rear load-bearing wheel. One end of the brake push rod is arranged to abut against the wheel edge of the cam through a pin shaft, and the other end of the brake push rod is arranged to abut against the brake seat through a second adjusting bolt. A brake disc is fixedly mounted on the end of the wheel axle of the rear load-bearing wheel, the brake seat is located between the brake disc and the second adjusting bolt, and a compression spring is provided between the brake seat and the brake disc to achieve its resetting.

[0039] As an improved technical solution, a limiting cylinder is fixedly installed on the base, the brake push rod is slidably installed in the limiting cylinder, and one end of the brake push rod is provided with an avoidance groove for achieving cam avoidance, the pin shaft is rotatably installed on one end of the brake push rod and abuts against the cam, and the second adjusting bolt is threadedly installed on the other end of the brake push rod.

[0040] As an improved technical solution, a limit block is fixedly installed on the base, a second limit groove adapted to the limit block is opened on the brake seat, and the brake seat is slidably installed on the base through the second limit groove and the limit block.

[0041] As an improved technical solution, a plurality of insertion holes are evenly arranged along the circumferential direction on one side of the brake disc facing the brake seat, and a brake pin corresponding to the insertion holes is provided on one side of the brake seat facing the brake disc.

[0042] As an improved technical solution, an auxiliary support rod is fixedly mounted on the base, and the auxiliary support rod is located in the middle of the other end of the base and extends to the outside of the base.

[0043] As an improved technical solution, a casing covering the bottom of the column is fixedly mounted on the base, a control box is provided on the casing, and a wire hook for winding and reeling the wire is provided on the back of the casing.

[0044] After adopting the above technical solution, the beneficial effects of the present invention are:

[0045] (1) The mobile medical X-ray machine is provided with moving wheels and a braking device, which facilitates its movement and braking, and is not prone to displacement during use after braking; the machine head mounting assembly is provided, which makes the disassembly and assembly of the machine head simple and quick; the assembly and coordination of the machine arm, the balancing support rod and the balancing and labor-saving device can effectively offset the gravity of the machine head, making the upward and downward adjustment of the machine head flexible and labor-saving; the safety device is provided to ensure that the machine head can be operated only after it is installed, avoiding accidental injury to personnel due to misoperation, and after use, the machine head is safely locked by the safety device, which provides safety protection while facilitating the displacement of the X-ray machine. When in use, move the X-ray machine into position and then brake, then release the locking state of the safety device to adjust the position of the machine head. When adjusting, loosen the locking screw to adjust the height of the machine head. After the adjustment is completed, re-tighten the locking screw to position and fix the current adjusted height. Loosen the locking handle to adjust the rotation of the machine head. After adjusting to the desired shooting angle, re-tighten the locking handle to position and fix the current angle, thereby achieving all-round adjustment of the machine head and ensuring accurate shooting and diagnosis of the patient. After use, loosen the locking screw and press the machine head down to the safety locking position, the safety device can automatically lock the machine arm for safety to facilitate the movement of the X-ray machine.

[0046] (2) The machine head mounting base is installed by means of a machine arm and a balancing support rod and is equipped with a balancing and labor-saving device. After the machine head is installed, during the process of swinging the machine head up and down, the torque of the force balancing spring acting on the machine arm will offset the torque of the machine head acting on the machine arm, that is, the tension generated by the deformation of the force balancing spring can offset the self-weight of the machine head, so that the up and down position adjustment of the machine head can be achieved by applying only a small external force. After the adjustment, as the external force is removed, the machine head achieves stillness at the current adjustment position under the action of the balancing force, thereby making the up and down adjustment operation of the machine head labor-saving, flexible and convenient.

[0047] (3) The first spring end piece is connected to the fixed base through the first adjusting bolt. The first adjusting bolt is rotated and adjusted according to the gravity of the installation head, so that the tension of the force balance spring can be adjusted, so that it can be suitable for the installation and use of different heads, and has strong versatility.

[0048] (4) The positioning locking mechanism is provided, and the locking screw is threadedly connected to the locking shaft. By tightening the locking screw, the friction plate can be pressed onto the head mounting seat. Under the action of the friction force of the friction plate and the balance support rod, the rotation between the head mounting seat and the machine arm is limited, thereby realizing the positioning and fixation of the current position of the machine arm. The positioning operation is simple and convenient. After adjusting the head to the required height position, the positioning locking mechanism is used to position and fix the current adjustment position. The head will not be offset or shaken during the diagnosis process, thereby ensuring accurate diagnosis of the patient.

[0049] (5) The machine head mounting assembly provided not only enables convenient and secure installation of the machine head, but also makes the disassembly and assembly of the machine head simple and convenient, providing convenience for the maintenance, repair and replacement of the machine head. When installing the machine head, the positioning slot of the hanger is clamped between the second fixing plate and the first fixing plate corresponding to the position of the rivet column. After the hanger is positioned and clamped, the through hole on the hanger is directly opposite to the through hole on the first fixing plate and the threaded hole on the second fixing plate. Then the second mounting screw is passed through the first fixing plate and the hanger in sequence and threadedly installed with the second fixing plate and tightened, so that the machine head can be firmly installed; when the machine head needs to be repaired, maintained or replaced, the second mounting screw is first removed, and then the hanger is lifted up from the bottom to achieve the disassembly of the machine head.

[0050] (6) The rotary locking mechanism is provided. The head can be rotated and adjusted by loosening the locking handle. After the adjustment is completed, the locking handle is tightened again. The pressure plate is pressed by the friction locking block. Under the action of the friction force, the pressure plate is locked and positioned, thereby achieving the positioning and fixation of the current shooting angle after the head is rotated and adjusted.

