Particle material transporting, loading and unloading structure applied to bulk trailer

Abstract

A particle material transporting, loading and unloading structure applied to a bulk trailer relates to the technical field of trailers and comprises a trailer bottom plate, a compartment capable of turning backwards is arranged on the trailer bottom plate, a rear cover is arranged on the side, away from a trailer head, of the compartment, the rear cover and the compartment are connected in the compartment in a sealed mode to form a sealed cavity, and a feeding port is formed in the upper portion of the rear cover. A rear cover is arranged below the compartment, a discharging cavity is arranged below the rear cover, two or more discharging port mechanisms used for discharging are further arranged below the rear cover, and a guiding mechanism used for guiding materials in the compartment to the designated discharging port mechanisms for discharging is arranged in the discharging cavity. The guide mechanisms are started to enable the corresponding discharging opening mechanisms to communicate with the discharging cavities, then particle materials in the compartment are guided by the guide mechanisms in the discharging cavities and discharged from the preset number of discharging opening mechanisms, and therefore the materials in the compartment can be discharged more conveniently and completely.

Description

Technical Field

[0001] The present invention belongs to the technical field of trailers, and more specifically, relates to a structure for transporting and loading and unloading granular materials used in bulk trailers. Background Art

[0002] At present, trailer compartments used for transporting granular materials are generally unloaded by turning the compartment over as a whole through a cylinder. However, when unloading by turning the compartment over as a whole, the discharge port is too large, which is not convenient for collecting the materials.

[0003] The existing Chinese patent with announcement number CN114162023A discloses a flip-type dump truck, including a frame, a fixed box body is arranged on the top of the frame, and an L-shaped flip box body is rotatably connected inside the fixed box body, a group of side panels are arranged on one side of the frame, and the top of each side panel is rotatably installed with a first multi-stage cylinder whose output end is rotatably connected to the L-shaped flip box body. During transportation, the invention seals the L-shaped flip box body and the fixed box body by the cooperation of the top plate and the support plate. During unloading, the closed door is opened by the telescopic cylinder, and then the first multi-stage cylinder pushes the L-shaped flip box body to flip according to the natural stacking angle of the transported object, and the material can flow out from the discharge port by gravity, thereby achieving the technical effect of making unloading more convenient, faster and safer.

[0004] With regard to the existing trailer transportation and loading and unloading technology, a plurality of discharge ports are set to control the discharge range, and the gravity discharge method is used to achieve accurate and convenient unloading of the carriage. However, in actual use, not all material receivers have multiple containers for receiving materials, and the extra discharge ports on the carriage cannot be used, and the materials are easily accumulated at other unused discharge ports, resulting in incomplete unloading. Although the other discharge ports can be opened in sequence to complete the residual unloading, when transporting food-grade particles, the discharge port is generally tubular and detachably connected to the receiving port on the receiving container. Unloading in sequence makes the unloading procedure very complicated; and when unloading by gravity in the prior art, when dealing with granular materials with insufficient fluidity, it is easy to stop flowing at a relatively narrow discharge port, thereby causing blockage of the discharge port, and then causing inconvenience in unloading. Therefore, in view of the defects existing in the above technical background, it is urgent to propose a structure for transporting and loading and unloading granular materials used in bulk trailers to overcome the shortcomings in current practical applications. Summary of the invention

[0005] The present invention aims to solve the problem that the existing trailer compartment is provided with multiple discharge ports during unloading, resulting in incomplete material unloading and complicated unloading procedures; and during the trailer gravity unloading process, the discharge port is blocked due to the low fluidity of the granular material.

[0006] The purpose and effect of the structure for transporting and loading and unloading particulate materials in a bulk trailer of the present invention are achieved by the following specific technical means: A structure for transporting and loading and unloading granular materials used in a bulk trailer, comprising: Trailer floor; The support frame is hingedly arranged on the trailer bottom plate, and one end of the support frame away from the front of the vehicle is hingedly arranged on the trailer bottom plate; The telescopic hydraulic rod is arranged on the trailer bottom plate near the front of the vehicle, and the telescopic hydraulic push rod is used to drive the support frame to flip backward; The carriage is fixedly connected to the support frame, and a rear cover is arranged on the side of the carriage away from the front of the vehicle, and the rear cover is sealedly connected to the carriage to form a closed cavity in the carriage; The feed inlet is fixedly arranged above the rear cover, the feed inlet penetrates the outside and the internal cavity of the carriage, and a cover is detachably connected to the feed inlet; A discharge chamber is arranged below the rear cover, and two or more discharge port mechanisms for discharge are arranged below the rear cover. A guide mechanism for guiding the material in the carriage to the designated discharge port mechanism is arranged in the discharge chamber.

