Portable X-ray machine

Abstract

The utility model relates to a portable X-ray machine which comprises a foldable base, a telescopic rod, an arm assembly, a main machine base, a ball head connecting piece and a main machine which are connected in sequence. The foldable base is placed on the ground and comprises a base and folding legs evenly distributed on the periphery of the base, and a first screw hole is formed in the center of the base. The folding legs can be folded unidirectionally; the telescopic rod comprises a lower rod and an upper rod; a locking knob is arranged in the middle of the telescopic rod; the arm assembly comprises an upper arm and a front arm which can be connected in a locking mode, and self-locking units are installed in the upper arm and the front arm. The main machine base comprises a fixing base and a screwing cover, the fixing base and the screwing cover are connected through threads, and the fixing base and the screwing cover form a nearly-spherical cavity. Compared with the prior art, the portable radiation device is portable in design, low in radiation dose, wide in application range, capable of being used in complex environments such as slits and the like, capable of improving operation efficiency and reducing labor intensity, easy to carry and convenient to fold.

Description

TECHNICAL FIELD

[0001] The utility model relates to X line machine technical field, especially portable X line machine. BACKGROUND

[0002] The ray machine on the market is difficult to operate and use in the field or narrow space because of its large size and heavy weight. The conventional support mobile ray machine is not very convenient, and the existing ray machine support only plays a role in fixing the equipment, and the convenience of X-ray machine movement and transposition is not considered.

[0003] How to meet the requirements of diagnostic image quality under the premise of small space occupation, low radiation intensity, light weight, strong movement ability and other advantages; and suitable for narrow space and complex environment, such as emergency rescue site or inside medical vehicle. In order to facilitate medical staff to respond and provide diagnosis and treatment services in various scenes, become the urgent clinical problem to be solved. INVENTION CONTENTS

[0004] The utility model discloses a portable X line machine, portable design, low radiation dose, wide application range, can be used in narrow slit and other complex environment, improve work efficiency, reduce labor intensity, adopt chain type pressure bag, first series connection, avoid the problem of traditional water tank structure being bloated, unable to fold, inconvenient to carry, especially avoid the problem of not heavy and not firm, too heavy to carry, and the strip type design can conveniently rotate the telescopic rod winding shape, avoid increasing the workload of up and down carrying due to sleeve connection.

[0005] The utility model provides a portable X line machine, which comprises in sequence: a foldable base, a telescopic rod, an arm assembly, a main seat, a ball head connecting piece and a main machine.

[0006] The foldable base is placed on the ground, and the foldable base comprises a base and foldable legs arranged uniformly around the base, and the base is provided with a first screw hole in the center.

[0007] The telescopic rod comprises a lower rod and an upper rod, and a locking knob is arranged in the middle of the telescopic rod.

[0008] The arm assembly comprises an upper arm and a forearm which can be locked and connected, and a self-locking unit is arranged in the interior of the upper arm and the forearm.

[0009] The main seat comprises a fixed seat and a screw cap, and the fixed seat and the screw cap are connected through threads, and the fixed seat and the screw cap form a near-spherical cavity.

[0010] One end of the ball head connecting piece is provided with a ball head, and the other end is provided with a screw, and the ball head is inserted into the near-spherical cavity of the main seat.

[0011] The host is provided with a second screw hole matched with the screw of the ball head connecting piece, and the ball head is fixedly connected with the host through the screw.

[0012] Further, the lower part of the lower rod is provided with a stud matched with the first screw hole of the base, and the lower rod can be detachably connected.

[0013] Further, the upper end of the upper rod is provided with a fixed lock tooth, and the top is provided with a vertical shaft.

[0014] Further, the fixed seat is provided with a first inner recess and an external thread, the screw cap is provided with a second inner recess and an inner thread matched with the external thread, when the screw cap is screwed into the fixed seat, the first inner recess and the second inner recess form a nearly spherical cavity.

[0015] Further, one end of the folding leg is provided with a first rotating hole rotatably connected with the first rotating shaft on the base, and the other end of the folding leg is provided with a lock seat, and a second rotating shaft is fixedly arranged near the lock seat.

[0016] Further, the folding leg is provided with a pin seat near the first rotating hole, a locking pin is movably arranged on the pin seat, and the locking pin is outwardly extended through a compression spring; the folding leg can be locked through the locking pin arranged in the folding leg.

