Self-resetting dust removal valve device and dust removal equipment

Abstract

The invention discloses a self-reset dust removal valve device and dust removal equipment, and belongs to the technical field of dust removal equipment, the self-reset dust removal valve device comprises a valve body, an automatic reset mechanism and a collision plate, the valve body comprises a shell and a flow guide part, the shell is provided with a circulation cavity and an air inlet, and the flow guide part partially extends into the circulation cavity and is provided with an air outlet channel; the automatic reset mechanism comprises a connecting piece, a heavy hammer and a turning plate, the connecting piece is rotationally connected to the shell, the heavy hammer and the turning plate are both connected to the connecting piece, and the turning plate can seal and cover the air inlet of the air outlet channel; the striking plate is installed on the discharging trolley, the discharging trolley moves in the first direction, the heavy hammer ascends along the first slope to drive the turning plate to rotate so as to open the air inlet, the heavy hammer is located on the peak face, a dust outlet of the discharging trolley communicates with the air inlet, the heavy hammer descends along the second slope, and the heavy hammer drives the turning plate to rotate under the action of gravity so as to seal the air inlet. The dust removal equipment comprises a dust remover, a dust removal pipe and a self-resetting dust removal valve device. The device is high in working efficiency and long in service life.

Description

[0001] The present invention relates to the technical field of dust removal equipment, and particularly to a self-resetting dust removal valve device and a dust removal equipment. Background Art

[0002] In the process of industrial production, material transportation and transfer are essential links. Especially in industries such as metallurgy, building materials, and chemical industries, a large amount of dust is generated when the unloading truck is operating. The dust removal valve is an important dust removal equipment in the dust removal system. By opening and closing the dust removal valve, the input and cut-off of the dust removal air volume at each user point are controlled to meet the dust removal air volume requirements of each user point, and the air volume optimization matching and efficient energy-saving operation of the dust removal system are realized. The traditional valve opens and closes the flap through a motor drive. The motor and the transmission mechanism are prone to failure in a dust environment, and the electrical components have a high risk of short circuit due to metal dust pollution.

[0003] In view of the above problems, the prior art proposes a dust removal valve, which includes a dust removal valve body, a dust removal air duct, and an automatic reset mechanism. The dust removal air duct is laid above the unloading truck and connected to the dust removal valve body at the unloading bin position. The valve flap in the dust removal valve body is connected to the automatic reset mechanism. When the unloading truck moves to the unloading bin position, the bumper plate arranged above the unloading truck impacts the heavy hammer swing rod to open the valve flap, and the dust is sucked into the dust removal main pipe; after the unloading is completed, the unloading truck moves in the reverse direction to separate the touch plate from the heavy hammer swing rod, and the flap is driven to reset and close the valve under the action of the gravity of the heavy hammer counterweight.

[0004] However, although the existing dust removal valve realizes electric-free control through mechanical linkage and solves the electrical fault problem in a dust environment, it still has significant defects: firstly, limited by the one-way triggering mechanism of the touch plate and the swing rod of the dust removal air duct and the automatic reset logic, the unloading truck must execute a fixed process of "forward impact, fixed-point unloading, and reverse car reset", resulting in low work efficiency; secondly, the valve flap relies on the rigid impact of the touch plate on the swing rod to open instantaneously and the sudden pull of the counterweight to close instantaneously, resulting in frequent high-intensity impacts between the flap and the valve seat, which not only aggravates the wear of the sealing parts but also reduces the service life of the equipment. Summary of the Invention

[0005] The purpose of the present invention is to provide a self-resetting dust removal valve device and a dust removal equipment, which have high work efficiency and long service life.

[0006] With the above concept, the technical solution adopted by the present invention is as follows:

[0007] The self-resetting dust removal valve device includes:

[0008] A valve body, including a housing and a flow guide member. The housing is provided with a flow cavity and an air inlet located at the bottom of the housing and communicating with the flow cavity. The flow guide member partially extends into the flow cavity and is provided with an air outlet channel communicating with the flow cavity;

[0009] The automatic reset mechanism includes a connecting piece, a weight, and a flap. The connecting piece is inserted through and rotatably connected to the housing. The weight and the flap are both connected to the connecting piece. The weight is located outside the circulation chamber, and the flap is located inside the circulation chamber and can cover the air inlet of the air outlet channel.

