Scanning bed

Abstract

The present application relates to the technical field of medical imaging equipment, and discloses a scanning bed. The scanning bed comprises: a bed frame, on which a bed board is slidably arranged; a bed cover, which is arranged on the outside of the bed frame; wherein a guide surface is arranged at the intersection of the front end of the bed cover and the bed board, the guide surface extends in the direction away from the bottom surface of the bed board in the direction of entering the bed, and the gap width between one end of the guide surface close to the bed board and the bottom surface of the bed board is less than or equal to 4 mm. The scanning bed provided by the present application reduces the risk of fingers entering the gap between the end of the bed board and the front end of the bed cover, and improves the degree of prevention of fingers from entering the gap between the bed board and the front end of the bed cover.

Description

Technical Field

[0001] The present application relates to the technical field of medical imaging equipment, for example, to a scanning bed. Background Art

[0002] As an important part of CT (Computed Tomography) equipment, the scanning bed is used to carry patients. By controlling the bed board to move forward and backward along the length of the scanning bed, the patient can be sent into or out of the scanning host for examination. In the actual use of the scanning bed, some patients may involuntarily hold their hands on the bed board due to tension or pain during the examination. However, when entering or exiting the bed, the patient's fingers may enter the gap between the bed board and the outer cover due to inertia, causing the hand to be pinched.

[0003] In order to solve the above problem, in the related art, elastic members are arranged in the gaps on both sides of the bed board to reduce the risk of the patient's fingers entering the gaps due to inertia when the fingers are pressed against the bed board.

[0004] In the process of implementing the disclosed embodiments, it is found that there are at least the following problems in the related art:

[0005] In the related art, although elastic parts are provided in the gaps on both sides of the bed board, the risk of fingers entering the gaps is reduced to a certain extent. However, since the elastic parts have a certain elasticity, they cannot completely block the fingers from entering the gaps, and the fingers are also elastic, and the thickness of the front part of the fingers is relatively small. When the fingers are close to the bed board, the friction between the fingers and the bed board will increase. Under nervousness, the patient presses his hands very tightly, and the speed of retreating from the bed is relatively fast. Under the action of inertia and elastic deformation of the elastic parts, the fingers are still easily brought into the gaps. In addition, since the elastic parts are only provided on both sides of the bed board, they can only reduce the risk of fingers entering the gaps on both sides of the bed board. Therefore, the above method has a limited degree of reducing the risk of fingers entering the gap between the bed board and the outer cover.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The disclosed embodiment provides a scanning bed, which reduces the risk of fingers entering the gap between the end of the bed board and the bed cover, and improves the level of prevention of fingers from entering the gap between the bed board and the bed cover.

[0009] In some embodiments, a scanning bed is provided, comprising: a bed frame, on which a bed board is slidably arranged; and a bedspread, which is arranged on the outside of the bed frame; wherein a guide surface is arranged at the intersection of the front end of the bedspread and the bed board, the guide surface extends in a direction away from the bottom surface of the bed board in the direction of entering the bed, and the gap width between one end of the guide surface close to the bed board and the bottom surface of the bed board is less than or equal to 4 mm.

[0010] Optionally, a gap width between an end of the guide surface close to the bed board and the bottom surface of the bed board is less than or equal to 2 mm.

[0011] Optionally, the cross section of the guide surface is a plane.

[0012] Optionally, the cross section of the guide surface is an arc-shaped surface.

[0013] Optionally, a smooth film is provided on the guide surface, and the friction coefficient of the smooth film is μ, wherein 0.05≤μ≤0.2.

[0014] Optionally, the friction coefficient of the guide surface is μ, where 0.05≤μ≤0.2.

[0015] Optionally, the guide surface is made of rubber or plastic.

[0016] Optionally, the bed cover includes: a cover body, which is arranged on the outside of the bed frame; and a protective member, which extends along the width direction of the cover body and is arranged at the end of the cover body intersecting with the bed board, wherein the guide surface is arranged on the protective member.