[0017] Further, the folding leg is provided with a receiving cavity in the middle part; the folding leg is in a cascading form. One end of the folding leg is connected with a single-size smaller folding leg which can be turned over, so that the folding leg is in a segmented cascading form.

[0018] Further, the arm assembly comprises an upper arm, a forearm, an unlocking handle, a handle seat and a self-locking unit.

[0019] The upper arm and the forearm are lockably connected, the other end of the upper arm is provided with a second rotating hole matched with the vertical shaft on the top of the upper rod, so that one end of the arm assembly is mounted on the upper end of the telescopic rod.

[0020] Further, the self-locking unit is provided with two sets, one of which is arranged in the upper arm, the self-locking unit comprises a lock head and a moving rod fixedly connected with the lock head, the moving rod is movably arranged on a stationary seat, the other end of the moving rod is fixedly connected with a steel wire rope, the steel wire rope is arranged in a sleeve, and the two ends of the sleeve are mounted on sleeve seats, one of which is arranged in the upper arm.

[0021] Further, the host comprises an exposure window, a front exposure switch, a distance measuring sensor, a view display window, a parameter window, a parameter adjusting button and a power switch.

[0022] Compared with the prior art, the utility model has the following advantages:

[0023] (1) The portable design not only makes the equipment small, but also has lower radiation dose than traditional large X-ray machines, wide application range, and can be used in complex environments such as narrow gaps. For large areas, X-ray machine scanning imaging can be used. Because the support is composed of a foldable base and a telescopic rod and an arm assembly, it is not necessary to manually provide a cumbersome device for adjusting the horizontal movement or height adjustment of the equipment, which can effectively improve the work efficiency, reduce the labor intensity, realize on-site diagnosis and treatment, and is especially suitable for military field use.

[0024] (2) The chain type pressure bag is connected in series at the head and tail, which avoids the problems of traditional water tank structure, such as being bulky, not foldable, and inconvenient to carry, especially avoiding the problems of not being pressed firmly and not being able to move when being too heavy. The strip type design can conveniently rotate the telescopic rod around the shape, avoiding the additional workload caused by the sleeve connection and the up and down carrying of the water tank. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 FIG. 1 is a schematic diagram of the overall structure of the portable X-ray machine;

[0026] Figure 2 FIG. 2 is a schematic diagram of the overall structure of the foldable base of the portable X-ray machine;

[0027] Figure 3 FIG. 3 is a detailed view of Figure 2

[0028] Figure 4 FIG. 4 is a schematic diagram of the structure of the base of the portable X-ray machine;

[0029] Figure 5 FIG. 5 is a schematic diagram of the structure of the folding leg of the portable X-ray machine;

[0030] Figure 6 FIG. 6 is a schematic diagram of the structure of the telescopic rod of the portable X-ray machine;

[0031] Figure 7 FIG. 7 is a schematic diagram of the structure of the arm assembly of the portable X-ray machine;

[0032] Figure 8 FIG. 8 is a partial sectional view of the arm assembly of the portable X-ray machine;

[0033] Figure 9 FIG. 9 is a schematic diagram of the structure of the self-locking unit in the arm assembly of the portable X-ray machine;

[0034] Figure 10 FIG. 10 is a schematic diagram of the structure of the main base of the portable X-ray machine;

[0035] Figure 11 FIG. 11 is a schematic diagram of the structure of the ball head connector of the portable X-ray machine;

[0036] Figure 12 ​Structure diagram of flower nut of portable X-ray machine;

[0037] Figure 13 Structure diagram of main machine of portable X-ray machine;

[0038] Figure 14 Structure diagram of main machine of portable X-ray machine from another perspective;

[0039] Figure 15 Structure diagram of curved shape design of main machine base of portable X-ray machine;

[0040] Figure 16 Another embodiment of folding leg of portable X-ray machine;

[0041] Figure 17 Structure diagram of chain type pressing bag of portable X-ray machine;

[0042] Figure 18 Structure diagram of shooting interface shown by view display window of main machine of portable X-ray machine;

[0043] Figure 19 Structure diagram of identification processing result shown by view display window of main machine of portable X-ray machine.

