X-ray machine balance arm

Abstract

The present invention relates to the technical field of medical devices, and particularly to an X-ray machine balance arm, which includes: The balance arm has a plurality of swing arm assemblies; The swing arm assembly includes a housing, a rotating support and a connecting member. One rotating support is hinged to the housing at point A and to the connecting member at point B, and the other rotating support is hinged to the connecting member at point C and to the housing at point D. ABCD are sequentially connected to form a parallelogram, and the shape of the parallelogram changes when the swing arm assembly rotates; The adjusting assembly is connected to one rotating support and is used to hinder the movement of the parallelogram, so that the balance arm is fixed in a certain posture. According to the movement principle of the parallelogram mechanism and in cooperation with the adjusting assembly to control the displacement of one side of the parallelogram mechanism, the present invention realizes hindering the movement of the rotating support and achieves the effect of balancing the weight of the X-ray machine, so as to ensure that the shape of the parallelogram will not easily change, thereby enabling the X-ray machine to stay at any position.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an X-ray machine balance arm. Background Art

[0002] Dental doctors usually use an X-ray machine to take X-ray films to obtain the dental conditions of patients. There are various types of X-ray machines, commonly including handheld, mobile, and wall-mounted types. Among them, both mobile and wall-mounted types require a balance arm to connect the X-ray machine. By adjusting the posture of the balance arm, the X-ray machine can be fixed at a certain position according to the usage requirements. During the rotation process of the balance arm, a certain resistance is applied so that the X-ray machine can be fixed at a certain position. The balance arm needs to be adjustable. Otherwise, after long-term use, it is easy to cause insufficient supporting force of the balance arm, resulting in the situation that the X-ray machine cannot be fixed at a certain position. At present, the balance arm connecting the X-ray machine also has inconvenient resistance adjustment, which affects the use effect of the X-ray machine.

[0003] In addition, during the use of the balance arm, it needs to be rotated repeatedly. Under the influence of long-term repeated rotation, the wire group inside the balance arm is prone to gather at a certain place, making the wire group easy to be pulled when the balance arm is rotated again, or the wire group is not long enough to rotate to the limit rotation angle. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide an X-ray machine balance arm to solve the problem that the balance arm of the existing X-ray machine cannot ensure that the supporting force of the balance arm meets the requirement that the X-ray machine can be fixed at a certain position after long-term use, thus affecting the use effect of the X-ray machine.

[0005] The present invention provides an X-ray machine balance arm, wherein the X-ray machine balance arm includes:

[0006] A balance arm, including a plurality of rotating arm components connected by rotation. Rotating the rotating arm components can adjust the angle between adjacent two rotating arm components so that the balance arm can be unfolded or folded;

[0007] Each rotating arm component includes a housing, a rotating support and a connecting member. The two rotating supports are respectively arranged at both ends in the length direction of the rotating arm component. One of the rotating supports is hinged to the housing at point A and hinged to the connecting member at point B. The other rotating support is hinged to the connecting member at point C and hinged to the housing at point D. ABCD are connected in sequence to form a parallelogram. When the rotating arm component rotates, the shape of the parallelogram changes;

[0008] An adjusting component, which is arranged in the housing and connected to one of the rotating supports, is used to hinder the movement of the parallelogram so that the balance arm can be fixedly maintained in the unfolded or folded posture.

[0009] Preferably, the adjusting assembly includes:

[0010] An adjusting member, hinged to a position of the rotating support member that is not the rotation center, such that the adjusting member can reciprocate in a direction approaching or departing from the rotating support member; a protruding positioning portion is provided on a side wall of the adjusting member;

[0011] A blocking member, fixedly arranged on the housing, and the adjusting member is slidably connected to the blocking member;

[0012] An elastic member, clamped between the positioning portion and the blocking member. When the rotating support member drives the adjusting member to move, the elastic member is compressed to impede the movement of the parallelogram.

