Connecting assembly, cross beam and calibration equipment

Abstract

The embodiment of the utility model relates to the technical field of mechanical equipment, and discloses a connecting assembly, a cross beam and calibration device.The connecting assembly comprises a connecting rod and a first locking piece, one end of the connecting rod is fixedly connected with a first splicing piece, a first conical groove is formed in the side wall of the other end of the connecting rod, and when the connecting rod is inserted into a second splicing piece in the first direction, the first locking piece is locked in the first conical groove; the notch of the first conical groove is opposite to the orifice part of the first fixing hole, the center of the first conical groove is located on the side, facing the second direction, of the center of the first fixing hole, and after the first locking piece sequentially penetrates into the first fixing hole and the first conical groove inwards, the first conical part and the inner wall of the first conical groove extrude each other; and the connecting rod drives the first splicing piece to move towards the first direction, so that the first splicing piece and the second splicing piece abut against each other and are fixed with each other. By means of the mode, connection of the first splicing piece and the second splicing piece is tighter and firmer, assembling and disassembling operation is easy, and time is saved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of mechanical equipment, and specifically to a connecting assembly, a beam, and a calibration device. Background Art

[0002] During the use of mechanical equipment, due to product functions or performance requirements, the length of a similar beam structure may be relatively large, which is inconvenient for the use, movement and transportation of the mechanical equipment. To solve this problem, the beam mechanism needs to be assembled and disassembled in sections. To meet the performance requirements of the mechanical equipment and to adapt to mechanical equipment with higher work efficiency requirements, it is necessary to ensure that the step difference of the splicing position of the spliced ​​beam is small.

[0003] At present, segmented beams are usually spliced ​​and fixed with screws. When assembling the beams, the fixing holes on the beams need to be completely aligned, and then the screws or screws need to be completely screwed into the fixing holes on the beams. When disassembling the beams, the screws or screws need to be completely unscrewed out of the fixing holes on the beams. In the above method, the assembly and disassembly process of the beams is complicated and takes a lot of time. Utility Model Content

[0004] In view of the above problems, the embodiments of the present application provide a connection assembly, a beam and a calibration device, which are used to solve the problem that the assembly and disassembly process of the beam in the prior art is complicated and time-consuming.

[0005] According to one aspect of an embodiment of the present application, a connection assembly is provided, which includes: a connecting rod and a first locking piece; one end of the connecting rod is used to be fixedly connected to the first splicing piece, and a first conical groove is provided on the side wall at the other end of the connecting rod, and the other end of the connecting rod is used to be inserted into the second splicing piece along the first direction, and the notch of the first conical groove is opposite to the orifice of the first fixing hole on the second splicing piece, wherein the center of the first conical groove is located on the side of the center of the first fixing hole facing the second direction, and the second direction is opposite to the first direction; the end of the first locking piece has a first conical portion, so that after the first locking piece is successively inserted into the first fixing hole and the first conical groove, the first conical portion and the inner wall of the first conical groove are squeezed against each other, and then the first splicing piece is driven by the connecting rod to move in the first direction, so that the first splicing piece and the second splicing piece abut and are fixed to each other.

[0006] In an optional manner, a second tapered groove is provided on the side wall of the connecting rod at the other end opposite to the end where the first tapered groove is located; the end of the connecting rod where the second tapered groove is located is used to align the center of the second tapered groove with the center of the second fixing hole on the first assembly piece when the connecting rod is inserted into the first assembly piece along the second direction; the connecting assembly also includes a second locking piece, and a second tapered portion is provided at one end of the second locking piece, and the second locking piece is used to align the center of the second tapered portion with the center of the second tapered groove and fix them to each other when the second locking piece is inserted inwardly into the second fixing hole, so as to fix the connecting rod to the first assembly piece.

[0007] In an optional manner, the cross-sectional area of ​​the two ends of the connecting rod along the third direction is smaller than the cross-sectional area of ​​the middle section of the connecting rod along the third direction, and the third direction is perpendicular to the first direction.

[0008] In an optional manner, the notch of the first tapered groove and the notch of the second tapered groove are arranged in the same direction.

[0009] In an optional manner, the connecting assembly also includes a fixing seat, which is used to be at least partially inserted into the first fixing hole; the fixing seat is provided with a connecting hole along the second direction, and the end of the connecting rod where the first conical groove is located is plugged into the connecting hole; the fixing seat is provided with a third fixing hole coaxial with the first fixing hole, and the third fixing hole is connected to the connecting hole; the first locking piece is inserted into the third fixing hole and fixedly connected to the connecting rod.

[0010] In an optional manner, the fixing seat is used to be partially inserted into the first fixing hole, and the side wall of the fixing seat at one end outside the first fixing hole extends outward to form a positioning portion, and the positioning portion is used to be fixedly connected to the second splicing piece.

[0011] In an optional manner, a limiting protrusion is provided on the first locking member at a position where the thick end of the first conical portion is away from the thin end of the first conical portion, and the limiting protrusion is used to abut against a limiting wall in the first fixing hole when the first locking member moves outward relative to the first fixing hole, so as to limit the first locking member from being withdrawn from the first fixing hole.

[0012] In an optional manner, the first locking member includes a screw, the screw is threadedly connected to the first fixing hole, and the first tapered portion at the end of the screw abuts against the inner wall of the first tapered groove.

[0013] According to another aspect of an embodiment of the present application, a crossbeam is provided, comprising: a first splicing piece, a second splicing piece, and a connecting assembly as described in any of the above embodiments, wherein the connecting assembly is used to splice and fix the first splicing piece and the second splicing piece to each other.

[0014] According to another aspect of an embodiment of the present application, a calibration device is provided, comprising: a column, a calibration instrument and the crossbeam described in the above embodiment, wherein the crossbeam is liftably connected to the column, the calibration instrument is arranged on the crossbeam, and the calibration instrument is used to calibrate the car.

