Filter bag capable of locking bag opening

Abstract

The utility model belongs to the technical field of filter bags, and particularly relates to a filter bag capable of locking a bag opening, which comprises a filter bag main body, a PVC (polyvinyl chloride) bridle is in hot-melt compression joint with the outer wall of a port of the filter bag main body, a plurality of strip-shaped holes are formed in the surface of the end of the PVC bridle at equal intervals, a sleeve is in hot-melt compression joint with the outer wall of the PVC bridle, a support is integrally formed on the outer wall of the sleeve, and a plurality of strip-shaped holes are formed in the outer wall of the support. A connecting plate is installed on the inner side of the support, the end of the connecting plate abuts against the inner wall of the support, a connecting plug is arranged on the surface, close to the binding sleeve, of the connecting plate and extends to the inner side of the binding sleeve, and first inclined faces are symmetrically arranged at the end, away from the connecting plate, of the connecting plug. After the PVC bridle tightens the port of the filter bag main body, the connecting plugs are connected with the corresponding strip-shaped holes in an inserted manner, and meanwhile, the screws are rotated to enable the ends of the screws to be in threaded connection with the screw holes so as to position the connecting plates, so that the connecting plugs are prevented from being separated from the strip-shaped holes, and the tightening effect on the filter bag main body is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of filter bags, in particular to a filter bag with a lockable bag opening. Background Art

[0002] The filter bag is a key part in the operation of the bag filter. Usually, the cylindrical filter bag is hung vertically in the dust collector. The fabric and design of the filter bag should strive for high-efficiency filtration, easy dust removal and durability. After the filter bag is assembled and fixed, in order to improve the use effect of the filter bag, the technician will insert the support frame inside it. The open end of the filter bag does not have a locking component. When in use, it is not convenient to lock and fix the bag mouth position, affecting the use effect. The existing patent is a filter bag with a lockable bag mouth. The patent number is 202221484132.2. When the open end of the assembly cylinder needs to be locked and adjusted, the user turns the adjustment hand wheel relative to the back plate to retract and release the traction rope, thereby adjusting the open end of the assembly cylinder, which is more convenient to use.

[0003] Patent No. 202221484132.2 uses a telescopic positioning pin to position the adjusting handwheel. When the torque at the adjusting handwheel is too large, it is easy to cause the telescopic positioning pin to separate from the positioning hole set on the positioning disk, thereby affecting the tightening effect of the filter bag. In order to solve the above problem, a filter bag with a lockable bag mouth is proposed in this application. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] In order to solve the technical problems existing in the background technology, the utility model proposes a filter bag with a lockable bag mouth. After the PVC strap is tightened on the port of the filter bag body, the plug connector is plugged and connected with the corresponding strip hole. At the same time, the screw is turned to screw its end with the screw hole to position the connecting plate, preventing the plug connector from detaching from the strip hole, thereby ensuring the tightening effect on the filter bag body.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the utility model provides a filter bag with a lockable bag opening, comprising a filter bag body;

[0008] A PVC band is hot-melt-pressed on the outer wall of the port of the filter bag body, and a plurality of strip-shaped holes are equidistantly opened on the surface of the end of the PVC band;

[0009] The outer wall of the PVC strap is hot-melt-crimped with a sleeve, the outer wall of the sleeve is integrally formed with a bracket, a connecting plate is installed on the inner side of the bracket, and the end of the connecting plate abuts against the inner wall of the bracket, a plug connector is provided on the surface of the connecting plate close to the sleeve, and the plug connector extends to the inner side of the sleeve, and a first inclined surface is symmetrically provided on one end of the plug connector away from the connecting plate;

[0010] A spring is provided between the connecting plate and the inner top wall of the bracket;

[0011] A screw is inserted at the top edge of the bracket, and the bottom end of the screw extends to the inner side of the bracket;

[0012] The surface of the connecting plate corresponding to the screw is provided with a screw hole, and the screw hole is screwed to the bottom end of the screw.

[0013] Preferably, a guide head is provided at the end of the PVC strap, and a second guide slope is symmetrically provided at one end of the guide head away from the PVC strap, and the guide head and the PVC strap are an integrally formed structure.

[0014] Preferably, the outer dimensions of the plug connector are matched with the inner dimensions of the strip-shaped hole, the plug connector and the connecting plate are an integrally formed structure, and both the plug connector and the connecting plate are made of PVC material.

[0015] Preferably, the two ends of the spring are respectively connected to the bracket and the connecting plate by hot-melt crimping.

