Chain supporting trolley

Abstract

The utility model belongs to the technical field of chain supporting trolleys, and particularly relates to a chain supporting trolley which comprises a chain supporting trolley body and further comprises two first rotating grooves, the two first rotating grooves are formed in the chain supporting trolley body and communicated with the outside, and two through grooves communicated with the outside are formed in the inner walls of the two first rotating grooves respectively. Two rotating rods are rotationally connected into the two first rotating grooves correspondingly, and two rollers are arranged at the two ends of each rotating rod correspondingly. The plurality of first slots are respectively formed in the plurality of rollers and are communicated with the outside; the chain support trolley solves the problems that a chain support trolley cannot adapt to tracks with different widths, the whole trolley or wheels need to be replaced, and the application range and flexibility of the trolley are reduced, and solves the problem that when one wheel on the chain support trolley is damaged, a user cannot quickly detach the damaged wheel for replacement.

Description

TECHNICAL FIELD

[0001] The utility model belongs to chain support trolley technical field especially relates to a chain support trolley. BACKGROUND

[0002] Chain support trolley is a kind of equipment widely used in assembly line or conveying system, especially in heavy industry such as automobile manufacturing, it is mainly composed of chain, support trolley and related transmission device, can run on ground track or underground track, complete material transportation and assembly work.

[0003] Traditional chain support trolley when using, the spacing between the roller on the chain support trolley cannot be adjusted, leading to chain support trolley cannot adapt to the track of different width, need to replace the whole trolley or wheel, reduce the application range and flexibility of trolley, and when one of the wheels on the chain support trolley is damaged, user cannot quickly disassemble the damaged wheel and replace it, in view of this, we provide a kind of chain support trolley. UTILITY MODEL CONTENTS

[0004] The utility model is to provide a kind of chain support trolley, to solve the problem raised in the above background technology.

[0005] Therefore, the utility model provides a kind of chain support trolley, including chain support trolley body, further including:

[0006] Two first rotating grooves, two first rotating grooves are opened in chain support trolley body and are communicated with outside, two first rotating grooves are respectively provided with two communicating grooves communicated with outside on the inner wall, two rotating rods are respectively connected in two first rotating grooves, and two rollers are respectively arranged at the two ends of rotating rod;

[0007] A plurality of first insertion slots, a plurality of first insertion slots are respectively opened in a plurality of rollers and are communicated with outside;

[0008] A plurality of first sliding grooves, a plurality of first sliding grooves are respectively opened at the two ends of two rotating rods and are respectively communicated with a plurality of first insertion slots, a first insertion rod is slidably connected in the first sliding groove, one end of first insertion rod extends into first insertion slot and is inserted and matched with first insertion slot, a threaded rod is screwedly connected in first insertion rod, and two insertion holes are respectively arranged at the two sides of first insertion rod;

[0009] A plurality of fixing assemblies, a plurality of fixing assemblies are respectively located in a plurality of rollers, and are used for respectively fixing one end of a plurality of first insertion rods;

[0010] Two driving assemblies, two driving assemblies are respectively located in two rotating rods, and are used for respectively driving two corresponding threaded rods to rotate.

[0011] Based on the above structure, by setting the first rotating groove and the rotating rod, it ensures that the rotating rod can rotate in the first rotating groove, by setting the roller, the first sliding groove and the first inserting rod, it ensures that the first inserting rod can drive the roller to move along the first sliding groove, by setting the driving assembly and the threaded rod, it ensures that the user can drive the two threaded rods to rotate through the driving assembly, so that the two first inserting rods are away from each other under the action of the threads of the two threaded rods, and drive the two rollers to move away from each other, by setting the first inserting groove and the first inserting rod, it ensures that one end of the first inserting rod can be inserted into the first inserting groove, by setting the fixing assembly and the insertion hole, it ensures that the user can fix the roller on one end of the first inserting rod through the fixing assembly and the two insertion holes.