[0051] (7) The scale ruler provided on the first fixed disk and the scale indicator installed on the first fixed plate can realize auxiliary adjustment of the rotation of the machine head, ensuring that the rotation adjustment of the machine head is more precise; in addition, the first limit stop pin installed on the first fixed plate and the second limit stop pin installed on the bottom of the second fixed disk make it possible for the machine head to be rotated and adjusted only within an effective working range of 180° when the rotation of the machine head is adjusted, which is convenient and practical.

[0052] (8) The safety device is provided. Since the balancing and labor-saving device is used to offset the weight of the machine head, when the machine head is not installed, the top column baffle plate blocks the self-locking top column. At this time, the self-locking pin cannot be pushed up, that is, the locking state of the safety device cannot be released, thereby avoiding the occurrence of safety accidents and ensuring safe use. When the machine head is installed, the hanger will press the top column baffle plate down. In this state, the safety device can be unlocked. When in use, the self-locking pin is pushed up, and the self-locking hanging plate and the self-locking hanging plate are locked. The hook is disengaged and the self-locking top column is pushed out. At this time, the self-locking spring is in a compressed state. After the self-locking hanging plate is disengaged from the self-locking hook, the machine arm can be lifted up to release the lock of the machine arm. Thereafter, the machine arm can be swung up and down, thereby realizing flexible adjustment of the machine head height; after the use of the X-ray machine, the machine arm is pressed down until the hanging platform of the self-locking hook is located below the self-locking hanging plate. Under the elastic force of the self-locking spring, the self-locking hanging plate is pushed out through the self-locking top column, so that the self-locking hanging plate is again against the hanging platform of the self-locking hook, thereby realizing automatic locking of the machine arm.

[0053] The safety device ensures that the machine can be used only after the machine head is installed, thereby avoiding the occurrence of misoperation and effectively avoiding potential safety hazards during the use of the X-ray machine. When the machine head is installed, the locking state can be released by pushing the self-locking pin upward to use the X-ray machine. After use, the machine arm can be automatically locked by pressing the machine arm downward to the lowest locking position. The operation is simple, convenient, safe and reliable. After the machine arm is locked, the X-ray machine can be easily moved.

[0054] (9) The first fixing plate is provided with a spring receiving groove, and the tension spring is installed in the spring receiving groove to achieve avoidance when the hanger is installed.

[0055] (10) A dust plate is hingedly installed on the top of the column, which can move with the arm when the position of the machine head is adjusted, and can effectively prevent dust from entering the column; a push handle is installed on the column, and the X-ray machine is pushed and pulled by the push handle, which facilitates the movement of the X-ray machine.

[0056] (11) The connecting wire clip provided on the machine arm is used to fix the machine head connecting wire, so that the machine head connecting wire is laid neatly and beautifully, while avoiding the influence on the adjustment of the machine head; the connecting wire hook provided on the machine housing is used to realize the winding and placement of the wire.

[0057] (12) With the brake device, after the X-ray machine is moved into position, one of the pedals is stepped on to drive the cam to rotate through the pedal shaft, and then the brake assembly is used to brake the rear load-bearing wheel, thereby avoiding displacement of the X-ray machine during use. After the X-ray machine is used, the other pedal is stepped on to reset the cam, and the brake assembly is reset under the action of the compression spring, thereby releasing the braking state of the rear load-bearing wheel, and the X-ray machine can be moved, which is convenient to use.

[0058] (13) The brake disc is provided with a socket and the brake seat is provided with a brake pin corresponding to the socket. When braking, the brake pin will be inserted into the socket to brake the rear load-bearing wheel, and the braking effect is good.

[0059] (14) An auxiliary support rod fixedly mounted on the base supports the X-ray machine during maintenance of the brake device and protects the foot pedal. In addition, when passing through a threshold or other position, the X-ray machine can be pulled by the push handle while the auxiliary support rod is carried by hand to facilitate the smooth passage of the X-ray machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0061] Figure 1 It is a structural schematic diagram of the present invention;

[0062] Figure 2 This is a schematic diagram of the installation structure of the balancing and labor-saving device of the present invention;

[0063] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure in the AA direction;

[0064] Figure 4 It is a schematic diagram of the installation structure of the first spring end piece and the fixed base of the present invention;

[0065] Figure 5 It is a structural schematic diagram of the balance spring assembly of the present invention;

[0066] Figure 6 It is a structural schematic diagram of the head mounting seat part of the present invention;

[0067] Figure 7 It is a right side structural schematic diagram of the head mounting seat part of the present invention;

[0068] Figure 8 for Figure 7 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0069] Fig. 9 It is a schematic diagram of the top view of the head mounting seat of the present invention;

[0070] Fig.10 It is a schematic diagram of the installation structure of the spring safety assembly of the present invention;

[0071] Fig.11 It is a front view structural schematic diagram of the head mounting seat of the present invention;

[0072] Fig.12 It is a structural schematic diagram of the hanging plate limiting seat of the present invention;

[0073] Fig.13 It is a structural schematic diagram of the self-locking bracket of the present invention;

[0074] Fig.14 It is a structural schematic diagram of the self-locking hook of the present invention;

[0075] Fig.15 It is a structural schematic diagram of the positioning and locking mechanism of the present invention;

[0076] Fig.16 It is a structural schematic diagram of the base part of the present invention;

[0077] Fig.17 It is a structural schematic diagram of the cam of the present invention;

[0078] Fig.18 for Fig.16 A schematic diagram of the enlarged structure of the middle I part;

