Modularized rapid installation guide rail pair

Abstract

The invention provides a modularized rapid installation guide rail pair which comprises a guide rail and a sliding block, a positioning mechanism is arranged in a notch of the guide rail, and the positioning mechanism comprises an elastic clamping unit used for fixing a positioning head and a driving unit used for driving the elastic clamping unit. The notches are formed in the guide rails, the positioning mechanisms are integrated, rapid splicing between the two guide rails is achieved, the guide rails can be rapidly spliced at any length according to actual requirements through the design, and using flexibility and adaptability are greatly improved. In the splicing process, tedious calibration operation does not need to be carried out, complex auxiliary tools and installation steps do not need to be relied on either, and the labor cost and the time cost are reduced. Besides, a pre-limiting unit and a locking unit are introduced, so that a firm limiting guarantee is provided for the driving shaft of the positioning mechanism, and the stability and the safety of the spliced guide rail pair in the running process are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of guide rails, and in particular to a modular quick-installation guide rail pair. Background Art

[0002] As a key component in mechanical transmission systems, guide rails are widely used in various industrial equipment to achieve precise and stable linear motion. It usually consists of two parts: a guide rail and a slider. The guide rail provides a track for the slider to move, while the slider slides along the guide rail to achieve the required linear displacement.

[0003] Traditional guide rail pairs usually adopt a fixed structure, which means that in actual applications, when it is necessary to extend the length of the guide rail or combine multiple sections of the guide rail, it is often impossible to directly achieve quick connection due to the lack of a preset splicing mechanism. Users usually need to use complex auxiliary tools, such as special docking devices, positioning fixtures, etc., and perform tedious installation steps, including precise measurement, adjustment and alignment, and fixing bolts, to complete the splicing of the guide rails. This limitation not only greatly increases the workload of installation and adjustment, consumes more time and human resources, but also easily introduces installation errors, affecting the running accuracy and stability of the guide rail pair. In addition, the fixed structure limits the applicability of the guide rail pair in a variety of scenarios. For example, in application environments with limited space, complex layout, or frequent changes, it is difficult to meet the needs of rapid deployment, flexible adjustment, and efficient operation. This design is also not conducive to later maintenance and upgrades, because any changes may require repeating the above-mentioned complex installation process. Summary of the invention

[0004] The purpose of the present invention is to provide a modular quick-install guide rail pair, which can solve the problem that traditional guide rail pairs usually adopt a fixed structure, which leads to the problem that in actual applications, when it is necessary to extend the length of the guide rail or combine multiple sections of guide rails, it is often impossible to directly achieve quick connection due to the lack of a preset splicing mechanism.

[0005] The present invention provides a modular quick-install guide rail pair, comprising a guide rail and a slider, the slider being slidably connected to the guide rail, a side wall of the guide rail being provided with a slot for installation near the lower end surface, a blocking plate being fixedly arranged at the center of the slot, and two gaps of certain width are formed between the blocking plate and the left and right side walls of the slot, a groove being arranged on the top surface of the guide rail, two positioning heads being fixedly arranged on the other side wall of the guide rail, each positioning head being matched with a corresponding gap, a positioning mechanism being arranged inside the slot of the guide rail, the positioning mechanism comprising an elastic clamping unit for fixing the positioning head and a driving unit for driving the elastic clamping unit.

[0006] Preferably, the elastic clamping unit comprises a spring, a movable block, two pairs of pins, two baffles and two linkage blocks, one end of the spring is fixedly arranged on the inner side of the blocking plate, a groove body for placing the spring is opened in the middle part of the movable block, the spring is located inside the groove body, and the other end of the spring is fixedly connected to the inner wall of the groove body, the two pairs of the pins are respectively fixedly arranged on the top of the left and right sides of the movable block, each pair of the pins includes two pins arranged in an oblique line, the two baffles are fixedly arranged on the top of the notch, and the two baffles maintain a certain gap with the bottom of the notch, two sliding grooves are opened on the inner side of the blocking plate, and a sliding groove is also opened on the left side of each of the baffles, the two linkage blocks are respectively slidably connected with the blocking plate and the sliding grooves of the two baffles, and each linkage block is opened with an inclined hole matching each pair of pins, and each pair of pins movably passes through the corresponding inclined hole.