[0013] Preferably, the adjusting member includes:

[0014] A sliding rod, extending along the length direction of the swing arm assembly. The elastic member is sleeved on an outer circumferential wall of the sliding rod. The positioning portion is arranged on the sliding rod, and the blocking member is arranged between the positioning portion and the rotating support member;

[0015] An adjusting rod, one end of which is hinged to the sliding rod and the other end is hinged to the rotating support member. An angle between the adjusting rod and the sliding rod changes as the rotating support member drives the adjusting member to move.

[0016] Preferably, the positioning portion is slidably connected to the adjusting member to adjust the compression amount of the elastic member;

[0017] And / or, the adjusting member is formed into a telescopic rod-shaped structure to adjust a distance between the positioning portion and the blocking member.

[0018] Preferably, the rotating support member located at a rotational connection of two adjacent swing arm assemblies is hinged to at least one adjusting member.

[0019] Preferably, a first channel and a second channel are formed in the housing, which are independently arranged and both extend along the length direction of the swing arm assembly;

[0020] The adjusting assembly is arranged in the first channel, a wire group is threaded through the second channel, and the connecting member is arranged in the second channel.

[0021] Preferably, the X-ray machine balance arm further includes:

[0022] The buffer assembly is elastic and is arranged at at least one end in the length direction of the swing arm assembly. The wire group can slide along the side wall of the buffer assembly. When the swing arm assembly rotates, the wire group is pulled, so that the buffer assembly is squeezed and deformed. After the buffer assembly elastically recovers, it can support the wire group to avoid the accumulation of the wire group.

[0023] Preferably, the buffer assembly includes:

[0024] A support member installed at the hinge joint of the rotating support member and the housing;

[0025] A buffer member sleeved on the side wall of the support member;

[0026] A bearing member formed as an annular structure and sleeved on the outer wall of the buffer member. The inner wall of the bearing member can abut against the buffer member, and the wire group is arranged along the outer wall of the bearing member.

[0027] Preferably, the support member includes a sleeve and limiting portions arranged at both ends of the sleeve; the limiting portions are formed as plate-like structures, and the edges of the limiting portions extend out of the outer wall of the bearing member to limit the displacement of the wire group in the axial direction of the sleeve.

[0028] Preferably, the X-ray machine balance arm further includes:

[0029] A base arranged at one end of the balance arm;

[0030] An X-ray machine arranged at the other end of the balance arm;

[0031] The balance arm further includes:

[0032] A horizontal swing arm arranged between the base and the swing arm assembly. The horizontal swing arm can swing in the horizontal direction with the base as the axis.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] For the X-ray machine balance arm of the present invention, the swing arm assembly utilizes the motion principle of the parallelogram mechanism and cooperates with the adjustment assembly to control the displacement of one side of the parallelogram mechanism, so as to hinder the movement of the rotating support member and achieve the effect of balancing the weight of the X-ray machine. In this way, it is ensured that the shape of the parallelogram will not be easily changed, so that the balance arm can be fixedly maintained in the unfolded or folded posture, thereby enabling the X-ray machine to stay at any position, having the advantages of stable support and reliable fixation.

[0035] To make the above objects, features, and advantages of the present application more obvious and understandable, the following specific embodiments are given in detail in conjunction with the accompanying drawings. Description of the Drawings

[0036] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0037] Figure 1 Schematic diagram of the structure of the balance arm of the X-ray machine provided by the embodiment of the present invention in the folded posture;

[0038] Figure 2 For Figure 1 Structural sectional view from the perspective;

[0039] Figure 3 Front view sectional view of the balance arm of the X-ray machine provided by the embodiment of the present invention in the folded posture;

[0040] Figure 4 For Figure 3 Enlarged structure schematic diagram at position E in;

[0041] Figure 5 Schematic diagram of the structure of the balance arm of the X-ray machine provided by the embodiment of the present invention in the unfolded posture;

[0042] Figure 6 For Figure 5 Structural sectional view from the perspective;

[0043] Figure 7 Front view sectional view of the balance arm of the X-ray machine provided by the embodiment of the present invention in the unfolded posture;

[0044] Figure 8 Exploded view of the structure of the balance arm of the X-ray machine provided by the embodiment of the present invention;

[0045] Figure 9 Schematic diagram of the structure of parallelogram ABCD of the balance arm of the X-ray machine provided by the embodiment of the present invention in the folded posture;

