Strip-shaped puffed food cutting device

Abstract

The utility model relates to the technical field of food processing, and discloses a strip-shaped puffed food cutting device which comprises an equipment box, one side of the upper portion of the equipment box is fixedly connected with a guide rail, one side of the guide rail is fixedly connected with an electric push rod, one end of the electric push rod is fixedly connected with a limiting stopper, and the limiting stopper is clamped in the guide rail. A protective cover is fixedly connected to the lower portion of the limiting stopper, and a cutter is movably connected into the protective cover in a sleeved mode. According to the strip-shaped puffed food cutting device, the surface of the cutter can be conveniently cleaned, the food sanitation problem is solved, the service life of the cutter is prolonged, a plurality of strips of strip-shaped puffed food can be conveniently divided according to the actual size, winding and overlapping of the strip-shaped puffed food are reduced, the working efficiency is improved, and the labor intensity of workers is reduced. The belt-shaped puffed food in the equipment box can be conveniently flattened, the belt-shaped puffed food is prevented from being crushed, the bending deformation of the belt-shaped puffed food is reduced, and the cutting quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing, in particular to a strip-shaped puffed food cutting device. Background Art

[0002] Puffed food is made from grains, potatoes or beans as the main raw materials, and is made by puffing processes such as baking, frying, microwaving or extrusion. It has a significantly increased volume and a certain degree of puffing. It is a snack food with a crispy texture, fragrant aroma and various styles.

[0003] The strip-shaped puffed food is sent into a heated puffing chamber through a puffing device (such as an puffing machine, an extruder, etc.), and puffed and extruded under high temperature and high pressure to expand the mixture and form the desired strip shape. The puffed food material is cut by a cutting device to form the desired strip shape. The cutting device usually uses a cutter to cut the strip-shaped puffed food. After the cutter is used for a long time, food residues are easily accumulated on the surface of the cutter, causing food hygiene problems and reducing the service life of the cutter. In the actual production process, in order to improve efficiency, the cutting device often needs to cut multiple strip-shaped puffed foods at the same time. The existing cutting device is not convenient for diverting strip-shaped puffed foods of different sizes and widths, and it is easy to cause the strip-shaped puffed foods to be entangled and overlapped, affecting the quality of the finished product. Puffed food is easy to deform and bend within a period of time after puffing and forming. When the strip-shaped puffed food moves in the cutting device, bending and deformation may occur, affecting the cutting quality. For this reason, a strip-shaped puffed food cutting device is proposed. Utility Model Content

[0004] The main purpose of the utility model is to provide a strip-shaped puffed food cutting device, which solves the problem that the cutting device usually uses a cutter to cut the strip-shaped puffed food. After the cutter is used for a long time, food residues are easily accumulated on the surface of the cutter, causing food hygiene problems and reducing the service life of the cutter. In the actual production process, in order to improve efficiency, the cutting device often needs to cut multiple strips of puffed food at the same time. The existing cutting device is not convenient for diverting strips of puffed food of different sizes and widths, and it is easy to cause the strips of puffed food to be entangled and overlapped, affecting the quality of the finished product. Puffed food is easy to deform and bend within a period of time after puffing and forming. When the strip-shaped puffed food moves in the cutting device, it may bend and deform, affecting the cutting quality.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A strip puffed food cutting device comprises an equipment box, a guide rail is fixedly connected to one side of the upper part of the equipment box, an electric push rod is fixedly connected to one side of the guide rail, one end of the electric push rod is fixedly connected to a limiter, the limiter is clamped in the guide rail, a shield is fixedly connected to the lower part of the limiter, a cutter is movably sleeved inside the shield, two first springs are fixedly connected equidistantly above the cutter, the upper parts of the two first springs are fixedly connected to the limiter, a cutting platform is fixedly connected to the inner side of the cutter at the lower part of the interior of the equipment box, a scraper is fixedly connected to one side of the equipment box, and a collection box is fixedly connected to one side of the equipment box below the scraper.

[0007] Furthermore, a plurality of gear teeth are fixedly connected to the inner side of the cutter at equal intervals, a gear is connected to one side of the gear teeth, a first motor is fixedly connected to one side of the gear, a shield is fixedly connected to one side of the first motor, and a through slot is opened on one side of the equipment box.