[0007] Preferably, the driving unit includes a rotating shaft, an eccentric wheel and a handle, the rotating shaft is rotatably connected to the top and bottom of the slot respectively, and the top end of the rotating shaft extends to the groove on the top surface of the guide rail, the eccentric wheel is fixed on the rotating shaft, and the eccentric wheel is located on the right side of the movable block, and the handle is fixed on the top end of the rotating shaft.

[0008] Preferably, the handle is also provided with a pre-limiting unit for initially limiting the rotating shaft.

[0009] Preferably, the pre-limiting unit includes a telescopic rod, a first magnet and a second magnet, one end of the telescopic rod is fixedly arranged on the handle, the first magnet is fixedly arranged on the right side of the groove, and the second magnet is fixedly arranged on the other end of the telescopic rod.

[0010] Preferably, a locking unit for further limiting the rotation shaft is also provided on the groove.

[0011] Preferably, the locking unit includes two movable shafts, a cover plate, a rebounder, a rebound rod and two limit rods, the two movable shafts are rotatably connected to the front and rear sides of the groove respectively, the cover plate is fixedly arranged between the two movable shafts, the rebounder is fixedly arranged on the left side of the groove, the rebound rod is fixedly arranged on the inner side of the cover plate, and the positions of the rebound rod and the rebounder correspond, and the two limit rods are fixedly arranged on the inner side of the cover plate.

[0012] Preferably, a plurality of rectangular slots are formed on the inner side of each positioning head, and a plurality of rectangular blocks corresponding to the plurality of rectangular slots are fixedly disposed on the outer side of each linkage block.

[0013] Preferably, the rotating shaft and the notch are connected via a bearing, the outer ring of the bearing is fixedly connected to the notch, and the inner ring of the bearing is interference fit with the rotating shaft.

[0014] Preferably, the distance between the two limit rods is the same as the maximum width of the telescopic rod.

[0015] The present invention provides a modular quick-install guide rail pair through improvement, which has the following improvements and advantages compared with the prior art: the present invention realizes the quick splicing between two guide rails by opening a notch on the guide rail and integrating a positioning mechanism. This design enables the guide rail to be quickly spliced ​​at any length according to actual needs, greatly improving the flexibility and adaptability of use. During the splicing process, there is no need to perform cumbersome calibration operations, nor to rely on complex auxiliary tools and installation steps, which significantly improves the installation efficiency and reduces the labor cost and time cost. In addition, the pre-limiting unit and locking unit introduced in the present invention provide a firm limit guarantee for the drive shaft of the positioning mechanism, ensuring the stability and safety of the spliced ​​guide rail pair during operation. This limit mechanism not only effectively prevents the deviation and shaking of the guide rail pair during movement, but also greatly enhances the overall rigidity and bearing capacity of the guide rail pair. At the same time, the design of the pre-limiting unit and the locking unit simplifies the installation process, allowing users to complete the splicing and fixing of the guide rails more easily and quickly, further improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the axonometric structure of a guide rail of a modular quick-install guide rail pair in a spliced ​​state;

[0018] Figure 2 It is a schematic diagram of the axonometric structure of a modular quick-install guide rail pair in a separated state;

[0019] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of position A;

[0020] Figure 4 for Figure 2 A schematic diagram of the enlarged structure of position B;

[0021] Figure 5 It is a schematic diagram of the axonometric structure of a cover plate of a modular quick-install guide rail pair in a state of being flipped 90 degrees;

[0022] Figure 6 for Figure 5Schematic diagram of the enlarged structure of the C position;

[0023] Figure 7 It is a schematic diagram of the axonometric structure of a cover plate and a movable shaft of a modular quick-install guide rail pair;

[0024] Figure 8 It is a schematic diagram of the top view of the structure of a positioning mechanism of a modular quick-install guide rail pair in a clamping state;

[0025] Fig. 9 It is a schematic diagram of a top view of a positioning mechanism of a modular quick-install guide rail pair in a released state;

[0026] Fig.10 The present invention is a schematic diagram of the axonometric structure of a movable block, a pin shaft and a linkage block of a modular quick-install guide rail pair.

