Built-in hidden connection structure, cable bridge and assembly method thereof

Abstract

The invention relates to the technical field of cable bridges, in particular to a built-in hidden connecting structure, a cable bridge and an assembling method thereof.The built-in hidden connecting structure comprises a positioning mechanism, the positioning mechanism comprises a transverse positioning assembly and a longitudinal positioning assembly, and the transverse positioning assembly is matched with the longitudinal positioning assembly so that the opposite ends of two bridge bodies can be aligned; the retaining assembly is arranged on one group of bridge frame bodies, a driving shaft is arranged on the retaining assembly, the driving shaft is matched with a driving groove formed in the transverse positioning assembly, and the transverse positioning assembly can be kept in a locked state after the transverse positioning assembly executes the positioning action; the differential assembly is connected with the longitudinal positioning assembly and the driving shaft, and when the transverse positioning assembly is kept in the locking state, the driving shaft can drive the longitudinal positioning assembly to act through the differential assembly; and the locking assembly is connected with the longitudinal positioning assembly and is matched with the transverse positioning assembly, and the two groups of bridge bodies can be locked in the length direction when the longitudinal positioning assembly acts, so that the installation is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of cable bridges, and in particular to a built-in hidden connection structure, a cable bridge and an assembling method thereof. Background Art

[0002] The cable tray is composed of brackets, supports and installation accessories. The cable tray can be installed independently in the building or attached to various buildings (structures) and pipe gallery brackets. It mainly supports cables and other wire harnesses and has good protective effect and aesthetics.

[0003] In order to facilitate production, transportation, assembly and disassembly, cable trays are often divided into multiple sections and then connected by bolts. This connection method requires the installation of multiple sets of bolts to fix the two cable trays together. Although this method is simple to operate, it requires a lot of operation. During the installation process, in order to improve the aesthetics and connection stability, the ends of the two connected sets of cable trays need to be completely aligned, which greatly increases the difficulty of installation, resulting in slow construction speed and long construction period of the cable tray. Summary of the invention

[0004] The object of the present invention is to provide a built-in hidden connection structure, a cable tray and an assembly method thereof to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A built-in hidden connection structure is arranged between two sets of interconnected bridge bodies, comprising: A positioning mechanism is arranged between the two groups of bridge bodies, and the positioning mechanism includes a transverse positioning component and a longitudinal positioning component. The transverse positioning component cooperates with the longitudinal positioning component to align the opposite ends of the two groups of bridge bodies; A retaining assembly is arranged on one of the bridge bodies, and a driving shaft is arranged on the retaining assembly, and the driving shaft cooperates with a driving groove arranged on the lateral positioning assembly, so that the lateral positioning assembly can be kept in a locked state after the lateral positioning assembly performs a positioning action; A differential assembly, connecting the longitudinal positioning assembly and the drive shaft, wherein when the transverse positioning assembly is kept in a locked state, the drive shaft can drive the longitudinal positioning assembly to move through the differential assembly; The locking assembly is connected to the longitudinal positioning assembly and cooperates with the transverse positioning assembly, and can lock the two groups of bridge bodies along their length direction when the longitudinal positioning assembly is in action.

[0006] As a further solution of the present invention: the lateral positioning assembly comprises two groups of positioning shafts rotatably mounted at one end of the bridge body and a follower frame arranged at one end of the other group of the bridge body, and the follower frame is slidably connected with a second guide member arranged on the bridge body; A group of first limiting members are respectively arranged at both ends of the follower frame, and the first limiting members cooperate with the positioning shaft group to enable the opposite ends of the two groups of bridge frame bodies to be horizontally aligned.

[0007] As a further solution of the present invention: the longitudinal positioning assembly includes a second limiter slidably arranged through the bridge body, the second limiter cooperates with a positioning groove arranged on another group of the bridge bodies, and can make the opposite ends of the two groups of the bridge bodies longitudinally aligned; Two guiding parts are formed at the opening of the positioning groove, and the guiding parts can guide the second limiting member to enter the positioning groove.