[0008] Furthermore, a mounting groove is provided on one side of the equipment box, a second motor is fixedly connected in the mounting groove, a transmission roller is fixedly connected to one side of the second motor, and the transmission roller moves inside the equipment box.

[0009] Furthermore, a feed port is provided on one side of the equipment box, an L-shaped bracket is fixedly connected to the equipment box below the feed port, a limiting groove is provided below the L-shaped bracket, a plurality of fixing holes are equidistantly provided on one side of the limiting groove below the L-shaped bracket, three diversion components are equidistantly arranged on the L-shaped bracket, and the three diversion components have the same structure.

[0010] Furthermore, the diversion assembly includes a limit rod, which is movably sleeved in a limit groove, a baffle is fixedly connected to the top of the limit rod, a connecting bracket is fixedly connected to the bottom of the limit rod, and the connecting bracket abuts against the outside of the L-shaped bracket, the inner side of the top of the connecting bracket passes through the feed port and abuts against the inner bottom of the equipment box, a diverter plate is fixedly connected to the top of the connecting bracket, a connecting hole is provided at the bottom of the connecting bracket, a fixing rod passes through the connecting hole, a pull plate is fixedly connected to the bottom of the fixing rod, a third spring is fixedly connected to the inner side of the pull plate, the inner side of the third spring is fixedly connected to the connecting bracket, and one end of the fixing rod passes through an adjacent fixing hole.

[0011] Furthermore, fixed grooves are provided on both sides of the equipment box, a rolling roller passes between the two fixed grooves, both ends of the rolling roller are movably sleeved with limit rings, connecting rods are fixedly connected to the tops of the two limit rings, fourth springs are fixedly connected to the tops of the two connecting rods, fixed plates are fixedly connected to the tops of the two fourth springs, the inner sides of the two fixing plates are fixedly connected to the equipment box, and limiting sleeves are fixedly connected to the bottoms of the two fixing plates, the two fourth springs are respectively movable in the two limiting sleeves, and the upper ends of the two connecting rods are movably sleeved in the adjacent limiting sleeves.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The scraper setting adopted by the utility model makes it convenient to clean the surface of the cutter, reduces food hygiene problems, and increases the service life of the cutter. When the electric push rod is started, the electric push rod pushes the limiter to move in the guide rail, and the limiter drives the cutter to move outward through the shield and the first spring. At the same time, the shield drives the first motor to pass through the through slot until the cutter passes through the scraper. The food residues accumulated on the surface of the cutter are scraped by the scraper and fall into the collection box. When the surface of the cutter is cleaned, the electric push rod is started to move in the reverse direction to reset the device. Through such a setting, it is convenient to clean the surface of the cutter, reduces food hygiene problems, and increases the service life of the cutter.

[0014] 2. The utility model facilitates the diversion of multiple strips of puffed food according to actual sizes through the arrangement of the diverter plate, reduces the entanglement and overlap between the strips of puffed food, and improves work efficiency. When the pull plate is pulled, the pull plate drives the third spring to stretch, and at the same time, the pull plate drives the fixing rod to no longer pass through the fixing hole. At this time, the connecting bracket can be moved along the L-shaped bracket. Because the limit rod fixedly connected inside the connecting bracket moves in the limit groove, the connecting bracket can only move along the direction of the limit groove, and the connecting bracket drives the diverter plate to move. When the spacing between the diverter plates is adjusted to the required distance, the pull plate can be released, and the third spring contracts to make the fixing rod pass through the adjacent fixing hole. At this time, the strip of puffed food is placed between the diverter plates, so that the diverter plates can realize the diversion of strips of puffed food of different sizes. Through such an arrangement, it is convenient to divert multiple strips of puffed food according to actual sizes, reduces the entanglement and overlap between the strips of puffed food, and improves work efficiency.