[0016] Preferably, a guide hole is provided at the junction of the plug connector and the sleeve, and the outer wall of the plug connector is in contact with the inner wall of the guide hole.

[0017] Preferably, a countersunk head is provided at the junction of the screw end and the top end of the bracket, and the inner diameter of the countersunk head is larger than the outer diameter of the screw end.

[0018] The above technical solution of the utility model has the following beneficial technical effects:

[0019] 1. The utility model, by wrapping the PVC strap around the port of the filter bag body and then passing the end of the strap through the inner side of the strap sleeve, and then pulling the PVC strap, the first inclined surface arranged at the bottom end of the plug connector abuts against the corner of the top of the strip hole, thereby pulling the PVC strap to move, and at the same time making the connecting plate cooperate with the spring to move the plug connector, after the PVC strap tightens the port of the filter bag body, the plug connector is plugged and connected with the corresponding strip hole, and at the same time, the screw is turned to make the end of the plug connector screwed with the screw hole to position the connecting plate, prevent the plug connector from being separated from the strip hole, and ensure the tightening effect on the filter bag body.

[0020] 2. The utility model facilitates the insertion of the PVC drawstring by plugging one end of the guide head provided with the second guide slope into the bundle sleeve and making the end of the guide head abut against the first slope provided on the plug connector to open the plug connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the sleeve structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the support structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the plug connector structure of the utility model.

[0025] Reference numerals:

[0026] 1. Filter bag body; 2. PVC strap; 3. Strip hole; 4. Guide head; 5. Sleeve; 6. Bracket; 7. Connecting plate; 8. Spring; 9. Plug connector; 10. Screw hole; 11. Screw. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0028] like Figure 1-4 As shown, the utility model provides a filter bag with a lockable bag opening, comprising a filter bag body 1;

[0029] A PVC band 2 is hot-melt-pressed on the outer wall of the port of the filter bag body 1, and a plurality of strip holes 3 are equidistantly opened on the surface of the end of the PVC band 2;

[0030] The outer wall of the PVC strap 2 is hot-melt-pressed with a sleeve 5, and a bracket 6 is integrally formed on the outer wall of the sleeve 5. A connecting plate 7 is installed on the inner side of the bracket 6, and the end of the connecting plate 7 abuts against the inner wall of the bracket 6. A plug connector 9 is provided on the surface of the connecting plate 7 close to the sleeve 5, and the plug connector 9 extends to the inner side of the sleeve 5, and a first inclined surface is symmetrically provided on the end of the plug connector 9 away from the connecting plate 7;

[0031] A spring 8 is provided between the connecting plate 7 and the inner top wall of the bracket 6;

[0032] A screw 11 is inserted at the top edge of the bracket 6, and the bottom end of the screw 11 extends to the inner side of the bracket 6;

[0033] A screw hole 10 is provided on the surface of the connecting plate 7 corresponding to the screw 11, and the screw hole 10 is screwed to the bottom end of the screw 11;

[0034] It should be noted that the width of the PVC strap 2 matches the inner width of the strap sleeve 5;

[0035] By wrapping the PVC tie band 2 around the port of the filter bag body 1 and then passing its end through the inner side of the tie sleeve 5, the PVC tie band 2 is pulled, and the first inclined surface set at the bottom end of the plug connector 9 abuts against the corner of the top of the strip hole 3, thereby pulling the PVC tie band 2 to move, and at the same time, the connecting plate 7 cooperates with the spring 8 to move the plug connector 9. After the PVC tie band 2 is tightened on the port of the filter bag body 1, the plug connector 9 is plugged and connected with the corresponding strip hole 3. At the same time, the screw 11 is turned to make its end screwed with the screw hole 10 to position the connecting plate 7, prevent the plug connector 9 from being separated from the strip hole 3, and ensure the tightening effect on the filter bag body 1.

[0036] like Figure 1 , Figure 4 As shown, a guide head 4 is provided at the end of the PVC strap 2, and a second guide slope is symmetrically provided at one end of the guide head 4 away from the PVC strap 2, and the guide head 4 and the PVC strap 2 are an integrally formed structure;

[0037] It should be noted that by plugging one end of the guide head 4 provided with the second guide bevel into the sleeve 5 and making the end of the guide head 4 abut against the first bevel provided on the plug connector 9, the plug connector 9 is opened, thereby facilitating the insertion of the PVC strap 2.