[0079] Figure numerals: 1-base; 2-column; 3-machine arm; 4-machine head mounting seat; 401-strip hole; 402-unlock mark; 5-balance support rod; 6-machine arm rotating shaft; 7-shaft sleeve; 8-fixed base; 801-first limit groove; 9-sprocket mounting seat; 10-first sprocket; 11-first spring end piece; 12-second spring end piece; 13-force balancing spring; 14-sprocket mounting shaft; 15-second sprocket; 16-first adjusting bolt; 17-chain; 18-first fixed plate; 19 - second fixed plate; 20- hanging plate limit seat; 2001- mounting hole; 2002- slide groove; 21- pressure plate; 22- friction locking block; 23- locking handle; 24- first fixed plate; 2401- spring receiving groove; 25- second fixed plate; 26- rivet column; 27- first mounting screw; 28- hanger; 2801- positioning card slot; 29- machine head; 30- second mounting screw; 31- fastening nut; 32- washer; 33- fastening screw; 34- scale indicator; 35- scale mark Ruler; 36-first limit stop pin; 37-second limit stop pin; 38-self-locking top column; 39-self-locking spring; 40-self-locking bracket; 4001-U-shaped plate; 4002-connecting plate; 41-bracket shaft; 42-self-locking pin; 43-self-locking hanging plate; 44-self-locking hook; 4401-hanging table; 45-top column baffle; 46-tension spring; 47-locking shaft; 48-washer; 49-first friction plate; 50-friction plate fixing plate; 51-second friction plate; 52-locking shaft blocking plate; 53-housing; 54-control box; 55-connecting hook; 56-push handle; 57-dustproof plate; 58-connecting clamp; 59-front steering wheel; 60-rear load-bearing wheel; 61-pedal shaft; 62-cam; 63-pedal; 64-limiting cylinder; 65-brake push rod; 66-pin shaft; 67-second adjusting bolt; 68-limiting block; 69-brake seat; 6901-brake pin; 70-brake disc; 7001-socket; 71-compression spring; 72-auxiliary support rod; 73-locking screw. DETAILED DESCRIPTION

[0080] The present invention is further described below in conjunction with specific examples. However, the use and purpose of these exemplary embodiments are only used to illustrate the present invention, and do not constitute any form of limitation on the actual protection scope of the present invention, nor do they limit the protection scope of the present invention to them.

[0081] like Figure 1 , Figure 2 , Figure 6 and Fig.16As shown together, the present embodiment provides a mobile medical X-ray machine, comprising a base 1, on which a moving wheel and a brake device are provided, and a column 2 is also installed on the base 1, an arm 3 is hingedly installed on the top of the column 2, one end of the arm 3 is provided with a head mounting seat 4, the head mounting seat 4 is connected to the arm 3 through a positioning and locking mechanism, a balancing support rod 5 is provided directly below the arm 3, the balancing support rod 5 is arranged parallel to the arm 3, and the two ends of the balancing support rod 5 are respectively hingedly connected to the column 2 and the head mounting seat 4; a balancing and labor-saving device is provided in the column 2, and the other end of the arm 3 is connected to the balancing and labor-saving device through a chain 17; a head 29 mounting assembly is rotatably installed on the head mounting seat 4, the head 29 is fixedly installed on the head 29 mounting assembly through a hanger 28, and a rotating locking mechanism for realizing the positioning of the head 29 mounting assembly is provided on the head mounting seat 4, and a safety insurance device for realizing the locking of the head 29 mounting assembly with the arm 3 is also provided on the head mounting seat 4.

[0082] like Figure 2 As shown, in this embodiment, the arm 3 is an integrally formed rod with a corner, and the arm 3 is hingedly mounted on the column 2 through its corner position.

[0083] like Figure 3 As shown, in this embodiment, an arm shaft 6 is installed on the top of the column 2, a shaft sleeve 7 is mounted on the arm shaft 6, and the arm 3 is rotatably installed on the arm shaft 6 through the shaft sleeve 7.

[0084] like Figures 1 to 5 As shown together, the balancing and labor-saving device includes a fixed base 8 fixedly installed at the bottom of the column 2, a sprocket mounting seat 9 is also fixedly installed in the column 2, a balancing spring assembly is provided between the sprocket mounting seat 9 and the fixed base 8, and a first sprocket 10 is rotatably installed on the sprocket mounting seat 9.

[0085] The balancing spring assembly includes a first spring end piece 11, a second spring end piece 12, a force balancing spring 13 and a second sprocket 15. The first spring end piece 11 is connected to the fixed base 8 through a first adjusting bolt 16. The force balancing spring 13 is located between the first spring end piece 11 and the second spring end piece 12, and the two ends of the force balancing spring 13 are fixedly connected to the first spring end piece 11 and the second spring end piece 12 respectively. The second sprocket 15 is rotatably mounted on the second spring end piece 12.

[0086] In order to realize the installation of the second sprocket 15 on the second spring end piece 12, a sprocket mounting shaft 14 is fixedly mounted on the second spring end piece 12, and the second sprocket 15 is rotatably mounted on both ends of the sprocket mounting shaft 14; in this embodiment, the sprocket mounting shaft 14 is inserted into the second spring end piece 12, and its positioning and fixing is achieved by using positioning screws.

[0087] One end of the chain 17 is connected to the other end of the arm 3 , the chain 17 is arranged around the second sprocket 15 , meshed with the first sprocket 10 and the second sprocket 15 , and the other end of the chain 17 is connected to the sprocket mounting seat 9 .

[0088] In this embodiment, the fixed base 8 has a first limiting groove 801 that is adapted to the outer diameter of the first spring end piece 11. The first spring end piece 11 is slidably arranged in the first limiting groove 801. The first adjusting bolt 16 passes through the fixed base 8, and the end is threadedly connected to the first spring end piece 11. The connection between the first spring end piece 11 and the fixed base 8 is achieved through the first adjusting bolt 16. According to the gravity of the installation head 29, the first adjusting bolt 16 is rotated and adjusted to achieve the tension adjustment of the force balance spring 13, so that it can be suitable for the installation and use of different heads 29, and has strong versatility.