[0007] Furthermore, the discharge port mechanism comprises: The main discharge port is arranged below the rear cover. Two or more main discharge ports are arranged below the rear cover. The main discharge ports connect the discharge chamber with the outside. The secondary discharge port is threadedly connected to the main discharge port. The cross-sectional area of ​​the secondary discharge port is smaller than that of the main discharge port. The outer edges of the secondary discharge port and the main discharge port are both provided with external threads for connecting to the receiving port of the receiving container, and a sealing cover is also provided on the secondary discharge port.

[0008] Furthermore, a pointed end is provided at the connection portion between the two discharge port mechanisms and the discharge chamber, for diverting the granular material in the discharge chamber into the two discharge port mechanisms.

[0009] Furthermore, the discharge chamber is configured as a square structure, and the guide mechanism includes: A hydraulic push rod is arranged in the discharge chamber. Relative hydraulic push rods are arranged on both the front and rear sides of the discharge chamber. A sliding block is fixedly connected to the end of the telescopic rod on the hydraulic push rod. In the initial state, the sliding blocks on the front and rear sides are in contact with each other. When the hydraulic push rod drives the sliding block to move, the right end of the sliding block is always in contact with the right side wall of the discharge chamber. A guide plate 1 is hinged on the slider, and the front and rear sliders are both hinged with a guide plate 1; Guide plate two is rotatably arranged on the discharge chamber, and guide plate two is rotatably arranged on the front and rear side walls of the discharge chamber. The free ends of guide plate one and guide plate two are slidably connected, and the upper and lower ends of guide plate one, guide plate two and the slider are in contact with the upper and lower walls of the discharge chamber correspondingly to isolate the part of the discharge chamber where the hydraulic push rod is located. When the two sliders are in contact, the guide plates one and guide plate two on the front and rear sides and the slider isolate the discharge chamber from the discharge port mechanism.

[0010] Furthermore, elastic connecting membranes for sealing gaps at the hinges are provided at the hinges between the guide plate 1 and the slider, and at the hinges between the guide plate 2 and the inner wall of the rear cover.

[0011] Furthermore, a slide bar is fixedly connected to the surface of guide plate 1 that contacts the granular material, a slide groove is provided on guide plate 2, the slide bar is slidably connected in the slide groove, the free end of guide plate 1 is slidably connected to the free end of guide plate 2 through the slide bar, and a downwardly inclined slope is provided above the slide bar.

[0012] Furthermore, a resettable mounting frame is slidably connected in the front and rear walls of the discharging chamber through a reset spring, and the guide plate 2 is hinged on the mounting frame. A rotatable reset rope roll is provided on the rear cover at the back position where the mounting frame contacts the granular material through a coil spring. A positioning column is fixedly arranged in the slide groove near the hinge of the guide plate 2, and a connecting rope is fixedly connected to the end of the slide away from the guide plate 2. The connecting rope is wound around the rope roll after turning through the positioning column. A limiting portion is provided on the rear cover to limit the mounting frame from moving in the direction of the rope roll and contacting the mounting frame. A ratchet is provided on the rope roll to rotate coaxially with the ratchet, and a pawl is hinged on the mounting frame to engage with the ratchet. When the slide bar in the guide plate 1 retracts into the slide groove, the pawl swings without limiting the rotation of the ratchet. When the slide bar in the guide plate 1 slides out of the slide groove, the rotation of the ratchet is limited and engaged by the pawl, and the ratchet teeth on it push the pawl to drive the mounting frame to move. Beneficial Effects

[0013] 1. The present invention provides a structure for transporting and loading and unloading granular materials used in bulk trailers. By starting the front and rear hydraulic push rods to drive the slider to move, the corresponding discharge port mechanism is connected to the discharge chamber, while the discharge port mechanism not connected to the receiving container is still separated by the guide plate 1, the guide plate 2, and the slider. When the two sliders are separated, the guide plate 1 and the guide plate 2 on both sides form an "eight" shape to guide the granular materials, so that the granular materials in the car body are guided by the guide mechanism in the discharge chamber and discharged from a predetermined number of discharge port mechanisms, so that the materials in the car body can be unloaded more conveniently and completely.

