Portable folding support frame for radiographic apparatus

Abstract

The utility model provides a portable folding support frame for ray machine, including center ring frame, sets up lifting mechanism in center ring frame, the lower part of lifting mechanism hangs and sets ray machine, the outer periphery of center ring frame sets up a plurality of folding mechanism, folding mechanism connects support leg subassembly, folding mechanism includes connecting rod, piston cylinder, piston rod and compression spring, the inner end of connecting rod forms the hinged joint with center ring frame, the outer end of connecting rod is set up slot, the notch of slot is curved and extends to the inner side of connecting rod by the outer end of connecting rod, the inner side of connecting rod recesses and the notch intercommunication step groove no. 1, the outer end of connecting rod recesses and the notch intercommunication step groove no. 2, and the notch intercommunication between step groove no. 1 and step groove no. 2;The one end of piston cylinder sets up the slit, and the other end sets up the open mouth, compression spring sleeve connects piston rod, piston rod extends into piston cylinder and forms telescopic rod head by the slit and goes out, makes compression spring and presses in the inner wall of piston cylinder, telescopic rod head extends into slot and forms the hinged joint, and piston cylinder embeds step groove no. 1 or step groove no. 2 and forms the elastic clamping.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to a tripod, particularly a portable folding support frame for X-ray machines. Background Technology

[0002] In the field of DR, X-ray machines are usually supported by a support frame, which needs to be portable, easy to open and close, and easy to store.

[0003] The existing X-ray machine supports have the following main defects:

[0004] 1) Large size: Existing portable stands are bulky, resulting in a large amount of operating space;

[0005] 2) Inconvenient disassembly, assembly, and transportation: Existing portable stands are composed of a large number of parts, requiring a lot of time for disassembly and assembly;

[0006] 3) Limited usage scenarios: Existing portable brackets are mainly used in fixed areas. Due to their large size and difficulty in disassembly and assembly, they are not convenient to take to the field. Utility Model Content

[0007] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a portable folding support frame for X-ray machines.

[0008] The objective of this utility model can be achieved through the following technical solution: A portable folding support frame for an X-ray machine includes a central ring frame, a lifting mechanism is provided inside the central ring frame, and the X-ray machine is suspended below the lifting mechanism. Several folding mechanisms are provided around the outer periphery of the central ring frame, and each folding mechanism is connected to a support leg assembly. Each folding mechanism includes a connecting rod, a piston cylinder, a piston rod, and a compression spring. The inner end of the connecting rod is hinged to the central ring frame, and a slot is formed at the outer end of the connecting rod. The opening of the slot bends and extends from the outer end of the connecting rod to the inner side of the connecting rod, and the inner side of the connecting rod is recessed to the slot opening. A first stepped groove is connected to the connecting rod. A second stepped groove is formed by the groove opening and the outer end of the connecting rod is recessed. The first stepped groove and the second stepped groove are connected by the groove opening. A slit is provided at one end of the piston cylinder and an open end is provided at the other end. The compression spring is sleeved on the piston rod, so that one end of the compression spring forms a fixed end and the other end forms a free end. The piston rod extends into the piston cylinder and extends out from the slit to form a telescopic rod head, so that the free end of the compression spring presses against the inner wall of the piston cylinder. The telescopic rod head extends into the slit to form a hinge. The piston cylinder is embedded in the first stepped groove or the second stepped groove to form an elastic snap.

[0009] In the aforementioned portable folding support frame for X-ray machines, the central ring frame includes an upper flange and a lower flange that are interlocked vertically. An installation cavity is provided between the interlocked upper flange and the lower flange. A through hole is provided at the center of the upper flange and the lower flange. The through hole communicates with the installation cavity through a connection port. A sleeve is provided on the outer periphery of the interlocked upper flange and the lower flange. A transition hole is provided horizontally on the upper edge of the sleeve.

[0010] In the aforementioned portable folding support frame for X-ray machines, the inner end of the connecting rod is provided with a notch, the outer side of the notch has a top wall, the inner side of the notch is an open opening, and the two protruding shafts are arranged opposite each other in the notch. The two protruding shafts extend into the two ends of the adapter hole of the sleeve to form a swing connection. The top wall and the top of the sleeve form a horizontal limiting block, and the open opening and the bottom of the sleeve form an enclosing fit.