[0044] Fig. 1 is a structure diagram of foldable base of portable X-ray machine; Fig. 2 is a structure diagram of telescopic rod of portable X-ray machine; Fig. 3 is a structure diagram of arm assembly of portable X-ray machine; Fig. 4 is a structure diagram of main machine base of portable X-ray machine; Fig. 5 is a structure diagram of ball joint of portable X-ray machine; Fig. 6 is a structure diagram of main machine of portable X-ray machine; Fig. 7 is a structure diagram of chain type pressing bag of portable X-ray machine; Fig. 8 is a structure diagram of folding leg of portable X-ray machine; Fig. 9 is a structure diagram of flower nut of portable X-ray machine; Fig. 10 is a structure diagram of main machine of portable X-ray machine; Fig. 11 is a structure diagram of main machine of portable X-ray machine from another perspective; Fig. 12 is a structure diagram of curved shape design of main machine base of portable X-ray machine; Fig. 13 is another embodiment of folding leg of portable X-ray machine; Fig. 14 is a structure diagram of chain type pressing bag of portable X-ray machine; Fig. 15 is a structure diagram of shooting interface shown by view display window of main machine of portable X-ray machine; Fig. 16 is a structure diagram of identification processing result shown by view display window of main machine of portable X-ray machine. Fig. 1-1 is a structure diagram of foldable base of portable X-ray machine; Fig. 2-1 is a structure diagram of telescopic rod of portable X-ray machine; Fig. 3-1 is a structure diagram of arm assembly of portable X-ray machine; Fig. 4-1 is a structure diagram of main machine base of portable X-ray machine; Fig. 5-1 is a structure diagram of ball joint of portable X-ray machine; Fig. 6-1 is a structure diagram of main machine of portable X-ray machine; Fig. 7-1 is a structure diagram of chain type pressing bag of portable X-ray machine; Fig. 8-1 is another embodiment of folding leg of portable X-ray machine; Fig. 9-1 is a structure diagram of flower nut of portable X-ray machine; Fig. 10-1 is a structure diagram of main machine of portable X-ray machine; Fig. 11-1 is a structure diagram of main machine of portable X-ray machine from another perspective; Fig. 12-1 is a structure diagram of curved shape design of main machine base of portable X-ray machine; Fig. 13-1 is another embodiment of folding leg of portable X-ray machine; Fig. 14-1 is a structure diagram of chain type pressing bag of portable X-ray machine; Fig. 15-1 is a structure diagram of shooting interface shown by view display window of main machine of portable X-ray machine; Fig. 16-1 is a structure diagram of identification processing result shown by view display window of main machine of portable X-ray machine. 1-foldable base; 2-telescopic rod; 3-arm assembly; 4-main machine base; 5-ball joint; 6-main machine; 7-chain type pressing bag; 11-base; 12-folding leg; 111-first screw hole; 112-first rotating shaft; 121-first rotating hole; 122-pin seat; 123-receiving cavity; 124-lock seat; 125-second rotating shaft; 126-pressing spring; 127-locking pin; 131-shaft hole; 132-spring pin; 21-stud; 22-lower rod; 23-locking knob; 24-upper rod; 25-fixing lock tooth; 26-stand shaft; 27-flower nut; 31-upper arm; 32-forearm; 33-unlocking handle; 34-handle seat; 35-self-locking unit; 311-second rotating hole; 312-sleeve seat; 351-lock head; 352-traveling rod; 353-immovable seat; 354-steel wire rope; 355-sleeve; 41-fixing seat; 42-tightening cover; 411-external thread; 412-first inner recess; 421-internal thread; 422-second inner recess; 51-screw; 52-ball head; 61-handle belt; 62-parameter adjustment button; 63-parameter window; 64-power switch; 65-view display window; 66-distance measuring sensor; 67-exposure window; 68-lead exposure switch; 69-second screw hole. DETAILED DESCRIPTION

[0045] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Component models, material names, connection structures, control methods, algorithms, and other features not explicitly described in this technical solution are considered common technical features disclosed in the prior art.

[0046] Example 1

[0047] This embodiment provides a portable X-ray machine, such as Figures 1-12 As shown, it includes the following components connected in sequence: foldable base 1, telescopic rod 2, arm assembly 3, main unit base 4, ball joint connector 5, and main unit 6;

[0048] The foldable base 1 is placed on the ground. The foldable base 1 includes a base 11 and folding legs 12 evenly distributed around the base. The base 11 has a first screw hole 111 at its center. The folding legs 12 can be folded in one direction.

