Dust conveying device

Abstract

The utility model provides a dust conveying device, which belongs to the technical field of environmental protection monitoring equipment and comprises a conveying pipeline, a fan, a dust inlet pipe, a metal net, a metal joint and a grounding wire, the metal net is of a tubular structure and is connected to the inner circumferential wall of the conveying pipeline. Wherein the metal net comprises a plurality of splicing sections, and the adjacent splicing sections are detachably connected; the metal joint is connected to the conveying pipeline; one end of the metal joint penetrates through the conveying pipeline and is in contact with the metal net; the metal joint is in sealing fit with the penetrating position of the conveying pipeline; one end of the grounding wire is electrically connected with the metal joint, and the other end is electrically connected with the grounding system. The metal net is arranged on the inner peripheral wall of the conveying pipeline, and the metal connector is connected with the electric wire, so that static electricity generated on the inner peripheral wall of the conveying pipeline can be guided to the grounding system after passing through the metal net and the metal connector, the static electricity on the inner peripheral wall of the conveying pipeline can be reduced, and dust adsorbed on the inner peripheral wall of the conveying pipeline is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of environmental monitoring equipment, and in particular relates to a dust conveying device. Background Art

[0002] The particle monitor can monitor the concentration of particles; before the particle monitor leaves the factory, it needs to be tested to determine whether the particle monitor meets the factory requirements. In the prior art, after the dust generating device generates dust, it is introduced into the conveying pipeline; a fan is provided at one end of the conveying pipeline, under the action of the fan, the dust can be transported in the conveying pipeline; the particle monitor can sample the dust in the conveying pipeline and display the particle concentration; the operator compares the reading of the particle monitor to be tested with the reading of the standard particle monitor to determine whether the particle monitor to be tested meets the factory requirements.

[0003] In the prior art, when dust is transported, static electricity may exist on the inner wall of the transport pipe, so that dust may be adsorbed on the inner wall of the transport pipe. Utility Model Content

[0004] The embodiment of the utility model provides a dust conveying device, which is intended to reduce the dust adsorbed on the inner peripheral wall of a conveying pipeline.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A dust conveying device is provided, comprising a conveying pipeline, a fan and a dust inlet pipe, wherein the fan is connected to one end of the conveying pipeline; the dust inlet pipe is connected to the air inlet of the fan; the dust conveying device also includes:

[0007] The metal mesh is a tubular structure and is connected to the inner circumferential wall of the conveying pipeline; wherein the metal mesh includes a plurality of splicing sections, and adjacent splicing sections are detachably connected;

[0008] A metal joint connected to the delivery pipeline; one end of the metal joint passes through the delivery pipeline and contacts the metal mesh; the metal joint is sealed and matched with the penetration position of the delivery pipeline;

[0009] A grounding wire, one end of which is electrically connected to the metal connector, and the other end of which is electrically connected to the grounding system.

[0010] In a possible implementation, one end of each of the splicing segments has a slot, and the other end of each of the splicing segments has an inserting portion, and the inserting portion is plugged and matched with the slot of the adjacent splicing segment;

[0011] The connection between adjacent splicing sections has an axial limiting structure to limit the axial displacement of the adjacent splicing sections.

[0012] In a possible implementation, the axial limiting structure includes a pin shaft, the splicing section has a first plug hole at the position of the slot, and the plug-in portion has a second plug hole aligned with the first plug hole;

[0013] After the plug-in portion is plugged and matched with the corresponding slot, the pin shaft is plugged and matched with the first plug hole and the second plug hole.

[0014] In a possible implementation, after the pin shaft is inserted into place, the outer end of the pin shaft is located in the first insertion hole; the outer end of the pin shaft is connected to a rope, and the other end of the rope is connected to the outer peripheral wall of the splicing section.

[0015] In a possible implementation, the metal joint includes:

[0016] A sleeve connected to the outer peripheral wall of the conveying pipeline;

[0017] An abutment rod is slidably disposed in the sleeve; one end of the abutment rod passes through the conveying pipe and abuts against the metal mesh;

[0018] The elastic member is located in the sleeve and sleeved on the abutment rod; two ends of the elastic member are respectively connected to the sleeve and the abutment rod.

[0019] In a possible implementation, a positioning ring is connected to the abutting rod, an outer peripheral wall of the positioning ring has an external thread, and a part of the inner peripheral wall of the sleeve has an internal thread;

[0020] The bottom of the elastic member abuts against the top of the positioning ring. When the positioning ring is threadedly engaged with the sleeve, the elastic member is in a compressed state, and the inner end of the abutting rod is located inside the side wall of the conveying pipe.