[0015] 3. The utility model facilitates flattening the strip-shaped puffed food entering the equipment box through the arrangement of the fourth spring, reduces the bending deformation of the strip-shaped puffed food, and improves the cutting quality. The strip-shaped puffed food is arranged between the rolling roller and the bottom of the equipment box. At this time, the strip-shaped puffed food is squeezed by the rolling roller to generate a reaction force that pushes the rolling roller to move upward. The rolling roller squeezes the fourth spring through the limit ring and the connecting rod. The fourth spring generates a rebound force that pushes the rolling roller through the limit ring and the connecting rod to flatten the strip-shaped puffed food for easy cutting. At the same time, the fourth spring can buffer the force of the strip-shaped puffed food and protect the strip-shaped puffed food from being crushed. Through such an arrangement, it is convenient to flatten the strip-shaped puffed food entering the equipment box, protect the strip-shaped puffed food from being crushed, reduce the bending deformation of the strip-shaped puffed food, and improve the cutting quality.

[0016] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a strip-shaped puffed food cutting device from a first angle according to the utility model.

[0018] Figure 2 This is a schematic diagram of the overall structure of a strip-shaped puffed food cutting device according to the utility model from a second angle.

[0019] Figure 3 The utility model is a schematic diagram of the overall structure of a cutting knife of a strip-shaped puffed food cutting device when the cutting knife is not being cleaned.

[0020] Figure 4 The utility model is a schematic diagram of the overall structure of a cutter of a strip-shaped puffed food cutting device in a cleaning state.

[0021] Figure 5 The utility model is a partial structural schematic diagram of the first motor of a strip-shaped puffed food cutting device.

[0022] Figure 6 The utility model is a partial structural schematic diagram of a limiting groove of a strip-shaped puffed food cutting device.

[0023] Figure 7 The utility model is a partial structural schematic diagram of a connecting bracket of a strip-shaped puffed food cutting device.

[0024] Figure 8 The utility model is a partial structural schematic diagram of a rolling roller of a strip-shaped puffed food cutting device.

[0025] In the figure: 1. Equipment box; 2. Electric push rod; 3. Guide rail; 4. Limiter; 6. First spring; 7. Gear; 8. Cutter; 9. Gear; 10. First motor; 11. Scraper; 12. Collecting box; 13. Second motor; 14. Transmission roller; 15. Limiting groove; 16. Fixing hole; 17. Third spring; 18. Pull plate; 19. Connecting bracket; 20. Diverter plate; 21. Roller; 22. Fourth spring; 23. Cutting platform. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] like Figure 1-Figure 5 As shown, a strip-shaped puffed food cutting device comprises an equipment box 1, a guide rail 3 is fixedly connected to one side of the upper part of the equipment box 1, an electric push rod 2 is fixedly connected to one side of the guide rail 3, one end of the electric push rod 2 is fixedly connected to a limiter 4, the limiter 4 is clamped in the guide rail 3, a shield is fixedly connected to the lower part of the limiter 4, a cutter 8 is movably sleeved inside the shield, two first springs 6 are fixedly connected to the upper part of the cutter 8 at equal distances, the upper parts of the two first springs 6 are fixedly connected to the limiter 4, a cutting platform 23 is fixedly connected to the inner side of the cutter 8 at the lower part of the equipment box 1, a scraper 11 is fixedly connected to one side of the equipment box 1, and a scraper 11 is fixedly connected to one side of the equipment box 1. A collection box 12 is fixedly connected below the scraper 11. Through such a setting, the electric push rod 2 is started, and the electric push rod 2 pushes the limiter 4 to move in the guide rail 3. The limiter 4 drives the cutter 8 to move outward through the shield and the first spring 6. At the same time, the shield drives the first motor 10 to pass through the through slot until the cutter 8 passes through the scraper 11. The food residues accumulated on the surface of the cutter 8 are scraped by the scraper 11 and fall into the collection box 12. When the surface of the cutter 8 is cleaned, the electric push rod 2 is started to move in the opposite direction to reset the device. Through such a setting, it is convenient to clean the surface of the cutter 8, reduce food hygiene problems, and increase the service life of the cutter 8.