[0014] 2. The present invention provides a structure for transporting and loading and unloading granular materials used in bulk trailers, which drives the slider to move back and forth by starting the hydraulic push rod, thereby driving the guide plate 1 and the guide plate 2 to rotate and deflect, thereby driving the granular materials in contact with them to be squeezed and flow, thereby avoiding the problem of blockage of the discharge port mechanism due to poor flow performance of the granular materials.

[0015] 3. The present invention provides a structure for transporting and loading and unloading granular materials used in bulk trailers. When the guide plate 1 and the guide plate 2 slide, the mounting frame is driven to vibrate, thereby driving the guide plate 1 and the guide plate 2 to vibrate, thereby making the guide plate drive the granular material to flow more effectively. At the same time, when the granular material is about to be completely unloaded from the car, the small amount of residual granular material retained on the guide plate 1 and the guide plate 2 can be shaken and discharged from the discharge port mechanism, thereby making the unloading more complete. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front cross-sectional schematic diagram of the present invention.

[0017] Figure 2 It is a top cross-sectional schematic diagram of the back cover of the present invention.

[0018] Figure 3 It is a schematic structural diagram of the matching position of the guide plate 1 and the guide plate 2 of the present invention.

[0019] Figure 4 For the present invention Figure 2 A magnified schematic diagram of center A.

[0020] Figure 5 For the present invention Figure 2 A magnified schematic diagram of point B in the middle.

[0021] Figure 6 It is a schematic structural diagram of the rope winding part of the present invention.

[0022] Figure 1-6 In: 1-trailer bottom plate, 2-extension and lowering hydraulic rod, 3-support frame, 4-carriage, 5-rear cover, 501-tip part, 6-feeding port, 7-discharging chamber, 8-discharging port mechanism, 801-main discharging port, 802-secondary discharging port, 9-guide mechanism, 10-hydraulic push rod, 11-slider, 12-guide plate 1, 13-guide plate 2, 14-slide, 141-inclined surface, 15-slide groove, 16-connecting film, 17-mounting frame, 171-pawl, 18-reset spring, 19-limiting part, 20-rope roll, 21-ratchet, 22-connecting rope, 23-positioning column, 24-cover. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] As attached Figure 1-6 The trolley assembly 3 is a kind of trolley assembly that is used for transporting and loading and unloading granular materials in bulk trailers. The trolley assembly 3 is a kind of trolley assembly that is used for transporting and loading and unloading granular materials in bulk trailers. The trolley assembly 3 is a kind of trolley assembly that is used for transporting and loading and unloading granular materials in bulk trailers. The trolley assembly 3 is a kind of trolley assembly that is used for transporting and loading and unloading granular materials in bulk trailers. The trolley assembly 3 is a kind of trolley assembly that is used for transporting and loading and unloading granular materials in bulk trailers. The trolley assembly 3 is a kind of trolley assembly that is used for transporting and loading and unloading granular materials in bulk trailers. The trolley assembly 3 is a kind of trolley assembly that is used for transporting and loading and unloading granular materials in bulk trailers. The trolley assembly 3 is a kind of trolley assembly that is used for transporting and loading and unloading granular materials in bulk trailers. The trolley assembly 3 is a kind of trolley assembly that is used for transporting and loading and unloading granular materials in bulk trailers. The trolley assembly 3 is a kind of trolley assembly that is used for transporting and loading and unloading granular materials in bulk trailers. The trolley assembly 3 is a kind of trolley assembly that is used for transporting and loading and unloading granular materials in bulk trailers. When the carriage 4 needs to be cleaned, it is only necessary to remove the screws to open the rear cover 5. A feed port 6 is provided above the rear cover 5, and the feed port 6 passes through the outside and the internal cavity of the carriage 4, and a cover 24 is detachably connected to the feed port 6. Specifically, the cover 24 can be connected to the feed port 6 in conventional ways such as threaded connection, which is used to seal the feed port 6 and prevent external dust from entering the carriage 4. A discharge chamber 7 is provided below the rear cover 5, and two or more discharge port mechanisms 8 for discharging are also provided below the rear cover 5. Specifically, it is more appropriate to set the discharge port mechanisms 8 as two or three. A guide mechanism 9 is provided in the discharge chamber 7 for guiding the material in the carriage 4 to the designated discharge port mechanism 8 for unloading. By starting the lifting hydraulic rod 2, the support frame 3 is flipped backward, thereby driving the carriage 4 to flip backward. The granular material in the carriage 4 enters the discharge chamber 7 under the action of gravity, and is unloaded from the predetermined discharge port mechanism 8 under the guidance of the guide mechanism 9 in the discharge chamber 7.