[0027] Description of reference numerals:

[0028] 1. Guide rail; 2. Slider; 3. Notch; 4. Sealing plate; 5. Groove; 6. Positioning head; 7. Positioning mechanism; 71. Elastic clamping unit; 71-1. Spring; 71-2. Movable block; 71-3. Pin shaft; 71-4. Baffle; 71-5. Linkage block; 72. Driving unit; 72-1. Rotating shaft; 72-2. Eccentric wheel; 72-3. Handle; 8. Pre-limiting unit; 81. Telescopic rod; 82. First magnet; 83. Second magnet; 9. Locking unit; 91. Movable shaft; 92. Cover plate; 93. Rebounder; 94. Rebound rod; 95. Limiting rod; 10. Slot; 11. Block. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than 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.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" 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 directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] See also Figure 1-10 The present invention provides a technical solution: a modular quick-install guide rail pair, comprising a guide rail 1 and a slider 2, the slider 2 is slidably connected to the guide rail 1, the guide rail 1 and the slider 2 are known core components of the guide rail 1 pair, which are existing equipment in the field, and the specific composition and structure are not introduced too much. A side wall of the guide rail 1 is provided with a slot 3 for installation near the lower end surface, and the slot 3 is in the shape of a long strip, extending along the length direction of the guide rail 1 body, and a blocking plate 4 is fixedly provided at the center of the slot 3, and two gaps of a certain width are formed between the blocking plate 4 and the left and right side walls of the slot 3, the blocking plate 4 not only plays the role of closing the center of the slot 3, but also serves as a support and positioning reference for subsequent installation components, and the reserved gap ensures the subsequent positioning head 6 is smoothly inserted and positioned, a groove 5 is provided on the top surface of the guide rail 1, and the groove 5 provides installation space for subsequent components. Two positioning heads 6 are fixedly provided on the other side wall of the guide rail 1, and each positioning head 6 matches the corresponding gap. The positioning head 6 can smoothly enter and be fixed in the corresponding gap, so as to realize the rapid and accurate positioning of the guide rail 1. A positioning mechanism 7 is provided inside the notch 3 of the guide rail 1, and the positioning mechanism 7 includes an elastic clamping unit 71 for fixing the positioning head 6 and a driving unit 72 for driving the elastic clamping unit 71. The elastic clamping unit 71 can realize the stable clamping and release of the positioning head 6, and the driving unit 72 can accurately control the telescopic action of the elastic clamping unit 71, so as to realize the accurate fixation and release of the positioning head 6.

[0033] The cam 71-2 is a vertical cam which is used to hold the cam 71-3 in place and to hold the cam 71-4 in place. When the locking cam 72 is in the closed position, the locking cam 72 is in the closed position, and the two stoppers 77 are in the closed position, so that the two stoppers 77 are locked and the locking cam 72 is locked.

[0034] Specifically, the driving unit 72 includes a rotating shaft 72-1, an eccentric wheel 72-2 and a handle 72-3. The rotating shaft 72-1 is rotatably connected to the top and bottom of the slot 3 respectively, and the top end of the rotating shaft 72-1 extends to the groove 5 on the top surface of the guide rail 1. The rotating shaft 72-1 can stably rotate on the slot 3 and the groove 5. The eccentric wheel 72-2 is fixedly arranged on the rotating shaft 72-1, and the eccentric wheel 72-2 is located on the right side of the movable block 71-2. The eccentric wheel 72-2 is located on the baffle 7 At the gap between 1-4 and the bottom of the slot 3, the eccentric wheel 72-2 cooperates with the movable block 71-2 of the elastic clamping unit 71. The eccentric wheel 72-2 can generate eccentric motion during rotation, thereby pushing the movable block 71-2 in the elastic clamping unit 71, and then enabling the two linkage blocks 71-5 to realize clamping and releasing actions, ensuring the stability and reliability of clamping. The handle 72-3 is fixedly arranged at the top of the rotating shaft 72-1, and the handle 72-3 is convenient for the operator to hold and rotate.

[0035] Guide rail 1 splicing state: When guide rail 1 is in splicing state, eccentric wheel 72-2 does not apply pressure to movable block 71-2 and spring 71-1. In this state, spring 71-1 maintains a natural state and does not apply additional force to movable block 71-2. Under the action of spring 71-1, movable block 71-2 remains stable and does not produce additional movement. Linkage block 71-5 is closely matched with movable block 71-2 and is in a clamping state to ensure the stability and accuracy of guide rail 1 during splicing.