[0046] Figure 10 Schematic diagram of the structure of parallelogram ABCD of the balance arm of the X-ray machine provided by the embodiment of the present invention in the unfolded posture;

[0047] Figure 11 Schematic diagram of the structure of the first channel and the second channel in the housing of the balance arm of the X-ray machine provided by the embodiment of the present invention;

[0048] Figure 12Schematic structural diagram of a buffer assembly in an X-ray machine balance arm provided by an embodiment of the present invention;

[0049] Figure 13 Exploded view of the structure of a buffer assembly in an X-ray machine balance arm provided by an embodiment of the present invention.

[0050] Reference numerals: 10 - swing arm assembly; 11 - housing; 111 - first channel; 112 - second channel; 12 - rotating support; 13 - connecting member; 14 - protective shell; 20 - horizontal swing arm; 30 - adjusting assembly; 31 - adjusting member; 311 - sliding rod; 3111 - positioning portion; 312 - adjusting rod; 32 - blocking member; 33 - elastic member; 40 - wire group; 50 - buffer assembly; 51 - support member; 511 - sleeve; 512 - limiting portion; 52 - buffer member; 53 - bearing member; 60 - base; 70 - X-ray machine. Detailed implementation manners

[0051] The following detailed implementation manners are provided to assist the reader in obtaining a comprehensive understanding of the methods, devices, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, devices, and / or systems described herein will be apparent after understanding the disclosure of the present application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein. Rather, changes that will be apparent after understanding the disclosure of the present application may be made, except for operations that must occur in a specific order. In addition, descriptions of features known in the art may be omitted for the sake of clarity and conciseness.

[0052] The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided only to illustrate some of the many possible ways of implementing the methods, devices, and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0053] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "coupled to" another element, "above" another element, or "covering" another element, it may be directly "on", "connected to", "coupled to", "above", or "covering" the other element, or there may be one or more other elements therebetween. In contrast, when an element is described as being "directly on", "directly connected to", "directly coupled to", "directly above", or "directly covering" another element, there may be no other elements therebetween.

[0054] As used herein, the term "and / or" includes any one of the listed related items and any combination of any two or more of them.

[0055] Although terms such as "first", "second", and "third" may be used herein to describe various components, elements, regions, layers, or parts, these components, elements, regions, layers, or parts are not limited by these terms. Rather, these terms are only used to distinguish one component, element, region, layer, or part from another. Thus, a first component, element, region, layer, or part as referred to in the examples described herein may also be referred to as a second component, element, region, layer, or part without departing from the teachings of the examples.

[0056] For ease of description, spatial relationship terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another as shown in the figures. Such spatial relationship terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, an element described as "above" or "upper" relative to another element will then be "below" or "lower" relative to the other element. Thus, the term "above" includes both the orientation of "above" and "below" depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relationship terms used herein will be interpreted accordingly.

[0057] The terms used herein are only for describing various examples and are not intended to limit the present disclosure. Unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. The terms "comprises", "comprising", and "having" list the stated features, quantities, operations, components, elements, and / or combinations thereof that exist, but do not preclude the existence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0058] Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the figures may occur. Thus, the examples described herein are not limited to the specific shapes shown in the figures, but include changes in shape that occur during manufacturing.

[0059] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0060] According to the present invention, a balance arm for an X-ray machine is provided, which includes a balance arm and an adjustment component 30 .

[0061] Hereinafter, the specific structures of the above-mentioned components of the balance arm of the X-ray machine according to this embodiment will be described.

[0062] In this embodiment, if Figures 1 to 10 As shown, the X-ray machine balance arm also includes a base 60 and a X-ray machine 70. The base 60 is arranged at one end in the length direction of the balance arm, and the base 60 is fixedly arranged. When it is formed into a wall-mounted structure, the base 60 is fixedly arranged on the wall; the X-ray machine 70 is arranged at the other end in the length direction of the balance arm, and the line group 40 for supplying energy to the X-ray machine 70 is passed through the interior of the balance arm. By adjusting the posture of the balance arm, the distance and orientation of the X-ray machine 70 relative to the base 60 can be adjusted, so that the position of the X-ray machine 70 meets the application requirements, and the X-ray machine 70 can be fixed at the desired position by maintaining the posture of the balance arm.