[0028] like Figure 1-Figure 5As shown, a plurality of gear teeth 7 are equidistantly fixedly connected to the inner side of the cutter 8, a gear 9 is connected to one side of the plurality of gear teeth 7, a first motor 10 is fixedly connected to one side of the gear 9, a shield is fixedly connected to one side of the first motor 10, a through slot is provided on one side of the equipment box 1, and through such an arrangement, the first motor 10 is started, the first motor 10 drives the gear teeth 7 to move through the gear 9, the gear teeth 7 drives the cutter 8 to move downward, the cutter 8 drives the first spring 6 to stretch until the cutter 8 cuts off the strip-shaped puffed food on the cutting platform 23, at which time the first motor 10 drives the gear 9 to continue rotating until the teeth on the gear 9 no longer mesh with the gear teeth 7, at which time the first spring 6 contracts and drives the cutter 8 to reset until the cutter 8 performs the next cutting; the gear 9 is a special-shaped gear, and only part of the circumference of the gear 9 has teeth.

[0029] like Figure 1-Figure 4 As shown, a mounting groove is opened on one side of the equipment box 1, and a second motor 13 is fixedly connected in the mounting groove. A transmission roller 14 is fixedly connected to one side of the second motor 13, and the transmission roller 14 moves inside the equipment box 1. Through such an arrangement, the second motor 13 is started, and the second motor 13 drives the transmission roller 14 to rotate, and the transmission roller 14 drives the strip-shaped puffed food in the equipment box 1 to move to the cutting platform 23 for cutting.

[0030] like Figure 1-Figure 7 As shown, a feed port is provided on one side of the equipment box 1, and an L-shaped bracket is fixedly connected to the equipment box 1 below the feed port, a limiting groove 15 is provided below the L-shaped bracket, and a plurality of fixing holes 16 are equidistantly provided on one side of the limiting groove 15 below the L-shaped bracket, and three diverter components are equidistantly arranged on the L-shaped bracket, and the three diverter components have the same structure. Through such an arrangement, strip-shaped puffed food that needs to be cut can be put into the equipment box 1 from the side of the feed port; the number of diverter components can be increased or decreased according to actual production conditions.

[0031] like Figure 1-Figure 7As shown, the diverter assembly includes a limit rod, which is movably sleeved in the limit groove 15, a baffle is fixedly connected to the upper part of the limit rod, a connecting bracket 19 is fixedly connected to the lower part of the limit rod, and the connecting bracket 19 abuts against the outer side of the L-shaped bracket, the upper inner side of the connecting bracket 19 passes through the feed port and abuts against the inner lower part of the equipment box 1, a diverter plate 20 is fixedly connected to the upper part of the connecting bracket 19, a connecting hole is provided at the lower part of the connecting bracket 19, a fixing rod passes through the connecting hole, a pull plate 18 is fixedly connected to the lower part of the fixing rod, a third spring 17 is fixedly connected to the inner side of the pull plate 18, and the inner side of the third spring 17 is fixedly connected to the connecting bracket 19, one end of the fixing rod passes through the adjacent fixing hole 16, through such an arrangement, the pull plate 18 is pulled, and the pull plate 18 drives the third spring 17 to stretch, and at the same time When the pull plate 18 drives the fixing rod no longer to pass through the fixing hole 16, the connecting bracket 19 can be moved along the L-shaped bracket, because the limiting rod fixedly connected inside the connecting bracket 19 moves in the limiting groove 15, so the connecting bracket 19 can only move along the direction of the limiting groove 15, and the connecting bracket 19 drives the diverter plate 20 to move. When the spacing between the diverter plates 20 is adjusted to the required distance, the pull plate 18 can be released, and the third spring 17 contracts to make the fixing rod pass through the adjacent fixing hole 16. At this time, the strip puffed food is placed between the diverter plates 20, so that the diverter plate 20 can realize the diversion of strip puffed foods of different sizes. Through such a setting, it is convenient to divert multiple strip puffed foods according to actual sizes, reduce the entanglement and overlap between strip puffed foods, and improve work efficiency.

