A bite-type linear push rack

Abstract

The present invention relates to the field of mechanical transmission technology. The present invention discloses an interlocking linear push rack, including: a carrying joint, the carrying joint is used to connect with the pushed object; a flexible push rack assembly, two groups of flexible push rack assemblies that can interlock with each other are installed on the carrying joint; wherein, when the two groups of flexible push rack assemblies are transformed into an interlocking state, the carrying joint is pushed forward. The present invention provides an interlocking linear push rack, which changes the characteristics of the traditional rack and enables it to have a telescopic function. The motor drives the gear to rotate, thereby realizing that the two groups of flexible push rack assemblies are changed from a separated state to a mutually interlocking state. When the two groups of flexible push rack assemblies are in an interlocking state, a straight line rack with rigidity is formed, so that the meshed toothed belt has good rigidity and is not easy to bend, and can realize high-precision, high-speed and high-stability transmission. It has the characteristics of multi-point positioning, two-way push and pull, speed control, etc., and saves storage space.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical transmission, in particular to an engaging linear pushing rack. Background Art

[0002] With the improvement of flexible materials, engineering plastics and automation level, and people's pursuit of control accuracy and operating efficiency of mechanical transmission, the demand for linear push products with the characteristics of maintenance-free, light weight, high precision, high speed, good stability, multi-point control, easy installation, low noise, large stroke, etc. is becoming more and more urgent, especially in some fields such as medical MRI, aerospace, military equipment, etc., which require products with non-magnetic characteristics, and workshops in food, semiconductor, 3C and other industries have high requirements for the cleanliness of transmission products.

[0003] In the traditional automation field, there are many linear transmission actions, such as: cylinders, hydraulic cylinders, ball screws, linear motors, traditional gear racks, standard timing belts, etc., but their materials or structures have limitations. For example, cylinders can only achieve two-point control and cannot control speed; hydraulic cylinders not only have the risk of oil leakage, but also have low precision and efficiency; traditional gear racks and ball screws have high precision, but must be made of metal and require regular oiling and maintenance; standard timing belts have the disadvantages of poor precision, low speed, poor stability, and large installation space. Combining the above product characteristics, there are currently no products on the market with high precision, high speed, high cleanliness, good stability, non-magnetic, maintenance-free, low noise, and long-distance transmission. Summary of the invention

[0004] In order to achieve the above object, the present invention discloses an interlocking linear push rack, comprising:

[0005] A transport joint, which is used to connect with the pushed object;

[0006] Flexible push rack assembly, two sets of flexible push rack assemblies that can engage with each other are installed on the carrying joint;

[0007] Among them, when the two sets of flexible pushing rack components are transformed into the bite shape, the transport joint is pushed forward.

[0008] Preferably, two sets of flexible push rack assemblies are oppositely connected to the side ends of the carrier joint, and the flexible push rack assemblies include:

[0009] A flexible toothed belt, which is installed at the side end of the carrier joint;

[0010] The toothed belt driving teeth and the engaging tooth blocks are evenly distributed on the front and back sides of the flexible toothed belt respectively;

[0011] The driving gear is meshed with the toothed belt driving teeth and is used to drive the flexible toothed belt to travel.

[0012] Preferably, a recessed portion one is provided on the bottom surface of the engaging tooth block, a convex portion one matching the recessed portion one is provided on the back surface of the flexible tooth belt, an engaging groove is provided on the top surface of the engaging tooth block, an engaging tooth matching the engaging groove is provided on the back surface of the flexible tooth belt between adjacent convex portions one, an engaging portion is provided on two non-adjacent side surfaces of the engaging tooth block, and the engaging portion includes an outer convex engaging surface and an inner concave engaging surface forming an S-shaped structure, the outer convex engaging surface is arranged close to the top surface of the engaging tooth block, and the inner concave engaging surface is arranged close to the bottom surface of the engaging tooth block.

[0013] Preferably, the convex meshing surface and the concave meshing surface are connected by a smooth meshing bevel transition, and convex side stop surfaces are provided at both ends of the length direction of the convex meshing surface, and concave side stop surfaces are provided at both ends of the length direction of the concave meshing surface.