[0063] In this embodiment, the balancing arm includes a plurality of rotating arm assemblies 10 connected in rotation, the rotating arm assemblies 10 are formed into a strip structure, and the ends of the plurality of rotating arm assemblies 10 in the length direction are sequentially connected in rotation, so that two adjacent rotating arm assemblies 10 are formed into a hinge, and the rotating arm assemblies 10 are rotated to adjust the angle between the two adjacent rotating arm assemblies 10 so that the balancing arm is formed as follows Figures 1 to 3 The folded position shown, or formed as Figures 5 to 7 The unfolded posture shown, wherein in the folded posture, the multiple arm assemblies 10 are arranged parallel to each other, that is, the extension directions of the multiple arm assemblies 10 are the same; in the unfolded state, two adjacent arm assemblies 10 are arranged at an angle or in a colinear manner.

[0064] In this embodiment, if Figures 1 to 10 As shown, the swivel arm assembly 10 includes a protective shell 14, a shell 11, a rotating support member 12 and a connecting member 13. The shell 11 extends along the length direction of the swivel arm assembly 10. The protective shell 14 is arranged at both ends of the shell 11 in the length direction. The rotating support member 12 is arranged in the protective shell 14. The protective shell 14 and the shell 11 form a split structure for easy disassembly, assembly and adjustment.

[0065] Specifically, there are two rotating supports 12 on each swing arm assembly 10, and the two rotating supports 12 are respectively arranged at both ends in the length direction of the swing arm assembly 10. The connecting member 13 is formed into a rod-shaped structure. One rotating support 12 is hinged to the housing 11 at point A and hinged to the connecting member 13 at point B. For example, point A can be connected to the central position of this rotating support 12, and point B can be connected to the eccentric position of this rotating support 12. The other rotating support 12 is hinged to the connecting member 13 at point C and hinged to the housing 11 at point D. For example, point C can be connected to the central position of this rotating support 12, and point D can be connected to the eccentric position of this rotating support 12. A, B, C, and D are sequentially connected to form a parallelogram. When the swing arm assembly 10 rotates to adjust the attitude of the balance arm, the shape of the parallelogram changes accordingly. Among them, the connecting member 13 is formed into a rod-shaped structure, and the hinged points B and C are located at both ends in the length direction of the connecting member 13. A, B, C, and D form a parallelogram structure, ensuring that when the balance arm is in any attitude, the housing 11 is always parallel to the connecting member 13, so as to ensure that the rotation angles of the two rotating supports 12 relative to the housing 11 are the same.

[0066] In this embodiment, two adjacent rotating supports 12 in two adjacent swing arm assemblies 10 are fixedly connected to ensure the relative movement postures of the two adjacent swing arm assemblies 10 are determined.

[0067] It should be noted that in this embodiment, two sets of swing arm assemblies 10 can meet the use requirements of adjusting the ray machine 70 to the required position. However, the number of sets of swing arm assemblies 10 is not limited to this, and more sets can be set according to actual needs.

[0068] In this embodiment, as Figures 1 to 10 shown, the adjusting assembly 30 is arranged in the housing 11 and connected to one rotating support 12, and is used to hinder the movement of the parallelogram, so as to balance the weight of the ray machine 70 and make the balance arm fixedly maintain the unfolded or folded posture.

[0069] Specifically, in this embodiment, as Figure 4 shown, the adjusting assembly 30 includes an adjusting member 31, a blocking member 32, and an elastic member 33. The adjusting member 31 is hinged to a position of the rotating support 12 that is not the rotation center, that is, the adjusting member 31 and the rotating support 12 form a structure similar to an eccentric wheel mechanism, so that the rotating rotating support 12 can drive the adjusting member 31 to reciprocate in a direction close to or away from the rotating support 12, that is, the adjusting member 31 can move synchronously with the parallelogram.