[0015] In the embodiment of the present application, the first conical groove and the first fixing hole are partially opposite to each other. When the first locking member is used for fixing, the first conical portion and the first conical groove are pressed against each other, so that the connecting rod and the first splicing piece move in the first direction, thereby making the connection between the first splicing piece and the second splicing piece tighter and firmer, thereby ensuring the stability of the beam, making the performance index of the spliced ​​beam closer to the integrally formed beam, and being able to adapt to mechanical equipment with higher working efficiency requirements. In addition, the assembly and disassembly operations of the first splicing piece and the second splicing piece are simple, and can be assembled or disassembled quickly and efficiently, saving assembly and disassembly time, and reducing manpower and material costs.

[0016] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0018] Figure 1 A three-dimensional diagram of a crossbeam provided by an embodiment of the utility model is shown;

[0019] Figure 2 A three-dimensional diagram showing another perspective of the crossbeam provided by an embodiment of the utility model;

[0020] Figure 3 A cross-sectional view of a beam provided by an embodiment of the utility model is shown;

[0021] Figure 4 A cross-sectional view of another crossbeam provided by an embodiment of the utility model is shown;

[0022] Figure 5A stereogram of a connection assembly provided by an embodiment of the utility model is shown;

[0023] Figure 6 An exploded view of a connection assembly provided by an embodiment of the utility model is shown;

[0024] Figure 7 A cross-sectional view of a connection assembly provided by an embodiment of the utility model is shown;

[0025] Figure 8 Shows Figure 3 Enlarged schematic diagram of point E in the middle.

[0026] The reference numerals in the specific implementation manner are as follows:

[0027] 100, beam, 200, connecting assembly;

[0028] 11. first assembling piece, 12. second assembling piece, 13. first fixing hole, 14. second fixing hole, 15. mounting hole;

[0029] 21. connecting rod, 22. first locking member, 23. second locking member, 24. fixing seat;

[0030] 211, first tapered groove, 212, second tapered groove;

[0031] 221, first tapered portion, 222, limiting protrusion, 223, screw;

[0032] 231, second tapered portion;

[0033] 241. Connecting hole, 242. Third fixing hole, 243. Positioning portion. DETAILED DESCRIPTION

[0034] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0036] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0037] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0038] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0039] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0040] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0041] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0042] A crossbeam is a horizontal hook perpendicular to the main structure. It plays a supporting and fixing role with its strength, rigidity and stability. It is widely used in the fields of construction, vehicles, ships, rail transportation, and mechanical equipment. The mechanical equipment can be mechanical equipment in different fields, such as automobile maintenance, medical, industrial production, and cargo transportation. There are many types of crossbeams, which can be divided into solid crossbeams, hollow crossbeams, steel pipe crossbeams, etc. Different types of crossbeams are suitable for different fields.

[0043] The inventor of the present application has noticed that in mechanical equipment, crossbeams are widely used, for example, crossbeams of calibration equipment are used to install and fix calibration instruments so that the calibration instruments can calibrate cars; crossbeams used to support machine tools of mechanical equipment; crossbeams used to connect two mechanical equipment and span over the cargo space for hanging, translating, and lifting cargo, etc. However, due to the requirements of mechanical equipment functions or performance indicators, the length of structures similar to crossbeams in mechanical equipment is relatively large, which is very inconvenient when moving and transporting mechanical equipment.

[0044] In order to solve the above-mentioned problem caused by the long length of the beam, a long beam can be split into multiple short beam mechanisms. When using the beam, the required long beam can be obtained by splicing the multiple beam mechanisms. When moving and transporting, the long beam can be disassembled into multiple short beam mechanisms, which is more convenient for movement and transportation. Beams of different lengths can also be spliced ​​as needed, which is more applicable. However, how to make the beam install, disassemble and other operations without spending a lot of manpower, material resources and costs, assemble and disassemble more simply and efficiently, and make the spliced ​​beam meet the performance index requirements of mechanical equipment and adapt to mechanical equipment with higher work efficiency requirements has become the focus of research.

[0045] In order to ensure that the spliced ​​beams can meet the performance index requirements, the inventors of the present application have designed a connection assembly after in-depth research. The connection assembly includes a beam connecting shaft and a locking piece. The side wall of the beam connecting shaft is provided with a tapered groove, and one end of the locking piece is provided with a tapered portion. When using the connection assembly, one end of the beam connecting shaft can be first fixedly connected to one section of the beam, and then the other end of the beam connecting shaft can be inserted into the other section of the beam, and finally the locking piece can be inserted into the fixing hole on the beam, so that the tapered portion on the locking piece and the tapered groove on the beam connecting shaft are squeezed and fixed to each other, and the two sections of the beam can be spliced ​​and fixed; when the two sections of the beam need to be disassembled, it is only necessary to pull the locking piece out of the fixing hole on the beam for a distance so that the tapered portion on the locking piece is separated from the tapered groove on the beam connecting shaft, and the beam connecting shaft can be pulled out from the beam, so that the beam connecting shaft and the other section of the beam fixedly connected thereto are separated from the above-mentioned beam. The splicing and disassembly of the two sections of beams are simple, and the beams can be connected or disassembled quickly and efficiently, saving assembly and disassembly time, and reducing manpower, material resources and costs.

[0046] In addition, when the beam connecting shaft is inserted into the beam along a first direction, the center of the tapered groove on the beam connecting shaft is located on the side of the center of the fixing hole on the beam facing a second direction opposite to the first direction. When the locking piece is inserted inward into the fixing hole, the tapered portion and the inner wall of the tapered groove squeeze each other, so that the two sections of the beam are close to each other, and the two sections of the beam are connected more closely, so as to ensure that the spliced ​​beam is more stable and firm, and the performance indicators of the spliced ​​beam are closer to the one-piece beam, so as to adapt to mechanical equipment with higher requirements for work efficiency.