[0036] Guide rail 1 separation state: When guide rail 1 needs to be separated, eccentric wheel 72-2 starts to apply pressure to movable block 71-2 and spring 71-1. During the pressure application process, eccentric wheel 72-2 transmits force to movable block 71-2 through its eccentric structure, thereby compressing spring 71-1. Until movable block 71-2 is against blocking plate 4, spring 71-1 can no longer be compressed. Spring 71-1 stores energy during the compression process and pushes movable block 71-2 to move. During the displacement process, movable block 71-2 will drive pin 71-3 to move. When pin 71-3 moves, it will force linkage block 71-5 with inclined hole to move inward through the slide groove, eventually making linkage block 71-5 in a released state, allowing guide rail 1 to separate smoothly.

[0037] Specifically, the handle 72-3 is also provided with a pre-limiting unit 8 for preliminarily limiting the rotation shaft 72-1. In the above driving unit 72, in order to further ensure the operation accuracy and safety of the rotation shaft 72-1, the handle 72-3 is provided with a pre-limiting unit 8 for preliminarily limiting the rotation shaft 72-1.

[0038] Specifically, the pre-limiting unit 8 includes a telescopic rod 81, a first magnet 82 and a second magnet 83. One end of the telescopic rod 81 is fixedly set on the handle 72-3, the first magnet 82 is fixedly set on the right side of the groove 5, and the second magnet 83 is fixedly set on the other end of the telescopic rod 81.

[0039] When the operator rotates the handle 72-3, the telescopic rod 81 fixed on the handle 72-3 moves accordingly, driving the second magnet 83 fixed at its other end to approach the first magnet 82 fixed on the right side of the groove 5. Due to the strong magnetic attraction between the two, when the second magnet 83 approaches the first magnet 82 to a certain distance, it will produce obvious resistance, thereby achieving the initial limit of the rotating shaft 72-1. This magnetic attraction limiting method is not only highly accurate and quick to respond, effectively avoiding excessive rotation of the rotating shaft 72-1, but also through the ingenious combination of the telescopic rod 81 and the magnet, it achieves accurate initial limit of the rotating shaft 72-1, thereby improving the installation and adjustment accuracy of the guide rail 1 pair. The pre-limiting unit 8 is only used when the guide rail 1 is spliced.

[0040] Specifically, a locking unit 9 for further limiting the rotation shaft 72-1 is also provided on the groove 5. The locking unit 9 can provide a more stable and reliable limiting effect on the basis of the pre-limiting, ensuring that the locking unit 9 can keep the position of the rotation shaft 72-1 fixed when the linkage block 71-5 is in the clamping state.

[0041] Specifically, the locking unit 9 includes two movable shafts 91, a cover plate 92, a rebounder 93, a rebound rod 94 and two limit rods 95. The two movable shafts 91 are rotatably connected to the front and rear sides of the groove 5 respectively. The cover plate 92 is fixedly arranged between the two movable shafts 91. The cover plate 92 can be flipped in the groove 5 through the movable shaft 91. The rebounder 93 is fixedly arranged on the left side of the groove 5. The rebound rod 94 is fixedly arranged on the inner side of the cover plate 92, and the rebound rod 94 corresponds to the position of the rebounder 93. The rebounder 93 and the rebound rod 94 are existing components with simple structure and reliable performance, which can enable the cover plate 92 to cover or open the groove 5. The specific operation method is: press once to open the cover 92, so that the cover 92 is flipped to the outside of the groove 5; press again to close the cover 92, so that the cover 92 is flipped to the inside of the groove 5 to cover the groove 5. Two limit rods 95 are fixedly arranged on the inner side of the cover 92. When the cover 92 is closed, the two limit rods 95 are located on both sides of the telescopic rod 81, thereby limiting and fixing the telescopic rod 81, effectively avoiding the rotation of the rotating shaft 72-1 during the clamping process, and ensuring the stability of the positioning mechanism 7 during the clamping process.

[0042] Specifically, a plurality of rectangular card slots 10 are provided on the inner side of each positioning head 6, and a plurality of rectangular card blocks 11 corresponding to the plurality of rectangular card slots 10 are fixedly provided on the outer side of each linkage block 71-5. When the guide rail 1 is in the splicing state, the rectangular card blocks 11 on the linkage block 71-5 are naturally inserted into the rectangular card slots 10 in the positioning head 6. Adding the card slots 10 and the card blocks 11 on the basis of the above-mentioned elastic clamping unit 71 further improves the stability of the guide rail 1 during splicing.

