A built-in concealed connection structure, a cable tray, and an assembly method thereof.

Abstract

This invention relates to the field of cable tray technology, specifically to a built-in concealed connection structure, a cable tray, and its assembly method, comprising: a positioning mechanism, including a lateral positioning component and a longitudinal positioning component, the lateral positioning component cooperating with the longitudinal positioning component to align the opposite ends of two sets of cable tray bodies; a retaining component, disposed on one set of cable tray bodies, the retaining component having a drive shaft, the drive shaft cooperating with a drive groove disposed on the lateral positioning component, to keep the lateral positioning component locked after it has performed its positioning action; a differential component, connecting the longitudinal positioning component and the drive shaft, to drive the longitudinal positioning component to move through the differential component when the lateral positioning component is locked; and a locking component, connecting the longitudinal positioning component and cooperating with the lateral positioning component, to lock the two sets of cable tray bodies along their length direction when the longitudinal positioning component moves, thereby facilitating installation.

Description

Technical Field

[0001] This invention relates to the field of cable tray technology, specifically to a built-in concealed connection structure, a cable tray, and an assembly method thereof. Background Technology

[0002] Cable trays consist of supports, brackets, and installation accessories. Cable trays inside buildings can be installed independently or attached to various building (structure) and pipe rack supports. They mainly serve to support cables and other wire harnesses, and have good protective effect and aesthetics.

[0003] 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 two cable trays together. Although this method is simple to operate, it involves a lot of work. In addition, during the installation process, in order to improve the aesthetics and connection stability, the ends of the two sets of cable trays to be connected need to be completely aligned, which greatly increases the difficulty of installation, resulting in slow construction speed and long construction period for cable trays. Summary of the Invention

[0004] The purpose of this invention is to provide a built-in concealed connection structure, a cable tray, and an assembly method thereof to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A built-in concealed connection structure is disposed between two sets of interconnected cable tray bodies, comprising:

[0007] A positioning mechanism is provided between the two sets of cable tray bodies. The positioning mechanism includes a lateral positioning component and a longitudinal positioning component. The lateral positioning component and the longitudinal positioning component cooperate to align the opposite ends of the two sets of cable tray bodies.

[0008] A retaining component is provided on one of the cable tray bodies. The retaining component is provided with a drive shaft. The drive shaft cooperates with a drive groove provided on the lateral positioning component, so that the lateral positioning component can be kept in a locked state after the lateral positioning component has performed a positioning action.

[0009] A differential assembly connects the longitudinal positioning assembly and the drive shaft. When the lateral positioning assembly remains locked, the drive shaft can drive the longitudinal positioning assembly to move through the differential assembly.

[0010] The locking assembly connects to the longitudinal positioning assembly and cooperates with the transverse positioning assembly, enabling the two sets of cable tray bodies to lock along their length direction when the longitudinal positioning assembly is activated.

[0011] As a further embodiment of the present invention: the lateral positioning assembly includes two sets of positioning shafts rotatably mounted on one end of the cable tray body and a follower frame disposed on another set of the cable tray body, the follower frame being slidably connected to a second guide member disposed on the cable tray body;

[0012] Each end of the follower frame is provided with a set of first limiting members. The first limiting members cooperate with the positioning shaft group to enable the opposite ends of the two sets of bridge frame bodies to be laterally aligned.

[0013] As a further embodiment of the present invention: the longitudinal positioning component includes a second limiting member that slides through the cable tray body, the second limiting member cooperating with a positioning groove provided on another set of cable tray bodies, which enables the opposite ends of the two sets of cable tray bodies to be longitudinally aligned.

[0014] Two guide portions are formed at the opening of the positioning groove, and the guide portions can guide the second limiting member into the positioning groove.

