Dust collecting bag with stretching structure

Abstract

The utility model discloses a dedusting cloth bag with a stretching structure, which relates to the technical field of cloth bag dedusting and comprises a mounting plate, a stretching mechanism is fixedly mounted in the middle of the front of the mounting plate, a fixing frame is fixedly mounted at the upper end of the mounting plate, and a top ring is fixedly mounted at the front end of the fixing frame. And a cloth bag body is fixedly mounted at the bottom of the top ring. By adopting the structure and arranging the cleaning mechanism, the device can effectively clean the outer surface of the cloth bag body, avoid the blockage phenomenon and improve the dustproof covering cleaning capacity, the electric push rod pushes the mounting frame to move up and down, so that the gear ring and the transmission gear move along with the mounting frame, and the transmission gear is driven to rotate through the guide screw rod; and in the up-down displacement process, the ash removal brush plate rotates, the powerful ash removal function is achieved, the overall ash removal capacity is improved, and efficient filtering, dust removal and screening are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bag dust removal, and particularly relates to a dust removal bag with a stretching structure. Background Art

[0002] Dust bags, also known as dust filter bags or bag filter bags, are the core components of bag dust collectors during operation. They are usually cloth or felt woven from synthetic fibers, natural fibers or glass fibers. The main function of dust bags is to capture dust, and they are a key link in the dust filtration system. Dust bags are designed to effectively collect dust and particulate matter generated from industrial processes, ensuring that these harmful substances are not discharged into the atmosphere, thereby protecting the environment and complying with relevant emission standards. They are installed inside the dust collector. When dust-laden gas passes through the dust collector, the dust bags intercept and retain these particulate matter, while clean gas passes through the bags and is discharged into the atmosphere;

[0003] A Chinese patent with the announcement number "CN220026357U" discloses a dust removal frame with a stretched fixed structure, which includes a horizontal axis of a supporting frame; each set of four horizontal axes is fixedly installed between two sets of positioning sleeves by means of bushings, and adjacent positioning sleeves are fixedly docked by means of docking nuts, a bag hole is reserved in the center of the positioning sleeve, and a dust bag is horizontally sleeved in the bag hole; a bag anti-expansion mechanism is installed between the horizontal axes with the same vertical axis, and the bag anti-expansion mechanism is in tight contact with the dust bag. The utility model adopts a follow-up anti-expansion dust removal frame; the dust removal frame of the present application adopts a rubber belt to follow up with the friction of the dust bag spraying, so the technical problem of dust bag wear can be solved; at the same time, the front and rear positioning sleeves of the frame structure can be used as a plug-in structure, which can be flexibly combined compared with the previous fixed-length frame;

[0004] During use, the above-mentioned device can cooperate with the dust-proof bag to spray and rub, but in its specific use process, it lacks a stretching structure, and the bag will change with the change of wind pressure. The bag is prone to wrinkles, and then the folds are wrinkled together with the change of wind pressure, which can easily affect its filtering efficiency. In addition, during its use, dust is very easy to adhere to the outer surface of the bag, which can easily cause the bag to be blocked. It can be seen that its overall use has certain defects and shortcomings, so it needs to be improved. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a dust removal bag with a stretching structure to solve the problems raised by the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A dust collecting bag with a stretching structure comprises a mounting plate, a stretching mechanism is fixedly mounted on the middle part of the front face of the mounting plate, a fixing frame is fixedly mounted on the upper end of the mounting plate, a top ring is fixedly mounted on the front end of the fixing frame, a bag body is fixedly mounted on the bottom of the top ring, a bottom frame is fixedly mounted on the bottom of the front face of the mounting plate, an electric push rod is fixedly mounted on the front end of the bottom frame, a mounting ring is fixedly mounted on the top of the electric push rod, the mounting ring is sleeved on the outside of the bag body, a cleaning mechanism is movably mounted on the bottom of the mounting ring, the bag body is arranged on the inner side of the cleaning mechanism, a buffer mechanism is fixedly mounted on the front face of the stretching mechanism, the top of the buffer mechanism is fixedly connected to the bottom of the bag body, and the bag body can be stretched up and down and stretched by the cooperation of components such as a driving motor and a screw rod, and this design makes the bag body The bag body can be flexibly adjusted according to different working requirements, which improves its adaptability and filtration efficiency. The electric push rod drives the mounting ring and the cleaning mechanism to move up and down. At the same time, the rotation of the gear ring and the transmission gear drives the cleaning brush plate to rotate. This design enables the cleaning brush plate to effectively brush and clean the outer surface of the bag body during the up and down displacement, thereby avoiding clogging of the bag and ensuring the filtration effect. By setting a buffer spring, a buffering effect can be provided when the bag body is affected by wind pressure, thereby improving the stability of the bag body. The buffer mechanism is fixedly connected to the bottom of the bag body to ensure that the bag body can remain stable during the stretching and cleaning process to prevent shaking and breakage. The design of the mounting plate, fixing frame, base frame and other components makes the entire device structure stable and easy to install and maintain. At the same time, the connection and cooperation between the various components are tight, which ensures the stability and reliability of the device during operation.