[0047] The connection assembly disclosed in the embodiment of the present application can be applied not only to the splicing and fixing of beams, but also to two other parts that need to be spliced ​​and fixed, such as two plate-shaped parts, two block-shaped parts, etc. The connection assembly can be used to connect two identical parts, or to connect two different parts, such as connecting a plate-shaped part with a block-shaped part, connecting a cylindrical part with a rectangular parallelepiped part, etc. For the convenience of description, the following embodiments are described only by taking the splicing and fixing of beams by the connection assembly as an example.

[0048] See also Figure 1 and Figure 2 , Figure 1 A three-dimensional diagram of a crossbeam provided by an embodiment of the utility model is shown. Figure 2 The figure shows a stereoscopic view of a crossbeam provided by an embodiment of the utility model from another perspective. The crossbeam 100 includes a first assembling piece 11 and a second assembling piece 12 .

[0049] The first splicing piece 11 and the second splicing piece 12 are both parts after the crossbeam 100 is segmented. When the crossbeam 100 is used, the first splicing piece 11 and the second splicing piece 12 need to be spliced ​​and fixed. The first splicing piece 11 can be located in the middle section of the crossbeam 100, that is, both ends of the first splicing piece 11 need to be spliced ​​and fixed with other splicing pieces, or it can be located at the end of the crossbeam 100, that is, only one end of the first splicing piece 11 needs to be fixedly connected with other splicing pieces. The length of the first splicing piece 11 is various, and the specific length is determined by actual needs. The shape of the first splicing piece 11 is also various, and its cross section can be rectangular, square, circular, elliptical, etc., and the specific shape is determined by the needs of mechanical equipment.

[0050] like Figure 3 As shown, Figure 3 The cross-sectional view of the crossbeam provided by the embodiment of the utility model is shown. A mounting hole 15 is provided on the first splicing piece 11 along the first direction, that is, a mounting hole 15 is provided along the direction indicated by the arrow A in the figure. The mounting hole 15 is used to accommodate the connecting rod 21. When the first splicing piece 11 and the second splicing piece 12 are spliced, one end of the connecting rod 21 needs to be inserted into the mounting hole 15 so that the first splicing piece 11 and the connecting rod 21 are fixedly connected. The mounting hole 15 is specifically provided on the surface of the first splicing piece 11 that contacts the second splicing piece 12 after the first splicing piece 11 and the second splicing piece 12 are spliced ​​and fixed. The mounting hole 15 can be a through hole, that is, the mounting hole 15 is provided through the first splicing piece 11, or it can be a blind hole, that is, the mounting hole 15 is a groove on the first splicing piece 11 for inserting the connecting rod 21. The mounting hole 15 can be a profile hole carried by the first splicing piece 11 itself, or it can be formed by processing the first splicing piece 11. The mounting hole 15 may have various shapes, and its cross section may be rectangular, square, circular, elliptical, etc. The specific shape may be set according to actual needs.

[0051] like Figure 2As shown, the first splicing piece 11 is provided with a second fixing hole 14 in a direction perpendicular to the first direction, that is, the second fixing hole 14 can be provided in any direction perpendicular to the direction indicated by the arrow A in the figure, for example, the second fixing hole 14 is provided in the direction indicated by the arrow C in the figure, or the second fixing hole 14 is provided in the direction indicated by the arrow D in the figure, etc. The second fixing hole 14 is connected with the mounting hole 15, and the second fixing hole 14 is used to accommodate the second locking member 23. After the connecting rod 21 is inserted into the mounting hole 15, the second locking member 23 is inserted into the second fixing hole 14 and moves along the second fixing hole 14 toward the inside of the first splicing piece 11, so that the second locking member 23 is fixedly connected with the connecting rod 21, thereby fixing the connecting rod and the first splicing piece 11. The second fixing hole 14 is provided on the side wall at the end of the first splicing piece 11, and can be provided in any direction perpendicular to the first direction, as long as the second fixing hole 14 is connected with the mounting hole 15, and the specific direction is not limited here. The second fixing hole 14 can be provided at only one end of the first splicing piece 11, that is, when only one end of the first splicing piece 11 needs to be connected to other splicing pieces, the second fixing hole 14 can be provided at only one end of the first splicing piece 11 that needs to be connected to other splicing pieces; the second fixing holes 14 can also be provided at both ends of the first splicing piece 11, that is, when both ends of the first splicing piece 11 need to be connected to other splicing pieces, the second fixing holes 14 need to be provided at both ends of the first splicing piece 11. The second fixing hole 14 can be a through hole or a blind hole, and the specific structure can be set according to actual needs. The second fixing hole 14 has various shapes, and its cross section can be rectangular, square, circular, elliptical, etc., and the specific shape can be set according to actual needs.

[0052] The structure of the second assembling piece 12 is similar to that of the first assembling piece 11 , and will not be described in detail herein.

[0053] Based on the above content, in order to ensure that the spliced ​​beams are more stable and firm, the embodiment of the present application provides a connection assembly, such as Figure 1 , Figure 2 and Figure 3As shown, the connection assembly 200 includes a connecting rod 21 and a first locking member 22, one end of the connecting rod 21 is used to be fixedly connected to the first assembling piece 11, and a first tapered groove 211 is provided on the side wall at the other end of the connecting rod 21, and the other end of the connecting rod 21 is used to be inserted into the second assembling piece 12 along the first direction, and the notch of the first tapered groove 211 is opposite to the orifice portion of the first fixing hole 13 on the second assembling piece 12, wherein the center of the first tapered groove 211 is located on the side of the center of the first fixing hole 13 facing the second direction, and the second direction is opposite to the first direction, and the end of the first locking member 22 has a first tapered portion 221, so that after the first locking member 22 is successively inserted into the first fixing hole 13 and the first tapered groove 211, the first tapered portion 221 and the inner wall of the first tapered groove 211 are squeezed against each other, and then the first assembling piece 11 is driven by the connecting rod 21 to move in the first direction, so that the first assembling piece 11 and the second assembling piece 12 abut and are fixed to each other.