[0070] As Figure 4As shown, the blocking member 32 is fixed to the housing 11, that is, during the process of adjusting the attitude of the balance arm, the position of the blocking member 32 relative to the housing 11 remains unchanged all the time. The adjusting member 31 is slidably connected to the blocking member 32. Specifically, in an optional implementation manner, the blocking member 32 can be formed into an annular cylindrical structure through which the adjusting member 31 passes, so that the adjusting member 31 can form a sliding connection with the blocking member 32. In another optional implementation manner, a sliding groove is formed on the side wall of the adjusting member 31, and a sliding block that can extend into the sliding groove is formed on the blocking member 32, so that the adjusting member 31 can form a sliding connection with the blocking member 32.

[0071] A protruding positioning portion 3111 is provided on the side wall of the adjusting member 31; the elastic member 33 is clamped between the positioning portion 3111 and the blocking member 32. The elastic member 33 can be a spring. The positioning portion 3111 and the blocking member 32 are respectively located at both ends in the telescopic direction of the elastic member 33 and can respectively abut against the elastic member 33; when the rotating support member 12 drives the adjusting member 31 to move, the adjusting member 31 slides relative to the blocking member 32, so that the distance between the positioning portion 3111 and the blocking member 32 decreases, thereby compressing the elastic member 33 to hinder the movement of the parallelogram, achieving the balance of the weight of the radiography machine 70, and fixing the attitude of the balance arm.

[0072] In a preferred implementation manner, the distance between the positioning portion 3111 and the blocking member 32 decreases as the included angle between two adjacent swing arm assemblies 10 increases. In this way, the compression amount of the elastic member 33 increases accordingly, so that when the distance between the radiography machine 70 and the base 60 increases, it is more beneficial for the balance arm to be fixed in the required deployed attitude.

[0073] Further, in a preferred implementation manner, as Figure 4 shown, the adjusting member 31 includes a sliding rod 311 and an adjusting rod 312. The sliding rod 311 extends along the length direction of the swing arm assembly 10. The elastic member 33 is sleeved on the outer wall of the sliding rod 311 in a circumferential manner. The positioning portion 3111 is arranged on the sliding rod 311. The blocking member 32 is arranged between the positioning portion 3111 and the rotating support member 12. In this way, when the sliding rod 311 moves, it can drive the positioning portion 3111 to move towards the direction close to the blocking member 32, thereby compressing the elastic member 33; one end of the adjusting rod 312 is hinged to the sliding rod 311, and the other end of the adjusting rod 312 is hinged to the rotating support member 12. The angle between the adjusting rod 312 and the sliding rod 311 changes as the rotating support member 12 drives the adjusting member 31 to move. In this way, it is ensured that the sliding rod 311 can always extend along the length direction of the swing arm assembly 10 during the movement process, thereby avoiding the situation that the friction force between the sliding rod 311 and the housing 11 or the blocking member 32 increases due to skewing during the movement process, resulting in a dead point of movement, and further affecting the adjustment of the attitude of the balance arm.

[0074] Further, in this embodiment, the positioning portion 3111 is slidably connected to the adjusting member 31. Thus, by adjusting the position of the positioning portion 3111 on the adjusting member 31, the compression amount of the elastic member 33 can be changed. The adjustment is simple and convenient, thereby changing the pre-pressure of the elastic member 33 and avoiding the situation that the ray machine 70 cannot be fixed at a certain position due to insufficient supporting force of the balance arm under long-term use.

[0075] In an alternative embodiment, the side wall of the adjusting member 31 is provided with an external thread, and the positioning portion 3111 is formed as a nut structure threadedly connected to the adjusting member 31. By screwing the positioning portion 3111, its position on the adjusting member 31 can be changed, so that the positioning portion 3111 can slide along the length direction of the adjusting member 31. Thus, the distance between the positioning portion 3111 and the blocking member 32 is changed, thereby changing the compression amount of the elastic member 33. However, in other alternative embodiments, the positioning portion 3111 can also be slidably connected to the adjusting member 31 by means of snap-fastening, magnetic attraction, etc., as long as the positional relationship between the two can be fixed after adjusting the position of the positioning portion 3111 on the adjusting member 31, so that the adjusting member 31 can drive the positioning portion 3111 to squeeze the elastic member 33.

