Flour bag fixing device for flour production
Through the design of the flour bag fixing device, the cooperation of the bag fixing parts and the telescopic parts and movable bags is solved, and the filling efficiency of multiple bags of flour is improved. , and adapt to different sizes of flour bags, achieving stable fixation and storage of flour bags.
Patent Information
- Application Number
- CN202420833993.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-22
AI Technical Summary
During the flour production process, in order to prevent the opening of the flour bag from changing, it is necessary to manually support the flour bag to prevent the flour from spilling during filling. However, when multiple bags of flour need to be filled, the manual demand is too high, resulting in inefficiency.
A flour bag fixing device is designed, including mounting parts, storage parts, rotary grooves, support bag fixing parts, telescopic grooves, side plate parts and movable support bag parts. The flour can be facilitated by matching the support bag fixing parts and the retracting parts. The bag is stretched and fixed, adapted to flour bags of different sizes, and the flour bags are stable fixed and stored by the matching of the movable bags and the torsional part.
The device can save manual use, improve the filling efficiency of multiple bags of flour, adapt to flour bags of different sizes, and avoid damage to the bag fixtures when not in use through the design of flexible auxiliary parts and elastic parts.
Smart Images
Figure CN222157970U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of flour production, in particular to a flour bag fixing device for flour production. Background Art
[0002] Flour, derived from the fine processing of wheat, is a fine powdery substance. According to the difference in its protein content, flour is finely divided into high-gluten, medium-gluten, low-gluten and gluten-free types.
[0003] In the flour production process, wheat grains are first cleaned to remove impurities and adjust their moisture content. Next, the endosperm of the wheat is accurately separated from the germ and bran to ensure that the endosperm is pure. The endosperm is then finely ground until it becomes a fine powder. Finally, the flour is graded and bagged according to different market needs, thus producing various flour products that meet consumer needs.
[0004] The existing flour bagging process adopts the method of manually putting the flour bag to the bottom of the filling head for filling. In order to prevent the opening of the flour bag from changing during the filling process, the flour bag needs to be manually propped up and fixed to avoid flour spilling during filling. However, if multiple bags of flour need to be filled at the same time, the manual labor demand is too large, so further improvement and optimization is needed. Utility Model Content
[0005] The utility model aims to provide a flour bag fixing device for flour production, so as to solve the problem proposed in the above background technology that in order to prevent the opening of the flour bag from changing during the filling process, the flour bag needs to be manually propped up and fixed to avoid spilling of flour during filling. However, if multiple bags of flour need to be filled at the same time, the manual labor required is too large.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a flour bag fixing device for flour production, comprising a mounting member, wherein the mounting member is mounted at the bottom of a filling head:
[0007] A storage part, the storage part is located outside the mounting part, a rotating groove is arranged inside the storage part, a bag-supporting positioning groove is arranged inside the rotating groove, a bag-supporting fixing part is arranged inside the rotating groove, a positioning part is arranged outside the bag-supporting fixing part, a positioning shaft is arranged inside the bag-supporting fixing part, a kit is arranged outside the positioning shaft, and the bag-supporting fixing part is used to support and fix the flour bag;
[0008] A telescopic slot, the telescopic slot is located inside the bag support fixing member, a telescopic member is arranged inside the telescopic slot, a rotating member is arranged outside the telescopic member, and the telescopic member is used to extend the bag support fixing member;
[0009] The side panel is located outside the telescopic member, a movable bag-supporting member is arranged outside the side panel, a shaft is arranged inside the movable bag-supporting member, a torque member is arranged outside the shaft, and the movable bag-supporting member is used for adjusting the size when supporting the bag.
[0010] Preferably, a plurality of groups of storage parts are equidistantly installed in a circular shape on the outside of the filling head, the storage parts are all configured as block-shaped parts, a rotating groove is provided inside the storage parts, the upper end and the outer side of the rotating groove penetrate the storage parts, the inner side walls of the rotating groove are symmetrically provided with bag-supporting positioning grooves, the inner upper side walls of the rotating groove are symmetrically provided with storage positioning grooves, the bag-supporting positioning grooves and the storage positioning grooves are distributed at ninety degrees, the bag-supporting positioning grooves and the storage positioning grooves are both configured as transverse inner grooves, and trumpet mouths are provided on the outer sides of the bag-supporting positioning grooves and the storage positioning grooves.
[0011] Preferably, bag-supporting fixing parts are movably provided in the rotating groove, and the bag-supporting fixing parts are configured as transverse rod-shaped parts. The outer sides of the bag-supporting fixing parts pass through the rotating groove and extend to the outside. Positioning parts are provided on the outer sides of the bag-supporting fixing parts located on the rotating groove parts corresponding to the bag-supporting positioning grooves, and the outer sides of the positioning parts are located in the bag-supporting positioning grooves.