[0011] In the aforementioned portable folding support frame for X-ray machines, the piston rod includes a circular plate with an elongated plate standing upright on it. The elongated plate passes through the compression spring and the slit. One end of the circular plate abuts against the compression spring to form a fixed end. A pin is inserted into the connecting rod and the elongated plate to form a rotatable connection. A retaining spring is provided on the pin to form a fixed assembly.

[0012] In the aforementioned portable folding support frame for X-ray machines, the leg assembly includes a first leg and a second leg that are nested together. The first leg and the second leg are fixed together by a latch. The latch includes a locking ring with a notch. Locking plates are protruding from both sides of the notch. Locking holes are correspondingly provided on the locking plates. Bolt assemblies pass through the locking holes to form a locked or loosened state. The piston cylinder has a threaded hole at its end, and the second leg extends into the threaded hole to form a threaded engagement connection.

[0013] In the aforementioned portable folding support frame for X-ray machines, the lifting mechanism includes a crank handle, a worm gear, a worm wheel, and a rack. The rack passes through a through hole in the central ring frame. The worm wheel is hinged to the mounting cavity of the central ring frame. The worm gear is installed in the mounting cavity of the central ring frame. The end of the worm gear is fixedly connected to the crank handle. The crank handle extends out of the central ring frame to form a rotatable connection. The worm gear and the worm wheel form a toothed connection. The worm wheel and the rack form a toothed connection at the connection port.

[0014] In the aforementioned portable folding support frame for X-ray machines, the top of the rack is sequentially fitted with an upper shock-absorbing rubber ring and a fall-prevention pad from bottom to top. The fall-prevention pad is fixed to the top of the rack by screws. The diameters of the upper shock-absorbing rubber ring and the fall-prevention pad are both larger than the diameter of the through hole of the central ring frame.

[0015] In the aforementioned portable folding support frame for X-ray machines, the bottom end of the rack is sequentially fitted with a lower shock-absorbing rubber ring, a wall mount, a disc damping shaft, and a hook from top to bottom. The wall mount is fixed to the lower shock-absorbing rubber ring by screws, and the disc damping shaft is fixed to the wall mount by screws.

[0016] In the aforementioned portable folding support frame for X-ray machines, the disc damping shaft includes, from top to bottom, a first connector, a damping disc, and a second connector. The damping disc enables the first connector and the second connector to be rotatably connected. The first connector is fixed to the wall mount by screws, and the second connector is fixed to the hook by screws.

[0017] In the aforementioned portable folding support frame for X-ray machines, the hook has a slot, one side of which is a connecting opening and the other side is a slot wall. A handle is provided on the top of the X-ray machine, and the handle is inserted into the slot through the connecting opening and fixed with screws.

[0018] Compared with existing technologies, the portable folding support frame for this X-ray machine has the following advantages:

[0019] 1. Enhanced Convenience and Flexibility: The support frame features a folding mechanism design, making it easy to carry and store. Users can quickly fold or unfold the support frame, saving space and improving ease of use. The coordinated design of the folding mechanism's connecting rod, piston cylinder, and piston rod makes the conversion process between using and folding the support frame more efficient and smooth.

[0020] 2. High stability: The structural design of the central ring frame and support leg assembly ensures the stability of the support frame. In particular, the locking design allows the length of the support legs to be adjusted. The adjusted support frame can ensure sufficient stability, preventing the X-ray machine from tilting or collapsing during use and ensuring the safe use of the X-ray machine.

[0021] 3. Optimized Lifting Function: The lifting mechanism, through the cooperation of a crank, worm gear, worm wheel, and rack, enables the support frame to be raised and lowered smoothly. The greatest advantage of this design is that it allows for precise adjustment of the X-ray machine's height. Combined with shock-absorbing rubber rings and anti-fall pads, it effectively reduces vibrations or impacts that may occur during lifting, ensuring operational stability.

[0022] 4. Robust connection and damage resistance: In the design of the support frame, the connection points of the central ring frame, connecting rod, piston rod, piston cylinder and outriggers all use robust and reliable hinge and snap-fit ​​technology. Through fixed assembly methods such as threads, pins, and snap rings, the tight connection of each component is ensured, which enhances the shock resistance and durability of the support frame.

[0023] 5. Safety Design: The design of the support frame, especially the connection between the end of the piston cylinder and the outrigger assembly, the cooperation between the rack and the anti-fall pad, and the use of the disc damping shaft, all take into account safety and protection, avoiding the support frame from falling off, accidentally sliding or other potential safety hazards during the lifting process, thus improving the safety during use.