[0012] In the above technical solution, further, the fixing assembly comprises:

[0013] Two second sliding grooves, two second sliding grooves are opened in the roller and are in communication with the first inserting groove, two second inserting rods are slidably connected in the two second sliding grooves, and one end of each of the two second inserting rods extends into the two insertion holes and is insertedly connected with the two insertion holes, respectively, a spring is fixedly connected to the second inserting rod and is fixed to the inner wall of the second sliding groove;

[0014] A second rotating groove is opened in the roller and is in communication with the two second sliding grooves, a rotating disc is rotatably connected in the second rotating groove, two extrusion grooves are opened in the rotating disc, two transmission blocks are slidably connected in the two extrusion grooves, one end of each of the two transmission blocks extends into the two second sliding grooves and is fixed to the two second inserting rods, respectively, a second inserting groove is opened in the rotating disc, a second inserting block is inserted in the second inserting groove, one end of the second inserting block penetrates through the inner wall of the second rotating groove and extends to the outside to be insertedly connected with the roller.

[0015] In the present technical solution, it ensures that the user can quickly replace the damaged roller.

[0016] In the above technical solution, further, one end of the transmission block is slidably connected with the second sliding groove.

[0017] In the present technical solution, it ensures that one end of the transmission block can normally slide in the second sliding groove.

[0018] In the above technical solution, further, the extrusion groove is inclined.

[0019] In the present technical solution, it ensures that when the rotating disc rotates, the rotating disc can extrude the two transmission blocks through the two extrusion grooves, so that the two transmission blocks can move close to each other.

[0020] In the above technical solution, further, the driving assembly comprises:

[0021] Gear groove, the gear groove is opened in the rotating rod and is connected with two first sliding grooves, two first bevel gears are rotatably connected in the gear groove, and one end of the two first bevel gears extends into the two first sliding grooves respectively and is fixed with one end of the two threaded rods respectively, a second bevel gear is engaged between the two first bevel gears, and the second bevel gear is located in the gear groove and is rotatably connected with the gear groove, a rotating block is fixedly connected on the second bevel gear, and the rotating block is located in the gear groove and is rotatably connected with the gear groove, a third insertion slot is formed in the top end of the rotating block, a first insertion block is inserted into the third insertion slot, and the first insertion block extends to the outside through the gear groove and the through slot and is inserted into the through slot.

[0022] In the technical solution, the user can adjust the spacing between the multiple rollers according to the needs.

[0023] In the above technical solution, further, one end of the first bevel gear is rotatably connected with the first sliding groove.

[0024] In the technical solution, one end of the first bevel gear can normally rotate in the first sliding groove.

[0025] In the above technical solution, further, the threads on the two threaded rods are opposite in direction.

[0026] In the technical solution, when the two threaded rods rotate, the two first insertion rods are close to or away from each other under the action of the threads of the two threaded rods.

[0027] The beneficial effects of the utility model are:

[0028] 1. The chain supporting trolley, through the first rotating groove and the rotating rod, the rotating rod can rotate in the first rotating groove, through the roller, the first sliding groove and the first insertion rod, the first insertion rod can drive the roller to move along the first sliding groove, through the driving assembly and the threaded rod, the user can drive the two threaded rods to rotate through the driving assembly, the two first insertion rods are away from each other under the action of the threads of the two threaded rods, and the two rollers are driven to move away from each other, the chain supporting trolley cannot adapt to different width tracks, the whole trolley or wheel needs to be replaced, the application range and flexibility of the trolley are reduced.

[0029] 2. The chain supporting trolley, through the first insertion groove and the first insertion rod, one end of the first insertion rod can be inserted into the first insertion groove, through the fixing assembly and the insertion hole, the user can fix the roller on one end of the first insertion rod through the fixing assembly and the two insertion holes, when one of the wheels of the chain supporting trolley is damaged, the user cannot quickly disassemble and replace the damaged wheel. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is the whole structure schematic view of the utility model;

[0031] Figure 2 It is the explosion structure schematic view of the utility model area;

[0032] Figure 3 It is the explosion structure schematic view of the utility model part;

[0033] Figure 4 It is the internal structure schematic view of the utility model roller;

[0034] Figure 5 It is the internal structure schematic view of the utility model rotating rod one;

[0035] Figure 6 It is the internal structure schematic view of the utility model rotating rod two.