[0076] In addition, in this embodiment, the adjusting member 31 is formed as a telescopic rod-like structure. By changing the length of the adjusting member 31, the distance between the positioning portion 3111 and the blocking member 32 can be adjusted, thereby realizing the change of the compression amount of the elastic member 33. Specifically, the adjusting member 31 includes a fixed portion and an adjustable portion. One of the blocking member 32 and the positioning portion 3111 is provided on the fixed portion and the other is provided with the adjustable portion. The adjustable portion can slide in a direction close to or away from the fixed portion to change the distance between the blocking member 32 and the positioning portion 3111, thereby realizing the change of the compression amount of the elastic member 33. In an alternative embodiment, the fixed portion and the adjustable portion are threadedly connected. By screwing the adjustable portion, the compression amount of the elastic member 33 can be changed. The adjustable portion extends along the housing 11. Thus, the adjustment can be performed in the area where the rotating support member 12 is located. In a preferred embodiment, an adjustment hole is provided at the position of the rotating support member 12. Thus, the operation of screwing the adjustment portion can be performed through this adjustment hole, so that the balance arm does not need to be disassembled, which has the advantage of convenient adjustment.

[0077] In this embodiment, as Figure 2 、 Figure 3 、 Figure 6 and Figure 7 shown, the rotating support member 12 located at the rotational connection of two adjacent swivel arm assemblies 10 is hinged to at least one adjusting member 31 to ensure that the rotation angle of each rotating support member 12 can be controlled by the adjusting assembly 30, so that the attitude of each swivel arm assembly 10 can be kept fixed during the adjustment of the balance arm, thereby ensuring that the ray machine 70 is fixed at the required position.

[0078] In this embodiment, as Figure 11 shown, a first channel 111 and a second channel 112 that are independently arranged from each other are formed in the housing 11. Both the first channel 111 and the second channel 112 extend along the length direction of the swing arm assembly 10. The adjusting assembly 30 is arranged in the first channel 111, and the wire group 40 is threaded through the second channel 112. In this way, the adjusting assembly 30 and the wire group 40 are separated, avoiding the jamming of the wire group 40 caused by the compression of the elastic member 33 when the swing arm assembly 10 rotates, and even preventing the wire group 40 from being entangled with the adjusting assembly 30.

[0079] The connecting member 13 is arranged in the second channel 112, thereby avoiding the displacement of the connecting member 13 interfering with the movement of the adjusting assembly 30 when the shape of the parallelogram changes. In this embodiment, two connecting members 13 are arranged in each swing arm assembly 10, and the wire group 40 is clamped between the two connecting members 13.

[0080] In addition, in this embodiment, as Figures 1 to 7 , Figure 12 and Figure 13 shown, the X-ray machine balance arm further includes an elastic buffer assembly 50. The wire group 40 can slide along the side wall of the buffer assembly 50. When the swing arm assembly 10 rotates, the wire group 40 is pulled, causing the wire group 40 to displace in the second channel 112. The buffer assembly 50 is deformed by the extrusion of the wire group 40. Since the buffer assembly 50 has elasticity, when the pulling force weakens, the buffer assembly 50 that restores its elasticity can support the wire group 40, causing the displaced wire group 40 to return along the original path, thereby avoiding the situation where the wire group 40 accumulates and piles up due to multiple rotations of the swing arm assembly 10, and further solving the problem that the balance arm cannot rotate to the limit rotation angle due to the insufficient length of the wire group 40 caused by the pulling of the wire group 40.

[0081] In a preferred embodiment, the buffer assembly 50 is arranged at at least one end in the length direction of the swing arm assembly 10, so as to ensure that the wire group 40 passing through the second channel 112 can pass through the next second channel 112 via the buffer assembly 50, thereby ensuring that the wire group 40 will not accumulate or even jam in the entire balance arm.