[0024] 6. Strong compatibility: The support frame is equipped with a hook design to adapt to different sizes of X-ray machines. With the slotted handle of the X-ray machine, the applicability of the support frame can be expanded, making it compatible with a variety of X-ray machine models and meeting the needs of different users.

[0025] In summary, this portable folding support frame for X-ray machines combines a folding design, lifting function, stability assurance, and multiple safety protection measures. It has the advantages of simple structure, convenience and efficiency, safety and reliability, and wide applicability. It can significantly improve the convenience and safety of X-ray machine use, making it a high-performance and practical X-ray machine support device. Attached Figure Description

[0026] Figure 1 This is a 3D view showing the working state of the portable folding support frame for this X-ray machine.

[0027] Figure 2 This is an exploded view of the portable folding support frame for this X-ray machine in operation.

[0028] Figure 3 This is a cross-sectional view showing the working state of the folding mechanism in the portable folding support frame for this X-ray machine.

[0029] Figure 4 This is a three-dimensional structural diagram of the connecting rod in the portable folding support frame for this X-ray machine.

[0030] Figure 5 This is an enlarged view of the bottom structure of the lifting mechanism in the portable folding support frame for this X-ray machine.

[0031] Figure 6 This is a 3D view of the portable folding support frame for this X-ray machine in its stowed state.

[0032] In the diagram, 1. Central ring frame; 1a. Sleeve; 2. Connecting rod; 2a. Top wall; 2b. Convex shaft; 2c. Slot; 2d. Stepped slot one; 2e. Stepped slot two; 3. Piston cylinder; 4. Piston rod; 5. Compression spring; 6. Support leg one; 7. Support leg two; 8. Lock; 9. Crank handle; 10. Rack; 11. Upper shock-absorbing rubber ring; 12. Anti-fall pad; 13. Lower shock-absorbing rubber ring; 14. Wall mount; 15. Connector one; 16. Damping disc; 17. Connector two; 18. Hook; 19. X-ray machine. Detailed Implementation

[0033] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0034] like Figures 1 to 4 As shown, the portable folding support frame for this X-ray machine includes a central ring frame 1. A lifting mechanism is installed inside the central ring frame 1, and the X-ray machine 19 is suspended below the lifting mechanism. Several folding mechanisms are installed around the outer periphery of the central ring frame 1. The folding mechanisms are connected to the support leg assembly. The folding mechanisms include a connecting rod 2, a piston cylinder 3, a piston rod 4, and a compression spring 5. The inner end of the connecting rod 2 is hinged to the central ring frame 1. A slot 2c is opened at the outer end of the connecting rod 2. The opening of the slot 2c bends and extends from the outer end of the connecting rod 2 to the inner side of the connecting rod 2. A stepped groove 2 is recessed on the inner side of the connecting rod 2 and communicates with the slot opening. d, the outer end of the connecting rod 2 is recessed and connected to the groove opening, the stepped groove 2e is connected to the stepped groove 2d and the stepped groove 2e is connected by the groove opening; one end of the piston cylinder 3 is provided with a slit and the other end is provided with an open opening, the compression spring 5 is sleeved on the piston rod 4, so that one end of the compression spring 5 forms a fixed end and the other end forms a free end, the piston rod 4 extends into the piston cylinder 3 and extends out from the slit to form a telescopic rod head, so that the free end of the compression spring 5 presses against the inner wall of the piston cylinder 3, the telescopic rod head extends into the groove 2c to form a hinge, and the piston cylinder 3 is embedded in the stepped groove 2d or the stepped groove 2e to form an elastic snap.

[0035] like Figure 3 As shown, preferably, the central ring frame 1 includes an upper flange and a lower flange that interlock vertically. An installation cavity is provided between the interlocking upper and lower flanges. A through hole is provided at the center of the upper and lower flanges, and the through hole communicates with the installation cavity through a connection port. A sleeve 1a is provided on the outer periphery of the interlocking upper and lower flanges, and a transition hole is provided horizontally along the upper edge of the sleeve 1a. Both the upper and lower flanges are annular semi-shells, each with an annular cavity. After the upper and lower flanges are interlocked, the two annular cavities are joined to form the installation cavity, and the central holes of the two annular semi-shells communicate to form a through hole.