[0015] As a further embodiment of the present invention: the retaining component includes a turntable rotatably mounted on the cable tray body, the drive shaft is disposed at an eccentric position on the turntable, and a protrusion is also provided at the bottom of the turntable, the protrusion being adapted to an energy storage structure disposed on the cable tray body;

[0016] The protrusion includes an arc-shaped protrusion and an inclined protrusion disposed at the bottom of the turntable. The center of the arc-shaped protrusion is coaxial with the rotation axis of the turntable, and the distance between the inclined protrusion and the turntable gradually decreases along the direction away from the arc-shaped protrusion.

[0017] As a further embodiment of the present invention: the energy storage structure includes a bracket detachably mounted on the bridge body, a sliding member slidably mounted on the bracket, and an abutment shaft abutting against the protrusion on the sliding member;

[0018] The energy storage structure also includes a horizontal axis connected to the bracket and passing through the sliding member. A cylindrical spring is sleeved on the horizontal axis, with one end of the cylindrical spring connected to the bracket and the other end connected to the sliding member.

[0019] As a further embodiment of the present invention: the driving groove is disposed on the follower frame, including an arc groove and a straight groove;

[0020] The circumferential radius of the arc groove is the same as the radius of the circular motion of the drive shaft, and the length direction of the straight groove is perpendicular to the length direction of the second guide member.

[0021] As a further embodiment of the present invention: the differential assembly includes a transverse frame slidably connected to the second guide member, the transverse frame being provided with a hysteresis groove along its length direction, and the drive shaft being able to slide within the hysteresis groove;

[0022] The differential assembly also includes a connecting frame connected to the second limiting member, the connecting frame being provided with a transverse groove, and the fitting shaft provided at the end of the transverse frame being able to slide within the transverse groove.

[0023] As a further embodiment of the present invention: the locking assembly includes a first guide member connected to the cable tray body, a connector is slidably mounted on the first guide member, a traction rod is rotatably mounted on the connector, and the end of the traction rod away from the connector is rotatably connected to the connecting frame.

[0024] The connector is provided with a locking shaft, which can pass through the connecting part provided on the first limiting member and the locking groove provided on the cable tray body.

[0025] A cable tray includes the aforementioned built-in concealed connection structure.

[0026] A method for assembling the cable tray as described includes the following steps:

[0027] Step 1: Fix the first set of cable tray bodies to the top of the building, and then attach the other set of cable tray bodies to the opposite end of the first set of cable tray bodies;

[0028] Step 2: Control the movement of the holding component to make the drive shaft move in a circular motion. The drive shaft cooperates with the drive groove to drive the lateral positioning component to move, so that the opposite ends of the two sets of cable tray bodies are laterally aligned. During this process, the longitudinal positioning component is stationary under the action of the differential component.

[0029] Step 3: When the two sets of cable tray bodies are laterally aligned at opposite ends, the differential component is activated, causing the longitudinal positioning component to activate, thereby aligning the two sets of cable tray bodies longitudinally at opposite ends.

[0030] Step 4: When the two sets of cable tray bodies are longitudinally aligned at opposite ends, the locking assembly is activated, thereby locking the two sets of cable tray bodies along their length.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] By setting up a positioning mechanism, when connecting two sets of cable tray bodies, it is not necessary to ensure that the two sets of cable tray bodies are completely aligned. With a certain degree of offset, the alignment of the two sets of cable tray bodies can be achieved more conveniently by using the cooperation of the first limiting member and the clamping roller, and the second limiting member and the positioning groove. This reduces the difficulty of assembly, shortens the construction cycle, and improves the external aesthetics of the cable trays installed.

[0033] By setting up retaining components, after the opposite ends of the two sets of cable tray bodies are aligned, the drive shaft can abut against the end of the drive groove. At the same time, with the cooperation of the inclined protrusion and the abutment shaft, the elastic force of the columnar spring can drive the drive shaft to tend to move towards the end of the drive groove, so that the drive shaft can be locked to a certain extent. This improves the stability of the first and second limiting components after the opposite ends of the two sets of cable tray bodies are aligned, and ensures the stability of the two sets of cable tray bodies after alignment.