[0054] The connecting rod 21 is a main component for connecting the first splicing piece 11 and the second splicing piece 12. One end of the connecting rod 21 is used for fixed connection with the first splicing piece 11, and the other end is used for fixed connection with the second splicing piece 12, so that the first splicing piece 11 and the second splicing piece 12 are spliced ​​and fixed. The connecting rod 21 can be inserted into the first splicing piece 11 by inserting one end of the connecting rod 21 into the first splicing piece 11, and then passing through the first splicing piece 11 and the connecting rod 21 by screws, screws, headless nails, pipe nails and other components, so that the first splicing piece 11 and the connecting rod 21 are fixedly connected; or a thread can be set at one end of the connecting rod 21, and the end is inserted into the threaded hole on the first splicing piece 11, so that the first splicing piece 11 and the connecting rod 21 are threadedly connected. In the embodiment of the present application, as long as the first splicing piece 11 is fixedly connected to one end of the connecting rod 21, the specific connection method is not limited in the embodiment of the present application.

[0055] The length of the connecting rod 21 can be set more flexibly according to actual needs. When the first splicing piece 11 and the second splicing piece 12 are spliced, if the distance between the fixing holes on the two ends in contact with each other is large, a longer connecting rod 21 is required for connection. If the distance between the fixing holes on the two ends in contact with each other is small, a shorter connecting rod 21 is required for connection. The connecting rod 21 has various shapes, and its cross section can be circular, elliptical, etc.; the shape of the cross section at any position on the connecting rod 21 can be the same, such as a cylinder, an elliptical cylinder, etc., or it can be different, for example, the cross section at both ends is circular, and the cross section in the middle section is elliptical, etc.; the connecting rod 21 can be a columnar shape with the same cross section area at any position such as a cylinder, an elliptical cylinder, etc., or it can be an irregular columnar shape with different cross section areas at some positions such as small at both ends and large in the middle, large at both ends and small in the middle. The connecting rod 21 is made of various materials, such as iron, copper, alloy, etc.

[0056] The first tapered groove 211 is the main structure for fixed connection on the connecting rod 21, and is mainly used to abut and fix with the first locking member 22, so that the connecting rod 21 is fixedly connected to the second splicing member 12. The first tapered groove 211 is located on the side wall of one end of the connecting rod 21, and the first tapered groove 211 can be opened in any direction perpendicular to the axial direction of the connecting rod 21, that is, the first tapered groove 211 can be opened in any direction perpendicular to the first direction, such as Figure 3 As shown, the first tapered groove 211 can be opened in any direction perpendicular to the direction indicated by the arrow A in the figure, for example, the first tapered groove 211 can be opened in the direction indicated by the arrow C in the figure, the first tapered groove 211 can be opened in the direction indicated by the arrow D in the figure, etc., as long as it is ensured that when the first splicing piece 11 and the second splicing piece 12 are aligned and spliced, the first tapered groove 211 and the first fixing hole 13 can be partially opposite. The first tapered groove 211 can be located on the side wall of the end of the connecting rod 21, or on the side wall at a certain distance from the end. The first tapered groove 211 can be a pyramidal groove or a conical groove.

[0057] like Figure 3 As shown, the first locking member 22 is a main component used to fix the connection rod 21 and the second splicing piece 12. The first locking member 22 can be a member such as a screw that is fixedly connected by threaded connection, or a member such as a headless nail or a pipe nail that is fixedly connected by friction. As long as the first locking member 22 is inserted into the first fixing hole 13, the first locking member 22 and the first fixing hole 13 remain relatively fixed when no external force is applied. A first tapered portion 221 is provided at one end of the first locking member 22, and the first tapered portion 221 is used to cooperate with the first tapered groove 211 to fix the connection rod 21 and the second splicing piece 12. The first conical portion 221 may have various shapes, which may be a pyramid, a prism, a cone, or a truncated cone. The specific shape is adapted to the first conical groove 211. That is, if the first conical groove 211 is a pyramid groove, the first conical portion 221 is a pyramid or a prism adapted to the first conical groove 211; if the first conical groove 211 is a conical groove, the first conical portion 221 is a cone or a truncated cone adapted to the first conical groove 211.

[0058] like Figure 2 and Figure 3As shown, when the connecting rod 21 is inserted into the second splicing piece 12, the first tapered groove 211 is partially opposite to the first fixing hole 13, and the center of the first tapered groove 211 is located on the side of the center of the first fixing hole 13 in the direction indicated by the arrow B. When the first locking member 22 is inserted into the first fixing hole 13 along the direction indicated by the arrow C and continues to move toward the inside of the second splicing piece 12 along the direction indicated by the arrow C, the conical surface of the first tapered portion 221 and the inner wall of the first tapered groove 211 are pressed against each other, and the structure is that the two inclined surfaces are pressed against each other, and the position of the first fixing hole 13 is fixed, so that The first locking member 22 inserted into the first fixing hole 13 can only move in the direction indicated by arrow C or arrow D, and cannot move in the direction indicated by arrow A or arrow B, that is, the first tapered portion 221 can only squeeze the inner wall of the first tapered groove 211 in the direction indicated by arrow C, so that the first tapered groove 211 moves in the direction indicated by arrow A, even if the connecting rod 21 moves in the direction indicated by arrow A, and drives the first splicing piece 11 fixedly connected thereto to move in the direction indicated by arrow A, thereby making the first splicing piece 11 and the second splicing piece 12 spliced ​​to each other more tightly and firmly.