[0089] The balancing and labor-saving device is provided. After the head 29 is installed, the arm 3 is in a horizontal position as the reference balancing position for analysis. At this time, the force arm of the head 29 is the largest. When the head 29 is adjusted upward at this position, only the arm 3 works. As the head 29 moves upward, the force arm of the head 29 becomes smaller, so that the torque generated becomes smaller and smaller, and the deformation of the force balancing spring 13 also decreases, that is, the tension of the force balancing spring 13 decreases, and the torque generated becomes smaller accordingly, so that the gravity balance of the head 29 is always achieved during the process of adjusting the head 29 upward from the middle position; when the head 29 is adjusted downward from the middle position, the balancing support rod 5 gradually works, and the torque generated by the head 29 becomes larger and larger. In this process, the deformation of the force balancing spring 13 becomes larger, that is, the tension increases, and the torque generated also becomes larger accordingly, and the gravity balance of the head 29 is still achieved. That is, in the process of the machine head 29 moving from the highest point to the lowest point, the torque generated becomes larger and larger, and in this process, the tension of the force balancing spring 13 also becomes larger due to deformation, and the torque generated becomes larger and larger to balance the torque generated by the machine head 29, so that the device can achieve a force balance state at each position of the machine head 29 adjustment.

[0090] The installation of the machine head mounting base 4 is achieved through the machine arm 3 and the balancing support rod 5 and is equipped with a balancing and labor-saving device. After the machine head 29 is installed, during the process of swinging the machine head 29 up and down, the torque of the force balancing spring 13 acting on the machine arm 3 will offset the torque of the machine head 29 acting on the machine arm 3, that is, the tension generated by the deformation of the force balancing spring 13 can offset the self-gravity of the machine head 29, so that the up and down position adjustment of the machine head 29 can be achieved by applying only a small external force, and after the adjustment, as the external force is removed, the machine head 29 achieves stillness in the current adjustment position under the action of the balancing force, thereby making the up and down adjustment operation of the machine head 29 labor-saving, flexible and convenient.

[0091] like Figure 6 , Figure 7 , Fig. 9 , Fig.11 and 15 As shown together, in this embodiment, the head mounting seat 4 is a U-shaped seat structure, which is convenient for connecting and installing various components.

[0092] like Figures 6 to 13 As shown together, in this embodiment, the back of the machine head mounting seat 4 is fixedly installed with a first fixed plate 18 and a second fixed plate 19, the first fixed plate 18 is located between the second fixed plate 19 and the machine head mounting seat 4, and a hanging plate limit seat 20 is also fixedly installed on the machine head mounting seat 4, the hanging plate limit seat 20 penetrates the machine head mounting seat 4 and passes through the first fixed plate 18 and the second fixed plate 19 in sequence, and the machine head 29 mounting assembly is rotatably installed at the end of the hanging plate limit seat 20.

[0093] The rotary locking mechanism includes a pressure plate 21, a friction locking block 22 and a locking handle 23. The pressure plate 21 is fixedly connected to the machine head 29 mounting assembly, and the pressure plate 21 is located between the first fixed plate 18 and the second fixed plate 19. The second fixed plate 19 is provided with a slot hole that matches the friction locking block 22. The friction locking block 22 is slidably installed on the second fixed plate 19 through the slot hole. The threaded end of the locking handle 23 passes through the machine head mounting seat 4, the first fixed plate 18 and the second fixed plate 19 in sequence, and is threadedly connected with the friction locking block 22.

[0094] The machine head 29 mounting assembly includes a first fixed plate 24 and a second fixed plate 25. The first fixed plate 24 is rotatably mounted on the hanging plate limit seat 20. The pressure plate 21 is fixedly mounted on one side of the first fixed plate 24. The second fixed plate 25 is fixedly mounted on the other side of the first fixed plate 24 by means of rivet columns 26 and first mounting screws 27. A gap is formed between the rivet columns 26 and the first fixed plate 24 for the hanger 28 to be clamped. The machine head 29 is fixedly mounted on the hanger 28. A positioning slot 2801 matching the outer diameter of the rivet column 26 is provided on the hanger 28. The hanger 28 is clamped between the second fixed plate 25 and the first fixed plate 24 by means of the positioning slot 2801 and the rivet column 26, and is fixedly connected by means of the second mounting screws 30.

[0095] In this embodiment, the rivet column 26 is fixedly installed on the second fixing plate 25 and is arranged on the side of the second fixing plate 25 facing the first fixing plate 24. The first mounting screw 27 passes through the first fixing plate 24 and is threadedly connected to the rivet column 26. After tightening the first mounting screw 27, the rivet column 26 abuts against the first fixing plate 24, thereby realizing the installation and fixation of the second fixing plate 25.

[0096] The machine head 29 installation assembly provided can not only realize the convenient installation of the machine head 29, but also make the disassembly and assembly operation of the machine head 29 simple and convenient, providing convenience for the maintenance, repair and replacement of the machine head 29. When the machine head 29 is installed, the positioning slot 2801 of the hanger 28 is clamped between the second fixing plate 25 and the first fixing plate 24 corresponding to the position of the rivet column 26. After the hanger 28 is positioned and clamped, the through hole on the hanger 28 is directly opposite to the through hole on the first fixing plate 24 and the threaded hole on the second fixing plate 25. Then the second mounting screw 30 is passed through the first fixing plate 24 and the hanger 28 in sequence and threadedly installed and tightened with the second fixing plate 25, so that the machine head 29 can be firmly installed; when the machine head 29 needs to be repaired, maintained or replaced, the second mounting screw 30 is first removed, and then the hanger 28 is lifted from the bottom to realize the disassembly of the machine head 29.

