Modularized carrier roller support with adjustable bandwidth

Abstract

The invention belongs to the technical field of conveying equipment, and discloses a bandwidth-adjustable modular carrier roller support which comprises a base and further comprises a first roller frame, a second roller frame, a third roller frame and a fourth roller frame. The supporting mechanism is arranged outside the base through a connecting mechanism; the second roller frame is arranged on the outer wall of the supporting mechanism; wherein the connecting mechanism comprises a connecting plate, and the inner wall of the connecting plate is slidably connected with a clamping block; the adjusting assembly comprises a shifting block, and the outer wall of the bottom end of the shifting block is fixedly connected with a trapezoidal block. The supporting mechanism comprises a stand column, and a supporting rod is hinged to the inner wall of the stand column. Through cooperation of the connecting plates, the clamping blocks and other structures, limiting of the connecting plates can be relieved by pulling the sliding rods, then the distance between the second roller frame and the first roller frame is adjusted, carrier rollers of different lengths are installed, and the carrier roller mounting device is flexible, high in adaptability and easy to operate.

Description

Technical Field

[0001] The present invention belongs to the technical field of conveying equipment, and specifically relates to a bandwidth-adjustable modular idler bracket. Background Art

[0002] An idler bracket is a device used to support and fix idlers. It is usually made of metal materials and is widely used in conveying equipment such as belt conveyors. It plays an important role in bearing the weight of the conveyor belt and the materials thereon, keeping the idler position accurate, and ensuring the smooth operation of the conveyor belt. It can effectively reduce the wear of the conveyor belt, improve the conveying efficiency, and reduce the incidence of equipment failures, and has an indispensable position in the fields of industrial production and logistics transportation.

[0003] Due to the different widths of conveyor belts, the idler bracket needs to correspondingly adjust its overall width to install idlers of different lengths and adapt to the corresponding conveyor belts. In some existing technologies, the method of adjusting the width of the idler bracket is relatively troublesome. After retrieval, for example, the bandwidth-adjustable modular idler bracket disclosed in the publication number CN222006392U needs to rotate the threaded rod multiple times to adjust the idler support column, which is relatively troublesome, time-consuming and laborious. Therefore, in view of the above problems, a bandwidth-adjustable modular idler bracket is proposed. Summary of the Invention

[0004] To solve the problems raised in the above background art, the present invention provides a bandwidth-adjustable modular idler bracket.

[0005] To achieve the above object, the present invention provides the following technical solution: A bandwidth-adjustable modular idler bracket, including a base, and further including:

[0006] A first idler frame, which is arranged in the inner wall of the base through an adjusting assembly;

[0007] A support mechanism, which is arranged outside the base through a connecting mechanism;

[0008] A second idler frame, which is arranged on the outer wall of the support mechanism;

[0009] Among them, the connecting mechanism includes a connecting plate, and a clamping block is slidably connected to the inner wall of the connecting plate;

[0010] The adjusting assembly includes a dial block, and a trapezoidal block is fixedly connected to the outer wall of the bottom end of the dial block;

[0011] The support mechanism includes a column, and a support rod is hinged to the inner wall of the column.

[0012] Preferably, two groups of clamping blocks are provided, and the two groups of clamping blocks are elastically connected through a connecting spring. The outer wall of the clamping block is hinged with a sliding rod through a connecting rod, and a clamping groove is opened on the inner wall of the bottom end of the base.

[0013] Preferably, both ends of the connecting spring are fixedly connected to the outer walls of two groups of clamping blocks respectively, and the connecting plate is slidably connected to the inner wall of the base.

[0014] Preferably, one end of the connecting rod is hinged to the outer wall of the sliding rod, the other end of the connecting rod is hinged to the outer wall of the clamping block, and the clamping block is clamped with the clamping groove.

[0015] Preferably, the first roller frame is slidably connected in the inner wall of the base. An inserting block is elastically connected to the inner wall of the first roller frame through a telescopic spring. A short rod is slidably connected to the inner wall of the first roller frame, and a slot is formed in the inner wall of the top end of the base.

[0016] Preferably, one end of the telescopic spring is fixedly connected to the outer wall of the inserting block, the other end of the telescopic spring is fixedly connected to the inner wall of the first roller frame, the inserting block is slidably connected to the inner wall of the first roller frame, and the inserting block is clamped with the slot.