[0034] By setting up the drive groove and differential components, the first limiter and the second limiter can move sequentially during the process of the turntable driving the drive shaft to make a circular motion, and cooperate with the positioning shaft group and the positioning groove respectively, so as to achieve the purpose of longitudinal positioning of the two sets of cable tray bodies in the transverse positioning machine, ensuring the alignment effect between the two sets of cable tray bodies. At the same time, after the drive shaft rotates to the end, it will not be subjected to the reverse motion force, thus improving the stability of the drive shaft and ensuring the alignment effect and stability between the two sets of cable tray bodies.

[0035] The locking assembly allows the locking shaft to pass through the connecting part and locking groove sequentially after the two cable tray bodies are positioned laterally and longitudinally. This locks the two cable tray bodies along their length, allowing them to be connected as one unit. Compared to the traditional bolt connection method, this method is more convenient and improves the connection speed. Attached Figure Description

[0036] Figure 1 This is a structural schematic diagram of one embodiment of a cable tray.

[0037] Figure 2 This is a schematic diagram of the structure of a cable tray after the inner liner 2 has been removed in one embodiment.

[0038] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle.

[0039] Figure 4 for Figure 2 Enlarged view of the structure at point B.

[0040] Figure 5 This is a schematic diagram of one embodiment of the built-in hidden connection structure.

[0041] Figure 6 An exploded view of the structure of the retaining component in one embodiment of the built-in hidden connection structure.

[0042] Figure 7 This is a schematic diagram of the drive shaft and drive slot in one embodiment of the built-in hidden connection structure.

[0043] Figure 8 An exploded view of the differential component in one embodiment of the built-in hidden connection structure.

[0044] In the diagram: 1. Cable tray body; 101. Positioning groove; 102. Guide part; 103. Locking groove; 2. Inner liner frame; 3. Positioning shaft; 4. Turntable; 401. Arc protrusion; 402. Inclined protrusion; 403. Drive part; 5. Drive shaft; 6. Abutment shaft; 7. Sliding part; 8. Horizontal shaft; 9. Cylindrical spring; 10. Bracket; 11. Follower frame; 1101. Arc groove; 1102. Flat groove; 12. First limiting member; 1201. Connecting part; 13. Horizontal moving frame; 1301. Hysteresis groove; 14. Drive shaft; 15. Connecting frame; 1501. Horizontal groove; 16. Traction rod; 17. Locking shaft; 18. Second limiting member; 19. First guide member; 20. Connecting member; 21. Second guide member. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0047] Please see Figures 1-8 In this embodiment of the invention, a built-in hidden connection structure is provided between two sets of interconnected cable tray bodies 1, wherein the cable tray body 1 is provided with an inner liner 2 for support, including: a positioning mechanism, a retaining component, a differential component and a locking component.

[0048] The positioning mechanism is disposed between the two sets of cable tray bodies 1. The positioning mechanism includes a lateral positioning component and a longitudinal positioning component. The lateral positioning component and the longitudinal positioning component cooperate to align the opposite ends of the two sets of cable tray bodies 1.

[0049] The lateral positioning assembly includes two sets of positioning shafts 3 rotatably mounted on one end of the cable tray body 1 and a follower frame 11 disposed on one end of another set of the cable tray body 1. The follower frame 11 is slidably connected to a second guide member 21 disposed on the cable tray body 1.

[0050] Each end of the follower frame 11 is provided with a set of first limiting members 12. The first limiting members 12 cooperate with the positioning shaft group 3 to make the opposite ends of the two sets of bridge body 1 laterally aligned.