[0008] As an optimal technical solution, the stretching mechanism includes a guide rail, which is fixedly installed on the middle part of the front side of the mounting plate, and the guide rail is rotatably connected to a screw rod inside, and a driving motor is fixedly installed on the bottom of the guide rail, and the output end of the driving motor is fixedly connected to the bottom of the screw rod, and the outer surface of the screw rod is threadedly connected to a slider, and the slider is slidably connected to the inner side of the guide rail, and the front side of the slider is fixedly connected to the buffer mechanism. By setting up the stretching mechanism, the buffer mechanism can be adjusted to move up and down to pull the bag body during use, which can cause the bag body to be in a taut state and can freely stretch the bag body, thereby improving the adaptability of the overall bag dust removal of the device.

[0009] As an optimal technical solution, the buffer mechanism includes a bottom ring, which is fixedly installed on the front side of the slider, and buffer springs are fixedly installed at equal intervals on the top of the bottom ring, and a fixing ring is fixedly installed on the top of the buffer spring. The top of the fixing ring is fixedly connected to the bottom of the bag body. By arranging the top of the bottom ring and the buffer spring in conjunction with the fixing ring, the service life and stability of the bag body can be improved.

[0010] As a preferred technical solution, support rods are fixedly installed at equal intervals on the bottom of the fixed ring, the bottom of the support rods passes through the bottom ring, and the buffer springs are all sleeved on the outer surface of the support rods. By arranging the support rods, the buffer springs can be auxiliary supported and reinforced by the support rods during use, which can avoid lateral shaking of the buffer springs and improve the overall stability of the device.

[0011] As a preferred technical solution, the cleaning mechanism includes a guide screw rod, a mounting frame and a gear ring, the guide screw rod is fixedly mounted on both sides of the top of the base frame, the mounting frame is fixedly mounted on the outside of the mounting ring, the bottom of the mounting frame is also fixedly connected to the top of an electric push rod, the gear ring is rotatably connected to the bottom of the mounting ring, and a cleaning brush plate is fixedly installed at an equal interval on the bottom of the gear ring, the inner side of the cleaning brush plate is fitted and connected to the outer surface of the bag body, both ends of the mounting frame are rotatably connected with a transmission gear, the transmission gear is meshed with the gear ring, a reserved groove is opened in the middle of the transmission gear, and the guide The spiral rod is movably connected to the inside of the reserved groove. By setting up a cleaning mechanism, the device can be used during use. By starting the electric push rod, the electric push rod can assist in pushing the mounting ring to move up and down. At this time, the transmission gear is driven to rotate by squeezing the guide spiral rod. The rotation of the transmission gear can drive the gear ring at the bottom of the mounting ring to rotate. The rotation of the mounting ring can assist in driving the cleaning brush plate to rotate. At this time, the cleaning brush plate can be assisted in rotating and moving up and down at the same time, which can improve the cleaning ability of the device on the whole bag body, enable the device as a whole to have efficient cleaning performance, and maintain the filtering and dust prevention function for a long time.