[0017] Preferably, one end of the short rod is fixedly connected to the outer wall of the inserting block, the other end of the short rod is slidably connected to the outer wall of the trapezoidal block, and both the dialing block and the trapezoidal block are slidably connected to the inner wall of the first roller frame.

[0018] Preferably, a sliding groove is formed in the outer wall of the column. A hinged rod is hinged to the outer wall of the support rod. A sliding rod is rotatably connected to the outer wall of the hinged rod. A slider is slidably connected to the outer wall of the column. A convex rod is elastically connected to the inner wall of the slider through a reset spring, and a groove is formed in the outer wall of the column.

[0019] Preferably, the column is fixedly connected to the outer wall of the connecting plate, the second roller frame is fixedly connected to the outer wall of the top end of the column, the sliding rod contacts the inner wall of the sliding groove, and the convex rod is clamped with the groove.

[0020] Preferably, one end of the reset spring is fixedly connected to the outer wall of the convex rod, the other end of the reset spring is fixedly connected to the inner wall of the slider, and the convex rod is slidably connected to the inner wall of the slider.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] By setting the cooperation of structures such as the connecting plate and the clamping blocks, the present invention drives the connecting rod to turn and moves the two groups of clamping blocks by pulling the sliding rod, so that the clamping blocks are separated from the contact with the clamping grooves, and the limit of the connecting plate can be released. The connecting plate can be moved in the inner wall of the base to adjust the position of the second roller frame of the support mechanism, and further adjust the distance between the second roller frame and the first roller frame to install idlers of different lengths, which is relatively flexible, has high adaptability and is easy to operate.

[0023] Through the cooperation of structures such as trapezoidal blocks and insertion blocks, when the dialing block is toggled, the insertion block can be driven by the trapezoidal block and the short rod to disengage from the insertion slot, releasing the limit of the first roller frame and moving it. Thus, the distance between the two first roller frames can be adjusted. Combined with the connection mechanism, according to the specific width of the conveyor belt, the first roller frame and the second roller frame can be conveniently and quickly moved and positioned without the need to adjust by rotating bolts or threaded rods multiple times, which is more time-saving and labor-saving and improves work efficiency.

[0024] Through the cooperation of structures such as support rods and sliders, when the convex rod is pulled and the slider is moved up and down, the hinged rod can be driven to flip with the support rod. When the support rod flips to the horizontal state, the column can be supported from two directions, thereby improving the support effect on the idler bracket, preventing the problem that the fixing bolts of the bracket may loosen and fall off due to long-term vibration and impact of the conveyor belt, resulting in the bracket toppling and affecting the normal use of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the main structure of the present invention;

[0026] Figure 2 is a schematic diagram of the decomposed structure of the base, the first roller frame and the connection mechanism of the present invention;

[0027] Figure 3 is a schematic diagram of the decomposed structure of the cross-section of the connecting plate and the base of the present invention;

[0028] Figure 4 For the present invention Figure 3 is an enlarged schematic diagram of part A in;

[0029] Figure 5 is a schematic diagram of the decomposed structure of the cross-section of the first roller frame and the base of the present invention;

[0030] Figure 6 is a schematic diagram of the decomposed structure of the cross-section of the column and the slider of the present invention.

[0031] In the figure: 1. Base; 2. Connection mechanism; 201. Connecting plate; 202. Sliding rod; 203. Connecting rod; 204. Clamping block; 205. Connecting spring; 206. Card slot; 3. First roller frame; 301. Dialing block; 302. Trapezoidal block; 303. Short rod; 304. Telescopic spring; 305. Insertion block; 306. Insertion slot; 4. Support mechanism; 401. Column; 402. Chute; 403. Groove; 404. Sliding rod; 405. Hinged rod; 406. Support rod; 407. Slider; 408. Return spring; 409. Convex rod; 5. Second roller frame. DETAILED DESCRIPTION OF THE INVENTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] As Figures 1 to 6 shown, the present invention provides a bandwidth adjustable modular idler bracket, including a base 1, and further including:

[0034] A first roller frame 3, and the first roller frame 3 is arranged in the inner wall of the base 1 through an adjusting component;

[0035] A supporting mechanism 4, and the supporting mechanism 4 is arranged outside the base 1 through a connecting mechanism 2;

[0036] A second roller frame 5, and the second roller frame 5 is arranged on the outer wall of the supporting mechanism 4;

[0037] Among them, the connecting mechanism 2 includes a connecting plate 201, and a clamping block 204 is slidably connected to the inner wall of the connecting plate 201;

[0038] The adjusting component includes a dial block 301, and a trapezoidal block 302 is fixedly connected to the outer wall of the bottom end of the dial block 301;

[0039] The supporting mechanism 4 includes a column 401, and a supporting rod 406 is hinged to the inner wall of the column 401.