[0025] Among them, as attached Figure 4As shown, as a specific structure and implementation of the discharge port mechanism 8, the discharge port mechanism 8 includes a main discharge port 801 and a secondary discharge port 802. Two or more main discharge ports 801 are arranged below the rear cover 5. The main discharge port 801 connects the discharge chamber 7 with the outside, and the main discharge chamber 7 is located in the outside part and is detachably connected with the secondary discharge port 802. Specifically, the main discharge port 801 is located in the outside part and is connected with the secondary discharge port 802 by thread, and the cross-sectional area of ​​the secondary discharge port 802 is smaller than that of the main discharge port 801. The cross-sectional area of ​​the discharge port 801, the outer edges of the secondary discharge port 802 and the main discharge port 801 are provided with external threads for connecting with the receiving port of the receiving container, and the secondary discharge port 802 is also provided with a cover 24 to prevent dust from entering, and the cover 24 can also be fixed at this discharge port by a threaded connection. By setting the main discharge port 801 and the secondary discharge port 802 with different apertures, the discharge port mechanism 8 can correspond to the receiving ports of receiving containers of different sizes, thereby making the discharge port mechanism 8 have a wider range of uses.

[0026] Preferably, as attached Figure 2 As shown, a tip portion 501 is provided at the connection portion between the two discharge port mechanisms 8 and the discharge chamber 7, and the granular material in the discharge chamber 7 is diverted to the two discharge port mechanisms 8 through the tip portion 501, thereby making the discharge more complete.

[0027] Among them, as attached Figure 1-3As shown, as a specific structure and implementation of the guide mechanism 9, the guide mechanism 9 includes a guide plate 12 and a guide plate 2 13, the discharge chamber 7 is set to a square structure, and hydraulic push rods 10 are arranged on the front and rear sides of the discharge chamber 7. The hydraulic push rods 10 are of an existing structure and are driven by a hydraulic pump. The hydraulic pump can be arranged in the rear cover 5. The front and rear hydraulic push rods 10 are arranged relatively, and the ends of the telescopic rods on the hydraulic push rods 10 are fixedly connected with sliders 11. In the initial state, the sliders 11 on the front and rear sides are in contact, and when the hydraulic push rod 10 drives the slider 11 to move, the right end of the slider 11 is always connected to the right side wall of the discharge chamber 7. The front and rear sliders 11 are hinged with guide plates 12. A guide plate 13 is hinged on both the rear side walls, and the free ends of the guide plates 12 and 13 are slidably connected. The upper and lower ends of the guide plates 12, 13 and the slider 11 are in contact with the upper and lower walls of the discharge chamber 7, that is, the discharge chamber 7 where the hydraulic push rod 10 is located is partially isolated by the guide plates 12, 13 and the slider 11, and when the two sliders 11 are in contact in the initial state, the guide plates 12, 13 and the slider 11 on the front and rear sides isolate the discharge chamber 7 from the discharge port mechanism 8. When unloading is required, the receiving port of the receiving container for receiving the granular material is connected to the discharge port mechanism 8. At this time, the corresponding number of receiving containers can be connected according to the number of receiving containers on the receiving side. The discharge port mechanism 8 of the amount is measured, and then the lifting hydraulic mechanism is started to drive the carriage 4 to flip. Under the action of gravity, the granular material moves into the discharge chamber 7, and the granular material contacts the guide plate 12 and the guide plate 2 13. The front and rear hydraulic push rods 10 are started to drive the slider 11 to move, and then the two sliders 11 are separated. At this time, sliding occurs between the free ends of the guide plate 12 and the guide plate 2 13, and the moving distance of the slider 11 is controlled, so that the corresponding discharge port mechanism 8 is connected to the discharge chamber 7, while the discharge port mechanism 8 that is not connected to the receiving container is still separated by the guide plate 12, the guide plate 2 13, and the slider 11. When the two sliders 11 are separated, the guide plates 12 and the guide plates 2 13 on both sides are moved. An "eight" shape is formed to guide the granular material, so that the granular material in the carriage 4 is guided through the guide mechanism 9 in the discharge chamber 7 and discharged from a predetermined number of discharge port mechanisms 8, so that the material in the carriage 4 can be unloaded more conveniently and completely. At the same time, due to the poor flow performance of some granular materials themselves, they are prone to stagnation and flow at the discharge port mechanism 8 under the action of gravity, causing blockage. At this time, the hydraulic push rod 10 can be started to drive the slider 11 to move back and forth, thereby driving the guide plate 12 and the guide plate 2 13 to rotate and deflect, thereby driving the granular material in contact with them to be squeezed and flow, thereby avoiding the problem of blockage of the discharge port mechanism 8 due to the poor flow performance of the granular material.