[0014] Preferably, the toothed belt driving teeth close to the convex portion 1 are detachable movable teeth, and a plurality of clamping rods are installed at the end of the movable teeth away from the tooth surface. A cavity is provided in the engaging tooth block, and the clamping rods pass through the convex portion 1 away from the end of the movable teeth and are clamped in the cavity.

[0015] Preferably, two non-adjacent side surfaces of the transport joint are respectively provided with at least two groups of engaging grooves for matching the engaging teeth and at least two groups of recesses for matching the convex portion. A cavity is provided inside the transport joint, and the clamping rod is clamped in the cavity away from the movable tooth end. The transport joint is also provided with a tooth block contact surface for matching the bite portion and an installation interface for connecting with the pushed object.

[0016] Preferably, the carrying joint and the flexible pushing rack assembly are both made of engineering plastics.

[0017] Preferably, it also includes two groups of auxiliary guide components which are symmetrically arranged, each group of auxiliary guide components is close to the front side of the flexible toothed belt and meshes with the toothed belt driving teeth, and is used to assist the linear pushing of the carrier joint, and the auxiliary guide components include:

[0018] A side mounting plate, on which two fixed housings are symmetrically mounted;

[0019] Telescopic rods, two telescopic rods are symmetrically mounted on the side mounting plate, and auxiliary gears meshing with the toothed belt drive teeth are mounted on the ends of the telescopic rods away from the side mounting plate;

[0020] An adjustment component is installed in the fixed housing, and the adjustment component includes an adjustment rod, and the adjustment rod is connected to the telescopic rod through a flip rod;

[0021] A reset assembly is mounted on the side mounting plate and connected to the adjusting rod.

[0022] Preferably, the adjustment component comprises:

[0023] A fixed cylinder is installed on the inner wall of the fixed shell, and a plurality of guide inclined plates are installed circumferentially on the fixed cylinder. The guide groove is located between two adjacent guide inclined plates, and a triangular fixing groove is opened on the guide inclined plate;

[0024] A rotating block, the rotating block is located in the fixed cylinder, the rotating block is rotatably connected to the end of the adjusting rod away from the flip rod, a plurality of inclined guide strips are installed circumferentially on the rotating block, the inclined surfaces of the inclined guide strips are adapted to the triangular fixed groove, and the inclined guide strips are located in the guide groove;

[0025] A top block, the top block is located in the fixed cylinder, a guide column slidably connected to the guide groove is installed on the top block, and a wedge block adapted to the inclined surface of each inclined guide strip is installed on the top block;

[0026] A pressing block is arranged through the fixed shell body away from the end of the side mounting plate and is connected with the top block. The two pressing blocks are connected through an intermediate plate.

[0027] Preferably, the reset component comprises:

[0028] A support plate, the support plate is connected to the end of the side mounting plate away from the fixed housing, the adjustment rod is passed through the support plate near the end of the flip rod, and the flip rod is connected to the end of the telescopic rod near the auxiliary gear;

[0029] The reset spring is sleeved on the adjusting rod and is arranged between the rotating block and the supporting plate. When the reset spring contracts, the rotating block passes through the supporting plate.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] (1) The present invention provides an interlocking linear push rack, which drives the gear to rotate by a motor, thereby realizing that two sets of flexible push rack components are changed from a separated state to a mutually interlocking state. When the two sets of flexible push rack components are in the interlocking state, a straight line rack with rigidity is formed, which changes the characteristics of the traditional rack, so that the toothed belt after meshing has good rigidity and is not easy to bend, and can realize high-precision, high-speed and high-stability transmission, and can also realize push-pull without a guide;

[0032] (2) The present invention provides an interlocking linear push rack, which realizes the push-pull action by driving the interlocking flexible push rack, thus changing the characteristics of the traditional rack and making it have a telescopic function;

[0033] (3) The present invention provides an interlocking linear push rack, which is driven by a motor to rotate the gear and has the characteristics of multi-point positioning, bidirectional push and pull, speed control, etc.