[0097] In this embodiment, the pressure plate 21 is fixedly installed on one side of the first fixed plate 24 through a number of installation components, and the installation components include a fastening nut 31, a washer 32 and a fastening screw 33. The fastening nut 31 is set through the first fixed plate 24, the washer 32 is sleeved on the fastening nut 31, and the fastening screw 33 passes through the pressure plate 21 and is threadedly connected to the fastening nut 31.

[0098] The rotary locking mechanism is provided. By loosening the locking handle 23, the rotation adjustment of the machine head 29 can be achieved. After the adjustment is completed, the locking handle 23 is tightened again, and the pressure plate 21 is pressed by the friction locking block 22. Under the action of friction force, the pressure plate 21 is locked and positioned, thereby achieving the positioning and fixation of the current shooting angle after the rotation adjustment of the machine head 29.

[0099] In this embodiment, a scale indicator 34 is fixedly installed on the first fixed plate 24, a scale ruler 35 is provided on the first fixed disk 18, and the scale ruler 35 is set on the outer peripheral surface of the first fixed disk 18; the scale ruler 35 and the scale indicator 34 can realize auxiliary adjustment of the rotation of the machine head 29, ensuring that the rotation adjustment of the machine head 29 is more precise.

[0100] In this embodiment, a first limit stop pin 36 is also fixedly installed on the first fixed plate 24. Two first limit stop pins 36 are provided and are correspondingly arranged on one side of the first fixed plate 24. The second fixed plate 19 is located between the two first limit stop pins 36, and a second limit stop pin 37 is fixedly installed on the bottom of the second fixed plate 19. The installed first limit stop pin 36 and second limit stop pin 37 ensure that when the machine head 29 is rotated and adjusted, the machine head 29 can only be rotated and adjusted within an effective working range of 180°, which is convenient and practical.

[0101] like Figures 6 to 14As shown in the figure, the safety device includes a self-locking top column 38, a self-locking spring 39, a self-locking bracket 40, a bracket shaft 41, a self-locking pin 42, a self-locking hanging plate 43 and a self-locking hook 44. The hanging plate limit seat 20 is provided with a mounting hole 2001 and a slide groove 2002 connected to the mounting hole 2001. The self-locking top column 38 is movably inserted into the mounting hole 2001 of the hanging plate limit seat 20 and can pass through the end of the hanging plate limit seat 20. The self-locking spring 39 is sleeved on the self-locking top column 38 and is located between the self-locking top column 38 and the hanging plate limit seat 20. The self-locking bracket 40 uses the support The frame shaft 41 is hingedly installed on the head mounting seat 4, and corresponding strip holes 401 are opened on both sides of the head mounting seat 4, the self-locking pins 42 are respectively connected to one end of the self-locking bracket 40 through the strip holes 401, the self-locking hanging plate 43 is slidably set in the slide groove 2002 of the hanging plate limit seat 20, and the self-locking hanging plate 43 is hingedly installed on the other end of the self-locking bracket 40, the self-locking hook 44 is fixedly installed on one end of the machine arm 3, and the self-locking hook 44 has a hanging platform 4401. When in a safe locking state, the self-locking hanging plate 43 is set against the hanging platform 4401 of the self-locking hook 44.

[0102] In this embodiment, the self-locking bracket 40 includes a U-shaped plate 4001 and a connecting plate 4002. One end of the U-shaped plate 4001 is rotatably mounted on the machine head mounting seat 4 using the bracket shaft 41. The self-locking hanging plate 43 is hingedly mounted on the other end of the U-shaped plate 4001. Two connecting plates 4002 are provided, and are respectively arranged on both sides of the U-shaped plate 4001. One end of the connecting plate 4002 is fixedly connected to the U-shaped plate 4001, and the self-locking pin 42 is installed on the other end of the connecting plate 4002.

[0103] In this embodiment, unlocking marks 402 corresponding to the strip-shaped holes 401 are respectively provided on both sides of the self-locking fixing plate.

[0104] In this embodiment, the safety device further includes a spring safety component for realizing the stopping of the self-locking top column 38 . The spring safety component is disposed on the other side of the first fixing plate 24 .

[0105] The spring safety assembly includes a top column baffle 45 and a tension spring 46. One end of the top column baffle 45 is hingedly mounted on the first fixed plate 24. The two ends of the tension spring 46 are respectively connected to the first fixed plate 24 and the top column baffle 45. Under the action of the tension spring 46, the other end of the top column baffle 45 is arranged corresponding to the mounting hole 2001 of the hanging plate limit seat 20.

[0106] In this embodiment, a spring receiving groove 2401 is opened on the other side of the first fixing plate 24, and a tension spring 46 is arranged in the spring receiving groove 2401 to achieve avoidance of the hanger 28 when the machine head 29 is installed.

[0107] The safety device is provided, because the balancing and labor-saving device is used to offset the gravity of the machine head 29. Therefore, when the machine head 29 is not installed, the top column baffle 45 realizes the blocking of the self-locking top column 38. At this time, the self-locking pin 42 cannot be pushed upward, that is, the locking state of the safety device cannot be released, thereby avoiding the occurrence of safety accidents and ensuring safe use; when the machine head 29 is installed, the hanger 28 will press the top column baffle 45 downward, and the unlocking operation of the safety device can be performed in this state. When in use, the self-locking pin 42 is pushed upward, the self-locking hanging plate 43 is disengaged from the self-locking hook 44, and the self-locking top column 38 is locked. The column 38 is pushed out. At this time, the self-locking spring 39 is in a compressed state. After the self-locking hanging plate 43 is disengaged from the self-locking hook 44, the arm 3 is lifted up to release the lock of the arm 3. Thereafter, the arm 3 can be swung up and down, thereby realizing flexible adjustment of the height of the machine head 29; after the use of the X-ray machine, the arm 3 is pressed down until the hanging platform 4401 of the self-locking hook 44 is located below the self-locking hanging plate 43. Under the elastic force of the self-locking spring 39, the self-locking hanging plate 43 is pushed out by the self-locking top column 38, so that the self-locking hanging plate 43 is again against the hanging platform 4401 of the self-locking hook 44, thereby realizing automatic locking of the arm 3.