[0049] The telescopic rod 2 includes a lower rod 22 and an upper rod 24, and a locking knob 23 is provided in the middle of the telescopic rod 2;

[0050] The arm assembly 3 includes an upper arm 31 and a forearm 32 that can be locked together, and a self-locking unit 35 is installed inside the upper arm 31 and the forearm 32.

[0051] The main unit 4 includes a fixed base 41 and a screw cap 42, which are connected by threads and form a near-spherical cavity.

[0052] The ball head connector 5 has a ball head 52 at one end and a screw 51 at the other end. The ball head 52 is inserted into the near-spherical cavity of the main unit base 4.

[0053] The main unit 6 is provided with a second screw hole 69 that cooperates with the screw 51 of the ball head connector 5. The ball head 52 is fixedly connected to the main unit 6 by the screw 51.

[0054] In a specific embodiment, the lower part of the lower rod 22 is provided with a stud 21, which engages with the first threaded hole 111 of the base 11 for detachable connection. Additionally, a flower nut 27 is provided at the top of the stud 21 to further reinforce the connection between the lower rod 22 and the base 11, forming a double-nut locking mechanism. Figure 12 As shown.

[0055] In a specific embodiment, the upper rod 24 is provided with a fixing locking tooth 25 at its upper end and a vertical shaft 26 at its top.

[0056] In the specific embodiment, the fixing base 41 is provided with a first inner recess 412 and an outer thread 411, and the screw cap 42 is provided with a second inner recess 422 and an inner thread 421 matched with the outer thread 411. When the screw cap 42 is screwed into the fixing base 41, the first inner recess 412 and the second inner recess 422 form a nearly spherical cavity.

[0057] In the specific embodiment, one end of the folding leg 12 is provided with a first rotating hole 121 rotatably connected with a first rotating shaft 112 on the base 11, and the other end of the folding leg 12 is provided with a lock base 124, and a second rotating shaft 125 is fixed near the lock base 124.

[0058] In the specific embodiment, the folding leg 12 is provided with a pin base 122 near the first rotating hole 121, and a locking pin 127 is movably installed on the pin base 122, and the locking pin 127 extends outwardly through a compression spring 126. The folding leg 12 can be locked by the locking pin 127 provided inside when unfolded.

[0059] In the specific embodiment, the folding leg 12 is provided with a receiving cavity 123 in the middle part, and the folding leg 12 is in a cascading form. One end of the folding leg 12 is connected with a single-size smaller folding leg which can be turned open, so that the folding leg 12 forms a segmented cascading form.

[0060] In the specific embodiment, the arm assembly includes an upper arm 31, a forearm 32, an unlocking handle 33, a handle base 34, and a self-locking unit 35.

[0061] The upper arm 31 and the forearm 32 are lockably connected, and the other end of the upper arm 31 is provided with a second rotating hole 311 matched with a vertical shaft 26 at the top of the upper rod 24, so that one end of the arm assembly 3 is installed at the upper end of the telescopic rod 2.

[0062] In the specific embodiment, the self-locking unit 35 is provided with two sets, one of which is located in the upper arm 31. The self-locking unit 35 includes a lock head 351 and a shifting rod 352 fixedly connected with the lock head 351, the shifting rod 352 is movably installed on a stationary base 353, the other end of the shifting rod 352 is fixedly connected with a steel wire rope 354, the steel wire rope 354 is provided in a sleeve 355, and both ends of the sleeve 355 are installed on sleeve bases 312, one of which is located in the upper arm 31.

[0063] As Figure 13 , 14As shown in the specific embodiment, the host 6 comprises an exposure window 67, a front exposure switch 68, a ranging sensor 66, a view display window 65, a parameter window 63, a parameter adjustment button 62, and a power switch 64. In addition, the host 6 is provided with handle bands 61 on both sides to facilitate handheld operation, i.e. to take the host 6 off the arm assembly 3 for handheld shooting. The handle bands 61 can be flexible adjustable bands or hard plastic handles.