[0017] Optionally, the protective member includes: a connecting portion, which is connected to the cover body and located between the bed board and the cover body; an abutting portion, which is located at the end of the connecting portion and protrudes from the cover body; wherein the guide surface is the outer surface of the abutting portion protruding from the cover body.

[0018] Optionally, the protective member is bonded to the cover body.

[0019] Optionally, the bed cover comprises: a supporting part connected to the front end of the bed frame; a protecting part extending along the width direction of the bed cover and provided at the end of the supporting part, wherein the protecting part and the supporting part are provided integrally; wherein the guiding surface is a surface of the protecting part away from the supporting part.

[0020] The scanning bed provided in the embodiments of the present disclosure can achieve the following technical effects:

[0021] The scanning bed provided by the embodiment of the present disclosure is provided with a guide surface at the intersection of the front end of the bed cover and the bed board, and the guide surface extends in the direction away from the bottom surface of the bed board in the direction of entering the bed, so as to form a guide structure. In the process of entering the bed, when the patient's fingers are close to the bed board, under the action of inertia and the guide structure, the fingers slide along the extension direction of the guide surface to a position away from the bottom surface of the bed board, thereby preventing the fingers from entering the gap between the bed board and the bed cover. In addition, by limiting the gap width between the end of the guide surface close to the bed board and the bottom surface of the bed board to be less than or equal to 4 mm, the gap width between the end of the guide surface close to the bed board and the bottom surface of the bed board is reduced, and the risk of fingers entering the gap between the end of the bed board and the front end of the bed cover, that is, the end of the bed board and the front end of the bed cover, is further reduced, thereby improving the degree of prevention of fingers from entering the gap between the front end of the bed board and the front end of the bed cover.

[0022] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0024] Figure 1 is a schematic diagram of the structure of a scanning bed provided by an embodiment of the present disclosure;

[0025] Figure 2 yes Figure 1 A side view of a scanning bed provided in the illustrated embodiment;

[0026] Figure 3 yes Figure 1 A front view of a scanning bed provided in the illustrated embodiment;

[0027] Figure 4 yes Figure 3 AA sectional view of the embodiment shown;

[0028] Figure 5 is a front view of a scanning bed provided by another embodiment of the present disclosure;

[0029] Figure 6 yes Figure 5 A BB sectional view of the embodiment shown;

[0030] Figure 7 is a structural schematic diagram of a bed board and a bed cover provided by an embodiment of the present disclosure;

[0031] Figure 8 It is a structural schematic diagram of a bed board and a bed cover when the included angle between the guide surface and the bottom surface in the related art is an acute angle;

[0032] Fig. 9 It is a structural schematic diagram of a bed board and a bed cover when the angle between the guide surface and the bottom surface in the related art is a right angle.

[0033] Reference numerals:

[0034] 1 scanning bed;

[0035] 10 bed board; 102 bottom surface;

[0036] 20 bed cover; 202 guide surface; 204 installation cavity; 210 cover body; 212 supporting portion; 214 clamping portion; 216 protection portion; 220 protection piece; 222 connection portion; 224 abutting portion; 226 fixing surface; 228 docking surface;

[0037] 30 bed frames. DETAILED DESCRIPTION

[0038] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0039] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0040] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0041] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0042] Unless otherwise stated, the term "plurality" means two or more.

[0043] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0044] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A, B, A and B.

[0045] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0046] In some embodiments, in combination Figures 1 to 7 As shown, a scanning bed 1 is provided, comprising a bed board 10, a bed frame 30 and a bed cover 20. The bed board 10 is slidably arranged on the bed frame 30. The bed cover 20 is arranged on the outside of the bed frame 30. A guide surface 202 is arranged at the intersection of the front end of the bed cover 20 and the bed board 10, and the guide surface 202 extends in the direction away from the bottom surface 102 of the bed board 10 in the bed entry direction, and the gap width between the end of the guide surface 202 close to the bed board 10 and the bottom surface 102 of the bed board 10 is less than or equal to 4 mm. The front end of the bed cover refers to the end away from the scanning host, and the front end of the bed cover may include a front cover, and may also include the end of a side cover.