[0010] The striker plate is vertically installed on the unloading truck. The top surface of the striker plate includes a first slope, a peak surface, and a second slope that are connected in sequence. The peak surface is horizontally arranged. The first slope and the second slope slope downward away from each other. When the unloading truck moves in the first direction, the weight contacts and cooperates with the first slope, the peak surface, and the second slope in sequence. When the weight rises along the first slope, it can drive the flap to rotate to open the air inlet. When the weight is located on the peak surface, the dust outlet of the unloading truck is communicated with the air inlet. When the weight descends along the second slope, the weight can drive the flap to rotate under the action of gravity to cover the air inlet.

[0011] Further, the weight includes a connecting rod, a counterweight, and two sets of first bearings. The connecting rod is fixedly connected to the connecting piece. Installation grooves are formed at both ends of the counterweight. The two sets of first bearings are respectively embedded in the two installation grooves. The connecting rod passes through the inner rings of the two first bearings. When the unloading truck moves in the first direction, the counterweight can roll on the first slope, the peak surface, and the second slope in sequence.

[0012] Further, the self-resetting dust removal valve device further includes a seesaw. The seesaw includes a connecting portion and two upturned portions. The connecting portion is fixedly connected to the bottom of the housing and is provided with a communication hole communicated with the air inlet. The two upturned portions are symmetrically arranged at opposite ends of the connecting portion along the first direction and slope upward away from each other.

[0013] Further, the self-resetting dust removal valve device further includes a cover plate. The housing is further provided with an inspection port. The inspection port is communicated with the circulation chamber. The cover plate is detachably connected to the housing and can cover the inspection port.

[0014] Further, a holding member is provided on a side of the cover plate facing away from the inspection port.

[0015] Further, the included angle between the weight and the flap is 110° - 130°.

[0016] Further, the connecting piece includes a connecting shaft and two sets of second bearings. The connecting shaft passes through opposite sides of the housing along the first direction and is rotatably connected to the housing through the two sets of second bearings. The weight and the flap are both fixedly connected to the connecting shaft.

[0017] Further, the flap is made of wear-resistant manganese steel plate.

[0018] A dust removal device, comprising a dust collector, a dust removal pipe, and the self-resetting dust removal valve device as described above. The dust removal pipe is connected to the dust collector, the guide member is connected to the dust removal pipe, and the air outlet channel communicates with the internal channel of the dust removal pipe.

[0019] Further, a plurality of the self-resetting dust removal valve devices are arranged at intervals along the first direction, and each self-resetting dust removal valve device is connected to the dust removal pipe through the guide member.

[0020] Advantages of the present invention:

[0021] For a self-resetting dust removal valve device proposed by the present invention, through the cooperation of the first slope surface, peak surface, and second slope surface sequentially connected on the striker plate and the weight in the automatic reset mechanism, the opening and closing of the flap can be triggered during the process of the unloading truck moving along the first direction, so that the unloading truck can continuously perform round-trip unloading and dust removal operations along the first direction, thereby improving the work efficiency. At the same time, since the weight rises along the first slope surface and descends along the second slope surface, the opening and closing actions of the flap are relatively gentle, avoiding the high-intensity impacts of instantaneously opening with rigid impact and instantaneously closing with sudden pulling of the counterweight, thereby reducing the impact between the flap and the guide member, and further prolonging the service life of the valve device.

[0022] For a dust removal device proposed by the present invention, by using the self-resetting dust removal valve device, efficient opening and closing operations of the valve device can be achieved without manual intervention and electric drive, reducing labor costs and energy consumption. And the unloading truck can continuously perform round-trip operations along the preset track path, improving the work efficiency of the dust removal device. In addition, the gentle opening and closing characteristics of the valve device, that is, the weight starts to gradually remove dust when rising along the first slope surface, reaches the peak surface which is the unloading position, the dust removal valve is fully opened, after the unloading is completed and the unloading truck drives away, the weight moves from the peak surface of the unloading position to the second slope surface, and the dust removal valve starts to gradually close, can avoid the impact of the striker plate on the weight part of the valve and the escape of unloading dust. Description of the drawings

[0023] Figure 1 is the front view of the valve body and the automatic reset mechanism provided by the specific embodiment of the present invention;

[0024] Figure 2 is the top view of the valve body and the automatic reset mechanism provided by the specific embodiment of the present invention;

[0025] Figure 3 is the top view of the self-resetting dust removal valve device provided by the specific embodiment of the present invention in the closed state of the flap;