[0008] As a further solution of the present invention: the holding assembly includes a turntable rotatably mounted on the bridge body, the drive shaft is arranged at an eccentric position of the turntable, and a protrusion is further arranged at the bottom of the turntable, and the protrusion is adapted to the energy storage structure arranged on the bridge body; The protrusion includes an arc protrusion and an inclined protrusion arranged at the bottom of the turntable, the center of the arc protrusion is coaxial with the rotation axis of the turntable, and the distance between the inclined protrusion and the turntable gradually shortens in a direction away from the arc protrusion.

[0009] As a further solution of the present invention: the energy storage structure comprises a bracket detachably mounted on the bridge frame body, a sliding member is slidably mounted on the bracket, and an abutment shaft abutting against the protruding member is provided on the sliding member; The energy storage structure also includes a transverse axis connected to the bracket and passing through the sliding member, and a cylindrical spring is sleeved on the transverse axis. One end of the cylindrical spring is connected to the bracket, and the other end is connected to the sliding member.

[0010] As a further solution of the present invention: the driving groove is arranged on the follower frame, including a circular arc groove and a straight groove; The circumferential radius of the arc groove is the same as the radius of the circular motion of the driving shaft, and the length direction of the straight groove is perpendicular to the length direction of the second guide member.

[0011] As a further solution of the present invention: the differential assembly comprises a transverse frame slidably connected to the second guide member, the transverse frame is provided with a retardation groove along its length direction, and the drive shaft can slide in the retardation groove; The differential assembly further comprises a connecting frame connected to the second position-limiting member, the connecting frame is provided with a transverse groove, and the engaging shaft arranged at the end of the transverse frame can slide in the transverse groove.

[0012] As a further solution of the present invention: the locking assembly includes a first guide member connected to the bridge frame body, a connecting member is slidably mounted on the first guide member, a traction rod is rotatably mounted on the connecting member, and one end of the traction rod away from the connecting member is rotatably connected to the connecting frame; The connecting member is provided with a locking shaft, and the locking shaft can pass through the connecting portion provided on the first limiting member and the locking groove provided on the bridge body.

[0013] A cable bridge comprises the built-in hidden connection structure.

[0014] A method for assembling the cable tray as described above comprises the following steps: Step 1: fix the first set of bridge bodies on the top of the building, and then fit another set of bridge bodies to the opposite end of the first set of bridge bodies; Step 2: Control the holding component to move, so that the drive shaft moves in a circle. The drive shaft cooperates with the drive slot to drive the lateral positioning component to move, so that the opposite ends of the two sets of bridge bodies are aligned horizontally. During this process, the longitudinal positioning component is in a static state under the action of the differential component. Step 3: After the opposite ends of the two sets of bridge bodies are aligned horizontally, the differential assembly is activated to activate the longitudinal positioning assembly, thereby aligning the opposite ends of the two sets of bridge bodies longitudinally; Step 4: When the opposite ends of the two groups of bridge bodies are longitudinally aligned, the locking assembly is activated to lock the two groups of bridge bodies along their length direction.

[0015] Compared with the prior art, the present invention has the following beneficial effects: By setting the positioning mechanism, when connecting two sets of bridge bodies, it is not necessary to ensure that the two sets of bridge bodies are completely aligned. Under a certain degree of deviation, the first limiter and the clamping roller, and the second limiter and the positioning groove can be used to cooperate to more conveniently achieve the alignment of the two sets of bridge bodies, thereby reducing the difficulty of assembly operation, shortening the construction period, and improving the external aesthetics of the cable bridge installed; By setting the retaining assembly, after the opposite ends of the two groups of bridge frame bodies are aligned, the driving shaft can abut against the end of the driving groove. At the same time, under the cooperation of the inclined protrusion and the abutting shaft, the elastic force of the cylindrical spring can drive the driving shaft to have a tendency to move toward the end of the driving groove, so that the driving shaft can be locked to a certain extent, thereby improving the stability of the first limit member and the second limit member after the opposite ends of the two groups of bridge frame bodies are aligned, and ensuring the stability of the two groups of bridge frame bodies after alignment; By setting the driving slot and the differential assembly, in the process of the turntable driving the driving shaft to make a circular motion, the first limit member and the second limit member can move in sequence, and respectively cooperate with the positioning shaft group and the positioning slot, so as to respectively achieve the purpose of horizontal positioning and longitudinal positioning of the two groups of bridge frame bodies, and ensure the alignment effect between the two groups of bridge frame bodies. At the same time, after the driving shaft rotates to the end, it will not be subjected to the force of reverse movement, thereby improving the stability of the driving shaft, and ensuring the alignment effect and stability between the two groups of bridge frame bodies; By setting up the locking assembly, after the two groups of bridge frame bodies complete the lateral positioning and longitudinal positioning, the locking shaft can pass through the connecting part and the locking groove in sequence, so that the two groups of bridge frame bodies can be locked along their length direction, so that the two groups of bridge frame bodies can be connected as one. Compared with the traditional bolt connection method, the operation is more convenient and the connection speed is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a structural schematic diagram of an embodiment of a cable bridge.