[0012] Preferably, the bag-supporting fixing parts are provided with movable grooves in the rotating groove part, and the movable grooves are configured as transverse grooves penetrating the bag-supporting fixing parts on both sides, and positioning shafts are movably provided inside the movable grooves, and both sides of the positioning shafts penetrate the bag-supporting fixing parts and are fixed to the storage parts, and kits are sleeved on the outer sides of the positioning shafts, and the kits are movably located in the movable grooves, and one side of the kits close to the mounting part is fixedly connected to the elastic part.
[0013] Preferably, the bag-supporting fixing members are provided with telescopic grooves inside, the telescopic grooves are configured as transverse columnar grooves, telescopic members are movably provided inside the telescopic grooves, the telescopic members are configured as transverse rod-shaped members, and the outer sides of the telescopic members penetrate the telescopic grooves and extend to the outside.
[0014] Preferably, a stopper is fixedly connected to one side of the telescopic member, and limit slides are provided on the upper and lower sides of the stopper, the limit slides are configured as rectangular protrusions, and transverse slides are provided on the upper and lower sides of the telescopic groove corresponding to the limit slides, and the limit slides are located in the transverse slides.
[0015] Preferably, a rotating part is movably provided at the outer end of the bag-stretching fixing part, the rotating part is arranged as a T-shaped kit, one side of the rotating part is movably embedded in the bag-stretching fixing part, the inner diameter of the rotating part is adapted to the telescopic part, the inner wall of the rotating part is provided with an internal thread, the outer side of the telescopic part passes through the rotating part, the outer side of the telescopic part is provided with an external thread corresponding to the rotating part, and the telescopic part is threadedly connected to the rotating part.
[0016] Preferably, the outer ends of the telescopic parts are fixedly connected to the side panels, the side panels are arranged as vertical plate-shaped parts, the outer upper ends of the side panels are stacked with two groups of side ears, the outer sides of the side panels are movably provided with movable bag-supporting parts, the movable bag-supporting parts are arranged in an inclined shape, the upper ends of the movable bag-supporting parts are provided with shaft parts corresponding to the side ears, the movable bag-supporting parts are movably sleeved on the outer sides of the shaft parts, the outer sides of the shaft parts are fixedly connected to one end of the torque parts, the other ends of the torque parts are fixedly connected to the movable bag-supporting parts, the outer bottoms of the movable bag-supporting parts are installed with flexible auxiliary parts, and the flexible auxiliary parts are arranged to be made of rubber material.
[0017] Compared with the prior art, the beneficial effects of the utility model are:
[0018] The utility model provides a flour bag fixing device for flour production, wherein the bag-stretching fixing part cooperates with the telescopic part, so that the flour bag can be stretched open to achieve the effect of fixing the flour bag, thereby saving labor, so that multiple bags of flour can be filled at the same time, and the telescopic part cooperates with the bag-stretching fixing part to fix flour bags of different sizes.
[0019] By means of the movable bag support member and the torque member, the flour bag opening can be conveniently put on the outside of the bag support fixing member. Meanwhile, the movable bag support member and the flexible auxiliary member can further support the flour bag after the flour bag is put on.
[0020] The bag support fixing member can be stored by cooperating with the positioning member through the storage positioning groove, so as to avoid the bag support fixing member being damaged when not in use. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The utility model is further described below in conjunction with the accompanying drawings:
[0022] Figure 1 It is a schematic diagram of the structure of the utility model;
[0023] Figure 2 This is an exploded schematic diagram of the mounting structure of the utility model;
[0024] Figure 3 This is a schematic cross-sectional view of the structure of the bag support fixing member of the utility model;
[0025] Figure 4 It is a schematic diagram of the separation of the movable bag supporting member and the side panel of the utility model.
[0026] In the figure: filling head 1, mounting part 2, storage part 3, rotating groove 4, bag supporting positioning groove 5, storage positioning groove 6, bag supporting fixing part 7, positioning part 8, movable groove 9, positioning shaft 10, kit 11, elastic part 12, telescopic groove 13, telescopic part 14, stopper 15, limiting slide 16, rotating part 17, side plate part 18, side ear 19, movable bag supporting part 20, shaft part 21, torque part 22, flexible auxiliary part 23. DETAILED DESCRIPTION
[0027] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.
[0028] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.
[0029] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0030] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.
[0031] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.