[0026] Figure 4 1. It is a front view of the self-resetting dust removal valve device provided by a specific embodiment of the present invention in a state where the flap is closed;

[0027] Figure 5 It is a side view of the self-resetting dust removal valve device provided by a specific embodiment of the present invention in a state where the flap is closed;

[0028] Figure 6 1. It is a top view of the self-resetting dust removal valve device provided by a specific embodiment of the present invention with the flap open;

[0029] Figure 7 This is a front view of the self-resetting dust removal valve device provided by a specific embodiment of the present invention with the flap open;

[0030] Figure 8 1. It is a side view of the self-resetting dust removal valve device provided by a specific embodiment of the present invention with the flap open;

[0031] Figure 9 It is a front view of a dust removal device provided by a specific embodiment of the present invention;

[0032] Figure 10 It is a side view of the dust removal equipment provided by a specific embodiment of the present invention.

[0033] In the picture:

[0034] 1. Valve body; 11. Housing; 110. Flow chamber; 111. Inspection port; 12. Flow guide; 120. Air outlet channel;

[0035] 2. Automatic reset mechanism; 21. Connecting member; 211. Connecting shaft; 212. Second bearing; 22. Weight; 221. Connecting rod; 222. Counterweight; 223. First bearing; 23. Flap;

[0036] 3. Impact plate; 31. First slope; 32. Peak; 33. Second slope;

[0037] 4. seesaw; 41. connecting portion; 42. tilting portion;

[0038] 5. Cover plate;

[0039] 6. Grip;

[0040] 100. Unloading vehicle;

[0041] 200. Dust removal pipe. DETAILED DESCRIPTION

[0042] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are merely for explaining the present invention and not for limiting the present invention. Additionally, it should be noted that for the sake of description, only the parts related to the present invention rather than all the structures are shown in the drawings.

[0043] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0046] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific embodiments.

[0047] Such as Figures 1-8As shown in the figure, the present invention provides a self - resetting dust removal valve device, which includes a valve body 1, an automatic reset mechanism 2 and a striker plate 3. The valve body 1 includes a housing 11 and a flow - guiding member 12. The housing 11 is provided with a flow - through cavity 110 and an air inlet located at the bottom of the housing 11 and communicating with the flow - through cavity 110. The flow - guiding member 12 partially extends into the flow - through cavity 110 and is provided with an air outlet passage 120 communicating with the flow - through cavity 110. The automatic reset mechanism 2 includes a connecting member 21, a weight 22 and a flap 23. The connecting member 21 passes through and is rotatably connected to the housing 11. Both the weight 22 and the flap 23 are connected to the connecting member 21. The weight 22 is located outside the flow - through cavity 110, and the flap 23 is located inside the flow - through cavity 110 and can cover the air inlet of the air outlet passage 120. The striker plate 3 is vertically installed on the unloading vehicle 100. The top surface of the striker plate 3 includes a first slope 31, a peak surface 32 and a second slope 33 connected in sequence. The peak surface 32 is horizontally arranged. The first slope 31 and the second slope 32 slope downward away from each other. When the unloading vehicle 100 moves in the first direction, the weight 22 can slide on the first slope 31, the peak surface 32 and the second slope 33 in sequence. When the weight 22 rises along the first slope 31, it can drive the flap 23 to rotate to open the air inlet. When the weight 22 is located on the peak surface 32, the dust outlet of the unloading vehicle 100 communicates with the air inlet. When the weight 22 descends along the second slope 33, the weight 22 can drive the flap 23 to rotate under the action of gravity to cover the air inlet.

[0048] Through the cooperation of the first slope 31, the peak surface 32 and the second slope 33 connected in sequence on the striker plate 3 and the weight 22 in the automatic reset mechanism 2, the opening and closing of the flap can be triggered during the process of the unloading vehicle 100 moving in the first direction, so that the unloading vehicle 100 can sequentially and continuously perform unloading and dust removal operations in the first direction, thereby improving the working efficiency. At the same time, since the weight 22 rises along the first slope 31 and descends along the second slope 33, the opening and closing actions of the flap 23 are relatively gentle, avoiding the high - intensity impacts of instant opening due to rigid impact and instant closing due to sudden pulling of the counterweight, thus reducing the impact between the flap 23 and the flow - guiding member 12, and further prolonging the service life of the dust removal valve device.

