Anti-blocking air expansion shaft

Abstract

The utility model relates to the technical field of clamping equipment, and discloses an anti-clogging air swelling shaft which comprises a main body, the main body comprises an air inlet structure, a reset mechanism and a clamping assembly, an air inlet channel is arranged outside the air inlet structure, a filter sleeve is arranged in the air inlet channel, a movable lantern ring is arranged at the top of one side of the air inlet channel, and the movable lantern ring is connected with the reset mechanism. A sealing plate is mounted at the top of the movable lantern ring, and an air inlet is formed in the sealing plate; a reset body is arranged on the periphery of the exterior of the reset mechanism, and a reset key is arranged at the top of the reset body; a connecting plate is arranged at the bottom of the clamping assembly, two sets of movable clamps are arranged outside the connecting plate, a base plate is arranged in each movable clamp, and a retractable body is arranged at the top of each base plate. According to the utility model, the filter sleeve is arranged, so that dirt on the surface of a filtered workpiece of the air swelling shaft enters the interior, the air inlet channel is prevented from being blocked, and the rubber pad is arranged, so that friction and scratches generated in the retracting and releasing work of the clamping assembly are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping equipment, in particular to an air shaft that prevents blockage. Background Art

[0002] An air shaft is a special winding tool, also known as a pneumatic shaft, an expansion shaft, a pressure shaft, etc. The main working principle of the air shaft is to expand the surface of the shaft through high-pressure inflation to firmly fix the reel. After deflation, the surface quickly retracts to facilitate discharging. This kind of shaft is widely used in the winding and unwinding operations of related mechanical equipment such as printing, coating, compounding, slitting, lamination, and paper processing.

[0003] The application number is CN220664283U, which discloses an air shaft, including a shaft body. The shaft body is provided with a plurality of strip-shaped holes along the axial direction. A telescopic plate is arranged in the strip-shaped holes. The telescopic plate slides in the strip-shaped holes through an air inflation assembly in the shaft body. A receiving groove is arranged in the telescopic plate. Wedge-shaped support plates rotatably connected to the telescopic plate are symmetrically arranged in the receiving groove. The smaller ends of the two support plates rotate coaxially at the middle position of the telescopic plate to adjust the radial height of the larger ends of the support plates. The air shaft provided by this application can adjust the outer diameter of the air shaft according to the inclination angle of the support plate, greatly improving the applicable range of the air shaft.

[0004] In the prior art, components such as a telescopic plate, an air inflation assembly, and a wedge-shaped support plate are used to complete the effect of inflating to expand the surface of the shaft to fix the reel. During the long-term operation of the air shaft, dust and paper scraps on the surface of the reel are easily brought into the interior of the shaft body, causing blockage and resulting in damage to the air shaft components. Secondly, the air inflation assembly slides in the strip-shaped holes, and multiple winding and unwinding operations are likely to damage the interior of the parts of the air inflation assembly, affecting the service life of the equipment. Summary of the Utility Model

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model provides an air shaft that prevents blockage, including a main body. The main body includes an air intake structure, a reset mechanism, and a clamping assembly. An air intake channel is arranged outside the air intake structure. A filter sleeve is arranged inside the air intake channel. A movable collar is arranged at the top on one side of the air intake channel. A sealing plate is installed on the top of the movable collar. An air intake port is arranged inside the sealing plate. A reset body is arranged around the outside of the reset mechanism. A reset key is arranged on the top of the reset body. A connecting plate is arranged at the bottom of the clamping assembly. Two groups of movable clamps are arranged outside the connecting plate. A backing plate is arranged inside the movable clamp. A winding and unwinding body is arranged on the top of the backing plate.

[0007] A filtering part is provided. By installing a filtering sleeve inside the air intake passage, dirt on the surface of the workpiece can be filtered into the interior during the operation of the air shaft, preventing blockage of the air intake passage and thus ensuring the air intake working effect of the air shaft.

[0008] In addition, a rubber pad is provided. By installing a rubber pad inside the backing plate, the friction and scratches generated during the retracting and extending operation of the clamping assembly are reduced, the noise is decreased, and at the same time, the folding part of the retracting and extending body is protected, enhancing the protection effect at the bottom and thus extending the service life of the equipment.

[0009] Furthermore, the air intake passage is a cylinder with moving notches opened on the outside. There are four groups of the moving notches, which are strip-shaped and extend to both ends. Inside the air intake passage, there is a circular through-hole that extends to both ends of the air intake passage. The filtering sleeve is a cylinder with two groups of filtering holes inside. The filtering holes are circular and penetrate through both sides of the outside of the filtering sleeve. The movable collar is a circular ring and is adaptively connected to the top of the filtering sleeve. There are multiple groups of buttons on the outer periphery of the movable collar. The buttons are square bodies and are distributed in a circumferential array. The sealing plate is a circular ring plate with an inner diameter equal to that of the movable collar and is adaptively connected. The air inlet is a tube and is communicated with the inside of the air intake passage.