[0047] The scanning bed 1 provided in the embodiment of the present disclosure is provided with a guide surface 202 at the intersection of the front end of the bed cover 20 and the bed board 10, and the guide surface 202 extends in the direction away from the bottom surface 102 of the bed board 10 in the bed entry direction (that is, as shown in FIG. Figure 7As shown, the angle between the guide surface and the bottom surface of the bed board located on the left side of the guide surface is an obtuse angle) to form a guide structure. In the process of getting into bed, when the patient's fingers are close to the bed board 10, under the action of inertia and the guide structure, the fingers slide along the extension direction of the guide surface 202 to a position away from the bottom surface 102 of the bed board 10, thereby preventing the fingers from entering the gap between the bed board 10 and the front end of the bed cover 20. In addition, by limiting the gap width between the end of the guide surface 202 close to the bed board 10 and the bottom surface 102 of the bed board 10 to be less than or equal to 4 mm, the gap width between the end of the guide surface 202 close to the bed board 10 and the bottom surface 102 of the bed board 10 is reduced, and the risk of fingers entering the gap between the end of the bed board 10 and the front end of the bed cover, that is, the end of the bed board 10 and the front end of the bed cover 20 is further reduced, thereby improving the degree of prevention of fingers from entering the gap between the front end of the bed board 10 and the front end of the bed cover.

[0048] Optionally, the width of the gap between the end of the guide surface 202 close to the bed board 10 and the bottom surface 102 of the bed board 10 is less than or equal to 2 mm.

[0049] In this embodiment, the gap width between the end of the guide surface 202 close to the bed board 10 and the bottom surface 102 of the bed board 10 is ≤ 2 mm (millimeter), that is, the gap width between the end of the guide surface 202 close to the bed board 10 and the bottom surface 102 of the bed board 10 is the gap at the intersection of the front end of the bed board 10 and the bed cover 20. By reducing the gap at the intersection of the front end of the bed board 10 and the bed cover 20, the degree of prevention of fingers from entering the gap between the front end of the bed board 10 and the bed cover is further improved. The end of the guide surface 202 close to the bed board 10 can contact the bottom surface of the bed board without restricting the movement of the bed board.

[0050] Optionally, combined Figure 3 and Figure 4 As shown, the cross section of the guide surface 202 is a plane.

[0051] In this embodiment, by limiting the cross section of the guide surface 202 to be a plane, the force distribution uniformity of each contact point between the patient's finger and the guide surface 202 is improved, thereby improving the contact experience when the patient's finger contacts the guide surface 202.

[0052] Optionally, combined Figure 5 and Figure 6 As shown, the cross section of the guide surface 202 is an arc-shaped surface.

[0053] In this embodiment, by limiting the cross section of the guide surface 202 to be an arc-shaped surface, the guiding effect of the guide surface 202 is improved, and the risk of fingers entering the gap between the end of the bed board 10 and the bed cover 20 is further reduced.

[0054] Optionally, the friction coefficient of the guide surface 202 is μ, 0.05≤μ≤0.2.

[0055] In this embodiment, by limiting the friction coefficient μ of the guide surface 202 of the bed cover 20 to satisfy 0.05≤μ≤0.2, the friction force generated when the fingers contact the guide surface 202 is small. Therefore, when the patient's fingers are close to the bed board 10 during the process of getting in or out of bed, under the action of inertia and the guide structure, the fingers can smoothly slide along the guide surface 202 to the cover body away from the bed board 10.

[0056] Optionally, the guide surface 202 is provided with a smooth film, and the friction coefficient of the smooth film is μ, wherein 0.05≤μ≤0.2.