[0021] In a possible implementation, the end of the ground wire is electrically connected to a U-shaped terminal, and the U-shaped terminal can be plugged into and matched with the abutment rod; the abutment rod has a limiting mechanism that can axially limit the U-shaped terminal.

[0022] In a possible implementation, the limiting mechanism includes:

[0023] A pressure plate connected to the abutment rod; wherein the sleeve has an avoidance groove for plugging and matching the grounding wire;

[0024] When the U-shaped terminal is plugged into the abutment rod, the pressure plate can be plugged into the sleeve under the elastic force of the elastic member, and the pressure plate can press the U-shaped terminal into the sleeve, and the grounding wire is located in the avoidance groove.

[0025] In a possible implementation, the width of the U-shaped terminal is greater than the width of the avoidance groove.

[0026] The utility model provides a dust conveying device. Compared with the prior art, a metal mesh is arranged on the inner circumferential wall of the conveying pipe, and the metal joint is connected to the grounding wire. The static electricity generated by the inner circumferential wall of the conveying pipe can be guided to the grounding system after passing through the metal mesh and the metal joint. Therefore, the static electricity on the inner circumferential wall of the conveying pipe can be reduced, and the dust adsorbed on the inner circumferential wall of the conveying pipe can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of a dust conveying device provided in an embodiment of the utility model;

[0028] Figure 2 for Figure 1 The enlarged schematic diagram of the middle A part;

[0029] Figure 3 A cross-sectional view of a dust conveying device provided in an embodiment of the utility model;

[0030] Figure 4 for Figure 3 The enlarged schematic diagram of the middle B part;

[0031] Figure 5 A schematic diagram of a metal mesh portion of a dust conveying device provided in an embodiment of the utility model;

[0032] Figure 6 for Figure 5 The enlarged schematic diagram of the middle C part;

[0033] Figure 7 A schematic diagram of a metal joint portion of a dust conveying device provided in an embodiment of the utility model.

[0034] Explanation of the reference numerals: 1. Conveying pipeline; 2. Metal mesh; 21. Splicing section; 211. First plug hole; 22. Slot; 23. Connecting part; 231. Second plug hole; 24. Pin; 3. Metal joint; 31. Sleeve; 311. Avoidance groove; 312. Limiting ring; 32. Abutment rod; 33. Elastic member; 34. Positioning ring; 4. U-shaped terminal; 5. Pressure plate. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036] Please also read Figures 1 to 7 Now, a dust conveying device provided by the utility model is described. The dust conveying device comprises a conveying pipeline 1, a fan (not shown in the figure) and a dust inlet pipe (not shown in the figure), wherein the fan is connected to one end of the conveying pipeline 1; the dust inlet pipe is connected to the air inlet of the fan; the dust conveying device also comprises a metal mesh 2, a metal joint 3 and a grounding wire; the metal mesh 2 is a tubular structure and is connected to the inner wall of the conveying pipeline 1; wherein the metal mesh 2 comprises a plurality of splicing sections 21, and adjacent splicing sections 21 are detachably connected; the metal joint 3 is connected to the conveying pipeline 1; one end of the metal joint 3 passes through the conveying pipeline 1 and contacts with the metal mesh 2; the metal joint 3 is sealed and matched with the penetration position of the conveying pipeline 1; one end of the grounding wire is electrically connected to the metal joint 3, and the other end is electrically connected to the grounding system. The dust inlet pipe can convey dust airflow into the conveying pipeline.

[0037] The utility model provides a dust conveying device. Compared with the prior art, a metal mesh 2 is arranged on the inner wall of a conveying pipe 1, and is connected to a grounding wire through a metal joint 3. The static electricity generated by the inner wall of the conveying pipe 1 can be guided to the grounding system through the metal mesh 2 and the metal joint 3, thereby reducing the static electricity on the inner wall of the conveying pipe 1 and reducing the dust adsorbed on the inner wall of the conveying pipe 1.

[0038] For example, Figures 1 to 7 As shown, one end of each splicing segment 21 has a slot 22, and the other end of each splicing segment 21 has an insert portion 23, and the insert portion 23 is plugged into and matched with the slot 22 of the adjacent splicing segment 21; the connection between adjacent splicing segments 21 has an axial limiting structure to limit the axial displacement of the adjacent splicing segments 21.