[0012] As a preferred technical solution, mounting holes are provided at the four corners of the mounting plate, and the mounting holes are configured as countersunk holes. By providing the mounting holes, bolts can be used to assist in fixing the mounting plate during use.

[0013] As a preferred technical solution, the overall cross-sectional shape of the inner side of the slider and the guide rail is set to a convex shape, and the overall external edges and corners of the mounting plate, guide rail, base frame and mounting frame are set to an arc shape. The convex-shaped slider and guide rail can improve the stability of the slider displacement sliding on the inner side of the guide rail, and the overall external edges and corners of the mounting plate, guide rail, base frame and mounting frame are set to an arc shape, which can improve the external flatness of the mounting plate, guide rail, base frame and mounting frame, and can improve the overall stability and convenience of use of the device.

[0014] In summary, the utility model mainly has the following beneficial effects:

[0015] First, by setting a stretching mechanism, the device can flexibly adjust the stretching degree of the bag body to meet different dust removal requirements. The driving motor drives the screw to rotate, so that the slider slides in the guide rail, thereby stretching the bag body. At the same time, the setting of the buffer spring can assist in buffering the impact of wind pressure on the bag body and enhance stability. The support rod plays the role of supporting and reinforcing the fixing ring to prevent the buffer spring from shaking, thereby further improving the stability of the bag body.

[0016] Second, by setting up a cleaning mechanism, the device can effectively clean the outer surface of the bag body, avoid clogging, and improve the dust-proof covering and cleaning capabilities. The electric push rod pushes the mounting frame up and down, causing the gear ring and the transmission gear to move accordingly, and drives the transmission gear to rotate through the guide screw rod, thereby driving the gear ring and the cleaning brush plate to rotate. During the up and down displacement process, the cleaning brush plate rotates by itself to achieve a strong cleaning function, improve the overall cleaning capability, and achieve efficient filtering, dust removal and screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the stretching mechanism structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the electric push rod, mounting frame and transmission gear structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the buffer mechanism and the cleaning mechanism of the utility model.

[0021] 1. Mounting plate; 2. Stretching mechanism; 21. Guide rail; 22. Screw rod; 23. Driving motor; 24. Slider; 3. Fixed frame; 4. Mounting ring; 5. Cleaning mechanism; 51. Guide screw rod; 52. Mounting frame; 53. Gear ring; 54. Cleaning brush plate; 55. Transmission gear; 56. Reserved groove; 6. Base frame; 7. Electric push rod; 8. Cloth bag body; 9. Buffer mechanism; 91. Bottom ring; 92. Buffer spring; 93. Fixed ring; 94. Support rod; 10. Mounting hole; 11. Top ring. DETAILED DESCRIPTION