[0082] Specifically, in this embodiment, as Figure 12 and Figure 13As shown, the buffer assembly 50 includes a support member 51 installed at the hinge joint of the rotating support member 12 and the housing 11, a buffer member 52 sleeved on the side wall of the support member 51, and a carrier member 53 sleeved on the outer wall of the buffer member 52. The buffer member 52 is formed as an annular structure sleeved on the sleeve 511 and has elasticity. For example, a rubber ring can be used. The carrier member 53 is formed as an annular structure, sleeved on the outer wall of the buffer member 52 and rotatably connected to the buffer member 52. The wire group 40 is disposed against the outer wall of the carrier member 53. When the rotation of the swivel arm assembly 10 causes the wire group 40 to be pulled, the wire group 40 will move towards the direction close to the support member 51, so that the inner wall of the carrier member 53 can abut against the buffer member 52 to cause extrusion of the buffer member 52.

[0083] More specifically, in this embodiment, as Figure 13 shown, the support member 51 includes a sleeve 511 and limiting portions 512 provided at both ends of the sleeve 511. The sleeve 511 is formed as a tubular structure, and the limiting portions 512 are provided at both axial ends of the sleeve 511, so that the carrier member 53 and the buffer member 52 are both fixed between the two limiting portions 512; the limiting portions 512 are formed as plate-like structures, and the plate-like structures are perpendicular to the axis direction of the sleeve 511. In a preferred embodiment, the edges of the limiting portions 512 extend out of the outer wall of the carrier member 53, so that the displacement of the wire group 40 in the axial direction of the sleeve 511 can be limited, ensuring that the wire group 40 can contact the buffer assembly 50, thereby ensuring the reliability and effectiveness of the buffering effect of the buffer assembly 50 on the wire group 40.

[0084] In this embodiment, as Figures 1 to 7 shown, the balance arm further includes a horizontal swivel arm 20. The horizontal swivel arm 20 is provided between the base 60 and the swivel arm assembly 10. The horizontal swivel arm 20 can swing in the horizontal direction with the base 60 as the axis to adjust the position of the X-ray machine 70 in the horizontal direction. An adjustment assembly 30 is provided at the hinge position between the horizontal swivel arm 20 and the swivel arm assembly 10 to ensure that the swivel arm assembly 10 and the horizontal swivel arm 20 can be relatively fixed at the required angle.

[0085] According to the X-ray machine balance arm of the present invention, the swivel arm assembly utilizes the movement principle of the parallelogram mechanism and cooperates with the adjustment assembly to control the displacement of one side of the parallelogram mechanism, so as to hinder the movement of the rotating support member, achieving the effect of balancing the weight of the X-ray machine. In this way, it is ensured that the shape of the parallelogram will not easily change, so that the balance arm is fixedly maintained in the deployed or folded posture, thereby enabling the X-ray machine to stay at any position, having the advantages of stable support and reliable fixation; the adjustment assembly can adjust the pre-pressure of the elastic member, so as to change the compression amount of the elastic member, thereby avoiding the situation that the X-ray machine cannot be fixed at a certain position due to insufficient support force of the balance arm caused by long-term use;

[0086] Secondly, a first channel and a second channel are provided inside the housing, thus separating the adjusting component from the wire group, avoiding the jamming of the wire group caused by the compression of the elastic member when the rotating arm component rotates, and even preventing the wire group from being entangled on the adjusting component, so as to ensure that the ray machine can be fixed at the required position;

[0087] In addition, by providing a buffer component, when the wire group is pulled when the rotating arm component rotates, the buffer component is deformed by the extrusion of the wire group. Since the buffer component has elasticity, when the pulling force weakens, the buffer component that restores its elasticity can support the wire group, enabling the displaced wire group to return along the original path, thus avoiding the situation where the wire group accumulates and piles up due to multiple rotations of the rotating arm component, and further solving the problem that the balance arm cannot rotate to the limit rotation angle due to the insufficient length of the wire group caused by the pulling of the wire group.