[0036] The mark in the figure shows that:

[0037] 1, chain support trolley body;2, first rotating groove;3, through groove;4, rotating rod;5, roller;6, first insertion slot;7, first sliding groove;8, first insertion rod;9, threaded rod;10, insertion hole;11, second sliding groove;12, second insertion rod;13, spring;14, second rotating groove;15, rotating disc;16, extrusion groove;17, transmission block;18, second insertion slot;19, gear groove;20, first bevel gear;21, second bevel gear;22, rotating block;23, third insertion slot;24, first insertion block;25, second insertion block. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0039] In the description of the present application, it should be noted that the terms used herein are merely for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. For the purpose of description, the sizes of the respective portions shown in the drawings are not drawn in accordance with the actual proportional relationship. The techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0040] It should be noted that the terms "first", "second", and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a particular order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally a class, not limited to the number of objects, for example, the first object can be one or more. In addition, the specification and claims "and / or" indicate at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are an "or" relationship.

[0041] It should be noted that in the description of the present application, the orientation or position relationship indicated by the orientation terms such as "front, rear, upper, lower, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" is generally based on the orientation or position relationship shown in the drawings, only for the purpose of describing the present application and simplifying the description, without the opposite indication, these orientation terms do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the scope of protection of the present application; the orientation terms "inner, outer" refer to the inner and outer relative to the contour of each component.

[0042] It should be noted that in the present application, the terms "comprising", "containing" or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, an element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element. In addition, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in reverse order, for example, the described method can be performed in an order different from that described, and various steps can be added, omitted, or combined. In addition, features described with reference to certain examples can be combined in other examples.

[0043] Embodiment 1:

[0044] Please refer to Figure 1 - Figure 6 As shown in the figure, the embodiment provides a chain support trolley, which comprises a chain support trolley body 1, further comprising:

[0045] Two first rotating grooves 2 are opened in the chain support trolley body 1 and are connected to the outside, two through grooves 3 are respectively opened on the inner walls of the two first rotating grooves 2 and are connected to the outside, two rotating rods 4 are respectively rotatably connected in the two first rotating grooves 2, and two roller wheels 5 are respectively arranged at the two ends of the rotating rod 4;

[0046] A plurality of first insertion grooves 6 are respectively opened in the plurality of roller wheels 5 and are connected to the outside;

[0047] A plurality of first sliding grooves 7 are respectively opened at the two ends of the two rotating rods 4 and are respectively connected to the plurality of first insertion grooves 6, a first insertion rod 8 is slidably connected in the first sliding groove 7, one end of the first insertion rod 8 extends into the first insertion groove 6 and is inserted and matched with the first insertion groove 6, a threaded rod 9 is threadedly connected in the first insertion rod 8, and two insertion holes 10 are respectively opened at the two sides of the first insertion rod 8;

[0048] A plurality of fixing assemblies are respectively located in the plurality of roller wheels 5 and are used for respectively fixing one end of the plurality of first insertion rods 8;

[0049] Two driving assemblies are respectively located in the two rotating rods 4 and are used for respectively driving the corresponding two threaded rods 9 to rotate.

[0050] Embodiment 2:

[0051] The chain supporting trolley provided in the embodiment has the following technical features in addition to the technical solutions in the above embodiments: the fixing assembly comprises

[0052] Two second sliding grooves 11 are formed in the roller 5 and communicate with the first insertion groove 6, two second insertion rods 12 are respectively and slidably connected in the two second sliding grooves 11, one end of each of the two second insertion rods 12 extends into the two insertion holes 10 and is respectively and insertingly connected with the two insertion holes 10, and a spring 13 fixedly connected with the inner wall of the second sliding groove 11 is fixedly connected with the second insertion rod 12.