[0022] Example

[0023] refer to Figures 1 to 4The dust removal bag with a stretching structure described in this embodiment includes a mounting plate 1, a stretching mechanism 2 is fixedly installed in the middle of the front of the mounting plate 1, a fixing frame 3 is fixedly installed on the upper end of the mounting plate 1, a top ring 11 is fixedly installed at the front end of the fixing frame 3, and a bag body 8 is fixedly installed at the bottom of the top ring 11, a bottom frame 6 is fixedly installed at the bottom of the front of the mounting plate 1, an electric push rod 7 is fixedly installed at the front end of the bottom frame 6, a mounting ring 4 is fixedly installed on the top of the electric push rod 7, the mounting ring 4 is sleeved on the outside of the bag body 8, a cleaning mechanism 5 is movably installed at the bottom of the mounting ring 4, and the bag body 8 is arranged on the inner side of the cleaning mechanism 5, a buffer mechanism 9 is fixedly installed on the front of the stretching mechanism 2, and the top of the buffer mechanism 9 is fixedly connected to the bottom of the bag body 8, and the bag body 8 is stretched by the stretching operation, and the cooperation of the driving motor 23 and the screw rod 22 and other components is realized to realize the up and down sliding and stretching of the bag body 8. This design makes the bag body 8 can be flexibly adjusted according to different working requirements, which improves its adaptability and filtration efficiency. The electric push rod 7 drives the mounting ring 4 and the cleaning mechanism 5 to move up and down. At the same time, the rotation of the gear ring 53 and the transmission gear 55 drives the cleaning brush plate 54 to rotate. This design enables the cleaning brush plate 54 to effectively brush and clean the outer surface of the bag body 8 during the up and down displacement, thereby avoiding clogging of the bag and ensuring the filtration effect. By setting the buffer spring 92, a buffering effect can be provided when the bag body 8 is affected by wind pressure, thereby improving the stability of the bag body 8. The buffer mechanism 9 is fixedly connected to the bottom of the bag body 8 to ensure that the bag body 8 can remain stable during the stretching and cleaning process to prevent shaking and breakage. The design of the mounting plate 1, the fixing frame 3, the base frame 6 and other components makes the entire device structure stable and easy to install and maintain. At the same time, the connection and cooperation between the various components are tight, which ensures the stability and reliability of the device during operation.

[0024] refer to Figure 1-Figure 2 The stretching mechanism 2 includes a guide rail 21, which is fixedly installed in the middle of the front side of the mounting plate 1. A lead screw 22 is rotatably connected inside the guide rail 21. A driving motor 23 is fixedly installed at the bottom of the guide rail 21. The output end of the driving motor 23 is fixedly connected to the bottom of the lead screw 22. A slider 24 is threadedly connected to the outer surface of the lead screw 22. The slider 24 is slidably connected to the inner side of the guide rail 21. The front side of the slider 24 is fixedly connected to the buffer mechanism 9. By setting the stretching mechanism 2, the device can be operated by starting the driving motor 23 during use. The driving motor 23 drives the lead screw 22 to drive the slider 24 to slide up and down inside the guide rail 21. The slider 24 slides to assist in driving the buffer mechanism 9 to move downward. By pulling the bag body 8 by the buffer mechanism 9, the bag body 8 can be in a taut state, and the bag body 8 can be freely stretched, which can improve the adaptability of the overall bag dust removal of the device.

[0025] refer to Figure 4The buffer mechanism 9 includes a bottom ring 91, which is fixedly installed on the front side of the slider 24. Buffer springs 92 are fixedly installed at equal intervals on the top of the bottom ring 91. A fixing ring 93 is fixedly installed on the top of the buffer spring 92. The top of the fixing ring 93 is fixedly connected to the bottom of the bag body 8. By arranging the top of the bottom ring 91 and the buffer spring 92 in coordination with the fixing ring 93, the elastic force of the buffer spring 92 can be caused to act on the bag body 8, which can cause the bag body 8 to have better buffering performance during use and improve the service life and stability of the bag body 8.

[0026] refer to Figure 4 , support rods 94 are fixedly installed at equal intervals at the bottom of the fixing ring 93, the bottom of the support rods 94 passes through the bottom ring 91, and the buffer springs 92 are all sleeved on the outer surface of the support rods 94. The function of the support rods 94: the support rods 94 are fixed at equal intervals at the bottom of the fixing ring 93, and their bottoms pass through the bottom ring 91. The main purpose of this design is to enhance the stability of the buffer springs 92. Since the buffer springs 92 need to withstand the force generated by the bag body 8 when it is stretched and subjected to wind pressure, if there is no proper support, they may shake sideways, thereby affecting the stability of the bag body 8, and the buffer The spring 92 is sleeved on the outer surface of the support rod 94, so that the support rod 94 can provide a stable support for the buffer spring 92. When the bag body 8 is stretched or subjected to wind pressure, the buffer spring 92 will generate elastic force, and these forces will be effectively dispersed and fixed by the support rod 94, preventing the lateral shaking of the buffer spring 92. By setting the support rod 94, the overall stability performance of the device is significantly improved. The support rod 94 not only reinforces the buffer spring 92, but also indirectly enhances the stability of the bag body 8, which is crucial to ensuring the continuity and efficiency of the dust removal bag during operation.