[0059] like Figure 3 As shown, when splicing the first splicing piece 11 and the second splicing piece 12, first, one end of the connecting rod 21 is fixedly connected to the first splicing piece 11, and then the other end of the connecting rod 21 is inserted into the second splicing piece 12, so that the first tapered groove 211 is partially aligned with the first fixing hole 13, and finally the first locking member 22 is inserted into the first fixing hole 13 along the direction indicated by the arrow A, and the conical surface of the first tapered portion 221 and the inner wall of the first tapered groove 211 are squeezed against each other, so that the connecting rod 21 drives the first splicing piece 11 to move along the direction indicated by the arrow A, thereby realizing the splicing and fixation of the first splicing piece 11 and the second splicing piece 12. When disassembling the first assembling piece 11 and the second assembling piece 12, the first locking piece 22 is pulled out of the first fixing hole 13 along the direction indicated by the arrow D, so that the first tapered portion 221 is separated from the first tapered groove 211, and then the first assembling piece 11 is moved along the direction indicated by the arrow B, thereby driving the connecting rod 21 to move along the direction indicated by the arrow B, that is, the connecting rod 21 is pulled out from the second assembling piece 12, and the first assembling piece 11 and the second assembling piece 12 can be disassembled.

[0060] In the above embodiment, the first tapered groove and the first fixing hole are partially opposite to each other. When the first locking member is used for fixing, the first tapered portion and the first tapered groove are pressed against each other, so that the connecting rod and the first splicing piece move in the first direction, thereby making the connection between the first splicing piece and the second splicing piece tighter and firmer, thereby ensuring the stability of the beam, making the performance index of the spliced ​​beam closer to the integrally formed beam, and being able to adapt to mechanical equipment with higher working efficiency requirements. In addition, the assembly and disassembly operations of the first splicing piece and the second splicing piece are simple, and can be assembled or disassembled quickly and efficiently, saving assembly and disassembly time, and reducing manpower and material costs.

[0061] In order to make the fixed connection between the first splicing piece and the connecting assembly simpler and more efficient, in some embodiments of the present application, for example Figure 2 and Figure 3 As shown, a second tapered groove 212 is provided on the side wall of the connecting rod 21 at the other end opposite to the end where the first tapered groove 211 is located. The end where the second tapered groove 212 is located on the connecting rod 21 is used to align the center of the second tapered groove 212 with the center of the second fixing hole 14 on the first assembling piece 11 when it is inserted into the first assembling piece 11 along the second direction. The connecting assembly 200 also includes a second locking member 23, and a second tapered portion 231 is provided at one end of the second locking member 23. When the second locking member 23 is inserted inwardly into the second fixing hole 14, the center of the second tapered portion 231 is aligned with the center of the second tapered groove 212 and fixedly connected to each other, so as to fix the connecting rod 21 to the first assembling piece 11.

[0062] The second tapered groove 212 has a similar structure to the first tapered groove 211 , the second locking member 23 has a similar structure to the first locking member 22 , and the second tapered portion 231 has a similar structure to the first tapered portion 221 , which will not be described in detail herein.

[0063] like Figure 3 As shown, one end of the connecting rod 21 where the second conical groove 212 is located is inserted into the mounting hole 15 of the first splicing member 11 along the direction indicated by the arrow B, as shown in FIG. Figure 2 As shown, the center of the second tapered groove 212 is aligned with the center of the second fixing hole 14. When fixing the connecting rod 21 and the first splicing piece 11, the second locking piece 23 is inserted into the second fixing hole 14 along the direction indicated by the arrow C and moved toward the inside of the first splicing piece 11, so that the center of the second tapered portion 231 is aligned with the center of the second tapered groove 212 and fixedly connected to each other, even if the inner wall of the second tapered groove 212 is at least partially squeezed against the second tapered portion 231, thereby fixing the connecting rod 21 to the first splicing piece 11.

[0064] In the above-mentioned embodiment, after aligning the center of the second conical groove with the center of the second fixing hole, the second locking piece is used to fix the connecting rod and the first splicing piece, so that the movement of the connecting rod in all directions is restricted, and the contact area between the second conical portion and the second conical groove is larger, which has a better fixing effect on the connecting rod, thereby ensuring the stability of the overall structure of the beam.

[0065] In order to ensure the stability of the connecting rod after it is inserted into the splicing piece, the diameter of the connecting rod is often made slightly smaller than the inner diameter of the mounting hole on the splicing piece, so as to increase the contact area between the connecting rod and the inner wall of the mounting hole as much as possible, thereby ensuring that the connecting rod is not prone to shaking after being inserted into the splicing piece. However, since the diameter of the connecting rod is relatively close to the inner diameter of the mounting hole, it is difficult to insert or remove the connecting rod from the mounting hole. The process of inserting and removing the connecting rod requires a lot of effort, which is inconvenient to use.

[0066] In order to solve the above problems, in some embodiments of the present application, Figure 3 As shown, the cross-sectional area of ​​the two ends of the connecting rod 21 along the third direction is smaller than the cross-sectional area of ​​the middle section of the connecting rod 21 along the third direction, and the third direction is perpendicular to the first direction.

[0067] When the connecting rod 21 is cylindrical, the connecting rod 21 is set to a structure in which the diameters of the two ends are smaller than the diameter of the middle section. The smaller diameters of the two ends ensure that the connecting rod 21 can be easily inserted into the mounting hole 15 when it is inserted into the first splicing piece 11 or the second splicing piece 12. When the connecting rod 21 is inserted into or pulled out of the first splicing piece 11 or the second splicing piece 12, it does not need to spend a lot of effort, which reduces the difficulty of installation and saves manpower and material resources. The larger diameter of the middle section can not only ensure that the shaking of the connecting rod 21 in any direction perpendicular to the direction indicated by the arrow A in the mounting hole 15 is limited, but also ensure that the contact area between the connecting rod 21 and the inner wall of the mounting hole 15 is large enough when the connecting rod 21 is inserted into the mounting hole 15, thereby ensuring the stability of the connection between the connecting rod 21 and the first splicing piece 11 or the second splicing piece 12, thereby ensuring the stability of the crossbeam.