[0053] A second rotating groove 14 is formed in the roller 5 and communicates with the two second sliding grooves 11, a rotating disc 15 is rotatably connected in the second rotating groove 14, two extrusion grooves 16 are formed in the rotating disc 15, two transmission blocks 17 are respectively and slidably connected in the two extrusion grooves 16, one end of each of the two transmission blocks 17 extends into the two second sliding grooves 11 and is respectively fixed with the two second insertion rods 12, a second insertion groove 18 is formed in the rotating disc 15, and a second insertion block 25 is insertingly connected in the second insertion groove 18, one end of the second insertion block 25 penetrates through the inner wall of the second rotating groove 14 and extends to the outside to be insertingly connected with the roller 5.

[0054] When one of the rollers 5 is damaged during long-time use, the user rotates the second insertion block 25 by hand, drives the rotating disc 15 to rotate in the second rotating groove 14 through the second insertion groove 18, makes the rotating disc 15 extrude the two transmission blocks 17 through the two extrusion grooves 16, respectively drives the two second insertion rods 12 to move in the two second sliding grooves 11 through one end of each of the two transmission blocks 17, respectively makes one end of each of the two second insertion rods 12 enter the two second sliding grooves 11 from the two insertion holes 10 and compresses the two springs 13, at this time, the fixation of the first insertion rod 8 is released, then the user takes out the roller 5 from one end of the first insertion rod 8 by hand and replaces it, after the replacement is completed, the user inserts the roller 5 into one end of the first insertion rod 8 by hand, inserts one end of the first insertion rod 8 into the first insertion groove 6, then releases the hand rotating the second insertion block 25, respectively extends one end of each of the two second insertion rods 12 to the two second sliding grooves 11 and inserts one end of each of the two second insertion rods 12 into the two insertion holes 10, at this time, the roller 5 is fixed on one end of the first insertion rod 8 and cannot move, which ensures that the user can quickly replace the damaged roller 5, then the user takes out the second insertion block 25 from the second insertion groove 18 and moves the second insertion block 25 from the second rotating groove 14 to the outside.

[0055] Embodiment 3

[0056] The chain supporting trolley provided in the embodiment has the following technical features in addition to the technical solutions in the above embodiments: one end of the transmission block 17 is slidably connected with the second sliding groove 11.

[0057] Wherein, ensure that the end of the transmission block 17 in the second chute 11 can be normal sliding.

[0058] Embodiment 4:

[0059] The embodiment provides a chain supporting trolley, in addition to comprising the technical scheme of the above embodiment, still has the following technical features, the extrusion groove 16 is inclinedly arranged.

[0060] Wherein, ensure that when the rotating disc 15 rotates, the rotating disc 15 can be extruded by two extrusion grooves 16 respectively two transmission blocks 17, so that two transmission blocks 17 can be close to each other.

[0061] Embodiment 5:

[0062] The embodiment provides a chain supporting trolley, in addition to comprising the technical scheme of the above embodiment, still has the following technical features, the drive assembly comprises:

[0063] Gear groove 19, gear groove 19 is opened in the rotating rod 4 and is connected with two first chutes 7, two first bevel gears 20 are rotatably connected in the gear groove 19, and one end of the two first bevel gears 20 extends into the two first chutes 7 respectively, and is fixed with one end of the two threaded rods 9 respectively, the second bevel gear 21 is engaged between the two first bevel gears 20, and the second bevel gear 21 is located in the gear groove 19 and is rotatably connected with the gear groove 19, the rotating block 22 is fixedly connected on the second bevel gear 21, and the rotating block 22 is located in the gear groove 19 and is rotatably connected with the gear groove 19, the top end of the rotating block 22 is provided with the third insertion slot 23, the first insertion block 24 is inserted in the third insertion slot 23, and the top end of the first insertion block 24 extends to the outside and is inserted into the through slot 3 through the gear groove 19 and the through slot 3.