[0039] It should be noted that when installing the metal mesh 2 inside the delivery pipeline 1, first put one of the splicing sections 21 into the delivery pipeline 1, then plug and match the other splicing section 21 with the splicing section 21, and axially position the two splicing sections 21 through the axial limiting structure, so that the two splicing sections 21 can be connected together, and then the spliced ​​splicing section 21 is inserted into the delivery pipeline 1; repeat the above process until the metal mesh 2 of the preset length is put in. Through the above configuration of the present application, the metal mesh 2 can be installed and disassembled, and the length of the metal mesh 2 can be selected according to actual conditions.

[0040] For example, Figures 1 to 7As shown, the axial limiting structure includes a pin shaft 24, the splicing section 21 has a first socket 211 at the position of the slot 22, and the plug-in portion 23 has a second socket 231 aligned with the first socket 211; after the plug-in portion 23 is plugged into and matched with the corresponding slot 22, the pin shaft 24 is plugged into and matched with the first socket 211 and the second socket 231.

[0041] It should be noted that, by plugging and cooperating the pin shaft 24 with the first plug hole 211 and the second plug hole 231 , the plug-in portion 23 can be fixed in the slot 22 , thereby fixing two adjacent splicing sections 21 together.

[0042] For example, Figures 1 to 7 As shown, after the pin 24 is inserted into place, the outer end of the pin 24 is located in the first plug hole 211; the outer end of the pin 24 is connected to a rope (not shown in the figure), and the other end of the rope is connected to the outer wall of the splicing section 21.

[0043] It should be noted that by connecting the pin shaft 24 and the outer peripheral wall of the splicing section 21 with a rope, the pin shaft 24 can be connected to the splicing section 21, thereby reducing the possibility of loss of the pin shaft 24. In addition, through the above-mentioned configuration of the present application, the rope does not affect the connection between the pin shaft 24 and the first plug hole 211 and the second plug hole 231.

[0044] For example, Figures 1 to 7 As shown, the metal joint 3 includes a sleeve 31, an abutting rod 32 and an elastic member 33; the sleeve 31 is connected to the outer peripheral wall of the conveying pipe 1; the abutting rod 32 is slidably arranged in the sleeve 31; one end of the abutting rod 32 passes through the conveying pipe 1 and abuts on the metal mesh 2; the elastic member 33 is located in the sleeve 31 and sleeved on the abutting rod 32; the two ends of the elastic member 33 are respectively connected to the sleeve 31 and the abutting rod 32. The abutting rod 32 abuts on the outer side wall of the metal mesh 2.

[0045] It should be noted that the abutment rod 32 is made of metal and the elastic member 33 can be a spring; after the metal mesh 2 is installed on the conveying pipeline 1, the abutment rod 32 can be pressed against the metal mesh 2 under the elastic force of the elastic member 33, thereby enabling the abutment rod 32 to be electrically connected to the metal mesh 2.

[0046] For example, Figures 1 to 7 As shown, a positioning ring 34 is connected to the abutment rod 32, and the outer peripheral wall of the positioning ring 34 has an external thread, and part of the inner peripheral wall of the sleeve 31 has an internal thread; wherein, the bottom of the elastic member 33 abuts against the top of the positioning ring 34, and when the positioning ring 34 and the sleeve 31 are threadedly matched, the elastic member 33 is in a compressed state, and the inner end of the abutment rod 32 is located inside the side wall of the conveying pipe 1.

[0047] It should be noted that when the metal mesh 2 needs to be removed, the abutment rod 32 is pulled upward and the bottom of the abutment rod 32 is separated from the metal mesh 2. At this time, the bottom of the abutment rod 32 enters the side wall of the conveying pipe 1 or enters the sleeve 31; then the positioning ring 34 is threadedly engaged with the sleeve 31, so that the abutment rod 32 can be fixed in this state, and the abutment rod 32 can be prevented from interfering with the metal mesh 2 when the metal mesh 2 is removed. When the positioning ring 34 is screwed out of the threaded section of the sleeve 31, the abutment rod 32 can slide into the conveying pipe 1 under the elastic force of the elastic member 33.

[0048] For example, Figures 1 to 7 As shown, the end of the grounding wire is electrically connected to a U-shaped terminal 4, which can be plugged into the abutment rod 32; the abutment rod 32 has a limiting mechanism that can axially limit the U-shaped terminal 4. The limiting mechanism includes a pressure plate 5, which is connected to the abutment rod 32; wherein the sleeve 31 has an avoidance groove 311 for plugging and matching the grounding wire; when the U-shaped terminal 4 is plugged into the abutment rod 32, the pressure plate 5 can be plugged into the sleeve 31 under the elastic force of the elastic member 33, and the pressure plate 5 can press the U-shaped terminal 4 into the sleeve 31, and the grounding wire is located in the avoidance groove 311. The width of the U-shaped terminal 4 is greater than the width of the avoidance groove 311.