[0027] refer to Figure 1 and Figure 4The cleaning mechanism 5 includes a guide screw rod 51, a mounting frame 52 and a gear ring 53. The guide screw rod 51 is fixedly mounted on both sides of the top of the base frame 6, the mounting frame 52 is fixedly mounted on the outside of the mounting ring 4, and the bottom of the mounting frame 52 is also fixedly connected to the top of the electric push rod 7. The gear ring 53 is rotatably connected to the bottom of the mounting ring 4. The bottom of the gear ring 53 is fixedly installed with a cleaning brush plate 54 at equal intervals. The inner side of the cleaning brush plate 54 is fitted and connected to the outer surface of the bag body 8. Both ends of the mounting frame 52 are rotatably connected with a transmission gear 55, and the transmission gear 55 is meshed with the gear ring 53. The transmission gear A reserved groove 56 is provided in the middle of 55, and the guide screw rod 51 is movably connected to the inside of the reserved groove 56. By setting the cleaning mechanism 5, the guide screw rod 51 is fixedly installed on both sides of the top of the bottom frame 6, playing a key driving role. When the mounting frame 52 moves up and down with the electric push rod 7, the guide screw rod 51 drives the transmission gear 55 to rotate through the interaction with the reserved groove 56. This design cleverly converts linear motion into rotational motion, providing power for the dust cleaning process. The mounting frame 52 is fixed to the outside of the mounting ring 4 and connected to the top of the electric push rod 7, ensuring the stability of the dust cleaning mechanism. During operation, the gear ring 53 is rotatably connected to the bottom of the mounting ring 4, and cleaning brush plates 54 are fixed at equal intervals at the bottom thereof, so that the rotation of the gear ring 53 can directly drive the cleaning brush plates 54 to clean, and the inner side of the cleaning brush plates 54 is tightly fitted with the outer surface of the bag body 8, ensuring the maximization of the cleaning effect. When the cleaning brush plates 54 rotate with the gear ring 53 and move up and down, the dust and particulate matter on the surface of the bag body 8 can be effectively removed to keep the bag clean and the filtering efficiency. The transmission gear 55 is meshed and connected with the gear ring 53, and the rotation of the gear ring 53 and the cleaning brush plates 54 are driven by the rotation of the transmission gear 55. The reserved groove 56 is designed so that the guide screw rod 51 can move smoothly therein, thereby driving the transmission gear 55 to rotate. This design is simple and efficient, and provides a stable power source for the cleaning process. By starting the electric push rod 7, the entire cleaning mechanism 5 can work together to realize the rotation and up and down movement of the cleaning brush plate 54. This composite motion mode greatly improves the cleaning effect, and enables the bag body 8 to maintain a high-efficiency filtering and dust-proof function for a long time. At the same time, the cleaning mechanism 5 has a simple structure and is easy to maintain, providing an efficient and reliable solution for the field of industrial dust removal.

[0028] refer to Figure 1 and Figure 2 The four corners of the mounting plate 1 are provided with mounting holes 10, and the mounting holes 10 are set as countersunk holes. By setting the mounting holes 10, the mounting plate 1 can be fixed with bolts through the mounting holes 10 during use. During use, the mounting holes 10 are set as countersunk holes, which can assist in accommodating the ends of the bolts, making it convenient to use the device.