[0028] Preferably, as attached Figure 3As shown, elastic connecting membranes 16 are provided at the hinges between the guide plate 12 and the slider 11, and at the hinges between the guide plate 2 13 and the inner wall of the rear cover 5. The connecting membranes 16 can be fixed to the guide plate 12, the guide plate 2 13 and the slider 11 by means of screws or the like. The connecting membranes 16 are in contact with the granular material, and the gaps at the hinges are sealed by the connecting membranes 16 to prevent the granular material from entering the gaps at the hinges. Preferably, the connecting membranes 16 can be made of wear-resistant material.

[0029] Preferably, as attached Figure 3 As shown, a slide bar 14 is fixedly connected to the side of the guide plate 12 that contacts the granular material, a slide groove 15 is provided on the guide plate 2 13, the slide bar 14 is slidably connected in the slide groove 15, and the free end of the guide plate 12 is slidably connected to the free end of the guide plate 2 13 through the slide bar 14. Specifically, a downwardly inclined slope 141 is provided above the slide bar 14 to prevent the granular material from accumulating on the slide bar 14.

[0030] Among them, as attached Figure 5-6As shown, as a further improved structure of the guide mechanism 9, a resettable mounting frame 17 is slidably connected in the front and rear walls of the discharge chamber 7. Specifically, a reset spring 18 is fixedly connected between the mounting frame 17 and the discharge chamber 7 to realize its reset function. The second guide plate 13 is hinged on the mounting frame 17. At this time, the connecting film 16 is arranged at the hinge between the second guide plate 13 and the mounting frame 17. A rotatable and resettable rope roll 20 is arranged on the rear cover 5 at the back position where the mounting frame 17 contacts the granular material. The rope roll 20 and the rear cover 5 are connected to each other. A coil spring can be arranged between the guide plates 13 to realize the rotation and reset of the rope roll 20. A positioning column 23 is fixedly arranged in the slide groove 15 near the hinge of the guide plate 13. A connecting rope 22 is fixedly connected to the end of the slide bar 14 away from the guide plate 13. The connecting rope 22 is wound around the rope roll 20 after passing through the positioning column 23. A limiting portion 19 is arranged on the rear cover 5 to limit the mounting frame 17 from moving in the direction of the rope roll 20 and contacting the mounting frame 17. The rope roll 20 is provided with a ratchet 21 rotating coaxially with the ratchet 21. The mounting frame 17 is hinged with a Cooperating with the latching pawl 171, when the slide bar 14 in the guide plate 12 retracts into the slide slot 15, the coil spring in the rope roll 20 drives the connecting rope 22 to contract so that it is always kept in a taut state. At this time, the rotation of the pawl 171 does not restrict the rotation of the ratchet 21. When the slide bar 14 in the guide plate 12 slides out of the slide slot 15, the slide bar 14 pulls the connecting rope 22 to drive the rope roll 20 to rotate, and then drives the ratchet 21 to rotate. Since the ratchet 21 is restricted and latched by the pawl 171 at this time, the ratchet 21 is restricted. When rotating, the ratchet on it pushes the pawl 171, thereby driving the mounting frame 17 to move, and the ratchet on the ratchet wheel 21 continuously pushes the pawl 171, thereby driving the mounting frame 17 to shake, thereby driving the guide plate 12 and the guide plate 2 13 to shake, thereby making the guide plate drive the granular material to flow more effectively. At the same time, when the granular material is about to be completely discharged from the carriage 4, the small amount of residual granular material retained on the guide plate 1 12 and the guide plate 2 13 can be shaken and discharged from the discharge port mechanism 8, thereby making the unloading more complete.