[0040] Adopting the above scheme: The base 1 and the connecting mechanism 2 are telescopic structures. The connecting mechanism 2 can move horizontally in the inner wall of the base 1, and can drive the supporting mechanism 4 and the second roller frame 5 to move synchronously to adjust the distance between the second roller frame 5 and the first roller frame 3; The first roller frame 3 can also move in the inner wall of the base 1 and be fixed through the adjusting component to adjust the distance between the two first roller frames 3, and then, according to the specific width of the conveyor belt, idlers of appropriate length can be installed; The supporting mechanism 4 can be installed on the ground or the bottom frame of the conveyor belt, and can provide a better supporting and fixing effect for the whole idler bracket to prevent the bracket from tipping over and affecting the use of the conveyor belt.

[0041] As Figures 3 to 4 shown, there are two groups of clamping blocks 204. The two groups of clamping blocks 204 are elastically connected through a connecting spring 205. A sliding rod 202 is hinged to the outer wall of the clamping block 204 through a connecting rod 203, and a clamping groove 206 is opened in the bottom inner wall of the base 1.

[0042] Adopting the above solution: There are two sets of connecting mechanisms 2, symmetrically distributed on both sides of the base 1. In the normal state, due to its own elastic force, the connecting spring 205 makes the latch 204 in the ejected state, and it is clamped with the corresponding card slot 206 to fix the position of the connecting plate 201; there are multiple sets of card slots 206, and the connecting plate 201 can be fixed at multiple positions to adapt to conveyor belts of different widths.

[0043] As Figures 3 to 4 shown, both ends of the connecting spring 205 are fixedly connected to the outer walls of the two sets of latches 204 respectively, and the connecting plate 201 is slidably connected to the inner wall of the base 1; one end of the connecting rod 203 is hinged to the outer wall of the sliding rod 202, and the other end of the connecting rod 203 is hinged to the outer wall of the latch 204, and the latch 204 is clamped with the card slot 206.

[0044] Adopting the above solution: The sliding rod 202 is slidably connected to the inner wall of the connecting plate 201, and the top outer wall of the sliding rod 202 penetrates through the top outer wall of the connecting plate 201. The operator can move the sliding rod 202 to move it in the inner wall of the connecting plate 201; when the connecting plate 201 moves, it will drive the two sets of connecting rods 203 hinged to it to move and flip synchronously, driving the corresponding latches 204 to move; since the latch 204 is slidably connected to the inner wall of the connecting plate 201 and can only move linearly in the inner wall of the connecting plate 201, the latch 204 can be driven by the connecting rod 203 to move towards the middle at the same time, and the connecting spring 205 is compressed, so that the latch 204 is disengaged from the card slot 206, and the limit of the connecting plate 201 can be released and it can be moved to adjust the positions of the support mechanism 4 and the second roller frame 5; after adjusting to the appropriate position, the sliding rod 202 can be released, and under the elastic force of the connecting spring 205, the two sets of latches 204 move outward at the same time and are clamped with the corresponding card slots 206 to fix the connecting plate 201 again, conveniently and quickly completing the adjustment of the positions of the two second roller frames 5.

[0045] As Figure 5 shown, the first roller frame 3 is slidably connected in the inner wall of the base 1, the inner wall of the first roller frame 3 is elastically connected with an insertion block 305 through a telescopic spring 304, and a short rod 303 is slidably connected in the inner wall of the first roller frame 3. A slot 306 is opened in the top inner wall of the base 1.

[0046] Adopting the above solution: There are two sets of the first roller frames 3, symmetrically distributed in the top inner walls on both sides of the base 1, and it can move horizontally in the top inner wall of the base 1; there are two sets of both the insertion block 305 and the short rod 303, symmetrically distributed in the inner wall of the first roller frame 3. In the normal state, due to the elastic force of the telescopic spring 304, the insertion block 305 remains in the ejected state and is clamped with the corresponding slot 306, and the position of the first roller frame 3 can be fixed.