[0034] (4) The present invention provides an interlocking linear push rack, in which the interlocking parts of the two sets of flexible push rack assemblies become steel columns, and the uninterlocking parts of the two sets of flexible push rack assemblies still maintain their flexibility and can be curled for storage, thereby reducing the storage space. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] 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.

[0036] Figure 1 A perspective view of the present invention;

[0037] Figure 2 A top view of the present invention;

[0038] Figure 3 It is a schematic diagram of the structure of a single set of flexible pushing rack components of the present invention;

[0039] Figure 4 It is a front schematic diagram of the flexible toothed belt of the present invention;

[0040] Figure 5 It is a schematic diagram of the back side of the flexible toothed belt of the present invention;

[0041] Figure 6 The three-dimensional block of the bite tooth of the present invention Figure 1 ;

[0042] Figure 7 The three-dimensional block of the bite tooth of the present invention Figure 2 ;

[0043] Figure 8 This is an outline diagram of the detachable movable tooth of the present invention;

[0044] Fig. 9 It is the appearance diagram of the carrier joint of the present invention;

[0045] Fig.10 It is a position relationship diagram of the auxiliary guide assembly of the present invention;

[0046] Fig.11 The auxiliary guide assembly structure of the present invention is schematically shown in FIG. Figure 1 (two auxiliary gears are not unfolded);

[0047] Fig.12 The auxiliary guide assembly structure of the present invention is schematically shown in FIG. Figure 2 (Two auxiliary gears are deployed);

[0048] Fig.13 It is a schematic diagram of the connection of various structures in the fixed shell of the present invention.

[0049] In the figure: 10. Carrying joint; 11. Flexible push rack assembly; 12. Flexible toothed belt; 13. Toothed belt driving tooth; 14. Engaging tooth block; 15. Concave portion 1; 16. Concave portion 1; 17. Engaging groove; 18. Engaging tooth; 19. Outer convex meshing surface; 20. Inner concave meshing surface; 21. Engaging inclined surface; 22. Convex side stop surface; 23. Concave side stop surface; 24. Tooth block contact surface; 251. Mounting interface; 252 .Auxiliary guide assembly; 26. Side mounting plate; 27. Fixed shell; 28. Telescopic rod; 29. ​​Auxiliary gear; 30. Adjustment rod; 31. Fixed cylinder; 32. Guide ramp; 33. Guide groove; 34. Triangular fixing groove; 35. Rotating block; 36. Inclined guide strip; 37. Top block; 38. Guide column; 39. Pressing block; 40. Support plate; 41. Return spring; 42. Flip rod; 43. Clamping rod. DETAILED DESCRIPTION

[0050] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0051] Example

[0052] The present invention will be further described below in conjunction with the accompanying drawings.

[0053] like Figure 1 to Figure 2 As shown, the present embodiment provides an interlocking linear push rack, comprising:

[0054] A transport connector 10, which is used to connect with the pushed object;

[0055] Flexible push rack assembly 11, two sets of flexible push rack assembly 11 that can be engaged with each other are installed on the carrier joint 10;

[0056] When the two sets of flexible pushing rack components 11 are transformed into the engaged state, the transport joint 10 is pushed forward.

[0057] The working principle and beneficial effects of the above technical solution are:

[0058] The present invention provides an interlocking linear push rack, which drives the gear to rotate by a motor, thereby realizing that two sets of flexible push rack assemblies 11 are changed from a separated state to a mutually interlocking state, and when the two sets of flexible push rack assemblies 11 are in an interlocking state, a straight line rack with rigidity is formed, thereby realizing the linear push of the carrier joint 10 connected to the flexible push rack assembly 11, and the pushed items on the carrier joint 10 are pushed forward in a straight line, and the motor drives the gear to rotate in the reverse direction, so that the two sets of flexible push rack assemblies 11 can be changed from an interlocking state to a mutually separated state, and after the two sets of flexible push rack assemblies 11 are in a separated state, the flexibility is restored, thereby realizing the linear retreat of the carrier joint 10 connected to the flexible push rack assembly 11. The interlocking linear push rack disclosed by the present invention, as a new linear transmission structure, can realize the control of speed, accuracy and conveying distance, and the push rack has the advantages of high accuracy and good stability, and can be matched with an additional guide rail to realize long-distance push. In addition, the single set of flexible push rack assembly 11 is flexible and can be easily stored, so it occupies a small space.