[0029] refer to Figure 1-Figure 3, the overall cross-sectional shape of the slider 24 and the inner side of the guide rail 21 are all set to a convex shape, and the overall external corners of the mounting plate 1, the guide rail 21, the base frame 6 and the mounting frame 52 are all set to an arc shape. The convex-shaped slider 24 and the guide rail 21 can improve the stability of the slider 24 sliding on the inner side of the guide rail 21. The convex-shaped slider 24 and the guide rail 21 design: by setting the overall cross-sectional shape of the slider 24 and the inner side of the guide rail 21 to a convex shape, the stability of the slider 24 sliding on the inner side of the guide rail 21 is significantly improved. The convex-shaped design makes the contact area between the slider 24 and the guide rail 21 larger and more evenly distributed, thereby reducing the shaking or offset caused by uneven force. In addition, the convex-shaped structure also has a certain guiding effect, so that the slider 24 can maintain the correct direction and trajectory during the sliding process, further enhancing the sliding stability, the arc-shaped external corner design, the mounting plate 1, the guide rail 21 The overall external corners of the base frame 6 and the mounting frame 52 are all set to be arc-shaped. This design not only improves the external flatness of these components, but also enhances the overall stability and convenience of the device. The arc-shaped design can effectively reduce the bumps or scratches that may be caused by overly sharp edges, and also helps to reduce stress concentration and improve the strength and durability of the components. In addition, the arc-shaped appearance also makes the entire device look more beautiful and harmonious, and enhances the overall visual effect. The overall effect: these shape optimization measures work together to make the entire device more stable and reliable during use, and the operation is more convenient. Whether it is the sliding process of the slider 24 or the installation and maintenance process of the entire device, these designs have become smoother and more efficient. At the same time, these designs also take into account the safety and aesthetics of the device, making the device not only powerful, but also more comfortable and reliable to use.

[0030] Principle and advantages of use: By setting the stretching mechanism 2, the device can be operated by starting the driving motor 23 during use, and the driving motor 23 drives the screw rod 22 to rotate, that is, the screw rod 22 drives the slider 24 to slide inside the guide rail 21, and the slider 24 slides up and down inside the guide rail 21, which can assist in pulling the bag body 8 into a stretched state. After the bag body 8 is stretched, the buffer spring 92 on the bottom ring 91 can be used to pull the fixing ring 93, so that the elastic force of the buffer spring 92 acts on the bag body 8, which can enable the bag body 8 to flexibly adjust the stretching degree according to the dust removal needs. At the same time, the buffer spring 92 is set to assist in buffering when the bag body 8 is affected by wind pressure, which can enable the bag body 8 of the device to have better stability. The setting of the support rod 94 can assist in supporting and reinforcing the fixing ring 93, avoid lateral shaking of the buffer spring 92, and improve the overall stability of the bag body 8.

[0031] By setting up the cleaning mechanism 5, during the use of the device, the electric push rod 7 can be started to draw the card to push the mounting frame 52 to drive the mounting ring 4 to move up and down, and the up and down movement of the mounting frame 52 can assist in pushing the gear ring 53 and the transmission gear 55 to move up and down. Since the transmission gear 55 is threadedly connected with the guide screw rod 51 through the reserved groove 56, as the transmission gear 55 moves up and down, the guide screw rod 51 does not move. At this time, the transmission gear 55 can be driven to rotate by the guide screw rod 51, and the transmission gear 55 and the gear ring 53 are meshed and connected, so that The gear ring 53 is driven to rotate by the transmission gear 55. During this period, as the electric push rod 7 pushes the cleaning brush plate 54 to move up and down, it can assist in brushing and cleaning the outer surface of the bag body 8. The gear ring 53 drives the cleaning brush plate 54 to further rotate, which can cause the cleaning brush plate 54 to rotate during the up and down displacement process, so that the device has a stronger cleaning function, can improve the overall cleaning ability of the device, avoid the bag body 8 from being blocked, can improve its overall dust-proof covering cleaning ability, and realize the first-class filtering, dust removal and screening.

