Anti-swelling soft connection device

Abstract

The utility model discloses an anti-swelling soft connection device which comprises an upper short-circuit assembly, a lower short-circuit assembly and cylindrical filter cloth. The upper pup joint assembly comprises an upper pup joint pipe and an upper sleeve, and the upper sleeve is arranged on the outer wall of the upper pup joint pipe; the lower pup joint assembly comprises a lower pup joint pipe and a lower sleeve, the bottom end of the lower sleeve is connected with the top end of the lower pup joint pipe, and materials fall into the top end of the lower sleeve from the bottom end of the upper sleeve; the diameter of the upper short connecting pipe is smaller than that of the lower sleeve, and the diameter of the upper sleeve is equal to that of the lower sleeve; the upper end of the cylindrical filter cloth is fixed on the outer wall of the upper sleeve through a first hoop, and the lower end of the cylindrical filter cloth is fixed on the outer wall of the lower sleeve through a second hoop. The utility model provides an anti-swelling soft connection device which reduces swelling, ensures effectiveness of soft connection and improves metering accuracy.

Description

Technical Field

[0001] The utility model relates to an anti-expansion bag soft connection device. Background Art

[0002] At present, in the production process of mortar used in the construction industry, various sand materials and powder materials need to be measured by a weighing scale, and then put into a mixer for mixing. A soft connection is usually used between the weighing scale and the mixer. The soft connection generally adopts a filter cloth connection structure to avoid the measurement error of the weighing scale caused by equipment vibration. However, since the sand materials and powder materials will spread around when they fall into the mixer, this will cause the filter cloth of the soft connection to swell. After the swelling, the filter cloth changes from a soft state to a tight state, so that the original soft connection becomes a state close to a hard connection, which still affects the measurement accuracy. Summary of the invention

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an anti-bag swelling soft connection device to reduce the occurrence of bag swelling, ensure the effectiveness of the soft connection, and improve the measurement accuracy.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] An anti-expansion bag soft connection device, comprising an upper short-circuit assembly, a lower short-circuit assembly and a cylindrical filter cloth;

[0006] The upper short-circuit assembly comprises an upper short-circuit tube and an upper sleeve, wherein the upper sleeve is arranged on the outer wall of the upper short-circuit tube;

[0007] The lower short-circuit assembly includes a lower short-circuit pipe and a lower casing, the bottom end of the lower casing is connected to the top end of the lower short-circuit pipe, and the material falls from the bottom end of the upper casing into the top end of the lower casing;

[0008] The diameter of the upper short pipe is smaller than the diameter of the lower casing, and the diameter of the upper casing is equal to the diameter of the lower casing;

[0009] The upper end of the cylindrical filter cloth is fixed on the outer wall of the upper sleeve through a first clamp, and the lower end of the cylindrical filter cloth is fixed on the outer wall of the lower sleeve through a second clamp.

[0010] Furthermore, a first annular protrusion is provided on the outer wall of the upper sleeve, the upper end of the cylindrical filter cloth is covered on the first annular protrusion, and a groove cooperating with the first annular protrusion is provided on the inner wall of the first clamping hoop, and the first clamping hoop cooperates with the first annular protrusion to clamp one end of the cylindrical filter cloth.

[0011] Furthermore, a second annular protrusion is provided on the outer wall of the lower sleeve, the lower end of the cylindrical filter cloth is covered on the second annular protrusion, a groove cooperating with the second annular protrusion is provided on the inner wall of the second clamp, and the second clamp cooperates with the second annular protrusion to clamp the lower end of the cylindrical filter cloth.

[0012] Furthermore, a plurality of silencers are arranged at the top end of the upper sleeve, and the silencers are used to connect to an external dust collector.

[0013] Furthermore, an upper flange is provided at the top end of the upper short pipe.

[0014] Furthermore, a lower flange is provided at the bottom end of the lower short pipe.

[0015] The above technical solution is adopted. The utility model adopts a soft connection structure of an upper short-circuit assembly, a lower short-circuit assembly and a cylindrical filter cloth. The diameter of the upper short-circuit pipe is smaller than the diameter of the lower sleeve. In this way, the material can be prevented from diffusing outward during the falling process, thereby reducing the occurrence of bag swelling. In addition, a muffler is added to extract part of the air in the filter cloth and the pipeline, thereby reducing the pressure difference, alleviating the diffusion of the material, and further reducing the occurrence of bag swelling. The effectiveness of the soft connection is ensured and the metering accuracy is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the anti-expansion bag soft connection device of the utility model;

[0017] Figure 2 for Figure 1 Side view of

[0018] Figure 3 It is a structural schematic diagram of the upper short-circuit assembly and the lower short-circuit assembly of the utility model. DETAILED DESCRIPTION

[0019] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0020] like Figure 1 , 2 As shown in , 3 , this embodiment provides an anti-expansion bag soft connection device, which includes an upper short-circuit component 1, a lower short-circuit component 2 and a cylindrical filter cloth 3.

[0021] The upper short-circuit assembly 1 comprises an upper short-circuit tube 11 and an upper sleeve 12 . The upper sleeve 12 is arranged on the outer wall of the upper short-circuit tube 11 .