[0059] The function of the transport joint 10 is to connect the two sets of flexible pushing rack components 11 with the pushed objects. The transport joint 10 is directly connected to the pushed objects, and installation and disassembly are convenient.

[0060] like Figure 2 As shown, in one embodiment, two sets of flexible push rack assemblies 11 are oppositely connected to the side ends of the carrier joint 10, and the flexible push rack assemblies 11 include:

[0061] A flexible toothed belt 12, the flexible toothed belt 12 is mounted on the side end of the carrier joint 10;

[0062] The toothed belt driving teeth 13 and the engaging tooth blocks 14 are evenly distributed on the front and back sides of the flexible toothed belt 12 respectively;

[0063] The driving gear is meshed with the toothed belt driving teeth 13 and is used to drive the flexible toothed belt 12 to move.

[0064] The working principle and beneficial effects of the above technical solution are:

[0065] Each set of flexible pushing rack assemblies 11 includes a flexible toothed belt 12, toothed belt driving teeth 13, an engaging tooth block 14 and a driving gear. The driving gear is driven by a motor to rotate. With the cooperation of the driving gear and the toothed belt driving teeth 13 located on the front side of the flexible toothed belt 12, the flexible toothed belt 12 can move. When the two flexible toothed belts 12 are converted into a mutually fitting movement, the engaging tooth block 14 located on the back side of the flexible toothed belts 12 enables the two flexible toothed belts 12 to become mutually meshed. When the two flexible toothed belts 12 are in a meshing state, a straight rack with rigidity is formed, thereby realizing the linear pushing of the carrying joint 10 connected to the two flexible toothed belts 12.

[0066] The flexible toothed belt 12 is made of flexible material, similar to a standard synchronous belt. It is recommended to use polyurethane material first, and rubber or other flexible materials can also be used. In addition, chemical fibers such as aromatic polyamide fibers can be used inside the flexible toothed belt 12 as a toothed belt reinforcement layer, and steel wire can also be used as a reinforcement layer.

[0067] The bite tooth block 14 is made of engineering plastics, preferably polyoxymethylene, polyamide, polyetheretherketone and the like, and may be added with fibers to enhance rigidity, and may be formed by injection molding or machining.

[0068] The carrier joint 10 connects two flexible toothed belts 12 together to prevent the flexible toothed belts 12 from spreading out at the head. The flexible toothed belt 12 is driven by a driving gear that matches the tooth shape of the toothed belt driving teeth 13 located on the front of the flexible toothed belt 12, so that the flexible toothed belt 12 moves along a certain track, and a certain opening and closing angle needs to be left in the area before the bite tooth block 14 bites, so as to prevent the bite tooth block 14 from interfering with the movement when it fits the back of the flexible toothed belt 12.

[0069] Specifically, interlocking tooth blocks 14 that mesh with each other are installed on the two flexible toothed belts 12. When the two flexible toothed belts 12 are driven by the driving gear and the toothed belt driving teeth 13 (or the pulley and other toothed gears, which are based on the premise of driving the flexible toothed belts 12 to move along a certain trajectory, the same below), the two flexible toothed belts 12 are similar to "zippers". The interlocking tooth blocks 14 are interlocked into a toothed "steel column" at a certain interval and sequence, and the two flexible toothed belts 12 become a linearly retractable rack to achieve the function of pushing and pulling objects.

[0070] Because the mutual support of the meshing tooth block 14, so the pushing rack has the advantages of high precision and good stability. In addition, the single flexible toothed belt 12 with meshing tooth block 14 has flexibility, can be convenient to take in, so its occupied space is little.