[0031] When unloading is required, the receiving port of the receiving container for receiving the granular material is connected to the discharge port mechanism 8. At this time, the corresponding number of discharge port mechanisms 8 can be connected according to the number of receiving containers on the receiving side. Then, the lifting hydraulic mechanism is started to drive the carriage 4 to flip. Under the action of gravity, the granular material moves into the discharge chamber 7, and the granular material contacts the guide plate 12 and the guide plate 2 13. The front and rear hydraulic push rods 10 are started to drive the slider 11 to move, thereby separating the two sliders 11. At this time, sliding occurs between the free ends of the guide plate 12 and the guide plate 2 13, and the moving distance of the slider 11 is controlled so that the corresponding discharge port mechanism 8 is aligned with the discharge port mechanism 8. The material chambers 7 are connected, while the discharge port mechanism 8 that is not connected to the material receiving container is still separated by the guide plate 1 12, the guide plate 2 13, and the slider 11. When the two sliders 11 are separated, the guide plates 1 12 and the guide plates 2 13 on both sides form an "eight" shape to guide the granular material, so that the granular material in the carriage 4 is guided by the guide mechanism 9 in the discharge chamber 7 and discharged from a predetermined number of discharge port mechanisms 8, so that the material in the carriage 4 can be discharged more conveniently and completely. At the same time, due to the poor flow performance of some granular materials themselves, they are easy to stagnate and flow at the discharge port mechanism 8 under the action of gravity, causing blockage. At this time, the The hydraulic push rod 10 drives the slider 11 to move back and forth, thereby driving the guide plate 12 and the guide plate 2 13 to rotate and deflect, thereby driving the granular materials in contact therewith to be squeezed and flow, thereby avoiding the problem of blockage of the discharge port mechanism 8 due to poor flow performance of the granular materials. At the same time, when the slide bar 14 in the guide plate 12 retracts into the slide groove 15, the coil spring in the rope roll 20 drives the connecting rope 22 to contract so that it is always kept in a taut state. At this time, the pawl 171 rotates without restricting the rotation of the ratchet 21. When the slide bar 14 in the guide plate 12 slides out of the slide groove 15, the slide bar 14 pulls the connecting rope 22 to drive the rope roll 20 The ratchet 21 is restricted and engaged by the pawl 171 at this time, so when the ratchet 21 is restricted from rotating, the ratchet teeth on it push the pawl 171, thereby driving the mounting frame 17 to move, and the ratchet teeth on the ratchet 21 continuously push the pawl 171, thereby driving the mounting frame 17 to shake, thereby driving the guide plate 12 and the guide plate 2 13 to shake, thereby making the guide plate drive the granular material to flow more effectively, and at the same time, when the granular material is about to be completely unloaded from the carriage 4, the small amount of residual granular material retained on the guide plate 12 and the guide plate 2 13 can be shaken and discharged from the discharge port mechanism 8, thereby making the unloading more complete.

Claims

1. A structure for transporting and loading and unloading granular materials used in a bulk trailer, comprising: Trailer floor (1); A support frame (3) is hingedly mounted on the trailer bottom plate (1), wherein an end of the support frame (3) away from the front of the vehicle is hingedly mounted on the trailer bottom plate (1); The telescopic hydraulic rod (2) is arranged on the trailer bottom plate (1) near the front of the trailer, and the telescopic hydraulic push rod (10) is used to drive the support frame (3) to flip backwards; A carriage (4) is fixedly connected to the support frame (3); a rear cover (5) is provided on a side of the carriage (4) away from the front of the vehicle; the rear cover (5) and the carriage (4) are sealed and connected to form a closed cavity in the carriage (4); A feed inlet (6) is fixedly arranged above the rear cover (5), the feed inlet (6) penetrates the outside and the internal cavity of the carriage (4), and a cover (24) is detachably connected to the feed inlet (6); The invention is characterized in that a discharge chamber (7) is provided below the rear cover (5), and two or more discharge port mechanisms (8) for discharging materials are also provided below the rear cover (5), and a guide mechanism (9) is provided in the discharge chamber (7) for guiding the materials in the carriage (4) to be discharged to the designated discharge port mechanism (8).

2. A structure for transporting and loading and unloading granular materials used in a bulk trailer according to claim 1, characterized in that: The discharge port mechanism (8) comprises: A main discharge port (801) is arranged below the rear cover (5), two or more main discharge ports (801) are arranged below the rear cover (5), and the main discharge ports (801) are connected to the discharge chamber (7) and the outside; The secondary discharge port (802) is threadedly connected to the main discharge port (801); the cross-sectional area of ​​the secondary discharge port (802) is smaller than that of the main discharge port (801); the outer edges of the secondary discharge port (802) and the main discharge port (801) are both provided with external threads for connection to the receiving port of a receiving container; and a sealing cover (24) is also provided on the secondary discharge port (802).