[0057] In this embodiment, a smooth film is pasted or coated on the guide surface 202 to reduce the friction coefficient of the guide surface 202 , thereby reducing the friction force generated when the finger contacts the guide surface 202 .

[0058] Optionally, the smooth film comprises a Teflon film.

[0059] Teflon film has good moisture resistance, wear resistance, chemical stability, and extremely low friction coefficient, generally between 0.05 and 0.15. In this embodiment, by sticking or adsorbing Teflon film on the guide surface 202, the service life of the bed cover 20 is increased, and the friction coefficient of the guide surface 202 is reduced.

[0060] Optionally, the guide surface 202 is made of rubber or plastic. In this embodiment, PVC (plastic) or rubber or plastic with hardened material added is used to make the guide surface 202, so that the hardness of the guide surface 202 increases after hardening. By increasing the curing hardness of the guide surface 202, the rigidity of the guide surface 202 is increased, and large elastic deformation of the finger when contacting the guide surface 202 is avoided, thereby improving the guiding stability and reliability of the guide surface 202.

[0061] It should be noted that the hardening material can be one or more of carbon black (such as N110, N220, N330), hardening resin (such as phenolic reinforcing resin), inorganic mineral filler (such as calcium silicate, silicate, alumina), rubber vulcanizer and high styrene. Among them, the specific material to be selected needs to be set by the technicians according to the actual design requirements of the guide surface 202, and is not limited here.

[0062] Optionally, combined Figures 1 to 6 As shown, the bed cover 20 includes a cover body 210 and a protective member 220. The cover body 210 is disposed at the front end of the bed frame 30. The protective member 220 extends along the width direction of the cover body 210 and is disposed at the end of the cover body 210 that intersects with the bed board 30. The guide surface 202 is disposed on the protective member 220.

[0063] In this embodiment, the cover body 210 is arranged at the front end of the bed frame 30 to protect the front end of the bed frame 30. A protective member 220 is provided at the end of the cover body 210 and extends along the width direction of the cover body 210, and the guide surface 202 is provided on the protective member 220, so that a guide structure is formed between the guide surface 202 and the bottom surface 102 of the bed board 10. By adding the protective member 220 to form a guide structure, the risk of fingers entering the gap between the end of the bed board 10 and the bedspread 20 is reduced. Compared with the cover body 210 directly forming a guide structure with the bottom surface 102, by adding the protective member 220 to form a guide structure, the optimization cost of the scanning bed 1 can be reduced. At the same time, it is more convenient to upgrade and improve the existing scanning bed.

[0064] Furthermore, combined with Figure 1 , Figure 3 and Figure 5 As shown, the extending length of the protection member 220 is the same as the intersection length between the bed cover 20 and the bed board 30 .

[0065] In this embodiment, the extended length of the protective member 220 is the same as the length of the intersection between the bedspread 20 and the bed board 30. The length of the protective member 220 is adapted to the gap formed by the intersection between the front end of the bedspread 20 and the bed board 30, thereby improving the protective effect of the protective member 220 on the gap formed by the intersection between the front end of the bedspread 20 and the bed board 30, and further reducing the risk of fingers entering the gap between the end of the bed board 10 and the front end of the bedspread 20.

[0066] Optionally, combined Figure 4 and Figure 6 As shown, the protective member 220 includes a connecting portion 222 and an abutting portion 224. The connecting portion 222 is connected to the cover body 210. The abutting portion 224 is located at the end of the connecting portion 222 and protrudes from the cover body 210. The guide surface 202 is the outer surface of the abutting portion 224 protruding from the cover body 210.