[0071] like Figures 4 to 7 As shown, in one embodiment, a concave portion 15 is provided on the bottom surface of the engaging tooth block 14, a convex portion 16 adapted to the concave portion 15 is provided on the back surface of the flexible toothed belt 12, an engaging groove 17 is provided on the top surface of the engaging tooth block 14, and an engaging tooth 18 adapted to the engaging groove 17 is provided on the back surface of the flexible toothed belt 12 between adjacent convex portions 16, and an engaging portion is provided on two non-adjacent side surfaces of the engaging tooth block 14, and the engaging portion includes an outer convex engaging surface 19 and an inner concave engaging surface 20 forming an S-shaped structure, the outer convex engaging surface 19 is arranged close to the top surface of the engaging tooth block 14, and the inner concave engaging surface 20 is arranged close to the bottom surface of the engaging tooth block 14.

[0072] The working principle and beneficial effects of the above technical solution are:

[0073] The back of the flexible toothed belt 12 is provided with an engaging tooth 18 that fits the engaging groove 17. The engaging tooth 18 is used for seamless engagement of the engaging tooth block 14 and the back of the flexible toothed belt 12 when the top surface of the engaging tooth block 14 fits against the back of the flexible toothed belt 12. The engaging tooth block 14 is symmetrical. After the adjacent engaging tooth blocks 14 are engaged, the convex engaging surfaces 19 and the concave engaging surfaces 20 of the two can contact each other, and the contact surfaces fit tightly. The engaging tooth blocks 14 can be interlocked after engagement to prevent the flexible toothed belt 12 from separating, and the overall structure has good rigidity.

[0074] In one embodiment, the convex meshing surface 19 and the concave meshing surface 20 are transitionally connected by a smooth meshing bevel 21, and convex side stop surfaces 22 are provided at both ends of the length direction of the convex meshing surface 19, and concave side stop surfaces 23 are provided at both ends of the length direction of the concave meshing surface 20.

[0075] The working principle and beneficial effects of the above technical solution are:

[0076] When the engaging portions of the adjacent engaging tooth blocks 14 engage, the convex side stop surface 22 and the concave side stop surface 23 are provided to prevent the engaging tooth blocks 14 from shifting relative to each other in the vertical pushing direction.

[0077] like Figure 8 As shown, in one embodiment, the toothed belt driving tooth 13 near the protrusion 16 is a detachable movable tooth, and a plurality of clamping rods 43 are installed at the end of the movable tooth away from the tooth surface. A cavity is set in the engaging tooth block 14, and the clamping rod 43 passes through the protrusion 16 away from the end of the movable tooth and is clamped in the cavity.

[0078] The working principle and beneficial effects of the above technical solution are:

[0079] In order to install the meshing tooth block 14 on the protrusion 16, a movable tooth with the same tooth shape as the toothed belt driving tooth 13 located on the front of the flexible toothed belt 12 is used, and the clamping rod 43 passes through the protrusion 16 to clamp the meshing tooth block 14 to the protrusion 16. A cavity is set inside the meshing tooth block 14 to reduce weight and facilitate the clamping of the clamping rod 43. The meshing tooth block 14 and the movable teeth are fixed on the flexible toothed belt 12 in a certain order and interval, and it is required that the distance between the two meshing tooth blocks 14 after meshing is exactly a multiple of the pitch of the toothed belt driving tooth 13. In order not to affect the transmission, the tooth shape of the movable tooth must be the same as the tooth shape of the toothed belt driving tooth 13, and the installation position must be in the middle of the two teeth to ensure normal driving.

[0080] The movable teeth are made of engineering plastics, and the material and molding method are the same as those of the bite tooth block 14. The bite tooth block 14 and the flexible tooth belt 12 can also be fixedly connected by means of buckles, threads, bonding, etc.

[0081] like Fig. 9As shown, in one embodiment, two non-adjacent side surfaces of the transport joint 10 are respectively provided with at least two groups of engaging grooves 17 for matching the engaging teeth 18 and at least two groups of recesses 15 for matching the protrusions 16. A cavity is provided inside the transport joint 10, and the clamping rod 43 is clamped in the cavity away from the movable tooth end. The transport joint 10 is also provided with a tooth block contact surface 24 for matching the bite part and an installation interface 251 for connecting with the pushed object.