3. The structure for transporting and loading and unloading granular materials used in bulk trailers according to claim 1 is characterized in that: A tip portion (501) is provided at the connection portion between the two discharge port mechanisms (8) and the discharge chamber (7), and is used to divert the granular material in the discharge chamber (7) into the two discharge port mechanisms (8).

4. The structure for transporting and loading and unloading granular materials used in a bulk trailer according to claim 3, characterized in that: The discharge chamber (7) is configured as a square structure, and the guide mechanism (9) comprises: A hydraulic push rod (10) is arranged in the discharge chamber (7), and opposite hydraulic push rods (10) are arranged on both the front and rear sides of the discharge chamber (7). The ends of the telescopic rods on the hydraulic push rods (10) are fixedly connected with sliders (11). In an initial state, the sliders (11) on the front and rear sides are in contact with each other, and when the hydraulic push rod (10) drives the slider (11) to move, the right end of the slider (11) is always in contact with the right side wall of the discharge chamber (7); A guide plate 1 (12) is hinged on the slider (11), and the front and rear sliders (11) are both hingedly connected with the guide plate 1 (12); The guide plate 2 (13) is rotatably arranged on the discharge chamber (7), and the guide plate 2 (13) is rotatably arranged on both the front and rear side walls of the discharge chamber (7). The free ends of the guide plate 1 (12) and the guide plate 2 (13) are slidably connected, and the upper and lower ends of the guide plate 1 (12), the guide plate 2 (13) and the slider (11) are in contact with the upper and lower walls of the discharge chamber (7) to isolate the portion of the discharge chamber (7) where the hydraulic push rod (10) is located. When the two sliders (11) are in contact, the guide plates 1 (12), the guide plate 2 (13) and the slider (11) on the front and rear sides isolate the discharge chamber (7) from the discharge port mechanism (8).

5. The structure for transporting and loading and unloading granular materials used in a bulk trailer according to claim 4, characterized in that: The hinged joint between the guide plate 1 (12) and the slider (11) and the hinged joint between the guide plate 2 (13) and the inner wall of the rear cover (5) are both provided with elastic connecting membranes (16) for sealing the gaps at the hinged joints.

6. The structure for transporting and loading and unloading granular materials used in a bulk trailer according to claim 4, characterized in that: A slide bar (14) is fixedly connected to the surface of the guide plate 1 (12) in contact with the granular material, and a slide groove (15) is provided on the guide plate 2 (13). The slide bar (14) is slidably connected in the slide groove (15). The free end of the guide plate 1 (12) is slidably connected to the free end of the guide plate 2 (13) through the slide bar (14), and a downwardly inclined inclined surface (141) is provided above the slide bar (14).

7. A structure for transporting and loading and unloading granular materials used in a bulk trailer according to claim 6, characterized in that: A resettable mounting frame (17) is slidably connected to the front and rear walls of the discharge chamber (7) via a reset spring (18); the second guide plate (13) is hinged on the mounting frame (17); a rotatable reset rope roll (20) is provided on the rear cover (5) at the back side of the mounting frame (17) in contact with the granular material via a coil spring; a positioning column (23) is fixedly provided in the slide groove (15) near the hinge of the second guide plate (13); a connecting rope (22) is fixedly connected to the end of the slide bar (14) away from the second guide plate (13); the connecting rope (22) is wound around the rope roll (20) after passing through the positioning column (23); a limiting portion (10) is provided on the rear cover (5) 9) The mounting frame (17) is restricted from moving in the direction of the rope reel (20) and contacting the mounting frame (17). The rope reel (20) is provided with a ratchet (21) that rotates coaxially therewith. The mounting frame (17) is hinged with a pawl (171) that cooperates with the ratchet (21) and engages with the ratchet (21). When the slide bar (14) in the guide plate (12) retracts into the slide groove (15), the pawl (171) swings and does not restrict the rotation of the ratchet (21). When the slide bar (14) in the guide plate (12) slides out of the slide groove (15), the rotation of the ratchet (21) is restricted and engaged by the pawl (171), and the ratchet teeth thereon push the pawl (171) to drive the mounting frame (17) to move.

Images