[0047] As Figure 5As shown, one end of the telescopic spring 304 is fixedly connected to the outer wall of the insertion block 305, and the other end of the telescopic spring 304 is fixedly connected to the inner wall of the first roller frame 3. The insertion block 305 is slidably connected to the inner wall of the first roller frame 3, and the insertion block 305 is snap-fitted with the slot 306; one end of the short rod 303 is fixedly connected to the outer wall of the insertion block 305, and the other end of the short rod 303 is slidably connected to the outer wall of the trapezoidal block 302. Both the dial block 301 and the trapezoidal block 302 are slidably connected to the inner wall of the first roller frame 3.

[0048] Adopting the above solution: through the adjustment component, the first roller frame 3 can be fixed at a specific position in the base 1; when not affected by external forces, the telescopic spring 304 drives the insertion block 305 to pop out, and the insertion block 305 drives the short rod 303 to be in a fixed state, and at this time the short rod 303 is in contact with the long-side inclined surface of the trapezoidal block 302; the dial block 301 penetrates through one side outer wall of the first roller frame 3, and the operator can move the dial block 301 downward to drive the trapezoidal block 302 to move downward synchronously, so that the short rod 303 moves along its inclined surface; since the short rod 303 can only move horizontally in the inner wall of the first roller frame 3, the two short rods 303 will drive the corresponding insertion blocks 305 to move towards the middle at the same time, compress the telescopic spring 304, and disengage from the slot 306, so that the limit of the first roller frame 3 can be released and it can be moved; when it is moved to the appropriate position, the insertion block 305 pops out under the elastic force of the telescopic spring 304 and is snap-fitted with the corresponding slot 306 again, so that the adjustment and fixation of the first roller frame 3 can be completed. The overall adjustment operation is relatively convenient and fast, and there is no need to adjust by repeatedly turning bolts or other complex methods, which greatly improves the operation efficiency.

[0049] As Figure 6 As shown, a chute 402 is provided on the outer wall of the column 401. A hinge rod 405 is hinged to the outer wall of the support rod 406. A sliding rod 404 is rotatably connected to the outer wall of the hinge rod 405. A slider 407 is slidably connected to the outer wall of the column 401. A convex rod 409 is elastically connected to the inner wall of the slider 407 through a return spring 408. A groove 403 is provided on the outer wall of the column 401.

[0050] Adopting the above solution: The sliding grooves 402 are symmetrically arranged on the outer walls on both sides of the column 401. Two groups of grooves 403 are provided, distributed on the upper and lower outer walls of the column 401 and located between the two groups of sliding grooves 402. The slider 407 can move on the outer wall of the column 401, and the sliding rod 404 is fixedly connected to the outer wall of the slider 407. The convex rod 409 in the slider 407 remains in the ejected state due to the elastic force of the return spring 408 without being affected by external forces and is engaged with the groove 403 to fix the position of the slider 407, so that the slider 407 can be fixed in the upper or lower position. The support rod 406 can rotate in the inner wall of the column 401, and it can be rotated to the vertical state and retracted into the inner wall of the column 401, or it can be rotated to the horizontal state and contact the ground or the bottom frame of the conveyor belt. In this state, since two groups of support rods 406 are symmetrically arranged, the column 401 can be supported from two directions, thereby improving the auxiliary support effect on the overall idler bracket, avoiding the problem that the fixed bolts of the idler bracket may become loose under the long-term vibration and impact of the conveyor belt, and the stability decreases and it is easy to tip over.

[0051] As Figure 6 shown, the column 401 is fixedly connected to the outer wall of the connecting plate 201, the second roller frame 5 is fixedly connected to the outer wall of the top of the column 401, the sliding rod 404 contacts the inner wall of the sliding groove 402, and the convex rod 409 is engaged with the groove 403; one end of the return spring 408 is fixedly connected to the outer wall of the convex rod 409, the other end of the return spring 408 is fixedly connected to the inner wall of the slider 407, and the convex rod 409 is slidably connected to the inner wall of the slider 407.