[0108] This safety device ensures that the machine head 29 can be used only after it is installed, thus avoiding the occurrence of misoperation and effectively avoiding potential safety hazards during the use of the X-ray machine. When the machine head 29 is installed, the self-locking pin 42 can be pushed up to release the locked state and use the X-ray machine. After use, the machine arm 3 can be automatically locked by pressing it down to the lowest locking position. The operation is simple and convenient, safe and reliable, and after the machine arm 3 is locked, the movement of the X-ray machine is convenient.

[0109] like Fig.15 As shown, the positioning locking mechanism includes a locking shaft 47 fixedly mounted on the end of the arm 3, and a washer 48, a first friction plate 49, a friction plate fixing plate 50 and a second friction plate 51 are mounted on the locking shaft 47, and the arm 3 is rotatably mounted with the head mounting seat 4 through the locking shaft 47, and the washer 48 is respectively arranged between the self-locking hook 44 and the inner side of the head mounting seat 4, and the first friction plate 49 is embedded in one of the washers 48 and is arranged on the side of the washer 48 facing the head mounting seat 4, and the threaded end of the locking shaft 47 passes through the head mounting seat 4 and is threadedly mounted with a locking screw 73, the friction plate fixing plate 50 and the second friction plate 51 are located between the locking screw and the head mounting seat 4, and the second friction plate 51 is embedded in the friction plate fixing plate 50 and is arranged on the side of the friction plate fixing plate 50 facing the head mounting seat 4.

[0110] In this embodiment, the locking shaft 47 is inserted into the end of the machine arm 3 and is positioned and fixed to the machine arm 3 by means of positioning screws.

[0111] In this embodiment, a locking shaft blocking plate 52 is also fixedly mounted on the machine head mounting seat 4 to achieve blocking of the other end of the locking shaft 47 .

[0112] The positioning locking mechanism is provided, and the locking screw is threadedly connected to the locking shaft 47. By tightening the locking screw, the friction plate can be pressed onto the head mounting seat 4. Under the action of the friction force of the friction plate and the balance support rod 5, the rotation between the head mounting seat 4 and the arm 3 is limited, thereby realizing the positioning and fixation of the current position of the arm 3. The positioning operation is simple and convenient. After adjusting the head 29 to the required height position, the positioning locking mechanism is used to position and fix the current adjustment position. The head 29 will not be offset or shaken during the diagnosis process, thereby ensuring accurate diagnosis of the patient.

[0113] like Figure 1 As shown, in this embodiment, a casing 53 covering the bottom of the column 2 is fixedly mounted on the base 1, a control box 54 is provided on the casing 53, and a wire hook 55 for winding and winding the wire is provided on the back of the casing 53.

[0114] like Figure 1 and Figure 2 As shown together, in this embodiment, a push handle 56 is fixedly mounted on the column 2, and the X-ray machine is pushed and pulled by the push handle 56, so as to facilitate the movement of the X-ray machine.

[0115] like Figure 2 As shown, in this embodiment, a dustproof plate 57 is hingedly installed on the top of the column 2, which can follow the movement of the arm 3 when the position of the head 29 is adjusted, and can effectively prevent dust from entering the column 2.

[0116] In this embodiment, a plurality of connection clamps 58 are provided on the arm 3, and the connection clamps 58 are arranged in the length direction of the arm 3 to fix the connection of the head 29, so that the connection of the head 29 is laid neatly and beautifully, while avoiding the influence on the adjustment of the head 29.

[0117] In this embodiment, the column 2 is fixedly installed on the base 1. Of course, the column 2 can be rotatably installed in the casing 53 through structures such as bearings. A positioning hand wheel is threadedly installed on the casing 53. By loosening the positioning hand wheel, the column 2 can be rotated, thereby realizing the circumferential swing adjustment of the machine head 29. After the adjustment is completed, the positioning hand wheel is tightened to realize the positioning and fixation of the current adjustment position, making it more convenient to adjust the orientation of the machine head 29.

[0118] like Figure 1 , Figures 16 to 18 As shown together, the movable wheels include a front steering wheel 59 and a rear load-bearing wheel 60. The front steering wheel 59 is rotatably installed on both sides of one end of the base 1, and the rear load-bearing wheel 60 is rotatably installed on both sides of the other end of the base 1. In this embodiment, the front steering wheel 59 is a universal wheel.

[0119] The braking device includes a pedal shaft 61 rotatably mounted on the base 1, a cam 62 is mounted on one end of the pedal shaft 61, and a brake assembly is respectively provided between the cam 62 and the rear load-bearing wheel 60, the other end of the pedal shaft 61 extends outside the base 1, and a pedal 63 is mounted via a pedal connecting rod.

[0120] The brake assembly includes a brake push rod 65 and a brake seat 69 which are slidably arranged along the axial direction of the rear load-bearing wheel 60. One end of the brake push rod 65 is arranged to abut against the wheel edge of the cam 62 through a pin shaft 66, and the other end of the brake push rod 65 is arranged to abut against the brake seat 69 through a second adjusting bolt 67. A brake disc 70 is fixedly installed on the end of the wheel axle of the rear load-bearing wheel 60. The brake seat 69 is located between the brake disc 70 and the second adjusting bolt 67, and a compression spring 71 is provided between the brake seat 69 and the brake disc 70 for realizing its reset.