[0051] Each of the positioning shaft groups 3 consists of two sets of clamping rollers, and the length of the clamping rollers is greater than the thickness of the first limiting member 12. When performing the connection action of the two sets of cable tray bodies 1, the opposite ends of the two sets of cable tray bodies 1 are in a close-fitting state. At the same time, the first limiting member 12 can move from one set of cable tray bodies 1 toward the other set of cable tray bodies 1 and insert between the two sets of clamping rollers to achieve lateral positioning of the two-shaped cable tray bodies 1. After positioning, the sides of the two sets of cable tray bodies 1 can be in a coplanar state, thereby ensuring that the longitudinal positioning of the two sets of cable tray bodies 1 can be achieved when the longitudinal positioning component is in action.

[0052] The longitudinal positioning component includes a second limiting member 18 that slides through the cable tray body 1. The second limiting member 18 cooperates with a positioning groove 101 provided on another set of cable tray bodies 1, which enables the opposite ends of the two sets of cable tray bodies 1 to be longitudinally aligned.

[0053] Two guide portions 102 are formed at the opening of the positioning groove 101, and the guide portions 102 can guide the second limiting member 18 into the positioning groove 101.

[0054] After the two sets of cable tray bodies 1 are laterally positioned at opposite ends, the sides of the cable tray bodies 1 are also in a coplanar state. At this time, the second limiting member 18 can move toward the other set of cable tray bodies 1 and, when inserted into the positioning groove 101, make the two sets of cable tray bodies 1 longitudinally positioned, so that the lower ends of the two sets of cable tray bodies 1 are in a coplanar state. During the longitudinal positioning process, the first limiting member 12 can move along the axial direction of the two sets of clamping rollers. The length of the clamping rollers is greater than the thickness of the first limiting member 12, so that when performing longitudinal positioning, the two sets of clamping rollers can always maintain the limiting effect on the first limiting member 12, so that the sides of the two sets of cable tray bodies 1 remain coplanar, thereby reducing the resistance of the second limiting member 18 when inserted into the positioning groove 101 and reducing the operational difficulty in the alignment process of the two sets of cable tray bodies 1.

[0055] It should be noted that the first limiting member 12 and the second limiting member 18 are symmetrically provided with inclined surfaces at the ends facing the clamping roller and the positioning groove 101. This makes the ends of the first limiting member 12 and the second limiting member 18 have an "eight"-shaped structure, so that they can be inserted into the positioning groove 101 of the clamping roller machine more conveniently.

[0056] As can be clearly seen from the above description, the insertion of the first limiting member 12 into the two sets of clamping rollers and the insertion of the second limiting member 18 into the positioning groove 101 both have the effect of preventing misalignment. Specifically, the inclined surface of the two sets of clamping rollers and the end of the first limiting member 12 cooperates to provide greater fault tolerance when the first limiting member 12 is inserted into the clamping rollers. Similarly, the second limiting member 18 and the positioning groove 101 also have the above effect. That is, when connecting the two sets of cable tray bodies 1, it is not necessary to ensure that the two sets of cable tray bodies 1 are completely aligned. With a certain degree of offset, the alignment of the two sets of cable tray bodies 1 can be achieved more conveniently by utilizing the cooperation of the first limiting member 12 and the clamping rollers and the second limiting member 18 and the positioning groove 101. This reduces the difficulty of assembly, shortens the construction cycle, and improves the external aesthetics of the cable tray.

[0057] Please see Figures 5-6 The retaining component is disposed on one of the cable tray bodies 1. The retaining component is provided with a drive shaft 5. The drive shaft 5 cooperates with the drive groove disposed on the transverse positioning component, so that the transverse positioning component can be kept in a locked state after the transverse positioning component has performed the positioning action.

[0058] The retaining assembly includes a turntable 4 rotatably mounted on the cable tray body 1, a drive shaft 5 disposed at an eccentric position on the turntable 4, and a protrusion disposed at the bottom of the turntable 4. The protrusion is adapted to the energy storage structure disposed on the cable tray body 1. Specifically, the rotating shaft of the turntable 4 passes through the cable tray body 1 and is connected to a drive unit 403.