[0064] As shown in the specific embodiment, the host 6 comprises an exposure window 67, a front exposure switch 68, a ranging sensor 66, a view display window 65, a parameter window 63, a parameter adjustment button 62, and a power switch 64. In addition, the host 6 is provided with handle bands 61 on both sides to facilitate handheld operation, i.e. to take the host 6 off the arm assembly 3 for handheld shooting. The handle bands 61 can be flexible adjustable bands or hard plastic handles. Figure 15 As shown in the specific embodiment, the host 6 comprises an exposure window 67, a front exposure switch 68, a ranging sensor 66, a view display window 65, a parameter window 63, a parameter adjustment button 62, and a power switch 64. In addition, the host 6 is provided with handle bands 61 on both sides to facilitate handheld operation, i.e. to take the host 6 off the arm assembly 3 for handheld shooting. The handle bands 61 can be flexible adjustable bands or hard plastic handles. Figure 15 As shown in the specific embodiment, the host 6 comprises an exposure window 67, a front exposure switch 68, a ranging sensor 66, a view display window 65, a parameter window 63, a parameter adjustment button 62, and a power switch 64. In addition, the host 6 is provided with handle bands 61 on both sides to facilitate handheld operation, i.e. to take the host 6 off the arm assembly 3 for handheld shooting. The handle bands 61 can be flexible adjustable bands or hard plastic handles.

[0065] As shown in the specific embodiment, the host 6 comprises an exposure window 67, a front exposure switch 68, a ranging sensor 66, a view display window 65, a parameter window 63, a parameter adjustment button 62, and a power switch 64. In addition, the host 6 is provided with handle bands 61 on both sides to facilitate handheld operation, i.e. to take the host 6 off the arm assembly 3 for handheld shooting. The handle bands 61 can be flexible adjustable bands or hard plastic handles. Figure 16 As shown in the specific embodiment, the host 6 comprises an exposure window 67, a front exposure switch 68, a ranging sensor 66, a view display window 65, a parameter window 63, a parameter adjustment button 62, and a power switch 64. In addition, the host 6 is provided with handle bands 61 on both sides to facilitate handheld operation, i.e. to take the host 6 off the arm assembly 3 for handheld shooting. The handle bands 61 can be flexible adjustable bands or hard plastic handles.

[0066] As shown in the specific embodiment, the host 6 comprises an exposure window 67, a front exposure switch 68, a ranging sensor 66, a view display window 65, a parameter window 63, a parameter adjustment button 62, and a power switch 64. In addition, the host 6 is provided with handle bands 61 on both sides to facilitate handheld operation, i.e. to take the host 6 off the arm assembly 3 for handheld shooting. The handle bands 61 can be flexible adjustable bands or hard plastic handles. Figure 17 As shown in the specific embodiment, the host 6 comprises an exposure window 67, a front exposure switch 68, a ranging sensor 66, a view display window 65, a parameter window 63, a parameter adjustment button 62, and a power switch 64. In addition, the host 6 is provided with handle bands 61 on both sides to facilitate handheld operation, i.e. to take the host 6 off the arm assembly 3 for handheld shooting. The handle bands 61 can be flexible adjustable bands or hard plastic handles.

[0067] Figure 18The schematic diagram of the shooting interface shown in the view display window 65 of the host in the embodiment is shown in the figure, the left side of the figure uses a sequential guide map to show the schematic prompt of the shooting task; the middle part shows the shooting part of the patient and the real-time video image of the patient, the upper part of the middle part shows the patient information, number, etc., so as to facilitate comparison of whether it is the current patient, the lower part of the middle part is the recommended shooting parameter recommended by the AI algorithm for the current environment, such as light, distance, angle, jitter, etc., so as to shoot high-quality images; the right side is a parameter control setting adjustment button and a parameter display of the current setting, the upper part of the right side includes several function tabs, by switching, the middle area of the shooting interface can display a conventional portrait or an X-ray bone image; the right side bar is also provided with a system shutdown soft button and a whole machine system setting button, etc., so as to facilitate the sound, light and electric parameter system setting of the host 6.

[0068] Figure 19 The schematic diagram of the recognition processing result shown in the view display window 65 of the host in the embodiment is shown in the figure, the left area of the figure shows the exposure and processing of the sequentially shot image into an X-ray image, so as to facilitate the task under different human body postures; the middle is an X-ray image; the right side is an image post-processing panel, including various operation buttons of image processing, such as zooming, symmetry, rotating, etc., which is provided with related parameter adjustment of the corresponding AI processing module, different algorithms can be used for image processing, and the result is displayed in the middle area of the display window; in addition to the system shutdown and whole machine system setting buttons, the right side bar is also provided with an AI processing machine printing task button.

[0069] The components not described in detail in the embodiment are existing components that can be purchased in the public channel.