[0017] Figure 2 This is a schematic diagram of the structure of a cable bridge after the inner lining frame 2 is removed in an embodiment.

[0018] Figure 3 for Figure 2 A magnified view of the structure at center.

[0019] Figure 4 for Figure 2 A magnified view of the structure at point B.

[0020] Figure 5 A structural schematic diagram of an embodiment of a built-in hidden connection structure.

[0021] Figure 6 An exploded view of the structure of the components in one embodiment of the built-in hidden connection structure.

[0022] Figure 7 This is a schematic structural diagram of a drive shaft and a drive groove in an embodiment of a built-in hidden connection structure.

[0023] Figure 8 This is a structural exploded diagram of a differential component in an embodiment of a built-in hidden connection structure.

[0024] In the figure: 1. bridge frame body; 101. positioning groove; 102. guide part; 103. locking groove; 2. lining frame; 3. positioning shaft; 4. turntable; 401. arc protrusion; 402. inclined protrusion; 403. driving part; 5. driving shaft; 6. abutment shaft; 7. sliding member; 8. horizontal shaft; 9. cylindrical spring; 10. bracket; 11. follower frame; 1101. arc groove; 1102. flat groove; 12. first limit member; 1201. connecting part; 13. transverse frame; 1301. retardation groove; 14. driving shaft; 15. connecting frame; 1501. transverse groove; 16. traction rod; 17. locking shaft; 18. second limit member; 19. first guide member; 20. connecting member; 21. second guide member. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0027] See also Figure 1 to Figure 8 In an embodiment of the present invention, a built-in hidden connection structure is arranged between two groups of interconnected bridge bodies 1, wherein the bridge body 1 is provided with an inner lining frame 2 for supporting, including: a positioning mechanism, a retaining assembly, a differential assembly and a locking assembly.

[0028] The positioning mechanism is arranged between the two groups of bridge bodies 1, and the positioning mechanism comprises a transverse positioning component and a longitudinal positioning component. The transverse positioning component cooperates with the longitudinal positioning component to align the opposite ends of the two groups of bridge bodies 1; The transverse positioning assembly includes two groups of positioning shafts 3 rotatably mounted at one end of the bridge body 1 and a follower frame 11 arranged at one end of the other group of the bridge body 1, and the follower frame 11 is slidably connected with a second guide member 21 arranged on the bridge body 1; A group of first limiting members 12 are respectively disposed at both ends of the follower frame 11 . The first limiting members 12 cooperate with the positioning shaft group 3 to enable the opposite ends of the two groups of bridge bodies 1 to be laterally aligned.

[0029] Among them, each group of the positioning shaft group 3 is composed of two groups of clamping rollers, and the length of the clamping rollers is greater than the thickness of the first limit piece 12. When the connection action of the two groups of bridge frame bodies 1 is performed, the opposite ends of the two groups of bridge frame bodies 1 are in a fitted state. At the same time, the first limit piece 12 can move from one group of bridge frame bodies 1 toward the other group of bridge frame bodies 1 and be inserted between the two groups of clamping rollers to achieve the lateral positioning of the two-character bridge frame bodies 1. After positioning, the side portions of the two groups of bridge frame bodies 1 can be in a coplanar state, thereby ensuring that when the longitudinal positioning component is actuated, the longitudinal positioning of the two groups of bridge frame bodies 1 can be achieved.