[0059] The protrusion includes an arc protrusion 401 and an inclined protrusion 402 disposed at the bottom of the turntable 4. The center of the arc protrusion 401 is coaxial with the rotation axis of the turntable 4, and the distance between the inclined protrusion 402 and the turntable 4 gradually shortens along the direction away from the arc protrusion 401.

[0060] The energy storage structure includes a bracket 10 that is detachably mounted on the bridge body 1. A sliding member 7 is slidably mounted on the bracket 10. An abutment shaft 6 that abuts against the protrusion is provided on the sliding member 7.

[0061] The energy storage structure also includes a horizontal shaft 8 connected to the support 10 and passing through the sliding member 7. A cylindrical spring 9 is sleeved on the horizontal shaft 8. One end of the cylindrical spring 9 is connected to the support 10 and the other end is connected to the sliding member 7.

[0062] In the initial state, the cylindrical spring 9 is compressed, and the abutment shaft 6 is located at the end of the arc protrusion 401 away from the inclined protrusion 402. In this state, neither the first limiting member 12 nor the second limiting member 18 extends beyond the end of the cable tray body 1. After the two sets of cable tray bodies 1 are attached and have a certain offset, the drive unit 403 is rotated to drive the turntable 4 to rotate. At this time, the protrusion and the drive shaft 5 will follow the turntable 4 to make a circular motion. At this time, the drive shaft 5 can cooperate with the drive groove, so that the first limiting member 12 moves toward the positioning shaft group 3. During this process, under the action of the differential component, the second limiting member 18 can remain stationary. After the first limiting member 12 is inserted into the positioning shaft group 3, the second limiting member 18 can be inserted into the positioning groove 101, thus completing the lateral and longitudinal alignment between the two sets of cable tray bodies 1. At this time, the abutment shaft 6 will also move from the arc protrusion 401 to the end of the inclined protrusion 402. 1. The drive shaft 5 moves into the inclined protrusion 402. As the distance between the inclined protrusion 402 and the axis of rotation of the turntable 4 gradually shortens along its length, when the abutment shaft 6 abuts against the inclined protrusion 402 and moves, the abutment shaft 6 can move toward the axis of rotation of the turntable 4, so that the column spring 9 can release elastic potential energy. When the drive shaft 5 moves to the end of the drive groove, the drive groove can stop the drive shaft 5. At the same time, the elastic force released by the column spring 9, through the cooperation of the abutment shaft 6 and the inclined protrusion 402, can make the drive shaft 5 have a force to move further toward the end of the drive groove, so that the drive shaft 5 can have a certain restraining force in this state, and the turntable 4 will produce a certain locking effect, thus ensuring the limiting of the turntable 4 and the drive shaft 5, ensuring the stability of the first limiting member 12 and the second limiting member 18 after the alignment of the two sets of cable tray bodies 1 is completed, and ensuring the stability of the two sets of cable tray bodies 1 after alignment.

[0063] With the above settings, after the opposite ends of the two sets of cable tray 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 column spring 9 can drive the drive shaft 5 to tend to move towards the end of the drive groove, so that the drive shaft 5 can be locked to a certain extent. This improves the stability of the first limiting member 12 and the second limiting member 18 after the opposite ends of the two sets of cable tray bodies 1 are aligned, and ensures the stability of the two sets of cable tray bodies 1 after alignment.

[0064] Please see Figure 5 , Figure 7 The drive groove is disposed on the follower frame 11 and includes an arc groove 1101 and a straight groove 1102;

[0065] The circumferential radius of the 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.