[0082] The working principle and beneficial effects of the above technical solution are:

[0083] The contact surface between the transport joint 10 and the flexible toothed belt 12 is adapted with a recess 15 and an engaging groove 17. The recess 15 is used to connect with the protrusion 16, and the engaging groove 17 is used to connect with the engaging tooth 18. Two movable tooth mounting holes are provided in the recess 15, and the movable teeth are clamped in the movable tooth mounting holes through the clamping rod 43, thereby realizing the fixed connection between the flexible toothed belt 12 and the transport joint 10. The transport joint 10 is also provided with an installation interface 251 connected to the pushed object. The above-mentioned installation interface 251 is in the form of a threaded interface, and the interface form can also be changed according to the actual application scenario.

[0084] The carrier joint 10 is made of engineering plastics, and its material and molding method are the same as those of the bite tooth block 14. Its bottom contour is the same as the side contour of the tooth block, and its side contour is the same as the back contour of the toothed belt. Its head can be fixed by threaded connection according to the interface of the connected object.

[0085] In one embodiment, the carrier joint 10 and the flexible push rack assembly 11 are both made of engineering plastics.

[0086] The beneficial effects of the above technical solution are:

[0087] The toothed belts and toothed blocks are made of non-metallic materials, which can achieve light weight, non-magnetic, high cleanliness, low noise and maintenance-free.

[0088] like Fig.10 As shown, in one embodiment, two groups of auxiliary guide components 252 are symmetrically arranged, each group of auxiliary guide components 252 is close to the front side of the flexible toothed belt 12 and meshes with the toothed belt driving teeth 13, and is used to assist the linear push of the carrier joint 10. The auxiliary guide components 252 include:

[0089] A side mounting plate 26 on which two fixed housings 27 are symmetrically mounted;

[0090] Telescopic rods 28, two telescopic rods 28 are symmetrically mounted on the side mounting plate 26, and an auxiliary gear 29 meshing with the toothed belt drive teeth 13 is mounted on the end of the telescopic rod 28 away from the side mounting plate 26;

[0091] An adjustment assembly is installed in the fixed housing 27, and includes an adjustment rod 30, and the adjustment rod 30 is connected to the telescopic rod 28 through a flip rod 42;

[0092] The reset assembly is mounted on the side mounting plate 26 and connected to the adjustment rod 30 .

[0093] The working principle and beneficial effects of the above technical solution are:

[0094] When the linear push rack is used to push over long distances, it can be equipped with an additional guide rail and an auxiliary guide component 252 to achieve linear pushing of the auxiliary transport joint 10. When the flexible toothed belt 12 moves in a straight line, the auxiliary gear 29 rotates on the toothed belt driving teeth 13 arranged on the front side of the flexible toothed belt 12, thereby playing an auxiliary guiding role. When the linear push rack pushes over a longer distance, the two auxiliary gears 29 are driven to move away from each other through the adjustment component, thereby increasing the auxiliary guiding distance of the auxiliary gear 29 as much as possible.

[0095] like Figures 11 to 13 As shown, in one embodiment, the adjustment component includes:

[0096] A fixed cylinder 31, which is mounted on the inner wall of the fixed housing 27. A plurality of guide inclined plates 32 are circumferentially mounted on the fixed cylinder 31. A guide groove 33 is located between two adjacent guide inclined plates 32. A triangular fixing groove 34 is formed on the guide inclined plates 32.

[0097] A rotating block 35, the rotating block 35 is located in the fixed cylinder 32, the rotating block 35 is rotatably connected to the end of the adjusting rod 30 away from the flip rod 42, a plurality of inclined guide strips 36 are circumferentially installed on the rotating block 35, the inclined surfaces of the inclined guide strips 36 are adapted to the triangular fixed grooves 34, and the inclined guide strips 36 are located in the guide grooves 33;

[0098] A top block 37, the top block 37 is located in the fixed cylinder 31, a guide column 38 slidably connected to the guide groove 33 is installed on the top block 37, and a wedge block adapted to the inclined surface of each inclined guide strip 36 is installed on the top block 37;

[0099] The pressing block 39 passes through the end of the fixed housing 27 away from the side mounting plate 26 and is connected to the top block 37 . The two pressing blocks 39 are connected via an intermediate plate.