Claims

1. A dust removal bag with a tensile structure, comprising a mounting plate (1), characterized in that: A stretching mechanism (2) is fixedly mounted on the middle of the front of the mounting plate (1); a fixing frame (3) is fixedly mounted on the upper end of the mounting plate (1); a top ring (11) is fixedly mounted on the front end of the fixing frame (3); a cloth bag body (8) is fixedly mounted on the bottom of the top ring (11); a bottom frame (6) is fixedly mounted on the bottom of the front of the mounting plate (1); an electric push rod (7) is fixedly mounted on the front end of the bottom frame (6); a mounting ring (4) is fixedly mounted on the top of the electric push rod (7); the mounting ring (4) is sleeved on the outside of the cloth bag body (8); a cleaning mechanism (5) is movably mounted on the bottom of the mounting ring (4); the cloth bag body (8) is arranged on the inner side of the cleaning mechanism (5); a buffer mechanism (9) is fixedly mounted on the front of the stretching mechanism (2); the top of the buffer mechanism (9) is fixedly connected to the bottom of the cloth bag body (8).

2. The dust removal bag with a stretch structure according to claim 1, characterized in that: The stretching mechanism (2) comprises a guide rail (21), the guide rail (21) is fixedly mounted on the middle part of the front face of the mounting plate (1), the guide rail (21) is rotatably connected to a screw rod (22) inside, a driving motor (23) is fixedly mounted on the bottom of the guide rail (21), the output end of the driving motor (23) is fixedly connected to the bottom of the screw rod (22), a slider (24) is threadedly connected to the outer surface of the screw rod (22), the slider (24) is slidably connected to the inner side of the guide rail (21), and the front face of the slider (24) is fixedly connected to the buffer mechanism (9).

3. The dust removal bag with a stretch structure according to claim 2, characterized in that: The buffer mechanism (9) comprises a bottom ring (91), the bottom ring (91) is fixedly mounted on the front side of the slider (24), buffer springs (92) are fixedly mounted at equal intervals on the top of the bottom ring (91), a fixing ring (93) is fixedly mounted on the top of the buffer spring (92), and the top of the fixing ring (93) is fixedly connected to the bottom of the cloth bag body (8).

4. The dust removal bag with a stretch structure according to claim 3, characterized in that: The bottom of the fixing ring (93) is fixedly mounted with supporting rods (94) at equal intervals, the bottom of the supporting rods (94) penetrates the bottom ring (91), and the buffer springs (92) are sleeved on the outer surface of the supporting rods (94).

5. The dust removal bag with a stretch structure according to claim 4, characterized in that: The cleaning mechanism (5) comprises a guide screw rod (51), a mounting frame (52) and a gear ring (53), wherein the guide screw rod (51) is fixedly mounted on both sides of the top of the base frame (6), the mounting frame (52) is fixedly mounted on the outer side of the mounting ring (4), the bottom of the mounting frame (52) is also fixedly connected to the top of an electric push rod (7), the gear ring (53) is rotatably connected to the bottom of the mounting ring (4), a cleaning brush plate (54) is fixedly mounted at equal intervals on the bottom of the gear ring (53), the inner side of the cleaning brush plate (54) is fitted and connected to the outer surface of the bag body (8), both ends of the mounting frame (52) are rotatably connected to a transmission gear (55), the transmission gear (55) and the gear ring (53) are meshed and connected, a reserved groove (56) is provided in the middle of the transmission gear (55), and the guide screw rod (51) is movably connected to the inside of the reserved groove (56).

6. The dust removal bag with a stretch structure according to claim 5, characterized in that: The four corners of the mounting plate (1) are each provided with mounting holes (10), and the mounting holes (10) are configured as countersunk holes.

7. The dust removal bag with a stretch structure according to claim 6, characterized in that: The overall cross-sectional shapes of the inner sides of the slider (24) and the guide rail (21) are all arranged in a convex shape, and the overall external corners of the mounting plate (1), the guide rail (21), the base frame (6) and the mounting frame (52) are all arranged in an arc shape.

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