[0066] In the initial state, the drive shaft 5 is located at the end of the straight groove 1102 away from the arc groove 1101. This allows the drive shaft 5 to cooperate with the straight groove 1102 and drive the follower frame 11 to move along the length of the second guide member 21 when the drive shaft 5 follows the turntable 4 in a circular motion. After the drive shaft 5 reaches the end of the straight groove 1102, the first limiting member 12 has been inserted between the two sets of clamping rollers. Subsequently, as the drive shaft 5 continues to make a circular motion, it will move along the arc groove 1101. At this time, the follower frame 11 will be stationary, thus keeping the first limiting member 12 stationary. When the turntable 4 rotates 180°... When the drive shaft 5 moves to the end of the arc groove 1101 away from the straight groove 1102, the drive shaft 5 is locked to a certain extent. The center of the end of the arc groove 1101 away from the straight groove 1102 is coaxial with the center of the drive shaft 5 and the center of the turntable 4. When the arc groove 1101 acts in the opposite direction on the drive shaft 5, it will not cause the drive shaft 5 to generate a circumferential force along the turntable 4. That is, the drive shaft 5 will not be subjected to a force that causes it to move in the opposite direction, thereby further improving the stability of the drive shaft 5. This ensures the stability of the first limiting member 12 when it is engaged with the positioning shaft group 3, and improves the lateral positioning effect and stability between the two sets of bridge body 1.

[0067] Please see Figure 5 , Figure 8 The differential component connects the longitudinal positioning component and the drive shaft 5. When the lateral positioning component is locked, the drive shaft 5 can drive the longitudinal positioning component to move through the differential component.

[0068] The differential assembly includes a transverse frame 13 slidably connected to the second guide member 21. The transverse frame 13 is provided with a hysteresis groove 1301 along its length direction, and the drive shaft 5 is able to slide within the hysteresis groove 1301.

[0069] The differential assembly also includes a connecting frame 15 connected to the second limiting member 18. The connecting frame 15 is provided with a transverse groove 1501, and the fitting shaft 14 provided at the end of the transverse frame 13 can slide within the transverse groove 1501.

[0070] When the drive shaft 5 rotates in a circular motion following the turntable 4, it synchronously engages with the straight groove 1102 and the transverse groove 1501, enabling the follower frame 11 and the transverse frame 13 to move. When the follower frame 11 moves, it drives the first limiting member 12 to insert into the positioning shaft assembly 3 to perform a transverse positioning action. When the transverse frame 13 moves, it drives the fitting shaft 14 to move. At this time, the fitting 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 follower frame 11 is stationary, the fitting shaft 14 just moves to the end of the transverse groove 1501. At this time, when the transverse frame 13 moves, the second limiting member 18 can be driven to move toward the positioning groove 101 by the abutment of the fitting shaft 14 and the end of the transverse groove 1501, thereby performing the longitudinal positioning action. This realizes the step-by-step action of the first limiting member 12 and the second limiting member 18, so as to perform the transverse positioning action and the longitudinal positioning action in sequence, preventing the two actions from interfering with each other and causing the inability to be aligned in a straight line.

[0071] Furthermore, after the turntable 4 rotates 180°, the line connecting the drive shaft 5 and the shaft of the turntable 4 is perpendicular to the horizontal groove 1501. At this time, the drive shaft 5 can be balanced by force and will not be subjected to force that would cause it to move in the opposite direction, thereby improving the stability of the drive shaft 5 and further ensuring the longitudinal positioning effect and stability between the two sets of bridge body 1.

[0072] With the above settings, during the circular motion of the drive shaft 5 driven by the turntable 4, the first limiting member 12 and the second limiting member 18 can move sequentially and cooperate with the positioning shaft group 3 and the positioning groove 101 respectively, so as to achieve the purpose of longitudinal positioning of the two sets of cable tray bodies 1 in the transverse positioning machine, ensuring the alignment effect between the two sets of cable tray bodies 1. At the same time, after the drive shaft 5 rotates to the end, it will not be subjected to the reverse motion force, thus improving the stability of the drive shaft 5 and ensuring the alignment effect and stability between the two sets of cable tray bodies 1.

[0073] Please see Figure 3 , Figure 5 , Figure 7 , Figure 8The locking assembly connects to the longitudinal positioning assembly and cooperates with the transverse positioning assembly, enabling the two sets of cable tray bodies 1 to lock along their length direction when the longitudinal positioning assembly is activated.