[0030] The longitudinal positioning assembly includes a second stopper 18 slidably arranged through the bridge body 1, and the second stopper 18 cooperates with a positioning groove 101 arranged on another group of the bridge bodies 1 to enable the opposite ends of the two groups of the bridge bodies 1 to be longitudinally aligned; Two guiding portions 102 are formed at the opening of the positioning groove 101 , and the guiding portions 102 can guide the second limiting member 18 to enter the positioning groove 101 .

[0031] When the opposite ends of the two groups of bridge frame bodies 1 complete the lateral positioning, the side portions of the bridge frame bodies 1 are also in a coplanar state. At this time, the second limit member 18 can move toward the other group of bridge frame bodies 1, and when inserted into the positioning groove 101, the longitudinal positioning between the two groups of bridge frame bodies 1 is completed, and the lower end portions of the two groups of bridge frame bodies 1 are in a coplanar state. During the longitudinal positioning process, the first limit member 12 can move along the axial direction of the two groups of clamping rollers, and the length of the clamping roller is greater than the thickness of the first limit member 12, so that when performing longitudinal positioning, the two groups of clamping rollers can always maintain the limiting effect on the first limit member 12, and the side portions of the two groups of bridge frame bodies 1 remain in the same plane, thereby reducing the resistance of the second limit member 18 inserted into the positioning groove 101, and reducing the difficulty of operation during the alignment of the two groups of bridge frame bodies 1.

[0032] It should be noted that the first limit member 12 and the second limit member 18 are symmetrically provided with inclined surfaces at one end facing the clamping roller and the positioning groove 101, which makes the ends of the first limit member 12 and the second limit member 18 present an "eight"-shaped structure, so that the two can be more conveniently inserted into the clamping roller positioning groove 101.

[0033] It can be obviously concluded from the above description that the first limit member 12 inserted into the two groups of clamping rollers and the second limit member 18 inserted into the positioning groove 101 both have an anti-mistake effect of movement. Specifically, the two groups of clamping rollers cooperate with the inclined surface at the end of the first limit member 12, which can have greater tolerance when the first limit member 12 is inserted into the clamping roller. Similarly, the second limit member 18 and the positioning groove 101 also have the above effect, that is, when connecting the two groups of bridge frame bodies 1, it is not necessary to ensure that the two groups of bridge frame bodies 1 are completely aligned. Under a certain degree of offset, the first limit member 12 and the clamping roller, the second limit member 18 and the positioning groove 101 can be used to cooperate to more conveniently realize the alignment of the two groups of bridge frame bodies 1, thereby reducing the difficulty of operation during assembly, shortening the construction period, and improving the external aesthetics of the cable bridge installed.