[0088] Finally, it should be noted that: the above-described embodiments are only specific embodiments of the present application, used to illustrate the technical solutions of the present application, rather than limiting it. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: any person skilled in the art within the technical scope disclosed in the present application can still modify the technical solutions recorded in the foregoing embodiments, or can easily think of changes, or make equivalent replacements for some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An X-ray machine balance arm, characterized in that, the X-ray machine balance arm comprises: A balance arm, including a plurality of rotating arm components connected by rotation. Rotating the rotating arm components adjusts the angle between two adjacent rotating arm components so that the balance arm unfolds or folds; The rotating arm component includes a housing, a rotating support and a connecting member. The two rotating supports are respectively arranged at both ends in the length direction of the rotating arm component. One of the rotating supports is hinged to the housing at point A and hinged to the connecting member at point B. The other rotating support is hinged to the connecting member at point C and hinged to the housing at point D. ABCD are sequentially connected to form a parallelogram. When the rotating arm component rotates, the shape of the parallelogram changes; An adjusting component, arranged inside the housing and connected to one of the rotating supports, for hindering the movement of the parallelogram so that the balance arm is fixedly maintained in the unfolded or folded posture; A buffer component, having elasticity. The buffer component is arranged at at least one end in the length direction of the rotating arm component. A wire group can slide along the side wall of the buffer component. When the rotating arm component is rotated, the wire group is pulled, so that the buffer component is squeezed and deformed. After the buffer component elastically recovers, it can support the wire group to avoid the accumulation of the wire group; The buffer component includes: A support member, installed at the hinge of the rotating support and the housing; A buffer member, sleeved on the side wall of the support member; A carrier member, formed into an annular structure, sleeved on the outer wall of the buffer member and rotatably connected to the buffer member. The inner wall of the carrier member can abut against the buffer member, and the wire group is arranged on the outer wall of the carrier member.

2. The X-ray machine balance arm according to claim 1, characterized in that, the adjusting component includes: An adjusting member, hinged at a position of the rotating support that is not the rotation center, so that the adjusting member can reciprocate in a direction close to or away from the rotating support; A protruding positioning portion is provided on the side wall of the adjusting member; A blocking member, fixed to the housing, and the adjusting member is slidably connected to the blocking member; An elastic member, clamped between the positioning portion and the blocking member. When the rotating support drives the adjusting member to move, the elastic member is compressed to hinder the movement of the parallelogram.

3. The X-ray machine balance arm according to claim 2, characterized in that, the adjusting member includes: A sliding rod, extending along the length direction of the rotating arm component. The elastic member is sleeved on the outer circumferential wall of the sliding rod. The positioning portion is arranged on the sliding rod, and the blocking member is arranged between the positioning portion and the rotating support; An adjusting rod, one end of which is hinged to the sliding rod and the other end is hinged to the rotating support. The angle between the adjusting rod and the sliding rod changes as the rotating support drives the adjusting member to move.

4. The X-ray machine balance arm according to claim 2, characterized in that, the positioning portion is slidably connected to the adjusting member to adjust the compression amount of the elastic member; And / or, the adjusting member is formed into a telescopic rod-like structure to adjust the distance between the positioning portion and the blocking member.

5. The X-ray machine balance arm according to claim 2, wherein, the rotating support member located at the rotating connection of two adjacent rotating arm assemblies is hinged to at least one of the adjusting members.

6. The X-ray machine balance arm according to claim 1, wherein, a first channel and a second channel which are independently arranged from each other and both extend along the length direction of the rotating arm assembly are formed in the housing; the adjusting assembly is arranged in the first channel, the wire group is threaded through the second channel, and the connecting member is arranged in the second channel.

7. The X-ray machine balance arm according to claim 1, wherein, the support member includes a sleeve and limiting portions arranged at both ends of the sleeve; the limiting portions are formed into plate-like structures, and the edges of the limiting portions extend out of the outer wall of the bearing member to limit the displacement of the wire group in the axial direction of the sleeve.

8. The X-ray machine balance arm according to claim 1, wherein, the X-ray machine balance arm further includes: a base, arranged at one end of the balance arm; an X-ray machine, arranged at the other end of the balance arm; the balance arm further includes: a horizontal rotating arm, arranged between the base and the rotating arm assembly, and the horizontal rotating arm can swing in the horizontal direction with the base as the axis.

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