[0052] Adopting the above solution: An inclined idler can be fixed between the second roller frame 5 and the first roller frame 3, and a horizontal idler can be fixed between the two first roller frames 3; when pulling the convex rod 409, it moves outwards and compresses the return spring 408, disengaging from a group of grooves 403, and the limit of the slider 407 can be released to move it up and down; when the slider 407 moves downwards, it will drive the sliding rod 404 to move downwards synchronously, and the sliding rod 404 drives one end of the articulated rod 405 to move downwards, and the end of the articulated rod 405 connected to the support rod 406 will flip outwards, driving the support rod 406 to flip outwards; when the slider 407 moves to a position where the convex rod 409 corresponds to the lower group of grooves 403, the support rod 406 is in the horizontal state, as Figure 2 shown. At this time, the return spring 408 can drive the convex rod 409 to pop out and be engaged with the lower groove 403 to fix the position of the slider 407, thereby fixing the positions of the support rod 406 and the articulated rod 405; similarly, when the slider 407 moves upwards, the support rod 406 can be driven to flip upwards through the articulated rod 405 and retracted into the inner wall of the column 401, as Figure 1 shown, and then the entire support mechanism 4 is retracted, reducing the occupied space and being more convenient to place during transportation and carrying.

[0053] The working principle and use process of the present invention:

[0054] The columns of the support mechanism 4 are installed on the ground or the bottom frame of the conveyor belt by bolts to provide support and fixation for the roller bracket as a whole; then, the positions of the roller frame 2 5 and the roller frame 1 3 are adjusted according to the specific width of the conveyor belt.

[0055] The operator can push the sliding rod 202, and the movement of the sliding rod 202 drives the connecting rod 203 hinged thereto to move synchronously and flip over, and the connecting rod 203 drives the clamping block 204 to move toward the middle at the same time, compressing the connecting spring 205, so that the clamping block 204 is out of contact with the clamping groove 206, and the limit of the connecting plate 201 is released, so that the connecting mechanism 2 can be moved, driving the supporting mechanism 4 and the roller frame 2 5 to move synchronously, and adjusting the distance between the roller frame 2 5 and the roller frame 1 3.

[0056] After adjusting to a suitable position, the sliding rod 202 is released, and under the elastic force of the connecting spring 205, the two groups of clamping blocks 204 move outward at the same time and engage with the corresponding clamping grooves 206 to fix the connecting plate 201 again.

[0057] Then the shifting block 301 can be pushed downward to drive the trapezoidal block 302 to move downward synchronously. The movement of the trapezoidal block 302 causes the short rod 303 to move along its inclined surface, driving the two groups of plug blocks 305 to move toward the middle at the same time, compressing the telescopic spring 304 and disengaging from the slot 306, releasing the limit of the roller frame 3, and then moving the roller frame 3 to adjust the distance between the two groups of roller frames 3.

[0058] When it moves to the appropriate position, the plug block 305 pops out under the elastic force of the telescopic spring 304 and engages with the corresponding slot 306 again, completing the adjustment and fixation of the roller frame 3; the above adjustment process is relatively convenient and quick, and does not require adjustment by turning bolts or other operations. The positions of the roller frame 3 and the roller frame 2 5 can be quickly moved and positioned, saving time and effort and improving work efficiency.

[0059] After adjusting the positions of roller frame 1 3 and roller frame 2 5 according to the width of the conveyor belt, the protruding rod 409 can be pulled to move outward and compress the reset spring 408, so as to disengage from the groove 403 above, release the limit of the slider 407, and then move the slider 407 downward, driving the sliding rod 404 to move downward synchronously. The sliding rod 404 drives one end of the hinged rod 405 to move downward, and the end of the hinged rod 405 connected to the support rod 406 is flipped outward, driving the support rod 406 to flip outward.

[0060] When the slider 407 moves to a position where the convex rod 409 corresponds to the lower groove 403, the support rod 406 is in a horizontal state. The return spring 408 drives the convex rod 409 to pop out and engage with the lower groove 403, fixing the positions of the support rod 406 and the hinge rod 405. The two groups of support rods 406 can support the column 401 from two opposite directions, improving the auxiliary support effect on the overall idler bracket, and thus avoiding the risk that the bolts fixing the idler bracket may become loose or fall off due to long-term vibration or impact of the conveyor belt, resulting in the tipping of the idler bracket and affecting the normal use of the conveyor belt.