[0010] Furthermore, there are four groups of the reset bodies, all of which are arc-shaped plates and are equidistantly distributed in a circumferential array outside the air intake passage. The reset button is a rectangular button and extends outside the movable collar.

[0011] Furthermore, there are four groups of the connecting plates, which are strip-shaped plates and are equidistantly and circumferentially arrayed and closely attached to the outside of the air intake passage. There are two groups of the movable clamps, both of which are arc-shaped plates and are centrally symmetrically distributed, and there are circular fixing bolts on the outside. One side of the movable clamp is fixed to the mounting connecting plate, and the other side is located outside the backing plate. The backing plate is a strip-shaped plate and is as wide as the connecting plate. There are four groups of the retracting and extending bodies, all of which are arc-shaped plates.

[0012] Furthermore, a rubber pad is provided inside the backing plate. The rubber pad is a strip-shaped pad that is as large as the backing plate and is adaptively connected.

[0013] The utility model has the following beneficial effects:

[0014] (1) In the utility model: A filtering part is provided. By installing a filtering sleeve inside the air intake passage, dirt on the surface of the workpiece can be filtered into the interior during the operation of the air shaft, preventing blockage of the air intake passage and thus ensuring the air intake working effect of the air shaft.

[0015] (2)The present utility model: A rubber pad is provided. By installing the rubber pad inside the backing plate, the friction and scratches generated during the retracting and extending operations of the clamping assembly are reduced, noise is decreased, and at the same time, the folding part of the retracting and extending body is protected, enhancing the protective effect at the bottom, thereby prolonging the service life of the device.

[0016] Of course, it is not necessary for any product implementing the present utility model to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the whole of the present utility model;

[0019] Figure 2 It is a top view schematic diagram of the present utility model;

[0020] Figure 3 It is a schematic diagram of the filter sleeve of the present utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the reset mechanism of the present utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the clamping assembly of the present utility model;

[0023] In the drawings, the list of components represented by each reference numeral is as follows:

[0024] In the figure: 1, intake structure; 2, reset mechanism; 3, clamping assembly; 101, intake passage; 102, filter sleeve; 103, movable collar; 104, sealing plate; 105, air inlet; 201, reset body; 202, reset key; 301, connecting plate; 302, movable clamp; 303, backing plate; 304, retracting and extending body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some, rather than all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1 - 5As shown in the figure, the utility model relates to an anti-blocking air shaft, which comprises a main body. The main body includes an air inlet structure 1, a reset mechanism 2 and a clamping assembly 3. An air inlet channel 101 is arranged outside the air inlet structure 1. A filter sleeve 102 is arranged inside the air inlet channel 101. A movable collar 103 is arranged at the top on one side of the air inlet channel 101. A sealing plate 104 is installed at the top of the movable collar 103. An air inlet 105 is arranged inside the sealing plate 104. Around the outside of the reset mechanism 2, there is a reset body 201. A reset key 202 is arranged at the top of the reset body 201. At the bottom of the clamping assembly 3, there is a connecting plate 301. Two groups of movable clamps 302 are arranged outside the connecting plate 301. A backing plate 303 is arranged inside the movable clamp 302. A winding and unwinding body 304 is arranged at the top of the backing plate 303.

[0027] A filtering part is provided. By installing a filter sleeve 102 inside the air inlet channel 101, dirt on the surface of the workpiece can be filtered from entering the inside during the working process of the air shaft, avoiding blockage of the air inlet channel 101, and thus ensuring the air inlet working effect of the air shaft.

[0028] In addition, a rubber pad is provided. By installing a rubber pad inside the backing plate 303, the friction and scratches generated during the winding and unwinding work of the clamping assembly 3 are reduced, the noise is reduced, and at the same time, the folding part of the winding and unwinding body 304 is protected, strengthening the protection effect at the bottom, and thus prolonging the service life of the equipment.

[0029] The air inlet channel 101 is a cylinder with moving notches opened on the outside. There are four groups of moving notches, which are strip-shaped and extend to both ends. Inside the air inlet channel 101, there is a circular through-hole, and the through-hole extends to both ends of the air inlet channel 101. The filter sleeve 102 is a cylinder with two groups of filter holes inside. The filter holes are circular and penetrate through both sides of the outside of the filter sleeve 102. The movable collar 103 is circular and is adaptively connected to the top of the filter sleeve 102. There are multiple groups of keys arranged around the outside of the movable collar 103. The keys are square and are distributed in a circumferential array. The sealing plate 104 is a circular ring plate with an inner diameter equal to that of the movable collar 103 and is adaptively connected. The air inlet 105 is tubular and communicates with the inside of the air inlet channel 101.