[0032] like Figure 1-Figure 8 As shown, both sides of the equipment box 1 are provided with fixed grooves, a rolling roller 21 passes between the two fixed grooves, both ends of the rolling roller 21 are movably sleeved with limit rings, the upper parts of the two limit rings are fixedly connected with connecting rods, the upper parts of the two connecting rods are fixedly connected with fourth springs 22, the upper parts of the two fourth springs 22 are fixedly connected with fixed plates, the inner sides of the two fixed plates are fixedly connected to the equipment box 1, the lower parts of the two fixed plates are fixedly connected with limit sleeves, the two fourth springs 22 are respectively movable in the two limit sleeves, and the upper ends of the two connecting rods are movably sleeved in the adjacent limit sleeves. Through such an arrangement, the strip-shaped puffed food is passed through the rolling roller 21. The roller 21 is arranged between the bottom of the equipment box 1. At this time, the strip of puffed food is squeezed by the rolling roller 21 to generate a reaction force to push the rolling roller 21 to move upward. The rolling roller 21 squeezes the fourth spring 22 through the limiting ring and the connecting rod. The fourth spring 22 generates a rebound force to push the rolling roller 21 through the limiting ring and the connecting rod to flatten the strip of puffed food for easy cutting. At the same time, the fourth spring 22 can buffer the force of the strip of puffed food and protect the strip of puffed food from being crushed. Through such a setting, it is convenient to flatten the strip of puffed food entering the equipment box 1, protect the strip of puffed food from being crushed, reduce the bending deformation of the strip of puffed food, and improve the cutting quality.

[0033] It should be noted that when in use, the equipment box 1 is placed on a horizontal plane, and the pull plate 18 is pulled. The pull plate 18 drives the third spring 17 to stretch, and at the same time, the pull plate 18 drives the fixing rod to no longer pass through the fixing hole 16. At this time, the connecting bracket 19 can be moved along the L-shaped bracket. Because the limiting rod fixedly connected inside the connecting bracket 19 moves in the limiting groove 15, the connecting bracket 19 can only move along the direction of the limiting groove 15. The connecting bracket 19 drives the diverter plate 20 to move. When the spacing between the diverter plates 20 is adjusted to the required distance, the pull plate 18 can be released, and the third spring 17 contracts to make the fixing rod pass through the adjacent fixing hole 16. At this time, the strip-shaped puffed food is placed between the diverter plates 20;

[0034] The strip-shaped puffed food is passed through the rolling roller 21 and arranged between the bottom of the equipment box 1. At this time, the strip-shaped puffed food is squeezed by the rolling roller 21 to generate a reaction force to push the rolling roller 21 to move upward. The rolling roller 21 squeezes the fourth spring 22 through the limit ring and the connecting rod. The fourth spring 22 generates a rebound force to push the rolling roller 21 through the limit ring and the connecting rod to flatten the strip-shaped puffed food for easy cutting. At the same time, the fourth spring 22 can buffer the force of the strip-shaped puffed food to protect the strip-shaped puffed food from being crushed. The second motor 13 is started, and the second motor 13 drives the transmission roller 14 to rotate. The transmission roller 14 drives the strip-shaped puffed food in the equipment box 1 to move to the cutting platform 23 for cutting;

[0035] When the strip-shaped puffed food moves onto the cutting platform 23, the first motor 10 is started, and the first motor 10 drives the gear 7 to move through the gear 9, and the gear 7 drives the cutter 8 to move downward, and the cutter 8 drives the first spring 6 to stretch until the cutter 8 cuts off the strip-shaped puffed food on the cutting platform 23. At this time, the first motor 10 drives the gear 9 to continue rotating until the teeth on the gear 9 no longer mesh with the gear 7. At this time, the first spring 6 contracts and drives the cutter 8 to reset until the cutter 8 performs the next cutting.

[0036] When the cutter 8 needs to be cleaned, the electric push rod 2 is started, and the electric push rod 2 pushes the limiter 4 to move in the guide rail 3. The limiter 4 drives the cutter 8 to move outward through the shield and the first spring 6. At the same time, the shield drives the first motor 10 to pass through the through slot until the cutter 8 passes through the scraper 11. The food residues accumulated on the surface of the cutter 8 are scraped by the scraper 11 and fall into the collection box 12. When the surface of the cutter 8 is cleaned, the electric push rod 2 is started to move in the reverse direction to reset the device.