[0038] like Figure 2-4 As shown, the outer dimensions of the plug connector 9 are adapted to the inner dimensions of the strip hole 3, the plug connector 9 and the connecting plate 7 are an integrally formed structure, and the plug connector 9 and the connecting plate 7 are both made of PVC, the two ends of the spring 8 are respectively connected to the bracket 6 and the connecting plate 7 by hot-melt crimping, a guide hole is provided at the junction of the plug connector 9 and the bundle sleeve 5, and the outer wall of the plug connector 9 is in contact with the inner wall of the guide hole;

[0039] It should be noted that, in the process of guiding the plug connector 9 through the guide hole, it is beneficial for the plug connector 9 to be accurately docked with the strip hole 3 provided at the PVC strap 2 .

[0040] like Figure 3 As shown, a countersunk head is provided at the junction of the end of the screw 11 and the top of the bracket 6, and the inner diameter of the countersunk head is larger than the outer diameter of the end of the screw 11;

[0041] It should be noted that, by setting the countersunk head, the end of the screw 11 is sunk into the countersunk head, thereby preventing the end of the screw 11 from scratching the hands of the staff during operation.

[0042] The working principle and use process of the utility model: the width of the PVC strap 2 is adapted to the inner width of the strap sleeve 5;

[0043] By wrapping the PVC tie band 2 around the port of the filter bag body 1 and then passing its end through the inner side of the tie sleeve 5, the PVC tie band 2 is pulled, and the first inclined surface set at the bottom end of the plug connector 9 abuts against the corner of the top of the strip hole 3, thereby pulling the PVC tie band 2 to move, and at the same time, the connecting plate 7 cooperates with the spring 8 to move the plug connector 9. After the PVC tie band 2 is tightened on the port of the filter bag body 1, the plug connector 9 is plugged and connected with the corresponding strip hole 3. At the same time, the screw 11 is turned to make its end screwed with the screw hole 10 to position the connecting plate 7, prevent the plug connector 9 from being separated from the strip hole 3, and ensure the tightening effect on the filter bag body 1.

[0044] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A filter bag with a lockable bag opening, characterized in that: It comprises a filter bag body (1); A PVC band (2) is hot-melt-crimped at the outer wall of the port of the filter bag body (1), and a plurality of strip-shaped holes (3) are equidistantly provided on the surface of the end of the PVC band (2); The outer wall of the PVC strap (2) is hot-melt-crimped with a sleeve (5), and a bracket (6) is integrally formed on the outer wall of the sleeve (5). A connecting plate (7) is installed on the inner side of the bracket (6), and the end of the connecting plate (7) is in contact with the inner wall of the bracket (6). A plug connector (9) is provided on the surface of the connecting plate (7) close to the sleeve (5), and the plug connector (9) extends to the inner side of the sleeve (5), and a first inclined surface is symmetrically provided on the end of the plug connector (9) away from the connecting plate (7); A spring (8) is provided between the connecting plate (7) and the inner top wall of the bracket (6); A screw (11) is inserted at the top edge of the bracket (6), and the bottom end of the screw (11) extends to the inner side of the bracket (6); A screw hole (10) is provided on the surface of the connection plate (7) corresponding to the screw (11), and the screw hole (10) is screwed to the bottom end of the screw (11).

2. A filter bag with a lockable bag opening according to claim 1, characterized in that: A guide head (4) is provided at the end of the PVC strap (2), and a second guide slope is symmetrically provided at one end of the guide head (4) away from the PVC strap (2); the guide head (4) and the PVC strap (2) are an integrally formed structure.

3. A filter bag with a lockable bag opening according to claim 1, characterized in that: The external dimensions of the plug connector (9) are compatible with the internal dimensions of the strip-shaped hole (3); the plug connector (9) and the connecting plate (7) are an integrally formed structure, and both the plug connector (9) and the connecting plate (7) are made of PVC material.

4. A filter bag with a lockable bag opening according to claim 1, characterized in that: The two ends of the spring (8) are respectively connected to the bracket (6) and the connecting plate (7) by hot-melt crimping.

5. The filter bag with a lockable bag opening according to claim 1, characterized in that: A guide hole is provided at the junction of the plug connector (9) and the sleeve (5), and the outer wall of the plug connector (9) fits the inner wall of the guide hole.

6. A filter bag with a lockable bag opening according to claim 1, characterized in that: A countersunk head is provided at the junction of the end of the screw (11) and the top of the bracket (6), and the inner diameter of the countersunk head is greater than the outer diameter of the end of the screw (11).

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