[0100] The working principle and beneficial effects of the above technical solution are:

[0101] The pressing block 39 is manually pressed, and the pressing block 39 drives the top block 37 connected thereto to press against the rotating block 35 in the fixed cylinder 31. At this time, the wedge block on the rotating block 35 presses against the inclined surface of the inclined guide strip 36, and the rotating block 35 moves in the direction close to the triangular fixed groove 34. With the reaction force of the reset assembly, after the inclined guide strip 36 disengages from the guide groove 33, the wedge block further squeezes the inclined surface of the inclined guide strip 36, so that the rotating block 35 rotates at a small angle, so that the inclined surface of the inclined guide strip 36 is stuck in the triangular fixed groove 34. In this way, after the adjusting rod 30 drives the telescopic rod 28 to flip and extend through the flip rod 42, the position of the two auxiliary gears 29 is fixed. When the two auxiliary gears 29 need to return to their original positions, the pressing block 39 is pressed again, and the wedge block again presses against the inclined surface of the inclined guide strip 36, so that the inclined surface of the inclined guide strip 36 is disengaged from the triangular fixing groove 34, and the rotating block 35 is rotated at a small angle again. Under the reset of the reset assembly, the inclined guide strip 36 retreats into the guide groove 33.

[0102] In one embodiment, the reset assembly includes:

[0103] A support plate 40 is connected to the end of the side mounting plate 26 away from the fixed housing 27, and the end of the adjusting rod 30 near the flip rod 42 is penetrated by the support plate 40, and the flip rod 42 is connected to the end of the telescopic rod 28 near the auxiliary gear 29;

[0104] The return spring 41 is sleeved on the adjusting rod 30 and is disposed between the rotating block 35 and the supporting plate 40 . When the return spring 41 contracts, the rotating block 35 passes through the supporting plate 40 .

[0105] The working principle and beneficial effects of the above technical solution are:

[0106] After the pressing block 39 is manually pressed, the return spring 41 contracts, the adjusting rod 30 extends on the supporting plate 40, and the telescopic rod 28 is turned and extended by the turning rod 42, so that the positions of the two auxiliary gears 29 are fixed. After the pressing block 39 is pressed again, the rotation block 35 releases the limit on the fixing cylinder 31, the return spring 41 extends, and the adjusting rod 30 retreats on the supporting plate 40.

[0107] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An interlocking linear push rack, characterized in that: include: A transport joint (10), the transport joint (10) is used to connect with the pushed object; Flexible push rack components (11), two sets of flexible push rack components (11) that can engage with each other are installed on the carrier joint (10); When the two sets of flexible pushing rack components (11) are transformed into an engaged state, the transport joint (10) is pushed forward; Two sets of flexible push rack assemblies (11) are connected to the side ends of the carrier joint (10) in a counter-connected manner. The flexible push rack assemblies (11) include: A flexible toothed belt (12), the flexible toothed belt (12) being mounted on a side end of the carrier joint (10); The toothed belt driving teeth (13) and the engaging tooth blocks (14) are evenly distributed on the front and back sides of the flexible toothed belt (12); A driving gear, the driving gear meshes with the toothed belt driving teeth (13) and is used to drive the flexible toothed belt (12) to move; The invention also comprises two groups of auxiliary guide assemblies (252) which are symmetrically arranged, each group of auxiliary guide assemblies (252) is close to the front side of the flexible toothed belt (12) and meshes with the toothed belt driving teeth (13), the auxiliary guide assemblies (252) comprising: two side mounting plates (26) symmetrically mounted on the fixed housing (27), two telescopic rods (28) symmetrically mounted on the side mounting plates (26), an auxiliary gear (29) meshing with the toothed belt driving teeth (13) being mounted on the ends of the telescopic rods (28) away from the side mounting plates (26), an adjustment assembly being mounted in the fixed housing (27), the adjustment assembly comprising an adjustment rod (30), the adjustment rod (30) being connected to the telescopic rod (28) via a flip rod (42), and a reset assembly being mounted on the side mounting plates (26) and connected to the adjustment rod (30); The adjustment assembly comprises: a fixed cylinder (31) mounted on the inner wall of a fixed housing (27); a plurality of guide inclined plates (32) are circumferentially mounted on the fixed cylinder (31); a guide groove (33) is located between two adjacent guide inclined plates (32); a triangular fixing groove (34) is provided on the guide inclined plates (32); a rotating block (35) is located in the fixed cylinder (31); the rotating block (35) is rotatably connected to the end of the adjustment rod (30) away from the flip rod (42); a plurality of inclined guide strips are circumferentially mounted on the rotating block (35); (36), the inclined surface of the inclined surface guide strip (36) is adapted to the triangular fixing groove (34), the inclined surface guide strip (36) is located in the guide groove (33), the top block (37) is located in the fixing cylinder (31), a guide column (38) slidably connected to the guide groove (33) is installed on the top block (37), a wedge block adapted to the inclined surface of each inclined surface guide strip (36) is installed on the top block (37), and a pressing block (39) is penetrated through the end of the fixing housing (27) away from the side mounting plate (26) and connected to the top block (37).