[0032] Embodiment 1
[0033] See also Figures 1 to 4The utility model provides a technical solution: a flour bag fixing device for flour production, comprising a mounting member 2, wherein the mounting member 2 is mounted at the bottom of a filling head 1:
[0034] A storage member 3 is provided, the storage member 3 is located outside the mounting member 2, a rotating groove 4 is provided inside the storage member 3, a bag-supporting positioning groove 5 is provided inside the rotating groove 4, a bag-supporting fixing member 7 is provided inside the rotating groove 4, a positioning member 8 is provided outside the bag-supporting fixing member 7, a positioning shaft 10 is provided inside the bag-supporting fixing member 7, a set 11 is provided outside the positioning shaft 10, and the bag-supporting fixing member 7 is used to support and fix the flour bag;
[0035] A telescopic slot 13, the telescopic slot 13 is located inside the bag support fixing member 7, a telescopic member 14 is arranged inside the telescopic slot 13, a rotating member 17 is arranged outside the telescopic member 14, and the telescopic member 14 is used to extend the bag support fixing member 7;
[0036] The side panel 18 is located outside the telescopic member 14. A movable bag-supporting member 20 is arranged outside the side panel 18. A shaft 21 is arranged inside the movable bag-supporting member 20. A torque member 22 is arranged outside the shaft 21. The movable bag-supporting member 20 is used to adjust the size when supporting the bag.
[0037] Embodiment 2
[0038] On the basis of the first embodiment, a plurality of groups of storage parts 3 are equidistantly installed in a circular shape on the outside of the filling head 1, and the storage parts 3 are all configured as block parts, and a rotating groove 4 is arranged inside the storage part 3, and the upper end and the outer side of the rotating groove 4 penetrate the storage part 3, and the inner side walls of the rotating groove 4 are symmetrically provided with bag support positioning grooves 5, and the inner upper side walls of the rotating groove 4 are symmetrically provided with storage positioning grooves 6, and the bag support positioning grooves 5 and the storage positioning grooves 6 are distributed at ninety degrees, and the bag support positioning grooves 5 and the storage positioning grooves 6 are both configured as transverse inner grooves, and the outer sides of the bag support positioning grooves 5 and the storage positioning grooves 6 are both configured with trumpets, and bag support fixing parts 7 are movably arranged in the rotating groove 4, and the bag support fixing parts 7 are all configured as transverse rod-shaped parts , the outer sides of the bag-stretching fixing parts 7 all penetrate the rotating groove 4 and extend to the outside, the outer sides of the bag-stretching fixing parts 7 located at the rotating groove 4 are all provided with positioning parts 8 corresponding to the bag-stretching positioning grooves 5, the outer sides of the positioning parts 8 are all located in the bag-stretching positioning grooves 5, and the parts of the bag-stretching fixing parts 7 located at the rotating groove 4 are all provided with movable grooves 9, and the movable grooves 9 are set as transverse grooves that penetrate the bag-stretching fixing parts 7 on both sides, and the inside of the movable grooves 9 are all movably provided with positioning shafts 10, and both sides of the positioning shafts 10 penetrate the bag-stretching fixing parts 7 and are fixed to the storage parts 3, and the outer sides of the positioning shafts 10 are all sleeved with sets 11, and the sets 11 are all movably located in the movable grooves 9, and the side of the sets 11 close to the mounting parts 2 is fixedly connected to the elastic parts 12;
[0039] The bag-stretching fixing member 7 is provided, so that the flour bag can be stretched and fixed conveniently. Meanwhile, the positioning member 8 cooperates with the design of the bag-stretching positioning groove 5 and the movable groove 9, so that the bag-stretching fixing member 7 can be fixed to prevent the bag-stretching fixing member 7 from moving. The storage positioning groove 6 is provided, so that the bag-stretching fixing member 7 can be stored vertically conveniently. The movable groove 9 is provided, so that the bag-stretching fixing member 7 can be moved horizontally for unfolding and storage.
[0040] Embodiment 3
[0041] On the basis of the second embodiment, the bag support fixing member 7 is provided with a telescopic groove 13 inside, and the telescopic groove 13 is configured as a transverse columnar groove. A telescopic member 14 is movably provided in the telescopic groove 13, and the telescopic member 14 is configured as a transverse rod-shaped member. The outer side of the telescopic member 14 passes through the telescopic groove 13 and extends to the outside. A stopper 15 is fixedly connected to one side of the telescopic member 14. The upper and lower sides of the stopper 15 are provided with a limit slide 16. The limit slide 16 is configured as a rectangular convex block. The upper and lower sides of the telescopic groove 13 correspond to the limit slide The part 16 is provided with a transverse slide groove, and the limiting slides 16 are all located in the transverse slide groove. The outer end of the bag support fixing part 7 is movably provided with a rotating part 17, and the rotating part 17 is provided as a T-shaped kit. One side of the rotating part 17 is movably embedded in the bag support fixing part 7. The inner diameter of the rotating part 17 is adapted to the telescopic part 14. The inner wall of the rotating part 17 is provided with an internal thread. The outer side of the telescopic part 14 passes through the rotating part 17. The outer side of the telescopic part 14 is provided with an external thread corresponding to the rotating part 17. The telescopic part 14 is screwed with the rotating part 17.