[0036] like Figure 3 and 4 As shown, preferably, the inner end of the connecting rod 2 is provided with a notch, the outer side of the notch has a top wall 2a, the inner side of the notch is an open opening, and the two protruding shafts 2b are provided opposite to each other in the notch. The two protruding shafts 2b extend into the two ends of the adapter hole of the sleeve 1a to form a swing connection. The top wall 2a and the top of the sleeve 1a form a horizontal limiting block, and the open opening and the bottom of the sleeve 1a form an enclosing fit.

[0037] Two convex shafts 2b pass through the adapter hole and rotate within a certain angle range around the central axis of the adapter hole. When the connecting rod 2 rotates to a horizontal position, it is blocked and positioned by the top wall 2a against the top of the sleeve 1a to prevent the connecting rod 2 from rotating upward and thus provide support. When the connecting rod 2 rotates to a vertical position, the opening inside the notch provides clearance space so that the sleeve 1a can enter the notch, thereby achieving the vertical folding state of the connecting rod 2.

[0038] like Figure 2 and 3 As shown, preferably, the piston rod 4 includes a circular plate, on which a long strip plate is erected. The long strip plate passes through the compression spring 5 and the slit. One end of the circular plate abuts against the compression spring 5 to form a fixed end. A pin is inserted into the connecting rod 2 to form a rotatable connection with the long strip plate. A retaining spring is provided on the pin to form a fixed assembly.

[0039] The compression spring 5 is installed and fixed by means of a circular plate corresponding to the cylindrical structure of the compression spring 5. A long strip plate is inserted into the slot 2c by means of a flat opening structure of the slot 2c and rotates along the opening, while simultaneously confining the cylindrical piston cylinder 3 outside the slot 2c. The installation of the pin and the retaining ring is prior art and will not be described in detail here.

[0040] like Figure 1 and 2 As shown, preferably, the outrigger assembly includes an inner and outer outrigger 6 and an outer outrigger 7, which are fixed together by a latch 8. The latch 8 includes a locking ring with a notch, and locking plates protruding from both sides of the notch. Locking holes are correspondingly opened on the locking plates, and bolt assemblies are inserted into the locking holes to form a locked or loosened state. The piston cylinder 3 has a threaded hole at its end, and the outer outrigger 7 extends into the threaded hole to form a threaded engagement connection.

[0041] Loosen the bolt assembly to increase the diameter of the locking ring, loosening the latch 8 and allowing the first outrigger 6 to extend and retract along the second outrigger 7, thereby adjusting the overall length of the outrigger assembly. Once the overall length is adjusted, tighten the bolt assembly to decrease the diameter of the locking ring, locking the latch 8 and fixing the first outrigger 6 and the second outrigger 7 together, thus ensuring the stability of the support. The structure and function of the latch 8 are existing technologies and will not be described in detail here.

[0042] like Figure 1 and 2 As shown, preferably, the lifting mechanism includes a crank handle 9, a worm, a worm wheel, and a rack 10. The rack 10 passes through the through hole of the central ring frame 1. The worm wheel is hinged in the mounting cavity of the central ring frame 1. The worm is installed in the mounting cavity of the central ring frame 1. The end of the worm is fixedly connected to the crank handle 9. The crank handle 9 extends out of the central ring frame 1 to form a rotatable connection. The worm and the worm wheel form a toothed connection. The worm wheel and the rack 10 form a toothed connection at the connection port.

[0043] The drive handle 9 rotates forward, synchronously driving the worm gear to rotate forward, which in turn drives the rack 10 to rise through gear meshing. The drive handle 9 rotates in reverse, synchronously driving the worm gear to rotate in the opposite direction, which in turn drives the rack 10 to fall through gear meshing.

[0044] like Figure 1 and 2 As shown, preferably, the top of the rack 10 is fitted with an upper shock-absorbing rubber ring 11 and a fall-prevention pad 12 sequentially from bottom to top. The fall-prevention pad 12 is fixed to the top of the rack 10 with screws. The diameters of both the upper shock-absorbing rubber ring 11 and the fall-prevention pad 12 are larger than the diameter of the through hole of the central ring frame 1. When the rack 10 continues to descend, the upper shock-absorbing rubber ring 11 contacts the central ring frame 1 to provide cushioning and avoid vibration caused by strong impact; the fall-prevention pad 12 restricts the rack 10 from continuing to descend and prevents the rack 10 from detaching from the central ring frame 1.