[0049] Specifically, as Figure 2 shown, the connecting member 21 includes a connecting shaft 211 and two groups of second bearings 212. The connecting shaft 211 passes through opposite sides of the housing 11 in the first direction and is rotatably connected to the housing 11 through the two groups of second bearings 212. Both the weight 22 and the flap 23 are fixedly connected to the connecting shaft 211. The two groups of second bearings 212 support the connecting shaft 211, effectively dispersing the loads of the weight 22 and the flap 23, reducing the vibration and wear caused by eccentric force, prolonging the service life of the valve device, and ensuring the stability and reliability of the valve device during long - term operation.

[0050] In this embodiment, two sets of second bearings 212 are respectively installed on opposite side walls of the housing 11. The inner ring of the second bearing 212 is in interference fit with the connecting shaft 211, thereby realizing the rotational connection between the connecting shaft 211 and the housing 11.

[0051] Specifically, the weight 22 includes a connecting rod 221, a counterweight 222 and two sets of first bearings 223. The connecting rod 221 is fixedly connected to the connecting member 21. Installation grooves are formed at both ends of the counterweight 222. The two sets of first bearings 223 are respectively embedded in the two installation grooves in one-to-one correspondence. The connecting rod 221 passes through the inner rings of the two sets of first bearings 223. When the unloader 100 moves in the first direction, the counterweight 222 can roll on the first slope 31, the peak surface 32 and the second slope 33 in sequence. The rolling contact reduces the movement resistance, enabling the weight 22 to move along the slope more smoothly and ensuring that the opening and closing actions of the flap 23 are more stable and reliable. Secondly, the rolling friction effectively reduces the wear of the contact surface and extends the service life of the striker plate 3 and the counterweight 222.

[0052] In this embodiment, the counterweight 222 is a cylinder with a diameter of 200 - 350 mm.

[0053] Specifically, the included angle between the weight 22 and the flap 23 is 110° - 130°. When the included angle is 110° - 130°, the weight 22 extends outward from the valve body 1 in the initial state, effectively avoiding interference with the periphery of the valve body 1, and at the same time leaving sufficient operating space for the striker plate 3 provided on the unloader 100.

[0054] In this embodiment, the included angle between the weight 22 and the flap 23 is 120°, and the weight 22 rotates 60° when sliding from the first slope 31 to the peak surface 32. At this time, the flap 23 rotates to the vertical state.

[0055] Specifically, the flap 23 is made of wear-resistant manganese steel plate. The wear-resistant manganese steel plate has extremely high hardness and wear resistance. During the frequent opening and closing process, the flap 23 can effectively resist impacts, reduce surface wear and scratches, and thereby reduce the replacement frequency and maintenance cost of the equipment caused by component wear.

[0056] Specifically, as Figure 3 shown, the first slope 31 and the second slope 33 are symmetrically arranged. This makes the movement trajectory of the weight 22 more regular, and the opening and closing strokes, speeds and times of the flap 23 are equal.

[0057] Specifically, as Figure 4As shown, the self-resetting dust removal valve device further includes a seesaw 4. The seesaw 4 includes a connecting portion 41 and two upturned portions 42. The connecting portion 41 is fixedly connected to the bottom of the housing 11 and is provided with a communication hole communicating with the air inlet. The two upturned portions 42 are symmetrically arranged at opposite ends of the connecting portion 41 along the first direction and are inclined upward away from each other. When the unloading truck 100 approaches the dust removal valve device, the upturned portions 42 can guide the traveling direction of the unloading truck 100 in advance, preventing the unloading truck 100 from directly colliding with the dust removal valve device due to traveling deviation, thereby effectively protecting the unloading truck 100 and the dust removal valve device, reducing equipment damage and shutdown maintenance caused by collisions, and further improving the safety and continuity in the industrial production process.

[0058] In this embodiment, the seesaw 4 is welded to the bottom of the housing 11.

[0059] In other embodiments, the seesaw 4 can also be installed on the bottom of the housing 11 by bolts.

[0060] Specifically, as Figure 1 and Figure 4 shown, the self-resetting dust removal valve device further includes a cover plate 5. The housing 11 is further provided with an inspection opening 111. The inspection opening 111 communicates with the flow cavity 110. The cover plate 5 is detachably connected to the housing 11 and can cover the inspection opening 111. Maintenance personnel can observe the operating status of key components such as the flap 23 inside the flow cavity 110 through the inspection opening 111 by removing the cover plate 5, facilitating the timely discovery of abnormalities.