[0121] In this embodiment, a limiting cylinder 64 is fixedly installed on the base 1, and the brake push rod 65 is slidably installed in the limiting cylinder 64, and one end of the brake push rod 65 is provided with an avoidance groove for achieving the avoidance of the cam 62, the pin shaft 66 is rotatably installed on one end of the brake push rod 65 and abuts against the cam 62, and the second adjusting bolt 67 is threadedly installed on the other end of the brake push rod 65.

[0122] In this embodiment, a limiting block 68 is fixedly mounted on the base 1 , a second limiting groove matching the limiting block 68 is formed on the brake seat 69 , and the brake seat 69 is slidably mounted on the base 1 through the second limiting groove and the limiting block 68 .

[0123] In this embodiment, a plurality of insertion holes 7001 are evenly arranged along the circumferential direction on one side of the brake disc 70 facing the brake seat 69, and a brake pin 6901 corresponding to the insertion hole 7001 is arranged on one side of the brake seat 69 facing the brake disc 70. When braking, the brake pin 6901 will be respectively inserted into the insertion hole 7001 to brake the rear load-bearing wheel 60, and the braking effect is good.

[0124] With the braking device, after the X-ray machine is moved into position, one of the pedals 63 is stepped on to drive the cam 62 to rotate through the pedal shaft 61, and then the rear load-bearing wheel 60 is braked through the brake assembly, thereby avoiding the displacement of the X-ray machine during use. After the X-ray machine is used, the other pedal 63 is stepped on to reset the cam 62, and under the action of the compression spring 71, the brake assembly is reset, thereby releasing the braking state of the rear load-bearing wheel 60, and the X-ray machine can be moved, which is convenient to use.

[0125] In this embodiment, an auxiliary support rod 72 is fixedly installed on the base 1. The auxiliary support rod 72 is located in the middle position of the other end of the base 1 and extends to the outside of the base 1. When the braking device is repaired and maintained, the auxiliary support rod 72 supports the X-ray machine and protects the foot pedal 63. In addition, when passing through positions such as door thresholds, the X-ray machine can be pulled by the push handle 56 while the auxiliary support rod 72 is carried to facilitate the smooth passage of the X-ray machine.

[0126] The mobile medical X-ray machine based on the above structure is provided with moving wheels and braking devices, which are convenient for movement and braking, and it is not easy to be displaced during use after braking; the head 29 installation assembly is provided, so that the disassembly and assembly of the head 29 is simple and quick; the assembly cooperation of the arm 3, the balance support rod 5 and the balance and labor-saving device can effectively offset the gravity of the head 29, so that the up and down adjustment of the head 29 is flexible and labor-saving; the safety insurance device is provided to ensure that the machine head 29 can be operated only after it is installed, avoiding accidental injury to personnel due to misoperation, and the head 29 is safely locked by the safety insurance device after use, which provides safety protection while facilitating the displacement of the X-ray machine. When in use, move the X-ray machine into position and then brake, then release the locking state of the safety device, so that the azimuth adjustment of the machine head 29 can be achieved. When adjusting, loosen the locking screw to adjust the height of the machine head 29. After the adjustment is completed, re-tighten the locking screw to achieve the positioning and fixation of the current adjusted height. Loosen the locking handle 23 to achieve the rotation adjustment of the machine head 29. After adjusting to the desired shooting angle, re-tighten the locking handle 23 to achieve the positioning and fixation of the current angle, thereby achieving all-round adjustment of the machine head 29 and ensuring accurate shooting and diagnosis of the patient. After use, loosen the locking screw and press the machine head 29 down to the safety locking position, and the safety device can automatically achieve the safety locking of the machine arm 3 to facilitate the movement and displacement of the X-ray machine.

[0127] It should be understood that the purpose of these embodiments is only to illustrate the present invention and is not intended to limit the protection scope of the present invention. In addition, it should also be understood that after reading the technical content of the present invention, those skilled in the art can make various changes, modifications and / or variations to the present invention, and all of these equivalent forms also fall within the protection scope defined by the appended claims of this application.

Claims

1. A mobile medical X-ray machine, characterized in that: The machine comprises a base, on which a moving wheel and a brake device are arranged, and a column is also installed on the base, a machine arm is hingedly installed on the top of the column, a machine head mounting seat is arranged at one end of the machine arm, and the machine head mounting seat is connected to the machine arm through a positioning locking mechanism, and a balancing support rod is arranged directly below the machine arm, the balancing support rod is arranged parallel to the machine arm, and the two ends of the balancing support rod are respectively hingedly connected to the column and the machine head mounting seat; A balancing and labor-saving device is provided in the column, and the other end of the machine arm is connected to the balancing and labor-saving device through a chain; A head mounting assembly is rotatably mounted on the head mounting seat, the head is fixedly mounted on the head mounting assembly through a hanger, and a rotation locking mechanism for positioning the head mounting assembly is provided on the head mounting seat, and a safety device for locking the head mounting seat with the machine arm is also provided on the head mounting seat; A first fixed plate and a second fixed plate are fixedly installed on the back of the machine head mounting seat, the first fixed plate is located between the second fixed plate and the machine head mounting seat, a hanging plate limiting seat is also fixedly installed on the machine head mounting seat, the hanging plate limiting seat passes through the machine head mounting seat and passes through the first fixed plate and the second fixed plate in sequence, and the machine head mounting assembly is rotatably installed at the end of the hanging plate limiting seat; The safety device comprises a self-locking top column, a self-locking spring, a self-locking bracket, a bracket rotating shaft, a self-locking pin, a self-locking hanging plate and a self-locking hook, the hanging plate limiting seat is provided with a mounting hole and a slide groove connected with the mounting hole, the self-locking top column is movably inserted in the mounting hole of the hanging plate limiting seat, the self-locking spring is sleeved on the self-locking top column and is located between the self-locking top column and the hanging plate limiting seat, the self-locking bracket is hingedly installed on the machine head mounting seat by the bracket rotating shaft, and the two sides of the machine head mounting seat are provided with correspondingly arranged strip holes, the self-locking pin is respectively connected with one end of the self-locking bracket through the strip holes, the self-locking hanging plate is slidably arranged in the slide groove of the hanging plate limiting seat, and the self-locking hanging plate is hingedly installed at the other end of the self-locking bracket, the self-locking hook is fixedly installed at one end of the machine arm, and the self-locking hook has a hanging platform, when in a safety locking state, the self-locking hanging plate is against the hanging platform of the self-locking hook; The machine head mounting assembly includes a first fixing plate and a second fixing plate, the first fixing plate is rotatably mounted on the hanging plate limit seat, the pressure plate is fixedly mounted on one side of the first fixing plate, and the second fixing plate is fixedly mounted on the other side of the first fixing plate by using a rivet column and a first mounting screw, and the safety insurance device also includes a spring safety assembly for realizing the self-locking top column stop, and the spring safety assembly is arranged on the other side of the first fixing plate; The spring safety assembly includes a top column baffle and a tension spring, one end of the top column baffle is hingedly mounted on the first fixed plate, the two ends of the tension spring are respectively connected to the first fixed plate and the top column baffle, and under the action of the tension spring, the other end of the top column baffle is arranged corresponding to the mounting hole of the hanging plate limit seat.