[0034] See also Figure 5~Figure 6 The holding assembly is arranged on one of the groups of the bridge bodies 1, and a driving shaft 5 is arranged on the holding assembly. The driving shaft 5 cooperates with a driving groove arranged on the lateral positioning assembly, so that the lateral positioning assembly can be kept in a locked state after the lateral positioning assembly completes the positioning action; The holding assembly includes a turntable 4 rotatably mounted on the bridge body 1, the drive shaft 5 is arranged at an eccentric position of the turntable 4, and a protrusion is also arranged at the bottom of the turntable 4, and the protrusion is adapted to the energy storage structure arranged on the bridge body 1. In detail, the rotating shaft of the turntable 4 passes through the bridge body 1 and is connected to the driving part 403; The protruding member includes an arc protrusion 401 and an inclined protrusion 402 arranged at the bottom of the rotating disk 4, the center of the arc protrusion 401 is coaxial with the rotating axis of the rotating disk 4, and the distance between the inclined protrusion 402 and the rotating disk 4 gradually shortens in a direction away from the arc protrusion 401; The energy storage structure comprises a bracket 10 detachably mounted on the bridge body 1, a sliding member 7 is slidably mounted on the bracket 10, and an abutting shaft 6 abutting against the protruding member is provided on the sliding member 7; The energy storage structure further includes a transverse shaft 8 connected to the bracket 10 and passing through the sliding member 7, and a cylindrical spring 9 is sleeved on the transverse shaft 8, one end of the cylindrical spring 9 is connected to the bracket 10, and the other end is connected to the sliding member 7; In the initial state, the cylindrical spring 9 is in a compressed state, and the abutment shaft 6 is at one end of the arc protrusion 401 away from the inclined protrusion 402. In this state, the first limit member 12 and the second limit member 18 do not exceed the end of the bridge frame body 1. After the two groups of bridge frame bodies 1 are attached and there is a certain offset, the turntable 4 can be driven to rotate by controlling the rotation of the driving part 403. At this time, the protrusion and the driving shaft 5 will follow the turntable 4 to make a circular motion. At this time, the driving shaft 5 can cooperate with the driving groove to make the first limit member 12 move toward the positioning shaft group 3. In this process, under the action of the differential assembly, the second limit member 18 can remain stationary. After the first limit member 12 is inserted into the positioning shaft group 3, the second limit member 18 can be inserted into the positioning groove 101, and the lateral and longitudinal alignment between the two groups of bridge frame bodies 1 is completed in turn. At this time, the abutment shaft 6 will also be moved from the arc protrusion 40 1 moves into the inclined protrusion 402, and since the distance between the inclined protrusion 402 and the rotation axis of the turntable 4 is gradually shortened along its length direction, when the abutment shaft 6 abuts against the inclined protrusion 402 and moves, the abutment shaft 6 can move toward the rotation axis of the turntable 4, and the columnar spring 9 can release its elastic potential energy, and when the driving shaft 5 moves to the end of the driving groove, the driving groove can stop the driving shaft 5, and at the same time, the elastic force released by the columnar spring 9 can enable the driving shaft 5 to have the force to further move toward the end of the driving groove through the cooperation between the abutment shaft 6 and the inclined protrusion 402, so that the driving shaft 5 can have a certain restricted force in this state, and the turntable 4 has a certain locking effect, thereby ensuring the limiting property of the turntable 4 and the driving shaft 5, ensuring the stability of the first limiting member 12 and the second limiting member 18 after the alignment of the two groups of bridge frame bodies 1 is completed, and ensuring the stability of the two groups of bridge frame bodies 1 after alignment.

[0035] Through the above-mentioned arrangement, after the opposite ends of the two groups of bridge frame bodies 1 are aligned, the drive shaft 5 can abut against the end of the drive groove. At the same time, with the cooperation of the inclined protrusion 402 and the abutment shaft 6, the elastic force of the columnar spring 9 can drive the drive shaft 5 to have a tendency to move toward the end of the drive groove, so that the drive shaft 5 can be locked to a certain extent, thereby improving the stability of the first limit member 12 and the second limit member 18 after the opposite ends of the two groups of bridge frame bodies 1 are aligned, thereby ensuring the stability of the two groups of bridge frame bodies 1 after alignment.

[0036] See also Figure 5 , Figure 7 The driving groove is arranged on the follower frame 11, and includes an arc groove 1101 and a straight groove 1102; The circumferential radius of the arc groove 1101 is the same as the radius of the circular motion of the driving shaft 5 , and the length direction of the straight groove 1102 is perpendicular to the length direction of the second guide member 21 .

[0037] In the initial state, the driving shaft 5 is at one end of the straight groove 1102 away from the arc groove 1101, so that when the driving shaft 5 follows the turntable 4 to make a circular motion, the driving shaft 5 can cooperate with the straight groove 1102 to drive the follower frame 11 to move along the length direction of the second guide member 21. After the driving shaft 5 moves to the end of the straight groove 1102, the first limit member 12 has been inserted between the two sets of clamping rollers. Subsequently, when the driving shaft 5 continues to make a circular motion, the driving shaft 5 will move along the arc groove 1101. At this time, the follower frame 11 will be in a stationary state, thereby making the first limit member 12 stationary. When the turntable 4 rotates 180° , the driving shaft 5 moves to the end of the arc groove 1101 away from the straight groove 1102. At this time, the driving shaft 5 is locked to a certain extent, and the center of the end of the arc groove 1101 away from the straight groove 1102 is coaxial with the center of the driving shaft 5 and the center of the turntable 4. When the arc groove 1101 acts in the reverse direction on the driving shaft 5, the driving shaft 5 will not generate a circumferential force along the turntable 4, that is, the driving shaft 5 will not be subjected to the force that causes its reverse movement, and the stability of the driving shaft 5 is further improved to ensure the stability of the first limit member 12 when cooperating with the positioning shaft group 3, and to improve the lateral positioning effect and stability between the two groups of bridge frame bodies 1.