[0068] The first assembly piece and the second assembly piece are often made of opaque materials. When the orientations of the notches of the first tapered groove and the second tapered groove are different, when one end of the connecting rod is inserted into the first assembly piece or the second assembly piece, the position of the notches of the first tapered groove or the second tapered groove cannot be accurately determined. When fixing the connecting rod to the first assembly piece or the second assembly piece, it is difficult to align the first tapered groove and the first fixing hole and the second tapered groove and the second fixing hole.

[0069] In order to solve the above problems, in some embodiments of the present application, Figure 3As shown, the notch of the first tapered groove 211 and the notch of the second tapered groove 212 are arranged in the same direction. When the end of the connecting rod 21 where the second tapered groove 212 is located is plugged into the first splicing piece 11, although the direction of the notch of the second tapered groove 212 cannot be directly observed through the first splicing piece 11, since the notch of the first tapered groove 211 and the notch of the second tapered groove 212 are in the same direction, the direction of the notch of the second tapered groove 212 can be directly determined by observing the direction of the notch of the first tapered groove 211, and the center of the second tapered groove 212 can be aligned with the center of the second fixing hole 14 more easily. Similarly, when the end of the connecting rod 21 where the first tapered groove 211 is located is inserted into the second splicing piece 12, since the second fixing hole 14 is aligned with the second tapered groove 212, the notch direction of the first tapered groove 211 can be directly observed by observing the position of the second fixing hole 14 on the first splicing piece 11, and the first tapered groove 211 is more easily aligned with the first fixing hole portion. The above embodiment makes the use of the connecting assembly more convenient, and reduces the difficulty of aligning the first tapered groove with the first fixing hole and the second tapered groove with the second fixing hole.

[0070] If the first fixing hole on the second splicing piece is used to directly connect with the first locking piece, then since the size of the first fixing hole cannot be changed, the second splicing piece can only use the first locking piece of one specification to splice and fix the connecting rod and the second splicing piece, and it is impossible to adapt to first locking pieces of different specifications, and the adaptability of the connecting assembly is poor. In order to make the adaptability of the connecting assembly stronger, in some embodiments of the present application, such as Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, Figure 4 A cross-sectional view of another crossbeam provided by an embodiment of the utility model is shown. Figure 5 A stereogram of a connection assembly provided by an embodiment of the utility model is shown. Figure 6 An exploded view of a connection assembly provided by an embodiment of the utility model is shown. Figure 7 A cross-sectional view of a connection assembly provided by an embodiment of the utility model is shown, wherein the connection assembly 200 further includes a fixing seat 24, the fixing seat 24 is used to be at least partially inserted into the first fixing hole 13, a connecting hole 241 is provided in the fixing seat 24 along the second direction, one end of the connecting rod 21 where the first conical groove 211 is located is plugged into the connecting hole 241, a third fixing hole 242 coaxial with the first fixing hole 13 is provided on the fixing seat 24, the third fixing hole 242 is communicated with the connecting hole 241, the first locking member 22 is plugged into the third fixing hole 242, and is fixedly connected to the connecting rod 21.

[0071] The fixing seat 24 is a main component for connecting the first locking member and the connecting rod. The overall shape of the fixing seat 24 is adapted to the shape of the first fixing hole 13, that is, when the cross section of the first fixing hole 13 is circular, the fixing seat 24 can be cylindrical, truncated cone, etc.; when the cross section of the first fixing hole 13 is rectangular, the fixing seat 24 can be a cuboid, a quadrangular cone, etc. It is only necessary to ensure that the fixing seat 24 can be at least partially inserted into the first fixing hole 13, and the connecting hole on the fixing seat 24 is connected to the mounting hole on the second splicing piece 12.

[0072] The connecting hole 241 is a structure on the fixing seat 24 for connecting with the connecting rod 21. The connecting hole 241 can be a blind hole or a through hole. The connecting hole 241 has various shapes, such as circular, elliptical, etc. The specific shape is adapted to the shapes of the two ends of the connecting rod 21. When the cross-section of the two ends of the connecting rod 21 along the direction indicated by the arrow C is circular, the connecting hole 241 can be a circular hole; when the cross-section of the two ends of the connecting rod 21 along the direction indicated by the arrow C is elliptical, the connecting hole 241 can be an elliptical hole. The size of the connecting hole 241 is adapted to the size of the two ends of the connecting rod 21, as long as one end of the connecting rod 21 can be inserted into the connecting hole 241.

[0073] The third fixing hole 242 is a structure on the fixing seat 24 for accommodating the first locking member 22, and when the fixing seat 24 is at least partially inserted into the first fixing hole 13, the center of the third fixing hole 242 is aligned with the center of the first fixing hole 13, so that when the first tapered groove 211 is partially opposite to the first fixing hole 13, the first tapered groove 211 is also partially opposite to the third fixing hole 242. The third fixing hole 242 is connected to the connecting hole 241, and when the end of the connecting rod 21 where the first tapered groove 211 is located is inserted into the connecting hole 241, and the first tapered groove 211 is partially opposite to the third fixing hole 242, the first locking member 22 is inserted into the third fixing hole 242 and moves in the direction indicated by the arrow C, so that the first tapered portion and the inside of the first tapered groove 211 are pressed against each other, so that the connecting rod moves in the direction indicated by the arrow A, and drives the first splicing piece fixedly connected thereto to move in the direction indicated by the arrow A, thereby splicing and fixing the first splicing piece and the second splicing piece to each other.