[0043] Specifically, the rotating shaft 72-1 is connected to the notch 3 via a bearing, the outer ring of the bearing is fixedly connected to the notch 3, and the inner ring of the bearing is interference fit with the rotating shaft 72-1. The bearing improves the stability of the rotating shaft 72-1 during rotation.

[0044] Specifically, the distance between the two limiting rods 95 is the same as the maximum width of the telescopic rod 81. It is ensured that when the cover plate 92 is in the closed state, the limiting rods 95 can directly contact the two side surfaces of the telescopic rod 81, thereby achieving accurate positioning of the telescopic rod 81.

[0045] Working principle:

[0046] Initial state and preparation: In the initial state of the positioning mechanism 7, the linkage block 71-5 remains in a clamping state. When the guide rail 1 is spliced, the cover plate 92 is first pressed, and with the cooperation of the rebound rod 94 and the rebounder 93, the cover plate 92 pops up and turns 90 degrees, opening the groove 5, exposing the handle 72-3 and the pre-limiting unit 8.

[0047] Pre-limit release and pressure: Turn the handle 72-3 to drive the second magnet 83 on the telescopic rod 81 away from the first magnet 82 on the groove 5 to release the pre-limit. Continue to turn the handle 72-3 to transfer the force generated by the eccentric structure of the eccentric wheel 72-2 to the position below the movable block 71-2 through the rotation of the eccentric wheel 72-2.

[0048] The movable block 71-2 and the spring 71-1 act: the movable block 71-2 presses the spring 71-1 under the action of force until the movable block 71-2 abuts against the blocking plate 4. The spring 71-1 is compressed and stores energy in this process. As the spring 71-1 is compressed, the movable block 71-2 is displaced.

[0049] The linkage block 71-5 is released: the displacement of the movable block 71-2 drives the pin shaft 71-3 connected thereto to move, and the movement of the pin shaft 71-3 forces the linkage block 71-5 with the inclined hole to move inward through the slide slot until the linkage block 71-5 reaches the released state.

[0050] Splicing of guide rails 1: At this time, insert the two positioning heads 6 of the other guide rail 1 into the gaps on both sides of the blocking plate 4, and then rotate the handle 72-3 in the opposite direction to make the eccentric wheel 72-2 cancel the pressure on the movable block 71-2. The movable block 71-2 returns to its original position under the elastic restoring force of the spring 71-1, and the pin 71-3 moves synchronously. The movement of the pin 71-3 forces the linkage block 71-5 with the inclined hole to move outward through the slide groove, so that the block 11 on the linkage block 71-5 enters the slot 10 of the positioning head 6, thereby realizing the precise splicing of the guide rails 1.

[0051] Pre-limiting and closing of cover plate 92: After the splicing is completed, the second magnet 83 on the telescopic rod 81 re-attracts the first magnet 82 during the rotation process to complete the pre-limiting. Finally, the cover plate 92 is pressed again to connect the rebound rod 94 with the rebounder 93, and the cover plate 92 closes the groove 5.

[0052] The locking unit 9 is limited and fixed: at this time, the two limit rods 95 are located on both sides of the telescopic rod 81, which limit and fix the telescopic rod 81, effectively preventing the rotating shaft 72-1 from rotating during the clamping process, thereby ensuring the stability and reliability of the positioning mechanism 7 during the clamping process.

[0053] Separation of the guide rail 1: When the guide rail 1 is separated, the linkage block 71-5 releases the positioning head 6 through the reverse operation steps, so that the guide rail 1 is separated smoothly.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention 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 with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A modular quick-install guide rail pair, comprising a guide rail (1) and a slider (2), wherein the slider (2) is slidably connected to the guide rail (1), characterized in that: A slot (3) for installation is provided on one side wall of the guide rail (1) near the lower end surface, a sealing plate (4) is fixedly provided at the center of the slot (3), and two gaps of a certain width are formed between the sealing plate (4) and the left and right side walls of the slot (3), a groove (5) is provided on the top surface of the guide rail (1), and two positioning heads (6) are fixedly provided on the other side wall of the guide rail (1), each positioning head (6) matches a corresponding gap, and a positioning mechanism (7) is provided inside the slot (3) of the guide rail (1), and the positioning mechanism (7) comprises an elastic clamping unit (71) for fixing the positioning head (6) and a driving unit (72) for driving the elastic clamping unit (71).