[0042] By means of the telescopic member 14, the length of the bag-supporting fixing member 7 can be adjusted so as to fill flour bags of different sizes. Meanwhile, by means of the rotating member 17, the telescopic member 14 can be driven to move. By means of the limiting slide 16 provided in cooperation with the transverse slide groove, the telescopic member 14 can be prevented from rotating when moving.
[0043] Embodiment 4
[0044] On the basis of the third embodiment, the outer ends of the telescopic members 14 are fixedly connected to the side panels 18, and the side panels 18 are configured as vertical plate-shaped members. The upper ends of the outer sides of the side panels 18 are stacked with two groups of side ears 19, and the outer sides of the side panels 18 are movably provided with movable bag-supporting members 20, and the movable bag-supporting members 20 are configured in an inclined shape. The upper ends of the movable bag-supporting members 20 are provided with shaft members 21 corresponding to the side ears 19, and the movable bag-supporting members 20 are movably sleeved on the outer sides of the shaft members 21. The outer sides of the shaft members 21 are fixedly connected to one end of the torsion member 22, and the other ends of the torsion member 22 are fixedly connected to the movable bag-supporting members 20. The outer bottoms of the movable bag-supporting members 20 are installed with flexible auxiliary members 23, and the flexible auxiliary members 23 are configured to be made of rubber.
[0045] By movably sleeved the shaft member 21 on the movable bag supporting member 20, the angle of the flour bag can be changed when it is sleeved to the outside of the bag supporting fixing member 7, so as to better sleeve the flour bag. The torque member 22 can be arranged to easily drive the movable bag supporting member 20 to rotate, so as to reset the movable bag supporting member 20.
[0046] When fixing the flour bag, the utility model first rotates the rotating member 17, and the friction between the internal thread of the rotating member 17 and the external thread of the telescopic member 14 causes the telescopic member 14 to move, thereby making the length of the bag-stretching fixing member 7 and the telescopic member 14 match the size of the flour bag, and then the flour bag is put on the outside of the bag-stretching fixing member 7, and the flour bag is stretched and fixed by the bag-stretching fixing member 7 cooperating with the telescopic member 14;
[0047] When not in use, the bag-supporting fixing member 7 can be pulled outward so that the positioning member 8 leaves the bag-supporting positioning groove 5, and then the bag-supporting fixing member 7 can be rotated ninety degrees around the positioning axis 10 so that the positioning member 8 is aligned with the storage positioning groove 6, and the bag-supporting fixing member 7 is loosened. The elastic member 12 pushes the bag-supporting fixing member 7 downward by its own elastic force, so that the positioning member 8 is inserted into the storage positioning groove 6, and the bag-supporting fixing member 7 is fixed, thereby completing the storage of the bag-supporting fixing member 7.
[0048] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.
[0049] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.
Claims
1. A flour bag fixing device for flour production, comprising a mounting member (2), wherein the mounting member (2) is mounted at the bottom of a filling head (1), and characterized in that: A storage member (3), the storage member (3) is located outside the mounting member (2), a rotating groove (4) is provided inside the storage member (3), a bag-supporting positioning groove (5) is provided inside the rotating groove (4), a bag-supporting fixing member (7) is provided inside the rotating groove (4), a positioning member (8) is provided outside the bag-supporting fixing member (7), a positioning shaft (10) is provided inside the bag-supporting fixing member (7), a sleeve (11) is provided outside the positioning shaft (10), and the bag-supporting fixing member (7) is used to support and fix the flour bag; A telescopic groove (13), the telescopic groove (13) is located inside the bag-supporting fixing member (7), a telescopic member (14) is arranged inside the telescopic groove (13), a rotating member (17) is arranged outside the telescopic member (14), and the telescopic member (14) is used to extend the bag-supporting fixing member (7); A side plate (18) is provided, the side plate (18) is located outside the telescopic member (14), a movable bag-supporting member (20) is provided outside the side plate (18), a shaft member (21) is provided inside the movable bag-supporting member (20), a torque member (22) is provided outside the shaft member (21), and the movable bag-supporting member (20) is used to adjust the size when supporting the bag.