[0030] There are four groups of reset bodies 201, all of which are arc-shaped plates and are equally spaced in a circumferential array outside the air inlet channel 101. The reset key 202 is a rectangular key and extends outside the movable collar 103.

[0031] There are four groups of connecting plates 301, which are strip-shaped plates and are equally spaced in a circumferential array and are closely attached to the outside of the air inlet channel 101. There are two groups of movable clamps 302, both of which are arc-shaped plates and are centrosymmetrically distributed, and there are circular fixing bolts on the outside. One side of the movable clamp 302 is fixed to the mounting connecting plate 301, and the other side is located outside the backing plate 303. The backing plate 303 is a strip-shaped plate and has the same width as the connecting plate 301. There are four groups of winding and unwinding bodies 304, all of which are arc-shaped plates.

[0032] The inside of the backing plate 303 is provided with a rubber pad, and the rubber pad is a strip-shaped pad that is the same size as the backing plate 303 and is adaptively connected.

[0033] Working principle: During use, the workpiece to be processed is sleeved outside the air-expanding shaft. By installing an air-inflating device inside the air inlet 105 in the air intake structure 1 and performing the inflation work, the air intake passage 101 is filled with gas and expands, driving the movable clamp 302 in the clamping assembly 3 to control the retracting and releasing body 304 to move outward and expand, completing the work of fixing the reel. By controlling the reset body 201 to move backward through the reset key 202 in the reset mechanism 2, the gas exits through the moving notch, and the retracting and releasing body 304 gradually moves inward to reset. Among them, a filter sleeve 102 is provided inside to prevent dirt on the surface of the workpiece from entering the inside and causing blockage. A rubber pad is provided inside the retracting and releasing body 304 to isolate and protect the friction between the movable clamp 302 and the backing plate 303, thereby reducing the damage caused by the contact between components.

[0034] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A clog - proof air - expandable shaft, comprising a main body. The main body includes an air inlet structure (1), a reset mechanism (2) and a clamping assembly (3), and is characterized in that: An air inlet channel (101) is provided outside the air inlet structure (1). A filter sleeve (102) is provided inside the air inlet channel (101). A movable collar (103) is provided at the top on one side of the air inlet channel (101). A sealing plate (104) is installed at the top of the movable collar (103). An air inlet (105) is provided inside the sealing plate (104); A reset body (201) is provided around the outside of the reset mechanism (2). A reset key (202) is provided at the top of the reset body (201); A connecting plate (301) is provided at the bottom of the clamping assembly (3). Two groups of movable clamps (302) are provided outside the connecting plate (301). A backing plate (303) is provided inside the movable clamp (302). A winding and unwinding body (304) is provided at the top of the backing plate (303).

2. The air shaft for preventing blockage according to claim 1, characterized in that: The air inlet channel (101) is a cylinder with moving notches opened on its outer surface. There are four groups of moving notches which are strip - shaped and extend to both ends. A circular through - hole is provided inside the air inlet channel (101), and the through - hole extends to both ends of the air inlet channel (101). The filter sleeve (102) is a cylinder with two groups of filter holes inside. The filter holes are circular and penetrate through both sides of the outer surface of the filter sleeve (102). The movable collar (103) is circular - ring - shaped and is adaptively connected to the top of the filter sleeve (102). There are multiple groups of keys provided around the outside of the movable collar (103). The keys are square - shaped and are distributed in a circumferential array. The sealing plate (104) is a circular - ring plate with an inner diameter equal to that of the movable collar (103) and is adaptively connected. The air inlet (105) is tubular and is in communication with the inside of the air inlet channel (101).

3. The air shaft for preventing blockage according to claim 2, wherein: There are four groups of the reset bodies (201), all of which are arc - shaped plates and are evenly distributed in a circumferential array at equal distances outside the air inlet channel (101). The reset key (202) is a rectangular key and extends outside the movable collar (103).

4. The air shaft for preventing blockage according to claim 3, wherein: There are four groups of the connecting plates (301), all of which are strip - shaped plates and are evenly distributed in a circumferential array at equal distances and are closely attached to the outside of the air inlet channel (101). There are two groups of the movable clamps (302), both of which are arc - shaped plates and are centrosymmetrically distributed, and there are circular fixing bolts on the outside. One side of the movable clamp (302) is fixed to the mounting connecting plate (301), and the other side is located outside the backing plate (303). The backing plate (303) is a strip - shaped plate and has the same width as the connecting plate (301). There are four groups of the winding and unwinding bodies (304), all of which are arc - shaped plates.

5. The air shaft for preventing blockage according to claim 3, wherein: A rubber pad is provided inside the backing plate (303). The rubber pad is a strip - shaped pad with the same size as the backing plate (303) and is adaptively connected.

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