[0045] like Figure 1 , 2 As shown in Figure 5, preferably, the bottom end of the rack 10 is sequentially fitted with a lower shock-absorbing rubber ring 13, a wall mount 14, a disc damping shaft, and a hook 18 from top to bottom. The wall mount 14 is fixed to the lower shock-absorbing rubber ring 13 by screws, and the disc damping shaft is fixed to the wall mount 14 by screws.

[0046] Preferably, the disc damping shaft includes, from top to bottom, a first connector 15, a damping disc 16, and a second connector 17. The first connector 15 and the second connector 17 are rotatably connected through the damping disc 16. The first connector 15 is fixed to the wall mount 14 by screws, and the second connector 17 is fixed to the hook 18 by screws.

[0047] The disc damping pivot is an existing product that can be purchased and used directly, so it will not be described in detail here. The disc damping pivot can not only connect the upper and lower structures, but also allow the hook 18 to rotate, and provide damping to improve stability.

[0048] Preferably, the hook 18 has a slot, with one side of the slot being a connecting opening and the other side being a slot wall. A handle is provided on the top of the X-ray machine 19, which is inserted into the slot through the connecting opening and fixed with screws. The slot allows for the use of X-ray machine 19 handles of different sizes, thereby expanding the support frame's wide range of compatibility with X-ray machines 19.

[0049] The portable folding support frame for this X-ray machine is used as follows:

[0050] like Figure 1 and 2As shown, in the working state: Flip the connecting rod 2 outwards, causing its top wall 2a to abut against the top of the sleeve 1a, forming a horizontal position. Pull the piston cylinder 3 outwards to disengage it from the stepped groove 2e, simultaneously compressing the compression spring 5 to extend the piston rod 4 outwards from the piston cylinder 3. Flip the piston rod 4 inwards, swinging it from stepped groove 2e to stepped groove 2d. Release the piston cylinder 3, and the spring force of the compression spring 5 drives the piston rod 4 to retract part of the piston cylinder 3. The piston cylinder 3 then elastically engages with stepped groove 2d, causing the support leg assembly and connecting rod 2 to form a bent support state. Loosen the locking buckle 8, adjust the extension length of the support leg 6 to adjust the support height, and tighten the locking buckle 8 for fixation. Hang the X-ray machine 19 on the hook 18 for fixation. Rotate the rocker handle 9 to adjust the height position of the rack 10 through gear meshing transmission. After determining the height, the worm gear and worm wheel form a self-locking mechanism.

[0051] like Figure 6 As shown, in the storage state: remove the X-ray machine 19 from the hook 18. Pull the piston cylinder 3 outward to disengage it from the step groove 2d. Simultaneously compress the compression spring 5 to extend the piston rod 4 outward from the piston cylinder 3. Flip the piston rod 4 outward, swinging it from the step groove 2d to the step groove 2e. Release the piston cylinder 3. The spring force of the compression spring 5 drives the piston rod 4 to retract part of the piston cylinder 3. Thus, the piston cylinder 3 elastically engages in the step groove 2e, making the support leg assembly and connecting rod 2 form a straight state. Flip the connecting rod 2 inward so that the sleeve 1a enters the recess of the connecting rod 2, thereby achieving the vertically retracted state of the connecting rod 2.

[0052] The specific embodiments described herein are merely illustrative examples of the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or substitute them with similar methods, without departing from the spirit of this invention or exceeding its defined scope. Although this invention has been detailed and described in the accompanying drawings and foregoing description, such descriptions are considered illustrative or exemplary rather than restrictive. It should be understood that changes and modifications can be made by those skilled in the art within the scope of the following claims. Specifically, this invention covers additional embodiments having any combination of features from the different embodiments described above. With regard to the use of the expressions "general" or "substantially," this patent application should be understood to disclose that the disclosure equally fully satisfies these features and values, i.e., without any of the foregoing characterizations as "general" or "substantially."