[0067] In this embodiment, the connecting portion 222 and the abutting portion 224 are connected and arranged. When the protective member 220 is arranged on the cover body 210, the connecting portion 222 is connected and arranged with the cover body 210, the abutting portion 224 protrudes from the cover body 210, and the outer surface protruding from the cover body 210 is used as the guide surface 202. The connecting portion 222 realizes a stable connection between the protective member 220 and the cover body 210. The abutting portion 224 protrudes from the cover body 210, so that the abutting portion 224 can protrude from the gap between the cover body 210 and the bed board 10, so as to seal the gap between the cover body 210 and the bed board 10. Thereby, the risk of fingers entering the gap between the end of the bed board 10 and the bedspread 20 is further reduced, and the degree of prevention of fingers entering the gap between the bed board 10 and the bed cover is improved.

[0068] Optionally, combined Figure 4 and Figure 6 As shown, the connecting portion 222 includes a fixing surface 226 connected to the cover body 210 and a butt joint surface 228 opposite to the fixing surface 226. Extending from the butt joint surface 228 toward the fixing surface 226, a protrusion is formed on one end of the fixing surface 226 to form a butt joint portion 224.

[0069] In this embodiment, the connecting portion 222 includes a fixing surface 226 and a docking surface 228 that are arranged opposite to each other, and the fixing surface 226 is connected to the cover body 210. By extending from the docking surface 228 toward the fixing surface 226, a protrusion is formed on one end of the fixing surface 226 to form the abutting portion 224, so that the abutting portion 224 and the connecting portion 222 are integrally formed, thereby improving the structural stability of the protective member 220 and improving the reliability of the protective member 220.

[0070] Optionally, combined Figure 4 and Figure 6 As shown, the cover body 210 includes a supporting portion 212 and a clamping portion 214. The supporting portion 212 is connected to the front end of the bed frame 30. The clamping portion 214 is arranged at the end of the supporting portion 212, and is used to connect and set the protective member 220.

[0071] In this embodiment, the supporting portion 212 is connected to the front end of the bed frame 30. The end of the supporting portion 212 (it can be understood that the end is the end away from the bed frame 30) is provided with a clamping portion 214, which is used to connect with the protective member 220 to achieve a stable connection between the protective member 220 and the cover body 210.

[0072] Furthermore, combined with Figure 4 and Figure 6 As shown, the clamping portion 214 is connected to the connecting portion 222 .

[0073] Optionally, combined Figure 4 and Figure 6 As shown, the clamping portion 214 extends along the length direction of the cover body 210 and protrudes from the supporting portion 212, and the distance between the upper surface of the clamping portion 214 and the bottom surface 102 of the bed board 10 is less than or equal to the distance between the upper surface of the supporting portion 212 and the bottom surface 102 of the bed board 10.

[0074] In this embodiment, the clamping portion 214 extends along the length direction of the cover body 210 and protrudes from the supporting portion 212 . The supporting portion 212 and the clamping portion 214 are integrally formed to enhance the structural stability of the cover body 210 and enhance the reliability of the cover body 210 .

[0075] Optionally, the protective member 220 includes adhesive material. The protective member 220 is bonded to the cover body 210 .

[0076] In this embodiment, the protective member 220 includes an adhesive having adhesive properties, so that the protective member 220 can be bonded to the cover body 210 , thereby improving the installation convenience of the protective member 220 .

[0077] Optionally, combined Figure 7 As shown, the bed cover 20 includes a supporting portion 212 and a protective portion 216. The supporting portion 212 is connected to the front end of the bed frame 30. The protective portion 216 is extended along the width direction of the bed cover 20 and is disposed at the end of the supporting portion 212. The protective portion 216 and the supporting portion 212 are integrally disposed. Among them, the guide surface 202 is the surface of the protective portion 216 away from the supporting portion 212.

[0078] In this embodiment, the protection part 216 and the supporting part 212 are integrally provided, and the guide surface 202 is the surface of the protection part 216 away from the supporting part 212. By integrally forming the supporting part 212 and the protection part 216, the structural stability and reliability of the bed cover 20 are improved.