[0074] The locking assembly includes a first guide member 19 connected to the cable tray body 1, a connector 20 slidably mounted on the first guide member 19, a traction rod 16 rotatably mounted on the connector 20, and one end of the traction rod 16 away from the connector 20 being rotatably connected to the connecting frame 15.

[0075] The connector 20 is provided with a locking shaft 17, which can pass through the connecting part 1201 provided on the first limiting member 12 and the locking groove 103 provided on the cable tray body 1.

[0076] Since the opposite ends of the two sets of cable tray bodies 1 are in a close fit, when the first limiting member 12 is inserted into the positioning shaft group 3, the connecting part 1201 on the first limiting member 12 is already in a coaxial state with the locking groove 103. When the second limiting 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 part 1201 and the locking groove 103 in sequence. At this time, the connection of the two sets of cable tray bodies 1 along their length direction can be realized, so that the two sets of cable tray bodies 1 can be connected into one.

[0077] Based on the above principle, after the two sets of cable tray bodies 1 have completed the lateral and longitudinal positioning, the locking shaft 17 can pass through the connecting part 1201 and the locking groove 103 in sequence, thereby locking the two sets of cable tray bodies 1 along their length direction and connecting the two sets of cable tray bodies 1 into one unit. Compared with the traditional bolt connection method, the operation is more convenient and the connection speed is improved.

[0078] As an embodiment of the present invention, a cable tray is also proposed, including the aforementioned built-in hidden connection structure.

[0079] A method for assembling the cable tray as described includes the following steps:

[0080] Step 1: Fix the first set of cable tray bodies 1 to the top of the building, and then attach the other set of cable tray bodies 1 to the opposite end of the first set of cable tray bodies 1.

[0081] Step 2: Control the movement of the holding component to make the drive shaft 5 perform a circular motion. The drive shaft 5 cooperates with the drive groove to drive the lateral positioning component to move, so that the opposite ends of the two sets of cable tray bodies 1 are laterally aligned. During this process, the longitudinal positioning component is stationary under the action of the differential component.

[0082] Step 3: When the two sets of cable tray bodies 1 are laterally aligned at opposite ends, the differential component is activated, causing the longitudinal positioning component to activate, thereby aligning the two sets of cable tray bodies 1 longitudinally at opposite ends.

[0083] Step 4: When the two sets of cable tray bodies 1 are longitudinally aligned at opposite ends, the locking assembly is activated, thereby locking the two sets of cable tray bodies 1 along their length direction.