[0038] See also Figure 5 , Figure 8 , the differential assembly connects the longitudinal positioning assembly and the drive shaft 5, and when the transverse positioning assembly remains in a locked state, the drive shaft 5 can drive the longitudinal positioning assembly to move through the differential assembly; The differential assembly includes a transverse frame 13 slidably connected to the second guide member 21, and the transverse frame 13 is provided with a retardation groove 1301 along its length direction, and the drive shaft 5 can slide in the retardation groove 1301; The differential assembly further includes a connecting frame 15 connected to the second stopper 18 . The connecting frame 15 is provided with a transverse groove 1501 . The engaging shaft 14 provided at the end of the transverse frame 13 can slide in the transverse groove 1501 .

[0039] When the drive shaft 5 follows the rotation of the turntable 4 and makes a circular motion, the drive shaft 5 will cooperate with the straight groove 1102 and the transverse groove 1501 synchronously, so that the follower frame 11 and the transverse frame 13 can move. When the follower frame 11 moves, it can drive the first limit member 12 to be inserted into the positioning shaft group 3 to perform the transverse positioning action. When the transverse frame 13 moves, it can drive the embedded shaft 14 to move. At this time, the embedded shaft 14 can move along the length direction of the transverse groove 1501 until the drive shaft 5 moves into the arc groove 1101. When the moving frame 11 is stationary, the engaging shaft 14 just moves to the end of the transverse groove 1501. At this time, when the transverse moving frame 13 moves, the engaging shaft 14 can be used to abut against the end of the transverse groove 1501 to drive the second limit member 18 to move toward the positioning groove 101, thereby performing the longitudinal positioning action, thereby realizing the step-by-step action of the first limit member 12 and the second limit member 18 to perform the transverse positioning action and the longitudinal positioning action in turn, thereby preventing the two actions from being performed simultaneously to cause interference, resulting in the inability to achieve the purpose of linear alignment.

[0040] Furthermore, after the turntable 4 rotates 180°, the line connecting the drive shaft 5 and the axis of rotation of the turntable 4 is perpendicular to the transverse groove 1501. At this time, the drive shaft 5 can be subjected to balanced force and will not be affected by the force that causes its reverse movement, thereby improving the stability of the drive shaft 5 and further ensuring the longitudinal positioning effect and stability between the two sets of bridge frame bodies 1.

[0041] Through the above-mentioned arrangement, in the process of the turntable 4 driving the driving shaft 5 to make a circular motion, the first limit member 12 and the second limit member 18 can move in sequence, and respectively cooperate with the positioning shaft group 3 and the positioning groove 101, so as to respectively achieve the purpose of horizontal positioning and longitudinal positioning of the two groups of bridge frame bodies 1, thereby ensuring the alignment effect between the two groups of bridge frame bodies 1. At the same time, after the driving shaft 5 rotates to the end, it will not be affected by the force of reverse movement, thereby improving the stability of the driving shaft 5, thereby ensuring the alignment effect and stability between the two groups of bridge frame bodies 1.

[0042] See also Figure 3 , Figure 5 , Figure 7 , Figure 8 The locking assembly is connected to the longitudinal positioning assembly and cooperates with the transverse positioning assembly, so that the two groups of the bridge body 1 can be locked along their length direction when the longitudinal positioning assembly is activated. The locking assembly includes a first guide member 19 connected to the bridge body 1, a connecting member 20 is slidably mounted on the first guide member 19, a traction rod 16 is rotatably mounted on the connecting member 20, and one end of the traction rod 16 away from the connecting member 20 is rotatably connected to the connecting frame 15; The connecting member 20 is provided with a locking shaft 17 , and the locking shaft 17 can penetrate the connecting portion 1201 provided on the first limiting member 12 and the locking groove 103 provided on the bridge body 1 .