[0070] The above description of the embodiments is for the convenience of the ordinary skilled in the art to understand and use the utility model. Those skilled in the art can easily make various modifications to these embodiments, and apply the general principles described herein to other embodiments without creative labor. Therefore, the utility model is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the utility model should be within the protection scope of the utility model.

Claims

1. A portable X-ray apparatus characterized by comprising: It comprises sequentially connected: foldable base (1), telescopic rod (2), arm assembly (3), main seat (4), ball head connecting piece (5) and main machine (6); The foldable base (1) is placed on the ground, the foldable base (1) comprises a base (11) and a folding leg (12) arranged around the base, the center of the base (11) is provided with a first screw hole (111); The folding leg (12) can be folded in one direction; The telescopic rod (2) comprises a lower rod (22) and an upper rod (24), and the telescopic rod (2) is provided with a locking knob (23) in the middle; The arm assembly (3) comprises: lockable connection of upper arm (31) and forearm (32), the inside of the upper arm (31) and forearm (32) is provided with self-locking unit (35); The main seat (4) comprises a fixed seat (41) and a screw cover (42), the fixed seat (41) and the screw cover (42) are connected by threads, and the fixed seat (41) and the screw cover (42) form a near spherical cavity; The ball head connecting piece (5) is provided with a ball head (52) at one end and a screw (51) at the other end, and the ball head (52) is inserted into the near spherical cavity of the main seat (4); The main machine (6) is provided with a second screw hole (69) at the lower end matched with the screw (51) of the ball head connecting piece (5), and the ball head (52) is fixedly connected with the main machine (6) through the screw (51).

2. The portable x-ray machine of claim 1, wherein, The lower part of the lower rod (22) is provided with a stud (21), which is matched with the first screw hole (111) of the base (11), and can be detachably connected.

3. The portable x-ray machine of claim 1, wherein, The upper end of the upper rod (24) is provided with a fixed lock tooth (25), and the top is provided with a vertical shaft (26).

4. The portable x-ray machine of claim 1, wherein, The fixed seat (41) is provided with a first inner recess (412) and an outer thread (411), and the screw cover (42) is provided with a second inner recess (422) and an inner thread (421) matched with the outer thread (411), when the screw cover (42) is screwed into the fixed seat (41), the first inner recess (412) and the second inner recess (422) form a near spherical cavity.

5. The portable x-ray machine of claim 1, wherein, One end of the folding leg (12) is provided with a first rotating hole (121), and the first rotating hole (121) is rotatably connected with the first rotating shaft (112) on the base (11); The other end of the folding leg (12) is provided with a lock seat (124), and a second rotating shaft (125) is fixed near the lock seat (124).

6. The portable x-ray machine of claim 1, wherein, The folding leg (12) is provided with a pin seat (122) near the first rotating hole (121), a locking pin (127) is movably installed on the pin seat (122), and the locking pin (127) is outwardly extended through the compression spring (126); The folding leg (12) can be locked by the locking pin (127) arranged in the folding leg (12).

7. The portable x-ray machine of claim 1, wherein, The folding leg (12) is provided with a receiving cavity (123) in the middle; The folding leg (12) is in cascade form.

8. The portable x-ray machine of claim 1, wherein, The arm assembly (3) comprises: upper arm (31), forearm (32), unlocking handle (33), handle seat (34) and self-locking unit (35); The upper arm (31) and the forearm (32) are lockably connected, and the other end of the upper arm (31) is provided with a second rotating hole (311) matched with the vertical shaft (26) at the top of the upper rod (24), so that one end of the arm assembly (3) is mounted on the upper end of the telescopic rod (2).

9. The portable x-ray machine of claim 1, wherein, The self-locking unit (35) is provided with two sets, one of which is located in the upper arm (31), and the self-locking unit (35) comprises a lock head (351) and a running rod (352) fixedly connected with the lock head (351), the running rod (352) is movably mounted on a fixed seat (353), the other end of the running rod (352) is fixedly connected with a steel wire rope (354), the steel wire rope (354) is arranged in a sleeve (355), and the two ends of the sleeve (355) are mounted on sleeve seats (312), one of which is located in the upper arm (31).

10. The portable x-ray machine of claim 1, wherein, The main machine (6) comprises an exposure window (67), a front exposure switch (68), a ranging sensor (66), a view display window (65), a parameter window (63), a parameter adjusting button (62) and a power switch (64).

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