[0064] Wherein, in use, the user rotates the first insertion block 24 by hand, so that the first insertion block 24 drives the rotating block 22 to rotate in the gear groove 19 through the third insertion slot 23, so that the rotating block 22 drives the second bevel gear 21 to rotate in the gear groove 19, when the second bevel gear 21 rotates, the second bevel gear 21 will drive the two first bevel gears 20 to rotate in the gear groove 19, so that the two first bevel gears 20 drive the two threaded rods 9 to rotate respectively, when the two threaded rods 9 rotate, the two first insertion rods 8 will be far away from each other under the action of the threads of the two threaded rods 9 respectively, when the two first insertion rods 8 are far away from each other, the two first insertion rods 8 will drive the two rollers 5 to be far away from each other respectively, when the two rotating rods 4 are far away from each other to the appropriate position, the user extracts one end of the first insertion block 24 from the third insertion slot 23 by hand, so that the first insertion block 24 moves to the outside from the gear groove 19 and the through slot 3, to ensure that the user can adjust the distance between the multiple rollers 5 according to the needs.

[0065] Embodiment 6:

[0066] The chain supporting trolley provided in the embodiment has the following technical features in addition to the technical solutions in the above embodiments: one end of the first bevel gear 20 is rotatably connected with the first sliding groove 7.

[0067] The first bevel gear 20 can rotate normally in the first sliding groove 7.

[0068] Embodiment 7:

[0069] The chain supporting trolley provided in the embodiment has the following technical features in addition to the technical solutions in the above embodiments: the screw threads on the two threaded rods 9 are opposite in rotation direction.

[0070] When the two threaded rods 9 rotate, the two first inserting rods 8 will move closer to or farther away from each other under the action of the screw threads on the two threaded rods 9.

[0071] In use, the user rotates the first inserting block 24 by hand, so that the first inserting block 24 drives the rotating block 22 to rotate in the gear groove 19 through the third inserting groove 23, and the rotating block 22 drives the second bevel gear 21 to rotate in the gear groove 19, when the second bevel gear 21 rotates, the second bevel gear 21 drives the two first bevel gears 20 to rotate in the gear groove 19, so that the two first bevel gears 20 drive the two threaded rods 9 to rotate, respectively, when the two threaded rods 9 rotate, the two first inserting rods 8 will move away from each other under the action of the screw threads on the two threaded rods 9, when the two first inserting rods 8 move away from each other, the two first inserting rods 8 will drive the two rollers 5 to move away from each other, respectively, when the two rotating rods 4 move away from each other to the appropriate position, the user pulls one end of the first inserting block 24 out of the third inserting groove 23 by hand, so that the first inserting block 24 moves from the gear groove 19 and the through groove 3 to the outside, ensuring that the user can adjust the distance between the multiple rollers 5 according to the needs;

[0072] When one of the rollers 5 is damaged during long-term use, the user rotates the second plug block 25 by hand, so that the second plug block 25 drives the rotating disc 15 to rotate in the second rotating groove 14 through the second rotating slot 18, so that the rotating disc 15 extrudes the two transmission blocks 17 through the two extrusion grooves 16, respectively, so that one end of the two transmission blocks 17 drives the two second plug rods 12 to move in the two second sliding grooves 11, respectively, so that one end of the two second plug rods 12 enters the two second sliding grooves 11 from the two plug holes 10, respectively, and compresses the two springs 13, respectively. At this time, the fixation of the first plug rod 8 is released, then the user pulls out the roller 5 from one end of the first plug rod 8 by hand and replaces it, after the replacement is completed, the user inserts the roller 5 into one end of the first plug rod 8, so that one end of the first plug rod 8 is inserted into the first plug groove 6, then the hand rotating the second plug block 25 is loosened, so that one end of the two second plug rods 12 extends into the two second sliding grooves 11 and is inserted into the two plug holes 10, respectively. At this time, the roller 5 will be fixed on one end of the first plug rod 8 and cannot move, ensuring that the user can quickly replace the damaged roller 5, then the user pulls out the second plug block 25 from the second plug groove 18, so that the second plug block 25 moves from the second rotating groove 14 to the outside.

[0073] The embodiments of the present application are described above in combination with the drawings, the embodiments and the features in the embodiments in the present application can be combined with each other without conflict, the present application is not limited to the above-mentioned specific embodiments, the above-mentioned specific embodiments are only illustrative, not restrictive, and those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the protection scope of the claims, all of which belong to the protection of the present application.