[0084] It will be apparent to those skilled in the art that the present 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 its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0085] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A built-in concealed connection structure, disposed between two interconnected cable tray bodies (1), characterized in that, include: A positioning mechanism is provided between the two sets of cable tray bodies (1). The positioning mechanism includes a lateral positioning component and a longitudinal positioning component. The lateral positioning component and the longitudinal positioning component cooperate to align the opposite ends of the two sets of cable tray bodies (1). A retaining component is provided on one of the cable tray bodies (1). The retaining component is provided with a drive shaft (5). The drive shaft (5) cooperates with the drive groove provided on the transverse positioning component, so that the transverse positioning component can be kept locked after the transverse positioning component has completed the positioning action. A differential assembly connects the longitudinal positioning assembly and the drive shaft (5). When the lateral positioning assembly is locked, the drive shaft (5) can drive the longitudinal positioning assembly to move through the differential assembly. The locking assembly connects to the longitudinal positioning assembly and cooperates with the transverse positioning assembly, enabling the two sets of the cable tray bodies (1) to be locked along their length direction when the longitudinal positioning assembly is activated. The lateral positioning assembly includes two sets of positioning shafts (3) rotatably mounted on one end of the cable tray body (1) and a follower frame (11) disposed on one end of the other set of the cable tray body (1). The follower frame (11) is slidably connected to a second guide member (21) disposed on the cable tray body (1). Each end of the follower frame (11) is provided with a set of first limiting members (12). The first limiting members (12) cooperate with the positioning shaft group (3) to make the opposite ends of the two sets of bridge body (1) laterally aligned. The longitudinal positioning component includes a second limiting member (18) that slides through the cable tray body (1). The second limiting member (18) cooperates with a positioning groove (101) provided on another set of cable tray bodies (1) to enable the opposite ends of the two sets of cable tray bodies (1) to be longitudinally aligned. The opening of the positioning groove (101) has two guide portions (102) that can guide the second limiting member (18) into the positioning groove (101); The retaining assembly includes a turntable (4) rotatably mounted on the cable tray body (1), a drive shaft (5) located at an eccentric position on the turntable (4), and a protrusion provided at the bottom of the turntable (4), the protrusion being adapted to an energy storage structure provided on the cable tray body (1). The protrusion includes an arc protrusion (401) and an inclined protrusion (402) disposed at the bottom of the turntable (4). The center of the arc protrusion (401) is coaxial with the rotation axis of the turntable (4). The distance between the inclined protrusion (402) and the turntable (4) gradually shortens along the direction away from the arc protrusion (401). The drive groove is disposed 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 drive shaft (5), and the length direction of the straight groove (1102) is perpendicular to the length direction of the second guide (21). The differential assembly includes a transverse frame (13) slidably connected to the second guide (21), the transverse frame (13) having a hysteresis groove (1301) along its length, and the drive shaft (5) being able to slide within the hysteresis groove (1301); The differential assembly also includes a connecting frame (15) connected to the second limiting member (18), the connecting frame (15) being provided with a transverse groove (1501), and the fitting shaft (14) provided at the end of the transverse frame (13) being able to slide within the transverse groove (1501).

2. The built-in hidden connection structure according to claim 1, characterized in that, The energy storage structure includes a bracket (10) that is detachably mounted on the bridge body (1), a sliding member (7) is slidably mounted on the bracket (10), and an abutment shaft (6) that abuts against the protrusion is provided on the sliding member (7). The energy storage structure also includes a horizontal shaft (8) connected to the bracket (10) and passing through the sliding member (7). A cylindrical spring (9) is sleeved on the horizontal 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).

3. The built-in hidden connection structure according to claim 1, characterized in that, The locking assembly includes a first guide (19) connected to the cable tray body (1), a connector (20) is slidably mounted on the first guide (19), a traction rod (16) is rotatably mounted on the connector (20), and one end of the traction rod (16) away from the connector (20) is rotatably connected to the connecting frame (15). The connector (20) is provided with a locking shaft (17), which can pass through the connecting part (1201) provided on the first limiting member (12) and the locking groove (103) provided on the cable tray body (1).

4. A cable tray, characterized in that, Includes the built-in hidden connection structure as described in any one of claims 1 to 3.

5. A method for assembling a cable tray as described in claim 4, characterized in that, Includes the following steps: Step 1: Fix the first set of cable tray bodies (1) to the top of the building, and then attach the other set of cable tray bodies (1) to the opposite end of the first set of cable tray bodies (1); Step 2: Control the movement of the holding component to make the drive shaft (5) perform a circular motion. The drive shaft (5) cooperates with the drive groove to drive the lateral positioning component to move, so that the opposite ends of the two sets of bridge bodies (1) are laterally aligned. During this process, the longitudinal positioning component is stationary under the action of the differential component. Step 3: When the two sets of cable tray bodies (1) are laterally aligned at opposite ends, the differential component is activated, causing the longitudinal positioning component to activate, thereby aligning the two sets of cable tray bodies (1) longitudinally at opposite ends. Step 4: When the two sets of cable tray bodies (1) are longitudinally aligned at opposite ends, the locking assembly is activated, thereby locking the two sets of cable tray bodies (1) along their length direction.

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