[0043] Since the opposite ends of the two groups of bridge frame bodies 1 are in a fitted state, when the first limit member 12 is inserted into the positioning shaft group 3, the connecting portion 1201 on the first limit member 12 is already in a coaxial state with the locking groove 103, and when the second limit member 18 moves toward the positioning groove 101, the connecting frame 15 will drive the connecting member 20 to move along the length direction of the first guide member 19 through the traction rod 16, so that the locking shaft 17 can pass through the connecting portion 1201 and the locking groove 103 in sequence. At this time, the two groups of bridge frame bodies 1 can be connected along their length direction, so that the two groups of bridge frame bodies 1 can be connected as one.

[0044] Based on the above principle, after the two groups of bridge frame bodies 1 complete the lateral positioning and longitudinal positioning, the locking shaft 17 can pass through the connecting part 1201 and the locking groove 103 in sequence, so that the two groups of bridge frame bodies 1 can be locked along their length direction, so that the two groups of bridge frame bodies 1 can be connected as one. Compared with the traditional bolt connection method, the operation is more convenient and the connection speed is improved.

[0045] As an embodiment of the present invention, a cable tray is also proposed, comprising the built-in hidden connection structure.

[0046] A method for assembling the cable tray as described above comprises the following steps: Step 1: fix the first set of bridge bodies 1 on the top of the building, and then fit another set of bridge bodies 1 to the opposite end of the first set of bridge bodies 1; Step 2: Control the holding component to move, so that the drive shaft 5 makes a circular motion. The drive shaft 5 cooperates with the drive slot to drive the transverse positioning component to move, so that the opposite ends of the two sets of bridge bodies 1 are aligned transversely. In this process, under the action of the differential component, the longitudinal positioning component is in a stationary state; Step 3: After the opposite ends of the two sets of bridge bodies 1 are aligned horizontally, the differential assembly is activated to activate the longitudinal positioning assembly, thereby aligning the opposite ends of the two sets of bridge bodies 1 longitudinally; Step 4: When the opposite ends of the two groups of bridge bodies 1 are longitudinally aligned, the locking assembly is activated to lock the two groups of bridge bodies 1 along their length direction.

[0047] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A built-in hidden connection structure, arranged between two sets of interconnected bridge bodies (1), characterized in that: include: A positioning mechanism is arranged between the two groups of bridge bodies (1), the positioning mechanism comprising a transverse positioning component and a longitudinal positioning component, the transverse positioning component cooperates with the longitudinal positioning component to align opposite ends of the two groups of bridge bodies (1); a retaining assembly, arranged on one of the bridge frames (1), the retaining assembly being provided with a driving shaft (5), the driving shaft (5) cooperating with a driving groove arranged on the lateral positioning assembly, and being capable of keeping the lateral positioning assembly in a locked state after the lateral positioning assembly has completed the positioning action; a differential assembly, connected to the longitudinal positioning assembly and the drive shaft (5), wherein when the transverse positioning assembly remains in a locked state, the drive shaft (5) can drive the longitudinal positioning assembly to move via the differential assembly; A locking assembly is connected to the longitudinal positioning assembly and cooperates with the transverse positioning assembly, and is capable of locking the two groups of bridge bodies (1) along their length direction when the longitudinal positioning assembly is actuated.

2. A built-in hidden connection structure according to claim 1, characterized in that: The transverse positioning assembly comprises two groups of positioning shaft groups (3) rotatably mounted on one end of the bridge frame body (1) and a follower frame (11) arranged at one end of the other group of the bridge frame body (1), and the follower frame (11) is slidably connected to a second guide member (21) arranged on the bridge frame body (1); A group of first limiting members (12) are respectively provided at both ends of the follower frame (11); the first limiting members (12) cooperate with the positioning shaft group (3) to enable the opposite ends of the two groups of bridge frame bodies (1) to be laterally aligned.