[0053] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A portable folding support frame for a radiographic apparatus, comprising a central ring frame, a lifting mechanism is arranged in the central ring frame, a radiographic apparatus is hung below the lifting mechanism, a plurality of folding mechanisms are arranged on the outer periphery of the central ring frame, and a support leg assembly is connected to the folding mechanisms, characterized in that, The folding mechanism includes a connecting rod, a piston cylinder, a piston rod, and a compression spring. The inner end of the connecting rod is hinged to the central ring frame. The outer end of the connecting rod has a slot. The opening of the slot bends and extends from the outer end of the connecting rod to the inner side of the connecting rod. The inner side of the connecting rod has a stepped groove 1 that communicates with the slot opening. The outer end of the connecting rod has a stepped groove 2 that communicates with the slot opening. The stepped groove 1 and the stepped groove 2 are connected by the slot opening. One end of the piston cylinder has a slit, and the other end has an open opening. The compression spring is sleeved on the piston rod, so that one end of the compression spring forms a fixed end and the other end forms a free end. The piston rod extends into the piston cylinder and extends out from the slit to form a telescopic rod head, so that the free end of the compression spring presses against the inner wall of the piston cylinder. The telescopic rod head extends into the slot to form a hinge. The piston cylinder is embedded in the stepped groove 1 or the stepped groove 2 to form an elastic snap.

2. The portable folding support frame for X-ray machines as described in claim 1, characterized in that, The central ring frame includes an upper flange and a lower flange that are interlocked vertically. An installation cavity is provided between the interlocked upper flange and the lower flange. A through hole is provided at the center of the upper flange and the lower flange. The through hole communicates with the installation cavity through a connection port. A sleeve is provided on the outer periphery of the interlocked upper flange and the lower flange. A transition hole is provided horizontally on the upper edge of the sleeve.

3. The portable folding support frame for X-ray machines as described in claim 2, characterized in that, The inner end of the connecting rod is provided with a notch, the outer side of the notch has a top wall, the inner side of the notch is an open opening, and the two protruding shafts are arranged opposite each other in the notch. The two protruding shafts extend into the two ends of the adapter hole of the sleeve to form a swing connection. The top wall and the top of the sleeve form a horizontal limiting block, and the open opening and the bottom of the sleeve form an enclosing fit.

4. The portable folding support frame for X-ray machines as described in claim 1, characterized in that, The piston rod includes a circular plate with an elongated plate standing on it. The elongated plate passes through the compression spring and the slit. One end of the circular plate abuts against the compression spring to form a fixed end. A pin is inserted into the connecting rod and the elongated plate to form a rotatable connection. A retaining spring is provided on the pin to form a fixed assembly.

5. The portable folding support frame for X-ray machines as described in claim 1, characterized in that, The outrigger assembly includes an inner and outer outrigger, a first outrigger and a second outrigger, which are fixed together by a latch. The latch includes a locking ring with a notch, and locking plates protrude from both sides of the notch. Locking holes are correspondingly provided on the locking plates, and bolt assemblies pass through the locking holes to form a locked or loosened state. The piston cylinder has a threaded hole at its end, and the second outrigger extends into the threaded hole to form a threaded engagement connection.

6. The portable folding support frame for X-ray machines as described in claim 2, characterized in that, The lifting mechanism includes a crank handle, a worm gear, a worm wheel, and a rack. The rack passes through a through hole in the central ring frame. The worm wheel is hinged to the mounting cavity of the central ring frame. The worm gear is installed in the mounting cavity of the central ring frame. The end of the worm gear is fixed to the crank handle. The crank handle extends out of the central ring frame to form a rotatable connection. The worm gear and the worm wheel form a toothed connection. The worm wheel and the rack form a toothed connection at the connection port.

7. The portable folding support frame for X-ray machines as described in claim 6, characterized in that, The top of the rack is fitted with an upper shock-absorbing rubber ring and a fall-prevention pad from bottom to top. The fall-prevention pad is fixed to the top of the rack by screws. The diameters of the upper shock-absorbing rubber ring and the fall-prevention pad are both larger than the diameter of the through hole of the central ring frame.

8. The portable folding support frame for X-ray machines as described in claim 6, characterized in that, The bottom end of the rack is sequentially fitted with a lower shock-absorbing rubber ring, a wall mount, a disc damping shaft, and a hook from top to bottom. The wall mount is fixed to the lower shock-absorbing rubber ring by screws, and the disc damping shaft is fixed to the wall mount by screws.

9. The portable folding support frame for X-ray machines as described in claim 8, characterized in that, The disc damping shaft comprises, from top to bottom, a first connector, a damping disc, and a second connector. The damping disc enables the first connector and the second connector to be rotatably connected. The first connector is fixed to the wall mount by screws, and the second connector is fixed to the hook by screws.

10. The portable folding support frame for X-ray machines as described in claim 8, characterized in that, The hook has a slot, one side of which is a connecting opening and the other side is a groove wall. The top of the X-ray machine is provided with a handle, which is inserted into the slot through the connecting opening and fixed with screws.

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