Drawing type sampling device
By designing a pull-out sampling device and utilizing a combination of a piston column and a limit plate, the clogging and spillage problems of existing sampling devices are solved, fast and safe sample collection is achieved, and the risk of occupational diseases and operational difficulty are reduced.
Patent Information
- Application Number
- CN202422838557.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-20
Smart Images
Figure CN223461308U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of fly ash sampling, especially including a pull type sampling device. BACKGROUND
[0002] At present, many electric power enterprises have the demand of limestone powder and fly ash sampling, and the limestone powder and fly ash sampling detection is an important link before product delivery, but the existing sampling device collecting port cannot be closed, often causes water, dust and part of sundries to enter the sampling device, and affects the sampling result. The original sampling device has no sewage outlet, and is easy to cause blockage after long time use. And the old version sampling device can only be bagged through the material collecting port, and the sampling belt is usually small in opening, often causes bagging to be scattered and easy to cause fly powder, and affects the health of employees.
[0003] In summary, the general existing sampling device is large in opening, heavy in weight, difficult to rotate, often cannot rotate the sampling device, and after sampling is completed, the sample is easy to be scattered in the production site during bagging, is difficult to clean, and it is difficult for one person to complete the sampling work. Because the 6m layer is windy and easy to cause fly powder to be inhaled by the human body, the health of the laboratory personnel is harmed, and due to various reasons, a light and easy-to-operate sampling device with a small opening is urgently needed. SUMMARY
[0004] The utility model aims at overcoming the deficiency in the prior art, and provides a pull type sampling device.
[0005] The pull type sampling device comprises a powder collecting pipe, a powder outlet pipe and a piston column, the powder collecting pipe is sequentially provided with a powder collecting pipe front section, a powder collecting pipe middle section and a powder collecting pipe rear section from front to back, a powder collecting port is formed in the upper portion of the powder collecting pipe middle section, the top end of the powder outlet pipe is communicated with the powder collecting pipe rear section, and a limiting plate is arranged in the rear portion of the powder outlet pipe in the powder collecting pipe rear section.
[0006] A hole is formed in the center of the limiting plate, a pull rod is connected to the rear end of the piston column, and the pull rod extends to the rear of the powder collecting pipe through the hole in the center of the limiting plate.
[0007] Preferably, the length of the piston column is greater than or equal to the distance between the front end of the powder collecting port and the limiting plate.
[0008] Preferably, the front end of the powder collecting pipe front section is closed, and the length of the piston column is less than or equal to the length of the powder collecting pipe front section.
[0009] Preferably, the powder collecting port is formed above the middle height of the powder collecting pipe middle section.
[0010] Preferably, the length of the pull rod is greater than or equal to the difference between the length of the powder collecting pipe and the length of the piston column, and a handle is connected to the rear end of the pull rod.
[0011] Preferably, the diameter of the central hole of the limiting plate matches the diameter of the pull rod.
[0012] Preferably, the diameter of the powder collecting tube before the powder outlet tube is smaller than the diameter of the powder collecting tube after the powder outlet tube.
[0013] The utility model discloses the beneficial effects are:
[0014] 1) the utility model discloses the transverse powder collecting tube and vertical powder outlet tube are set up, and the powder collecting tube is set up with the powder collecting port in certain position, and the piston column of pullable piston is set up in the powder collecting tube, and the powder sample in the powder collecting port is dragged to the powder outlet tube through the piston movement of piston column, realizes the effective collection of sample by connecting the powder outlet tube with the discharge port bagging, does not cause the flying powder, does not cause the influence to the environment any longer, and the condition of staff inhaling sample will greatly reduce, and the probability of professional disease of the laboratory personnel greatly drops.
[0015] 2) the utility model discloses the length of piston column is greater than or equal to the distance between the front end of powder collecting port and limiting plate, so that when the piston column is pulled to the last time, the powder collecting port is still closed, at this time, the powder does not enter the powder collecting tube, avoids the piston column to bring when re-advance, causes the device to be blocked, therefore, it is not necessary to set up the blow-off port, and it is not necessary to clean the blockage continuously.
[0016] 3) the utility model discloses the horizontal pull piston column, realizes the quick collection of sample, and after the operation mode improvement, the difficult rotation and other shortcomings no longer appear, and the sampling mode is convenient and fast, reduces the sample loss when sampling, reduces the sampling time of the laboratory personnel, reduces the time economic loss. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is three-dimensional structure diagram of pull type sampling device;
[0018] Figure 2 It is side view of pull type sampling device;
[0019] Figure 3 It is sectional view of pull type sampling device when powder collecting port is completely opened;
[0020] Figure 4 It is sectional view of pull type sampling device when piston column partially shields powder collecting port;
[0021] Figure 5 It is sectional view when piston column completely shields powder collecting port and moves to the upper side of powder outlet tube;
[0022] Figure 6 It is sectional view of pull type sampling device when piston column moves to limiting plate.
[0023] Explanation of reference signs: powder collecting pipe front section 11, powder collecting port 12, powder collecting pipe rear section 13, limiting plate 14, powder outlet pipe 2, piston column 3, pull rod 31, handle 32. DETAILED DESCRIPTION
[0024] The utility model will be further described below in combination with examples. The following examples are only used to help understand the utility model. It should be pointed out that, for ordinary personnel in the technical field, without departing from the principle of the utility model, the utility model can be modified, and these improvements and modifications also fall within the protection scope of the utility model claims.