[0037] The utility model provides a cutting device to solve the problem that the cutting device usually uses a cutter 8 to cut the strip-shaped puffed food. After the cutter 8 is used for a long time, food residues are easily accumulated on the surface of the cutter 8, causing food hygiene problems and reducing the service life of the cutter 8. In the actual production process, in order to improve efficiency, the cutting device often needs to cut multiple strips of puffed food at the same time. The existing cutting device is not convenient for diverting strips of puffed food of different sizes and widths, and it is easy to cause the strips of puffed food to be entangled and overlapped, affecting the quality of the finished product. Puffed food is easy to deform and bend within a period of time after puffing and forming. When the strip-shaped puffed food moves in the cutting device, it may bend and deform, affecting the cutting quality. The utility model is more practical.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A strip-shaped puffed food cutting device, characterized in that: The invention comprises an equipment box (1), wherein a guide rail (3) is fixedly connected to one side of the upper part of the equipment box (1), an electric push rod (2) is fixedly connected to one side of the guide rail (3), one end of the electric push rod (2) is fixedly connected to a limiter (4), the limiter (4) is clamped in the guide rail (3), a protective cover is fixedly connected to the lower part of the limiter (4), a cutter (8) is movably sleeved inside the protective cover, two first springs (6) are fixedly connected to the upper part of the cutter (8) at equal distances, the upper parts of the two first springs (6) are fixedly connected to the limiter (4), a cutting platform (23) is fixedly connected to the inner side of the cutter (8) at the lower part of the interior of the equipment box (1), a scraper (11) is fixedly connected to one side of the equipment box (1), and a collection box (12) is fixedly connected to the lower part of the equipment box (1) below the scraper (11).

2. The strip-shaped puffed food cutting device according to claim 1, characterized in that: A plurality of gear teeth (7) are fixedly connected at equal intervals to the inner side of the cutter (8); a gear (9) is connected to one side of the gear teeth (7); a first motor (10) is fixedly connected to one side of the gear (9); a protective cover is fixedly connected to one side of the first motor (10); and a through slot is provided on one side of the equipment box (1).

3. The strip-shaped puffed food cutting device according to claim 2, characterized in that: A mounting groove is provided on one side of the equipment box (1), a second motor (13) is fixedly connected in the mounting groove, a transmission roller (14) is fixedly connected to one side of the second motor (13), and the transmission roller (14) moves inside the equipment box (1).

4. The strip-shaped puffed food cutting device according to claim 3, characterized in that: A feed port is provided on one side of the equipment box (1); an L-shaped bracket is fixedly connected to the equipment box (1) below the feed port; a limit slot (15) is provided below the L-shaped bracket; a plurality of fixing holes (16) are equidistantly provided on one side of the limit slot (15) below the L-shaped bracket; three diversion assemblies are equidistantly arranged on the L-shaped bracket, and the three diversion assemblies have the same structure.

5. The strip-shaped puffed food cutting device according to claim 4, characterized in that: The diversion assembly comprises a limit rod, which is movably sleeved in a limit groove (15); a baffle is fixedly connected to the upper part of the limit rod; a connecting bracket (19) is fixedly connected to the lower part of the limit rod, and the connecting bracket (19) abuts against the outer side of the L-shaped bracket; the upper inner side of the connecting bracket (19) passes through the feed port and abuts against the lower part of the interior of the equipment box (1); a diversion plate (20) is fixedly connected to the upper part of the connecting bracket (19); a connecting hole is provided at the lower part of the connecting bracket (19); a fixing rod passes through the connecting hole; a pull plate (18) is fixedly connected to the lower part of the fixing rod; a third spring (17) is fixedly connected to the inner side of the pull plate (18); the inner side of the third spring (17) is fixedly connected to the connecting bracket (19); one end of the fixing rod passes through an adjacent fixing hole (16).

6. The strip-shaped puffed food cutting device according to claim 1, characterized in that: Both sides of the equipment box (1) are provided with fixing grooves, a rolling roller (21) passes between the two fixing grooves, both ends of the rolling roller (21) are movably sleeved with limit rings, the upper parts of the two limit rings are fixedly connected with connecting rods, the upper parts of the two connecting rods are fixedly connected with fourth springs (22), the upper parts of the two fourth springs (22) are fixedly connected with fixing plates, the inner sides of the two fixing plates are fixedly connected to the equipment box (1), the lower parts of the two fixing plates are fixedly connected with limit sleeves, the two fourth springs (22) are respectively movable in the two limit sleeves, and the upper ends of the two connecting rods are movably sleeved in the adjacent limit sleeves.

Images