[0022] The lower short-circuit assembly 2 includes a lower short-circuit pipe 21 and a lower sleeve 22 . The bottom end of the lower sleeve 22 is connected to the top end of the lower short-circuit pipe 21 , and the material falls from the bottom end of the upper sleeve 12 into the top end of the lower sleeve 22 .

[0023] The diameter of the upper short pipe 11 is smaller than the diameter of the lower sleeve 22, and the diameter of the upper sleeve 12 is equal to the diameter of the lower sleeve 22. In this embodiment, the diameter of the upper short pipe 11 is designed to be smaller than the diameter of the lower sleeve 22, so that when the material falls, the material will all fall into the lower sleeve 22, avoiding the material from spreading outward, and reducing the occurrence of bag expansion.

[0024] The upper and lower ends of the cylindrical filter cloth 3 are respectively fixed on the outer walls of the upper sleeve 12 and the lower sleeve 22 to form a flexible connection. The upper end of the cylindrical filter cloth 3 is fixed on the outer wall of the upper sleeve 12 through the first clamp 4, and the lower end of the cylindrical filter cloth 3 is fixed on the outer wall of the lower sleeve 22 through the second clamp 5.

[0025] like Figure 3 As shown, the outer wall of the upper sleeve 12 of this embodiment is provided with a first annular protrusion 121, the upper end of the cylindrical filter cloth 3 is covered on the first annular protrusion 121, the inner wall of the first clamp 4 is provided with a groove matched with the first annular protrusion 121, and the first clamp 4 cooperates with the first annular protrusion 121 to clamp one end of the cylindrical filter cloth 3. The outer wall of the lower sleeve 22 is provided with a second annular protrusion 221, the lower end of the cylindrical filter cloth 3 is covered on the second annular protrusion 221, the inner wall of the second clamp 5 is provided with a groove matched with the second annular protrusion 221, and the second clamp 5 cooperates with the second annular protrusion 221 to clamp the lower end of the cylindrical filter cloth 3. In this embodiment, annular protrusions are added to the outer walls of the upper sleeve 12 and the lower sleeve 22 to facilitate the installation and fixation of the cylindrical filter cloth 3, and then the two ends of the cylindrical filter cloth 3 are firmly fixed by clamping the clamp.

[0026] like Figure 1 , 2 As shown, a plurality of silencers 6 are arranged at the top of the upper sleeve 12 of this embodiment, and the silencers 6 are connected to the external dust collector through a conduit. When the material falls, the dust collector is turned on, and part of the air in the filter cloth and the pipeline is extracted through the silencer 6, thereby reducing the pressure difference and alleviating the diffusion of the material, thereby further reducing the occurrence of bag swelling.

[0027] like Figure 2 As shown, the top end of the upper short pipe 11 of this embodiment is provided with an upper flange 111, through which the butterfly valve and the metering scale are connected. The bottom end of the lower short pipe 21 is provided with a lower flange 211, through which the butterfly valve and the mixer are connected.

[0028] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-expansion flexible connection device, characterized in that: It comprises an upper short-circuit assembly (1), a lower short-circuit assembly (2) and a cylindrical filter cloth (3); The upper short-circuit assembly (1) comprises an upper short-circuit tube (11) and an upper sleeve (12), wherein the upper sleeve (12) is arranged on the outer wall of the upper short-circuit tube (11); The lower short-circuit assembly (2) comprises a lower short-circuit pipe (21) and a lower sleeve (22), the bottom end of the lower sleeve (22) is connected to the top end of the lower short-circuit pipe (21), and the material falls from the bottom end of the upper sleeve (12) into the top end of the lower sleeve (22); The diameter of the upper short pipe (11) is smaller than the diameter of the lower casing (22), and the diameter of the upper casing (12) is equal to the diameter of the lower casing (22); The upper end of the cylindrical filter cloth (3) is fixed to the outer wall of the upper sleeve (12) via a first clamp (4), and the lower end of the cylindrical filter cloth (3) is fixed to the outer wall of the lower sleeve (22) via a second clamp (5).

2. The anti-expansion flexible connection device according to claim 1, characterized in that: A first annular protrusion (121) is provided on the outer wall of the upper sleeve (12), the upper end of the cylindrical filter cloth (3) is covered on the first annular protrusion (121), and a groove cooperating with the first annular protrusion (121) is provided on the inner wall of the first clamping hoop (4), and the first clamping hoop (4) cooperates with the first annular protrusion (121) to clamp one end of the cylindrical filter cloth (3).

3. The anti-bulging flexible connection device according to claim 1, characterized in that: A second annular protrusion (221) is provided on the outer wall of the lower sleeve (22), the lower end of the cylindrical filter cloth (3) is covered on the second annular protrusion (221), a groove cooperating with the second annular protrusion (221) is provided on the inner wall of the second clamping hoop (5), and the second clamping hoop (5) cooperates with the second annular protrusion (221) to clamp the lower end of the cylindrical filter cloth (3).

4. The anti-expansion flexible connection device according to claim 1, characterized in that: A plurality of silencers (6) are provided at the top end of the upper sleeve (12), and the silencers (6) are used to connect to an external dust collector.

5. The anti-bulging flexible connection device according to claim 1, characterized in that: An upper flange (111) is provided at the top end of the upper short pipe (11).

6. The anti-expansion flexible connection device according to claim 1, characterized in that: A lower flange (211) is provided at the bottom end of the lower short pipe (21).

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