[0079] Furthermore, combined with Figure 7 As shown, the supporting portion 212 extends along the length direction of the scanning bed, and a flange is formed on the lower surface side of the end of the supporting portion 212 to form a protective portion 216 .

[0080] Optionally, combined Figure 7 As shown, an angle θ is formed between the guide surface 202 and the bottom surface 102 of the bed board 10 , wherein 110°≤θ≤160°.

[0081] In this embodiment, the included angle θ between the guide surface 202 and the bottom surface 102 of the bed plate 10 is limited to satisfy 110°≤θ≤160°, so as to optimize the guide structure between the guide surface 202 and the bottom surface 102. In the related art, in order to pursue the novelty of the appearance of the scanning bed 1 and the unity of its appearance style with the scanning host, the included angle θ between the guide surface 202 and the bottom surface 102 is usually designed to be an acute angle or a right angle. If the included angle θ between the guide surface 202 and the bottom surface 102 is an acute angle, combined with Figure 8 As shown in FIG. 1 , when a finger approaches the bed board 10 or the bed cover 20, the acute angle guides the finger toward the gap between the bed board 10 and the bed cover 20, and limits the escape space of the finger, increasing the risk of pinching the finger. Fig. 9As shown, although the probability of guiding the finger into the gap between the bed board 10 and the bed cover 20 is reduced, due to the elasticity of the finger and the small thickness of the front section of the finger, when the finger is close to the bed board 10, the friction between the finger and the bed board 10 will increase. Under the tension, the patient's hand is pressed very tightly. In addition, the speed of exiting the bed is fast. Under the action of inertia and elastic deformation of the elastic member, the risk of the finger being brought into the gap is still high. Therefore, by limiting 110°≤θ≤160°, the angle θ between the guide surface 202 and the bottom surface 102 is an obtuse angle, so that the obtuse angle and the guide surface 202 form a guide structure. When the patient's finger is close to the bed board 10 during the process of entering or exiting the bed, under the action of inertia and the guide structure, the finger slides along the obtuse angle and the guide surface 202 to the cover body away from the bed board 10, thereby preventing the finger from entering the gap between the bed board 10 and the bed cover 20.

[0082] Furthermore, by limiting 110°≤θ≤160°, it is ensured that the inclination of the guide surface 202 is moderate, neither too gentle nor too steep. When θ<110°, sufficient guiding force cannot be provided, making it easy for the fingers to deviate from the direction when sliding, thereby increasing the risk of being pinched. While θ>160° may cause excessive impact force or friction when the fingers contact the guide surface 202, causing discomfort or injury. Therefore, through analysis of the size, strength and range of motion of human fingers based on ergonomics and actual use, as well as simulation tests in actual use, it is limited to 110°≤θ≤160°, so that the guiding structure formed by the obtuse angle and the guide surface 202 can adapt to the fingers of most people and provide the best guiding effect.

[0083] Optionally, combined Figure 7 As shown, the bed cover 20 includes a mounting cavity 204. The bed cover 20 includes a support member, and the support member is located in the mounting cavity 204 of the bed cover 20.

[0084] In this embodiment, a support member is provided in the installation cavity 204 of the bed cover 20 to support the bed cover 20, thereby improving the rigidity and structural stability of the bed cover 20. By improving the rigidity and structural stability of the bed cover 20, it is prevented that a large elastic deformation occurs when the finger contacts the bed cover 20, thereby ensuring the guiding stability and reliability of the guide surface 202.

[0085] Furthermore, two opposite ends of the support member are connected to the supporting portion 212 and the protective portion 216 respectively.

[0086] In this embodiment, opposite ends of the support member are respectively connected to the supporting portion 212 and the protective portion 216 to form a cross-type support structure, thereby improving the supporting effect of the support member on the bedspread 20 and further improving the rigidity and structural stability of the bedspread 20.

[0087] Optionally, the thickness of the cover body of the bedspread 20 is greater than 3 mm and less than 10 mm.