[0061] Moreover, when transporting the idler bracket, the support mechanism 4 can be retracted. By moving the slider 407 upward, the hinge rod 405 drives the support rod 406 to flip upward and retract into the inner wall of the column 401, so that the support rod 406 and the hinge rod 405 can be retracted into the inner wall of the column 401, reducing the occupied space and facilitating transportation and carrying.

[0062] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0063] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A modular roller support with adjustable bandwidth, comprising a base (1), characterized in that: Also includes: A roller frame (3), wherein the roller frame (3) is arranged in the inner wall of the base (1) through an adjustment component; A supporting mechanism (4), wherein the supporting mechanism (4) is arranged outside the base (1) via a connecting mechanism (2); A second roller frame (5), wherein the second roller frame (5) is arranged on the outer wall of the supporting mechanism (4); Wherein, the connection mechanism (2) comprises a connection plate (201), and a clamping block (204) is slidably connected to the inner wall of the connection plate (201); The adjustment assembly comprises a shifting block (301), and a trapezoidal block (302) is fixedly connected to the outer wall of the bottom end of the shifting block (301); The support mechanism (4) comprises a column (401), and a support rod (406) is hingedly connected to the inner wall of the column (401).

2. The bandwidth adjustable modular roller support according to claim 1, characterized in that: The clamping blocks (204) are provided in two groups, and the two groups of clamping blocks (204) are elastically connected via a connecting spring (205); the outer wall of the clamping block (204) is hingedly connected to a sliding rod (202) via a connecting rod (203); and a clamping groove (206) is provided on the inner wall of the bottom end of the base (1).

3. The bandwidth adjustable modular roller support according to claim 2, characterized in that: The two ends of the connection spring (205) are respectively fixedly connected to the outer walls of the two groups of clamping blocks (204), and the connection plate (201) is slidably connected to the inner wall of the base (1).

4. The bandwidth adjustable modular roller support according to claim 2, characterized in that: One end of the connecting rod (203) is hinged to the outer wall of the sliding rod (202), and the other end of the connecting rod (203) is hinged to the outer wall of the clamping block (204), and the clamping block (204) is clamped to the clamping slot (206).

5. The bandwidth adjustable modular roller support according to claim 1, characterized in that: The roller frame (3) is slidably connected to the inner wall of the base (1); the inner wall of the roller frame (3) is elastically connected to an insert block (305) via a telescopic spring (304); the inner wall of the roller frame (3) is slidably connected to a short rod (303); and a slot (306) is provided on the inner wall at the top end of the base (1).

6. The bandwidth adjustable modular roller support according to claim 5, characterized in that: One end of the telescopic spring (304) is fixedly connected to the outer wall of the insert block (305), the other end of the telescopic spring (304) is fixedly connected to the inner wall of the roller frame (3), the insert block (305) is slidably connected to the inner wall of the roller frame (3), and the insert block (305) is snap-fitted to the slot (306).

7. The bandwidth adjustable modular roller support according to claim 5, characterized in that: One end of the short rod (303) is fixedly connected to the outer wall of the insert block (305), and the other end of the short rod (303) is slidably connected to the outer wall of the trapezoidal block (302). The shifting block (301) and the trapezoidal block (302) are both slidably connected to the inner wall of the roller frame (3).

8. The bandwidth adjustable modular roller support according to claim 1, characterized in that: The outer wall of the column (401) is provided with a sliding groove (402), the outer wall of the support rod (406) is hinged with a hinge rod (405), the outer wall of the hinge rod (405) is rotatably connected with a sliding rod (404), the outer wall of the column (401) is slidably connected with a slider (407), the inner wall of the slider (407) is elastically connected with a protruding rod (409) via a return spring (408), and the outer wall of the column (401) is provided with a groove (403).

9. The bandwidth adjustable modular roller support according to claim 8, characterized in that: The column (401) is fixedly connected to the outer wall of the connecting plate (201), the second roller frame (5) is fixedly connected to the outer wall of the top end of the column (401), the sliding rod (404) contacts the inner wall of the sliding groove (402), and the protruding rod (409) is clamped with the groove (403).

10. The bandwidth adjustable modular roller support according to claim 8, characterized in that: One end of the return spring (408) is fixedly connected to the outer wall of the protruding rod (409), the other end of the return spring (408) is fixedly connected to the inner wall of the sliding block (407), and the protruding rod (409) is slidably connected to the inner wall of the sliding block (407).

Images