Claims

1. A chain support trolley comprising a chain support trolley body (1), characterized in that, Also include: Two first rotating grooves (2), two said first rotating grooves (2) are opened in the chain support trolley body (1) and are connected with the outside, two said first rotating grooves (2) are respectively provided with two through grooves (3) connected with the outside on the inner wall, two said first rotating grooves (2) are respectively rotatably connected with two rotating rods (4), two ends of the rotating rod (4) are respectively provided with two rollers (5); A plurality of first insertion slots (6), a plurality of said first insertion slots (6) are respectively provided in a plurality of rollers (5) and are connected with the outside; A plurality of first sliding grooves (7), a plurality of said first sliding grooves (7) are respectively provided at two ends of two rotating rods (4) and are respectively connected with a plurality of first insertion slots (6), a first insertion rod (8) is slidably connected in the first sliding groove (7), one end of the first insertion rod (8) extends into the first insertion slot (6) and is inserted and matched with the first insertion slot (6), a threaded rod (9) is threadedly connected in the first insertion rod (8), two insertion holes (10) are respectively provided on the two sides of the first insertion rod (8); A plurality of fixing assemblies, a plurality of said fixing assemblies are respectively located in a plurality of rollers (5), and are used for respectively fixing one end of a plurality of first insertion rods (8); Two drive assemblies, two said drive assemblies are respectively located in two rotating rods (4), and are used for respectively driving two corresponding threaded rods (9) to rotate.

2. A chain support trolley according to claim 1, characterised in that Said fixing assembly comprises: Two second sliding grooves (11), two said second sliding grooves (11) are provided in the roller (5) and are connected with the first insertion slot (6), two second insertion rods (12) are respectively slidably connected in two said second sliding grooves (11), one end of the two second insertion rods (12) respectively extends into two insertion holes (10) and is respectively inserted and matched with two insertion holes (10), a spring (13) fixedly connected with the inner wall of the second sliding groove (11) is fixedly connected on the second insertion rod (12); Second rotating groove (14), the second rotating groove (14) is provided in the roller (5) and is connected with two second sliding grooves (11), a turntable (15) is rotatably connected in the second rotating groove (14), two extrusion grooves (16) are provided on the turntable (15), two transmission blocks (17) are respectively slidably connected in two said extrusion grooves (16), one end of the two transmission blocks (17) respectively extends into two second sliding grooves (11) and is respectively fixed with two second insertion rods (12), a second insertion slot (18) is provided on the turntable (15), a second insertion block (25) is inserted in the second insertion slot (18), one end of the second insertion block (25) penetrates the inner wall of the second rotating groove (14) and extends to the outside and is inserted and matched with the roller (5).

3. A chain support trolley according to claim 2, wherein, One end of the transmission block (17) is slidably connected with the second sliding groove (11).

4. A chain support trolley as claimed in claim 2, wherein, The extrusion groove (16) is inclinedly arranged.

5. A chain support trolley as claimed in claim 1, wherein, Said drive assembly comprises: Gear groove (19) is set up in the rotating rod (4) and links with two first sliding groove (7), the gear groove (19) is rotatably connected with two first bevel gears (20), and one end of two first bevel gears (20) extends to two first sliding groove (7) respectively, and is fixed with one end of two threaded rods (9) respectively, two the first bevel gear (20) is engaged with second bevel gear (21), and second bevel gear (21) is located in the gear groove (19) and is rotatably connected with gear groove (19), the second bevel gear (21) is fixedly connected with rotating block (22), and rotating block (22) is located in the gear groove (19) and is rotatably connected with gear groove (19), the top of rotating block (22) is provided with third slot (23), the third slot (23) is inserted with first plug-in block (24), and the top of first plug-in block (24) passes through gear groove (19) and through slot (3) and extends to the outside and is inserted with through slot (3) cooperation.

6. A chain support trolley according to claim 5, wherein, One end of the first bevel gear (20) is rotatably connected with the first sliding groove (7).

7. A chain support trolley as claimed in claim 1, wherein, The screw thread direction of two threaded rods (9) is opposite.

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