3. A built-in hidden connection structure according to claim 2, characterized in that: The longitudinal positioning assembly comprises a second limiting member (18) slidably arranged through the bridge frame body (1), the second limiting member (18) cooperating with a positioning groove (101) arranged on another group of the bridge frame bodies (1), so as to enable the opposite ends of the two groups of the bridge frame bodies (1) to be longitudinally aligned; Two guide portions (102) are formed at the opening of the positioning groove (101), and the guide portions (102) are capable of guiding the second limiting member (18) to enter the positioning groove (101).

4. The built-in hidden connection structure according to claim 1, characterized in that: The holding assembly comprises a turntable (4) rotatably mounted on the bridge body (1), the drive shaft (5) being arranged at an eccentric position of the turntable (4), and a protrusion being arranged at the bottom of the turntable (4), the protrusion being adapted to an energy storage structure arranged on the bridge body (1); The protruding member comprises a circular arc protrusion (401) and an inclined protrusion (402) arranged at the bottom of the rotating disk (4); the center of the circular arc protrusion (401) is coaxial with the rotating axis of the rotating disk (4); and the distance between the inclined protrusion (402) and the rotating disk (4) gradually shortens in a direction away from the circular arc protrusion (401).

5. The built-in hidden connection structure according to claim 4, characterized in that: The energy storage structure comprises a bracket (10) detachably mounted on the bridge frame body (1), a sliding member (7) being slidably mounted on the bracket (10), and an abutment shaft (6) abutting against the protruding member being provided on the sliding member (7); The energy storage structure further comprises a transverse axis (8) connected to the bracket (10) and penetrating the sliding member (7); a cylindrical spring (9) is sleeved on the transverse axis (8); one end of the cylindrical spring (9) is connected to the bracket (10) and the other end is connected to the sliding member (7).

6. The built-in hidden connection structure according to claim 3, characterized in that: The driving groove is arranged on the follower frame (11), and comprises an arc groove (1101) and a straight groove (1102); The circumferential radius of the circular arc groove (1101) is the same as the radius of the circular motion of the drive shaft (5), and the length direction of the straight groove (1102) is perpendicular to the length direction of the second guide member (21).

7. The built-in hidden connection structure according to claim 6, characterized in that: The differential assembly comprises a transverse frame (13) slidably connected to the second guide member (21), the transverse frame (13) being provided with a retardation groove (1301) along its length direction, and the drive shaft (5) being able to slide in the retardation groove (1301); The differential assembly further comprises a connecting frame (15) connected to the second limiting member (18), wherein the connecting frame (15) is provided with a transverse groove (1501), and an engaging shaft (14) arranged at the end of the transverse frame (13) is capable of sliding in the transverse groove (1501).

8. The built-in hidden connection structure according to claim 7, characterized in that: The locking assembly comprises a first guide member (19) connected to the bridge frame body (1), a connecting member (20) being slidably mounted on the first guide member (19), a traction rod (16) being rotatably mounted on the connecting member (20), and an end of the traction rod (16) away from the connecting member (20) being rotatably connected to the connecting frame (15); The connecting member (20) is provided with a locking shaft (17), and the locking shaft (17) is capable of penetrating a connecting portion (1201) provided on the first limiting member (12) and a locking groove (103) provided on the bridge body (1).

9. A cable tray, characterized in that: It comprises a built-in hidden connection structure as described in any one of claims 1 to 8.

10. A method for assembling a cable tray as claimed in claim 9, characterized in that: The following steps are involved: Step 1: fix the first set of bridge frame bodies (1) on the top of the building, and then fit another set of bridge frame bodies (1) to the opposite end of the first set of bridge frame bodies (1); Step 2: Control the holding component to move so that the drive shaft (5) moves in a circular motion. The drive shaft (5) cooperates with the drive slot to drive the transverse positioning component to move so that the opposite ends of the two sets of bridge bodies (1) are aligned transversely. During this process, the longitudinal positioning component is in a stationary state under the action of the differential component. Step 3: After the opposite ends of the two sets of bridge bodies (1) are aligned transversely, the differential assembly is activated to activate the longitudinal positioning assembly, thereby aligning the opposite ends of the two sets of bridge bodies (1) longitudinally; Step 4: When the opposite ends of the two sets of bridge bodies (1) are longitudinally aligned, the locking assembly is activated to lock the two sets of bridge bodies (1) along their length direction.

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