[0061] In this embodiment, an annular mounting flange is provided circumferentially around the inspection opening 111. The cover plate 5 has a connecting flange at the corresponding position that matches the mounting flange. The mounting flange and the connecting flange are reliably connected by uniformly distributed fastening bolts.

[0062] More specifically, a gripping member 6 is provided on the side of the cover plate 5 facing away from the inspection opening 111. The staff can lift the cover plate 5 through the gripping member 6, avoiding scratches that may be caused by directly contacting the edge of the cover plate 5 and reducing the operation risk. Moreover, compared with directly contacting the cover plate 5, the gripping member 6 can better disperse the force on the hand and is not prone to fatigue during long-term operation.

[0063] The working principle of the self-resetting dust removal valve device is as follows:

[0064] In the initial state, referring to Figures 3-5, under the action of the gravity of the weight 22, the flap 23 of the self-resetting dust removal valve device tightly seals the air inlet of the air outlet channel 120. When the unloading truck 100 moves in the first direction, the bumper 3 on the truck gradually approaches the valve device. The first slope 31 on the top surface of the bumper 3 first contacts the weight 22. As the unloading truck 100 continues to move forward, the weight 22 rises along the first slope 31, driving the connecting shaft 211 to rotate, and then causing the flap 23 to rotate synchronously, gradually opening the air inlet of the air outlet channel 120. When the weight 22 moves to the peak surface 32 of the bumper 3, refer to Figures 6-8 , the air inlet is fully opened. At this time, the dust outlet of the unloading truck 100, the air inlet of the self-resetting dust removal valve device, and the air outlet channel 120 are connected in sequence to form a dust conveying path. The unloading truck 100 continues to move, and the weight 22 descends along the second slope 33 of the bumper 3. Under the action of gravity, the weight 22 drives the connecting shaft 211 to rotate in the reverse direction, causing the flap 23 to re-cover the air inlet of the air outlet channel 120, cutting off the dust conveying path, preventing the dust collector from continuously sucking in external air during non-unloading periods, and reducing energy consumption waste.

[0065] As Figure 9 and Figure 10 shown, the present invention also provides a dust removal device, including a dust collector, a dust removal pipe 200, and the above-mentioned self-resetting dust removal valve device. The dust removal pipe 200 is connected to the dust collector, the guiding member 12 is connected to the dust removal pipe 200, and the air outlet channel 120 communicates with the internal channel of the dust removal pipe 200. When the weight 22 moves to the peak surface 32 of the bumper 3, the air inlet is fully opened. At this time, the dust outlet of the unloading truck 100, the air inlet of the self-resetting dust removal valve device, the air outlet channel 120, and the internal channel of the dust removal pipe 200 are connected in sequence to form a complete dust conveying path. During the unloading process, the generated dust, under the action of the negative pressure suction of the dust collector, quickly enters the dust removal pipe 200 through the air inlet and the air outlet channel 120, and is finally transported to the dust collector for purification treatment. By using the self-resetting dust removal valve device, the dust removal device can achieve efficient opening and closing operations of the valve device without manual intervention and electric drive, reducing labor costs and energy consumption. And the unloading truck 100 can continuously move back and forth along the preset track path, improving the overall working efficiency. In addition, the gentle opening and closing characteristics of the valve device, that is, the weight starts to gradually remove dust when rising along the first slope, reaches the peak surface which is the unloading position, the dust removal valve is fully opened, and after the unloading is completed and the unloading truck drives away, the weight moves from the peak surface of the unloading position to the second slope, and the dust removal valve starts to gradually close, can avoid the impact of the bumper on the unloading truck on the weight part of the valve and the escape of unloading dust.

[0066] In this embodiment, the guiding member 12 is connected to the dust removal pipe 200 by a flange.

[0067] Specifically, a plurality of self-resetting dust removal valve devices are arranged at intervals along the first direction on the dust removal device, and each self-resetting dust removal valve device is connected to the dust removal pipe 200 through a diversion member 12. First of all, this setting realizes sequential reciprocating discharging and dust removal at multiple discharging stations, greatly improving the throughput and continuity of the discharging operation, and significantly increasing the amount of materials processed per unit time. Secondly, each valve device operates independently and shares the dust removal pipe 200, reducing the repeated configuration of the dust removal device, saving installation and maintenance costs, and making the system layout more compact, effectively reducing the site occupation.