2. The interlocking linear push rack according to claim 1, characterized in that: The bottom surface of the meshing tooth block (14) is provided with a concave portion (15), the back surface of the flexible toothed belt (12) is provided with a convex portion (16) adapted to the concave portion (15), the top surface of the meshing tooth block (14) is provided with an engaging groove (17), the back surface of the flexible toothed belt (12) is provided with engaging teeth (18) adapted to the engaging groove (17) between adjacent convex portions (16), and the two non-adjacent side surfaces of the meshing tooth block (14) are provided with a meshing portion, the meshing portion comprising an outer convex meshing surface (19) and an inner concave meshing surface (20) forming an S-shaped structure, the outer convex meshing surface (19) being arranged close to the top surface of the meshing tooth block (14), and the inner concave meshing surface (20) being arranged close to the bottom surface of the meshing tooth block (14).

3. The interlocking linear push rack according to claim 2, characterized in that: The outer convex meshing surface (19) and the inner concave meshing surface (20) are transitionally connected via a smooth meshing inclined surface (21); convex side stop surfaces (22) are provided at both ends of the length direction of the outer convex meshing surface (19); and concave side stop surfaces (23) are provided at both ends of the length direction of the inner concave meshing surface (20).

4. The interlocking linear push rack according to claim 2, characterized in that: The toothed belt driving teeth (13) near the convex part one (16) are detachable movable teeth, and a plurality of clamping rods (43) are installed at the ends of the movable teeth away from the tooth surface. A cavity is arranged inside the engaging tooth block (14), and the clamping rods (43) pass through the convex part one (16) at the ends away from the movable teeth and are clamped in the cavity.

5. The interlocking linear push rack according to claim 4, characterized in that: Two non-adjacent side surfaces of the transport joint (10) are respectively provided with at least two groups of engaging grooves (17) adapted to the engaging teeth (18) and at least two groups of recesses (15) adapted to the convex portion (16); a cavity is provided inside the transport joint (10); a clamping rod (43) is clamped in the cavity away from the movable tooth end; the transport joint (10) is also provided with a tooth block contact surface (24) adapted to the bite portion and a mounting interface (251) for connecting with the pushed object.

6. The interlocking linear push rack according to claim 1, characterized in that: The carrying joint (10) and the flexible pushing rack assembly (11) are both made of engineering plastics.

7. The interlocking linear push rack according to claim 1, characterized in that: The reset components include: A support plate (40), the support plate (40) is connected to the end of the side mounting plate (26) away from the fixed housing (27), the adjustment rod (30) is arranged near the end of the flip rod (42) through the support plate (40), and the flip rod (42) is connected to the end of the telescopic rod (28) near the auxiliary gear (29); A return spring (41) is sleeved on the adjustment rod (30) and is disposed between the rotating block (35) and the support plate (40). When the return spring (41) contracts, the rotating block (35) passes through the support plate (40).

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