[0074] The third fixing hole 242 can be a through hole or a blind hole, and the specific structure can be set according to actual needs. The third fixing hole 242 has various shapes, and its cross section can be rectangular, square, circular, elliptical, etc., and the specific shape can be set according to actual needs. Different sizes of third fixing holes 242 can be opened on the fixing seat 24 of the same size to accommodate first locking members 22 of different specifications. Different sizes of fixing seats 24 can be formed by opening different sizes of third fixing holes 242 on the fixing seat 24 of the same size. When using the connecting assembly 200, it is only necessary to open a uniform size of the first fixing hole 13 on the second splicing piece 12 to accommodate a uniform size of the fixing seat 24, and the second splicing piece 12 can use different sizes of first locking members 22 by inserting different sizes of fixing seats 24 into the first fixing hole 13.

[0075] Similarly, the fixing seat may be at least partially inserted into the second fixing hole. The specific setting method is similar to the setting method of at least partially inserting the fixing seat into the first fixing hole, which will not be repeated here.

[0076] The above embodiment sets a fixing seat so that first fixing holes of the same size can be connected to first locking members of different specifications, thereby making the connection component more adaptable and more adaptable to different connection requirements, and a suitable connection component can be selected according to different connection requirements.

[0077] In order to make the connection between the fixing seat and the second splicing piece more secure, in some embodiments of the present application, for example Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the fixing seat 24 is partially inserted into the first fixing hole 13 , and the side wall of the fixing seat 24 at one end outside the first fixing hole 13 extends outward to form a positioning portion 243 , which is used to be fixedly connected to the second splicing piece 12 .

[0078] The positioning portion 243 is used to fix the fixing seat 24 on the second splicing piece 12. The positioning portion 243 can be formed by extending outwards from all sides of the side wall of the fixing seat 24, or by extending outwards from a certain position of the side wall of the fixing seat 24. The shape of the positioning portion 243 is various, such as a rectangle, a square, an ellipse, etc. A through hole can be opened on the positioning portion 243, and the through hole can be aligned with the positioning groove on the second splicing piece 12, and finally the positioning portion 243 and the second splicing piece 12 are fixedly connected by screws, nails, screws and other components, and buckles, snap rings and other structures can also be set on the positioning portion 243, and fixedly connected with the second splicing piece 12 by a snap connection mode, and the positioning portion 243 and the second splicing piece 12 can also be fixedly connected by a glue, tape and other tools by a bonding mode.

[0079] The above embodiment, by setting the positioning part, on the one hand, makes the fixing seat fixedly connected with the second splicing piece, can effectively prevent the fixing seat from falling off from the second splicing piece, thereby preventing the parts of the connecting assembly from being lost, and on the other hand, can ensure that after the fixing seat is inserted into the first fixing hole, the fixing seat no longer moves, thereby ensuring that the connection hole on the fixing seat and the mounting hole on the second splicing piece are aligned and no longer deviate, thereby improving the splicing efficiency. Secondly, the positioning part can play a limiting role when the fixing seat is inserted into the first fixing hole, can limit the distance of the fixing seat inserted into the first fixing hole, and it is easier to align the connection hole on the fixing seat with the mounting hole on the second splicing piece. In addition, the opening direction of the connection hole on the fixing seat can also be determined by the positioning part. For example, when only a certain position of the side wall of the fixing seat extends outward to form the positioning part, the positional relationship between the positioning part and the opening of the connection hole is fixed and unchanged. When the fixing seat is partially inserted into the first fixing hole, the opening of the connection hole can be aligned with the opening of the mounting hole on the second splicing piece by adjusting the position of the positioning part.

[0080] In order to further prevent parts from being lost, in some embodiments of the present application, Figure 3 , Figure 7 and Figure 8 As shown, a limiting protrusion 222 is provided on the first locking member 22 at a position where the thick end of the first conical portion 221 is away from the thin end of the first conical portion 221. The limiting protrusion 222 is used to abut against the limiting wall in the first fixing hole 13 when the first locking member 22 moves outward relative to the first fixing hole 13, so as to limit the first locking member 22 from being withdrawn from the first fixing hole 13.

[0081] The limiting protrusion 222 is used to limit the first locking member from being withdrawn from the first fixing hole. The limiting protrusion 222 can be directly integrated with the first conical portion 221, for example, the cross-sectional area of ​​the thick end of the first conical portion 221 along the direction indicated by the arrow B is larger than the cross-sectional area of ​​the position on the first locking member 22 connected to the first fixing hole 13 along the direction indicated by the arrow B, so that the thick end of the first conical portion 221 forms the limiting protrusion 222, or the thick end of the first conical portion 221 extends in any direction perpendicular to the direction indicated by the arrow D to form the limiting protrusion 222; it can also be independently provided on the first locking member 22, for example, the limiting protrusion 222 is extended in any direction perpendicular to the direction indicated by the arrow D from the position on the first locking member 22 with the first conical portion 221 as the starting point, and is offset by a certain distance in the direction indicated by the arrow D to form the limiting protrusion 222. The limiting protrusion 222 may be formed by the first locking member 22 extending in all directions perpendicular to the direction indicated by the arrow D, or may be formed by the first locking member 22 extending in a certain direction perpendicular to the direction indicated by the arrow D.

[0082] In addition, when the connection assembly 200 further includes a fixing seat 24, the limiting protrusion 222 is used to abut against the limiting wall in the third fixing hole 242 when the first locking member 22 is withdrawn from the third fixing hole 242. The inner diameter of the end of the third fixing hole 242 away from the connecting hole 241 is smaller than the inner diameter of the position of the third fixing hole 242 close to the connecting hole 241, so that the position of the third fixing hole 242 with a smaller inner diameter protrudes inwardly compared to the position with a larger inner diameter to form a limiting wall.