2. A modular quick-install guide rail pair according to claim 2, characterized in that: The elastic clamping unit (71) comprises a spring (71-1), a movable block (71-2), two pairs of pins (71-3), two baffles (71-4) and two linkage blocks (71-5); one end of the spring (71-1) is fixedly arranged on the inner side of the blocking plate (4); a slot for accommodating the spring (71-1) is provided at the middle of the movable block (71-2); the spring (71-1) is located inside the slot, and the other end of the spring (71-1) is fixedly connected to the inner wall of the slot; the two pairs of pins (71-3) are respectively fixedly arranged on the top of the left and right sides of the movable block (71-2); each pair of pins (71-3) is fixedly arranged on the top of the left and right sides of the movable block (71-2); 3) comprises two pin shafts (71-3) arranged in an oblique line, the two baffles (71-4) are fixedly arranged at the top of the slot (3), and the two baffles (71-4) maintain a certain gap with the bottom of the slot (3), the inner side of the blocking plate (4) is provided with two slide grooves, and the left side of each baffle (71-4) is also provided with a slide groove, the two linkage blocks (71-5) are respectively slidably connected with the blocking plate (4) and the slide grooves of the two baffles (71-4), and each linkage block (71-5) is provided with an oblique hole matching each pair of pin shafts (71-3), and each pair of pin shafts (71-3) is movably inserted into the corresponding oblique hole.

3. A modular quick-install guide rail pair according to claim 3, characterized in that: The driving unit (72) comprises a rotating shaft (72-1), an eccentric wheel (72-2) and a handle (72-3); the rotating shaft (72-1) is rotatably connected to the top and bottom of the slot (3) respectively, and the top end of the rotating shaft (72-1) extends to the groove (5) on the top surface of the guide rail (1); the eccentric wheel (72-2) is fixedly arranged on the rotating shaft (72-1), and the eccentric wheel (72-2) is located on the right side of the movable block (71-2); and the handle (72-3) is fixedly arranged on the top end of the rotating shaft (72-1).

4. A modular quick-install guide rail pair according to claim 4, characterized in that: The handle (72-3) is also provided with a pre-limiting unit (8) for initially limiting the rotation shaft (72-1).

5. A modular quick-install guide rail pair according to claim 5, characterized in that: The pre-limiting unit (8) comprises a telescopic rod (81), a first magnet (82) and a second magnet (83), one end of the telescopic rod (81) is fixedly arranged on the handle (72-3), the first magnet (82) is fixedly arranged on the right side of the groove (5), and the second magnet (83) is fixedly arranged on the other end of the telescopic rod (81).

6. A modular quick-install guide rail pair according to claim 6, characterized in that: The groove (5) is also provided with a locking unit (9) for further limiting the position of the rotating shaft (72-1).

7. A modular quick-install guide rail pair according to claim 7, characterized in that: The locking unit (9) comprises two movable shafts (91), a cover plate (92), a rebounder (93), a rebound rod (94) and two limit rods (95); the two movable shafts (91) are rotatably connected to the front and rear sides of the groove (5) respectively; the cover plate (92) is fixedly arranged between the two movable shafts (91); the rebounder (93) is fixedly arranged on the left side of the groove (5); the rebound rod (94) is fixedly arranged on the inner side of the cover plate (92), and the positions of the rebound rod (94) and the rebounder (93) correspond; the two limit rods (95) are fixedly arranged on the inner side of the cover plate (92).

8. A modular quick-install guide rail pair according to claim 7, characterized in that: A plurality of rectangular slots (10) are provided on the inner side of each positioning head (6), and a plurality of rectangular blocks (11) corresponding to the plurality of rectangular slots (10) are fixedly provided on the outer side of each linkage block (71-5).

9. The modular quick-install guide rail pair according to claim 3, characterized in that: The rotating shaft (72-1) and the notch (3) are connected via a bearing, the outer ring of the bearing and the notch (3) are fixedly connected, and the inner ring of the bearing and the rotating shaft (72-1) are interference fit.

10. A modular quick-install guide rail pair according to claim 7, characterized in that: The distance between the two limiting rods (95) is the same as the maximum width of the telescopic rod (81).

Images