2. A flour bag fixing device for flour production according to claim 1, characterized in that: The outer side of the filling head (1) is provided with a plurality of groups of storage parts (3) equidistantly arranged in a ring shape, the storage parts (3) are all arranged as block parts, the storage parts (3) are all arranged with a rotating groove (4) inside, the upper end and the outer side of the rotating groove (4) penetrate the storage part (3), the inner side wall of the rotating groove (4) is symmetrically provided with bag-supporting positioning grooves (5), the inner upper side wall of the rotating groove (4) is symmetrically provided with a storage positioning groove (6), the bag-supporting positioning groove (5) and the storage positioning groove (6) are both distributed at ninety degrees, the bag-supporting positioning groove (5) and the storage positioning groove (6) are both arranged as transverse inner grooves, and the outer sides of the bag-supporting positioning groove (5) and the storage positioning groove (6) are both provided with a bell mouth.
3. A flour bag fixing device for flour production according to claim 2, characterized in that: The rotating groove (4) is provided with a bag-supporting fixing member (7) movably disposed therein, the bag-supporting fixing member (7) is provided as a transverse rod-shaped member, the outer side of the bag-supporting fixing member (7) passes through the rotating groove (4) and extends to the outside, the outer side of the bag-supporting fixing member (7) located at the rotating groove (4) is provided with a positioning member (8) corresponding to the bag-supporting positioning groove (5), and the outer side of the positioning member (8) is located in the bag-supporting positioning groove (5).
4. A flour bag fixing device for flour production according to claim 3, characterized in that: The bag-supporting fixing member (7) is provided with a movable groove (9) in the part located in the rotating groove (4), and the movable groove (9) is provided as a transverse groove penetrating the bag-supporting fixing member (7) on both sides, and a positioning shaft (10) is movably provided inside the movable groove (9), and both sides of the positioning shaft (10) penetrate the bag-supporting fixing member (7) and are fixed to the storage member (3), and a sleeve (11) is sleeved on the outer side of the positioning shaft (10), and the sleeve (11) is movably located in the movable groove (9), and a side of the sleeve (11) close to the mounting member (2) is fixedly connected to an elastic member (12).
5. A flour bag fixing device for flour production according to claim 4, characterized in that: The bag support fixing member (7) is provided with a telescopic groove (13) inside, the telescopic groove (13) is configured as a transverse columnar groove, a telescopic member (14) is movably provided inside the telescopic groove (13), the telescopic member (14) is configured as a transverse rod-shaped member, and the outer side of the telescopic member (14) penetrates the telescopic groove (13) and extends to the outside.
6. A flour bag fixing device for flour production according to claim 5, characterized in that: A stopper (15) is fixedly connected to one side of the telescopic member (14), and limit slides (16) are arranged on both upper and lower sides of the stopper (15), and the limit slides (16) are arranged as rectangular protrusions. Transverse slides are arranged on both upper and lower sides of the telescopic slot (13) corresponding to the limit slides (16), and the limit slides (16) are located in the transverse slides.
7. A flour bag fixing device for flour production according to claim 6, characterized in that: The outer end of the bag-supporting fixing member (7) is movably provided with a rotating member (17), the rotating member (17) is provided as a T-shaped set, one side of the rotating member (17) is movably embedded in the bag-supporting fixing member (7), the inner diameter of the rotating member (17) is adapted to the telescopic member (14), the inner wall of the rotating member (17) is provided with an internal thread, the outer side of the telescopic member (14) passes through the rotating member (17), the outer side of the telescopic member (14) is provided with an external thread corresponding to the rotating member (17), and the telescopic member (14) is threadedly connected to the rotating member (17).
8. A flour bag fixing device for flour production according to claim 7, characterized in that: The outer ends of the telescopic parts (14) are fixedly connected to the side panels (18), the side panels (18) are arranged as vertical plate-shaped parts, the outer upper ends of the side panels (18) are stacked with two groups of side ears (19), the outer sides of the side panels (18) are movably provided with movable bag-supporting parts (20), the movable bag-supporting parts (20) are arranged in an inclined shape, the upper ends of the movable bag-supporting parts (20) are provided with shaft parts (21) corresponding to the side ears (19), the movable bag-supporting parts (20) are movably sleeved on the outer sides of the shaft parts (21), the outer sides of the shaft parts (21) are fixedly connected to one end of the torque parts (22), the other ends of the torque parts (22) are fixedly connected to the movable bag-supporting parts (20), the outer bottoms of the movable bag-supporting parts (20) are installed with flexible auxiliary parts (23), and the flexible auxiliary parts (23) are arranged with rubber material.