2. The mobile medical X-ray machine according to claim 1, characterized in that: The rotary locking mechanism includes a pressure plate, a friction locking block and a locking handle. The pressure plate is fixedly connected to the machine head mounting assembly, and the pressure plate is located between the first fixed plate and the second fixed plate. The second fixed plate is provided with a slot hole that matches the friction locking block. The friction locking block is slidably installed on the second fixed plate through the slot hole. The threaded end of the locking handle sequentially passes through the machine head mounting seat, the first fixed plate and the second fixed plate, and is threadedly connected to the friction locking block.

3. The mobile medical X-ray machine according to claim 2, characterized in that: The second fixing plate forms a gap for the hanger to be mounted between the second fixing plate and the first fixing plate through the rivet column, the machine head is fixedly mounted on the hanger, a positioning slot matched with the outer diameter of the rivet column is provided on the hanger, the hanger is mounted between the second fixing plate and the first fixing plate through the positioning slot and the rivet column, and is fixedly connected by a second mounting screw.

4. The mobile medical X-ray machine according to claim 3, characterized in that: A scale indicator is fixedly mounted on the first fixed plate, a scale ruler is disposed on the first fixed disk, and the scale ruler is disposed on the outer peripheral surface of the first fixed disk.

5. The mobile medical X-ray machine according to claim 4, characterized in that: A first limit stop pin is also fixedly installed on the first fixed plate. Two first limit stop pins are provided and are correspondingly arranged on one side of the first fixed plate. The second fixed plate is located between the two first limit stop pins, and a second limit stop pin is fixedly installed on the bottom of the second fixed plate.

6. The mobile medical X-ray machine according to claim 5, characterized in that: The balancing and labor-saving device comprises a fixed base fixedly mounted on the bottom of the column, a sprocket mounting seat is also fixedly mounted in the column, a balancing spring assembly is arranged between the sprocket mounting seat and the fixed base, and a first sprocket is rotatably mounted on the sprocket mounting seat; The balance spring assembly includes a first spring end piece, a second spring end piece, a force balance spring and a second sprocket, the first spring end piece is connected to the fixed base through a first adjusting bolt, the force balance spring is located between the first spring end piece and the second spring end piece, and the two ends of the force balance spring are respectively fixedly connected to the first spring end piece and the second spring end piece, and the second sprocket is rotatably mounted on the second spring end piece; One end of the chain is connected to the other end of the machine arm, the chain frame is arranged around the second sprocket and meshes with the first sprocket and the second sprocket, and the other end of the chain is connected to the sprocket mounting seat.

7. The mobile medical X-ray machine according to claim 6, characterized in that: The positioning locking mechanism includes a locking shaft fixedly installed on the end of the machine arm, the locking shaft is provided with a washer, a first friction plate, a friction plate fixing plate and a second friction plate, and the machine arm is rotatably installed with the machine head mounting seat through the locking shaft, the washer is respectively arranged between the self-locking hook and the inner side of the machine head mounting seat, the first friction plate is embedded in one of the washers and is arranged on the side of the washer facing the machine head mounting seat, the threaded end of the locking shaft passes through the machine head mounting seat and is threadedly installed with a locking screw, the friction plate fixing plate and the second friction plate are located between the locking screw and the machine head mounting seat, and the second friction plate is embedded in the friction plate fixing plate and is arranged on the side of the friction plate fixing plate facing the machine head mounting seat.

8. The mobile medical X-ray machine according to any one of claims 1 to 7, characterized in that: The moving wheels include a front steering wheel and a rear load-bearing wheel, wherein the front steering wheel is rotatably mounted on both sides of one end of the base, and the rear load-bearing wheel is rotatably mounted on both sides of the other end of the base; The brake device comprises a pedal shaft rotatably mounted on the base, a cam is mounted on one end of the pedal shaft, and a brake assembly is respectively arranged between the cam and the rear load-bearing wheel, and the other end of the pedal shaft extends outside the base and is mounted with a pedal via a pedal connecting rod; The brake assembly includes a brake push rod and a brake seat which are slidably arranged along the axial direction of the rear load-bearing wheel. One end of the brake push rod is arranged to abut against the wheel edge of the cam through a pin shaft, and the other end of the brake push rod is arranged to abut against the brake seat through a second adjusting bolt. A brake disc is fixedly mounted on the end of the wheel axle of the rear load-bearing wheel, the brake seat is located between the brake disc and the second adjusting bolt, and a compression spring is provided between the brake seat and the brake disc to achieve its resetting.

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