[0068] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Self-resetting dust removal valve device, characterized in that, include: A valve body (1) comprises a housing (11) and a flow guide (12); the housing (11) is provided with a circulation cavity (110) and an air inlet located at the bottom of the housing (11) and connected to the circulation cavity (110); the flow guide (12) partially extends into the circulation cavity (110) and is provided with an air outlet channel (120) connected to the circulation cavity (110); An automatic reset mechanism (2) comprises a connecting member (21), a weight (22) and a flap (23), wherein the connecting member (21) is passed through and rotatably connected to the housing (11), the weight (22) and the flap (23) are both connected to the connecting member (21), the weight (22) is located outside the circulation cavity (110), and the flap (23) is located inside the circulation cavity (110) and can cover the air inlet of the air outlet channel (120); The impact plate (3) is vertically mounted on the unloading vehicle (100), and the top surface of the impact plate (3) includes a first slope surface (31), a peak surface (32) and a second slope surface (33) connected in sequence, the peak surface (32) is horizontally arranged, and the first slope surface (31) and the second slope surface (32) are inclined downward in a direction away from each other. When the unloading vehicle (100) moves in a first direction, the weight (22) is in contact with the first slope surface (31), the peak surface (32) and the second slope surface (33) in sequence. The second slope (33) is in contact and fit, and when the weight (22) rises along the first slope (31), it can drive the flap (23) to rotate to open the air inlet. When the weight (22) is located at the peak surface (32), the dust outlet of the unloading vehicle (100) is connected to the air inlet. When the weight (22) descends along the second slope (33), the weight (22) can drive the flap (23) to rotate under the action of gravity to cover the air inlet.

2. The self-resetting dust removal valve device according to claim 1, characterized in that, The weight (22) includes a connecting rod (221), a counterweight (222) and two first bearings (223). The connecting rod (221) is fixedly connected to the connecting member (21). Both ends of the counterweight (222) are provided with mounting grooves. The two first bearings (223) of the two plates are embedded in the two mounting grooves in a one-to-one correspondence. The connecting rod (221) is passed through the inner rings of the two first bearings (223). When the unloading vehicle (100) moves along the first direction, the counterweight (222) can roll on the first slope (31), the peak surface (32) and the second slope (33) in sequence.

3. The self-resetting dust removal valve device according to claim 1, characterized in that, The self-resetting dust removal valve device further comprises a seesaw (4), the seesaw (4) comprising a connecting portion (41) and two tilting portions (42), the connecting portion (41) being fixedly connected to the bottom of the housing (11) and provided with a connecting hole connected to the air inlet, the two tilting portions (42) being symmetrically arranged at opposite ends of the connecting portion (41) along the first direction and tilted upward in a direction away from each other.

4. The self-resetting dust removal valve device according to claim 1, characterized in that, The self-resetting dust removal valve device further includes a cover plate (5). The outer shell (11) is further provided with an inspection port (111), and the inspection port (111) communicates with the flow cavity (110). The cover plate (5) is detachably connected to the outer shell (11) and can cover the inspection port (111).

5. The self-resetting dust removal valve device according to claim 4, wherein A holding member (6) is provided on a side of the cover plate (5) facing away from the inspection port (111).

6. The self-resetting dust removal valve device according to claim 1, wherein The included angle between the weight (22) and the flap (23) is 110° - 130°.

7. The self-resetting dust removal valve device according to any one of claims 1-6, characterized in that, The connecting member (21) includes a connecting shaft (211) and two sets of second bearings (212). The connecting shaft (211) penetrates through opposite sides of the outer shell (11) along the first direction and is rotatably connected to the outer shell (11) through the two sets of second bearings (212). The weight (22) and the flap (23) are both fixedly connected to the connecting shaft (211).

8. The self-resetting dust removal valve device according to any one of claims 1-6, characterized in that, The flap (23) is made of wear-resistant manganese steel plate.

9. Dust removal equipment, characterized in that, It includes a dust collector, a dust removal pipe (200), and the self-resetting dust removal valve device according to any one of claims 1 - 8. The dust removal pipe (200) is connected to the dust collector. The flow guiding member (12) is connected to the dust removal pipe (200), and the air outlet passage (120) communicates with the internal passage of the dust removal pipe (200).

10. The dust removal device according to claim 9, characterized in that, A plurality of the self-resetting dust removal valve devices are arranged at intervals along the first direction on the dust removal equipment, and each self-resetting dust removal valve device is connected to the dust removal pipe (200) through the flow guiding member (12).

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