[0088] In this embodiment, the cover thickness of the bedspread 20 refers to the wall thickness of the bedspread 20. By limiting the cover thickness of the bedspread 20 to be greater than 3 mm, it is ensured that the bedspread 20 has good rigidity, so that the fingers will not produce large elastic deformation when contacting the bedspread 20. When the guide surface 202 of the bedspread 20 is elastically deformed, the contact area between the finger and the guide surface 202 in the vertical direction will increase, resulting in increased friction, and the force of the finger along the front end tangential direction of the bedspread 20 (the direction in which the finger is separated or the direction in which the finger is away from the bed board 10) will decrease, and the finger guiding effect will deteriorate. By increasing the cover thickness of the bedspread 20, the guiding stability and reliability of the guide surface 202 are guaranteed. In addition, by limiting the cover thickness of the bedspread 20 to be less than 10 mm, the lightness and flexibility of the bedspread 20 are improved. An overly thick cover will increase the weight and volume of the entire scanning bed 1, which is not conducive to handling and installation. Therefore, controlling the thickness within 10 mm helps to maintain the lightness and flexibility of the bedspread 20 and improve the use effect of the scanning bed 1.

[0089] Optionally, the bed cover 20 is made of ABS resin (acrylonitrile-butadiene-styrene copolymer).

[0090] ABS resin has the advantages of good mechanical and thermal properties, high hardness, easy metal plating on the surface, fatigue resistance and stress cracking resistance, high impact strength, acid and alkali resistance, low price, easy processing and modification, etc. In this embodiment, ABS resin is used to make the bed cover 20 to improve the practicality, reliability, cost performance and service life of the bed cover 20.

[0091] It should be noted that the specific structure of the support member needs to be specifically designed by technical personnel based on actual product equipment, and the specific structure of the support member is not limited here.

[0092] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A scanning bed, characterized in that: include: A bed frame, on which a bed board is slidably arranged; A bedspread, which is set on the outside of the bed frame; A guide surface is provided at the intersection of the front end of the bedspread and the bed board, and the guide surface extends in the direction of entering the bed away from the bottom surface of the bed board. The width of the gap between the end of the guide surface close to the bed board and the bottom surface of the bed board is less than or equal to 4 mm.

2. The scanning bed according to claim 1, characterized in that: The width of the gap between the end of the guide surface close to the bed board and the bottom surface of the bed board is less than or equal to 2 mm.

3. The scanning bed according to claim 1, characterized in that: The cross section of the guide surface is a plane or an arc surface.

4. The scanning bed according to claim 1, characterized in that: The guide surface is covered with a smooth film, and the friction coefficient of the smooth film is μ, wherein 0.05≤μ≤0.

2.

5. The scanning bed according to claim 1, characterized in that: The friction coefficient of the guide surface is μ, where 0.05≤μ≤0.

2.

6. The scanning bed according to claim 1, characterized in that: The guide surface is made of rubber or plastic.

7. The scanning bed according to any one of claims 1 to 6, characterized in that: Bed Cover Includes: A cover body is arranged on the outer side of the bed frame; The protective member is extended along the width direction of the cover body and is arranged at the end of the cover body intersecting with the bed board, wherein the guide surface is arranged on the protective member.

8. The scanning bed according to claim 7, characterized in that: Protective parts include: A connecting portion, connected to the cover body and located between the bed board and the cover body; An abutment portion, located at an end of the connection portion and protruding from the cover body; The guide surface is an outer surface of the abutment portion protruding from the cover body.

9. The scanning bed according to claim 7, characterized in that: The protective piece is bonded to the cover body.

10. The scanning bed according to any one of claims 1 to 6, characterized in that: Bed Cover Includes: A supporting part connected to the front end of the bed frame; The protection part is extended along the width direction of the bed cover and arranged at the end of the supporting part, and the protection part and the supporting part are arranged in one piece; The guide surface is a surface of the protection part away from the supporting part.

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