[0049] It should be noted that when the positioning ring 34 is threadedly matched with the sleeve 31, the pressure plate 5 is located outside the sleeve 31, and the U-shaped terminal 4 can be inserted into the part of the abutment rod 32 located at the lower part of the pressure plate 5; when the positioning ring 34 is separated from the threaded section of the sleeve 31, the abutment rod 32 slides toward the inside of the conveying pipe 1 under the elastic force of the elastic member 33, so that the pressure plate 5 closes the top of the sleeve 31 and axially limits the U-shaped terminal 4; when the pressure plate 5 closes the top of the sleeve 31, the small end of the U-shaped terminal 4 is located in the avoidance groove 311 of the sleeve 31.

[0050] In addition, a limiting ring 312 is provided in the sleeve 31, and the limiting ring 312 is used to contact the bottom of the U-shaped terminal 4, and the limiting ring 312 and the abutment rod 32 are slidably matched; a sealing gasket is provided at the sliding connection position between the limiting ring 312 and the abutment rod 32 to ensure the sealing performance between the limiting ring 312 and the abutment rod 32.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dust conveying device, comprising a conveying pipeline, a fan and a dust inlet pipe, wherein the fan is connected to one end of the conveying pipeline; the dust inlet pipe is connected to the air inlet of the fan; characterized in that: The dust conveying device also includes: The metal mesh is a tubular structure and is connected to the inner circumferential wall of the conveying pipeline; wherein the metal mesh includes a plurality of splicing sections, and adjacent splicing sections are detachably connected; A metal joint connected to the delivery pipeline; one end of the metal joint passes through the delivery pipeline and contacts the metal mesh; the metal joint is sealed and matched with the penetration position of the delivery pipeline; A grounding wire, one end of which is electrically connected to the metal connector, and the other end of which is electrically connected to the grounding system.

2. A dust conveying device according to claim 1, characterized in that: One end of each of the splicing sections has a slot, and the other end of each of the splicing sections has an inserting portion, and the inserting portion is inserted and matched with the slot of the adjacent splicing section; The connection between adjacent splicing sections has an axial limiting structure to limit the axial displacement of the adjacent splicing sections.

3. A dust conveying device as claimed in claim 2, characterized in that: The axial limiting structure includes a pin shaft, the splicing section has a first plug hole at the position of the slot, and the plug-in portion has a second plug hole aligned with the first plug hole; After the plug-in portion is plugged and matched with the corresponding slot, the pin shaft is plugged and matched with the first plug hole and the second plug hole.

4. A dust conveying device as claimed in claim 3, characterized in that: After the pin shaft is inserted into place, the outer end of the pin shaft is located in the first insertion hole; the outer end of the pin shaft is connected with a rope, and the other end of the rope is connected to the outer peripheral wall of the splicing section.

5. A dust conveying device according to claim 1, characterized in that: The metal joint comprises: A sleeve connected to the outer peripheral wall of the conveying pipeline; An abutment rod is slidably disposed in the sleeve; one end of the abutment rod passes through the conveying pipe and abuts against the metal mesh; The elastic member is located in the sleeve and sleeved on the abutment rod; two ends of the elastic member are respectively connected to the sleeve and the abutment rod.

6. A dust conveying device as claimed in claim 5, characterized in that: The abutment rod is connected with a positioning ring, the outer peripheral wall of the positioning ring is provided with an external thread, and part of the inner peripheral wall of the sleeve is provided with an internal thread; The bottom of the elastic member abuts against the top of the positioning ring. When the positioning ring is threadedly engaged with the sleeve, the elastic member is in a compressed state, and the inner end of the abutting rod is located inside the side wall of the conveying pipe.

7. A dust conveying device as claimed in claim 5, characterized in that: The end of the grounding wire is electrically connected to a U-shaped terminal, and the U-shaped terminal can be plugged and matched with the abutment rod; the abutment rod is provided with a limiting mechanism that can axially limit the U-shaped terminal.

8. A dust conveying device as claimed in claim 7, characterized in that: The limiting mechanism comprises: A pressure plate connected to the abutment rod; wherein the sleeve has an avoidance groove for plugging and matching the grounding wire; When the U-shaped terminal is plugged into the abutment rod, the pressure plate can be plugged into the sleeve under the elastic force of the elastic member, and the pressure plate can press the U-shaped terminal into the sleeve, and the grounding wire is located in the avoidance groove.

9. A dust conveying device according to claim 8, characterized in that: The width of the U-shaped terminal is greater than the width of the avoidance groove.

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