[0083] The above-mentioned embodiment uses a limit protrusion to withdraw the first locking piece from the first fixing hole. On the one hand, it can prevent the first locking piece from being completely withdrawn from the first fixing hole, thereby preventing the first locking piece from being lost; on the other hand, it can keep the first locking piece and the first fixing hole in a connected state at all times. During assembly or disassembly, the distance that the first locking piece moves inward or outward can be effectively reduced, thereby speeding up assembly and disassembly, saving time and improving efficiency.

[0084] In some embodiments of the present application, Figure 3 and Figure 7 As shown, the first locking member 22 includes a screw 223, the screw 223 is threadedly connected to the first fixing hole 13, and the first tapered portion 221 at the end of the screw 223 abuts against the inner wall of the first tapered groove 211. In addition, when the connection assembly 200 also includes a fixing seat 24, the third fixing hole 242 is a threaded hole, and when the first locking member 22 is inserted into the third fixing hole, the screw 223 is threadedly connected to the third fixing hole 242. In the above embodiment, the first locking member is connected to the first fixing hole by threading the screw and the first fixing hole, and the first tapered portion can be quickly abutted or separated from the inside of the first tapered groove by rotating the screw, which speeds up the assembly and disassembly of the beam, saves time, and improves efficiency.

[0085] According to another aspect of the embodiment of the present application, please refer again to Figure 1 , a crossbeam 100 is also provided, the crossbeam 100 includes a first splicing piece 11, a second splicing piece 12 and a connecting assembly as described in any of the above embodiments, the connecting assembly is used to splice and fix the first splicing piece 11 and the second splicing piece 12 to each other.

[0086] According to another aspect of an embodiment of the present application, a calibration device is also provided, which includes a column, a calibration instrument and the crossbeam described in the above embodiment, the crossbeam can be raised and lowered to be connected to the column, the calibration instrument is arranged on the crossbeam, and the calibration instrument is used to calibrate the car.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A connection assembly, characterized in that: It includes: a connecting rod and a first locking member; One end of the connecting rod is used for fixed connection with the first splicing piece, and a first tapered groove is provided on the side wall at the other end of the connecting rod. The other end of the connecting rod is used for being inserted into the second splicing piece along the first direction, and the notch of the first tapered groove is opposite to the orifice of the first fixing hole on the second splicing piece, wherein the center of the first tapered groove is located on the side of the center of the first fixing hole facing the second direction, and the second direction is opposite to the first direction; The end of the first locking member has a first tapered portion, so that after the first locking member is inserted into the first fixing hole and the first tapered groove in turn, the first tapered portion and the inner wall of the first tapered groove are pressed against each other, and then the first splicing member is driven by the connecting rod to move in the first direction, so that the first splicing member and the second splicing member abut and are fixed to each other.

2. The connection assembly according to claim 1, characterized in that: A second tapered groove is formed on the side wall of the connecting rod at the other end opposite to the end where the first tapered groove is located; The end of the connecting rod where the second tapered groove is located is used to align the center of the second tapered groove with the center of the second fixing hole on the first assembling piece when the connecting rod is inserted into the first assembling piece along the second direction; The connecting assembly also includes a second locking member, one end of which is provided with a second tapered portion, and the second locking member is used to align the center of the second tapered portion with the center of the second tapered groove and fix them to each other when the second locking member is inserted inwardly into the second fixing hole, so as to fix the connecting rod to the first splicing member.

3. The connection assembly according to claim 1, characterized in that: The cross-sectional areas of the two ends of the connecting rod along the third direction are smaller than the cross-sectional area of ​​the middle section of the connecting rod along the third direction, and the third direction is perpendicular to the first direction.

4. The connection assembly according to claim 2, characterized in that: The notch of the first tapered groove and the notch of the second tapered groove are arranged in the same direction.

5. The connection assembly according to claim 1, characterized in that: The connecting assembly further comprises a fixing seat, and the fixing seat is used to be at least partially inserted into the first fixing hole; The fixing seat is provided with a connecting hole along the second direction, and the end of the connecting rod where the first conical groove is located is plugged into the connecting hole; The fixing seat is provided with a third fixing hole coaxial with the first fixing hole, and the third fixing hole is communicated with the connecting hole; The first locking member is inserted into the third fixing hole and fixedly connected to the connecting rod.

6. The connection assembly according to claim 5, characterized in that: The fixing seat is used to be partially inserted into the first fixing hole, and a side wall of the fixing seat at one end outside the first fixing hole extends outward to form a positioning portion, and the positioning portion is used to be fixedly connected to the second splicing piece.

7. The connection assembly according to any one of claims 1 to 6, characterized in that: A limiting protrusion is provided on the first locking member at a position where the thick end of the first conical portion is away from the thin end of the first conical portion, and the limiting protrusion is used to abut against a limiting wall in the first fixing hole when the first locking member moves outward relative to the first fixing hole, so as to limit the first locking member from being withdrawn from the first fixing hole.

8. The connection assembly according to any one of claims 1 to 6, characterized in that: The first locking member includes a screw rod, the screw rod is threadedly connected to the first fixing hole, and the first tapered portion at the end of the screw rod abuts against the inner wall of the first tapered groove.

9. A beam, characterized in that: include: A first assembling piece, a second assembling piece and a connecting assembly as claimed in any one of claims 1 to 8, wherein the connecting assembly is used to connect and fix the first assembling piece and the second assembling piece to each other.

10. A calibration device, characterized in that: include: A column, a calibration instrument and a crossbeam as claimed in claim 9, wherein the crossbeam is liftably connected to the column, the calibration instrument is arranged on the crossbeam, and the calibration instrument is used to calibrate the car.

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