[0025] Example one
[0026] As an example, the pull-out type sampling device comprises a powder collecting pipe, a powder outlet pipe 2 and a piston column 3, and the powder collecting pipe is sequentially provided with a powder collecting pipe front section 11, a powder collecting pipe middle section and a powder collecting pipe rear section 13 from front to back. The piston column 3 moves horizontally in the powder collecting pipe.
[0027] The powder collecting pipe middle section is provided with a powder collecting port 12, and in the embodiment, the powder collecting port 12 is arranged above the middle height of the powder collecting pipe middle section. The powder outlet pipe 2 is connected at the powder collecting pipe rear section 13, specifically, the top end of the powder outlet pipe 2 is communicated with the powder collecting pipe rear section 13, and the limiting plate 14 is arranged at the rear part of the powder outlet pipe 2 in the powder collecting pipe rear section 13, for limiting the moving range of the piston column 3.
[0028] The length of the piston column 3 is greater than or equal to the distance between the front end of the powder collecting port 12 and the limiting plate 14.
[0029] The powder collecting pipe front section 11 is closed, and the length of the piston column 3 is less than or equal to the length of the powder collecting pipe front section 11.
[0030] The limiting plate 14 is centrally provided with an opening, the piston column 3 is connected with a pull rod 31, the pull rod 31 extends to the rear of the powder collecting pipe through the opening in the center of the limiting plate 14, and the pull rod 31 is connected with a handle 32 at the rear end.
[0031] The powder collecting port 12 is only opened when the piston column 3 moves to the powder collecting pipe front section 11, so that the limestone powder and fly ash cannot block the powder collecting pipe front section 11, and the pull-out type sampling device does not need to be disassembled for cleaning. The relatively closed powder collecting pipe structure greatly reduces the situation that employees inhale samples, and greatly reduces the probability of occupational diseases of laboratory personnel.
[0032] Moreover, the pull-out type sampling device only needs to be horizontally pulled out to realize sampling, and after the operation mode is improved, the disadvantages such as difficult rotation no longer occur, and the sampling mode is convenient and fast. The new sampling device no longer causes the sample to be spilled in the production site, and no longer affects the environment. The sample loss is reduced during sampling, the sampling time of laboratory personnel is reduced, and the time and economic losses are reduced.
[0033] Embodiment Two
[0034] As another embodiment, this embodiment two is based on embodiment one, and proposes a more specific pull-type sampling device.
[0035] The length of the piston column 3 is greater than or equal to the distance between the front end of the powder collecting port 12 and the limiting plate 14. The front section 11 of the powder collecting pipe is closed, and the length of the piston column 3 is less than or equal to the front section 11 of the powder collecting pipe. The powder collecting pipe is obtained by welding a Φ45 round steel pipe with a length of 125 mm, a Φ45 round steel pipe with a length of 45 mm, and a Φ42 round steel pipe with a length of 200 mm, and the total length is 370 mm. In front of the powder outlet pipe 2, the diameter of the powder collecting pipe is smaller than the diameter of the powder collecting pipe after the position of the powder outlet pipe 2, so as to facilitate the insertion of the powder outlet pipe 2 to a specific position.
[0036] Specifically, in this embodiment, the front section 11 and the middle section of the powder collecting pipe are located in the Φ42 round steel pipe section with a length of 200 mm, the length of the front section 11 of the powder collecting pipe is 122.5 mm, the length of the middle section of the powder collecting pipe and the powder collecting port 12 is equal to 60 mm, and the remaining 17.5 mm belongs to the rear section 13 of the powder collecting pipe together with the Φ45 round steel pipe with a length of 45 mm and the Φ45 round steel pipe with a length of 125 mm behind. The limiting plate 14 is arranged at the most rear end of the powder outlet pipe 2. The piston column 3 is a Φ37 cylinder with a length of 122.5 mm.
[0037] Therefore, the length of the piston column 3 is equal to the length of the front section 11 of the powder collecting pipe, and also equal to the sum of the length of the powder collecting port 12 and the diameter of the powder outlet pipe 2.
[0038] When the pull-type sampling device is installed, the powder collecting port 12 faces upwards and is connected with the outlet of the limestone powder and fly ash, the piston column 3 is located at the most front end of the front section 11 of the powder collecting pipe, and the powder collecting port 12 is completely open, so that the limestone powder and fly ash falls into the middle section of the powder collecting pipe.
[0039] When sampling is needed, the piston column 3 and the pull rod 31 are pulled backward by the handle 32, the rear end face of the piston column 3 pushes the limestone powder and fly ash in the middle section of the powder collecting pipe backward, and gradually falls into the powder outlet pipe 2 to be collected by the lower receiving device.
[0040] When the piston column 3 gradually moves backward until the rear end face of the piston column 3 and the front face of the limiting plate 14 are in close contact, at this time, the original limestone powder and fly ash in the middle section of the powder collecting pipe have been completely discharged through the powder outlet pipe 2, and at the same time, since the length of the piston column 3 exactly meets the condition of completely plugging the powder collecting port 12, the limestone powder and fly ash above cannot enter the powder collecting pipe, so the front section 11 of the powder collecting pipe will not be blocked.
[0041] It should be noted that the same or similar parts in this embodiment and embodiment one can be mutually referred to, and will not be described in detail in this application.
[0042] The various embodiments described in this specification are presented as examples of the application. Each embodiment is presented highlighting different aspects of the application, and the embodiments are not mutually exclusive.
Claims
1. A pull-type sampling device, characterized by, The application relates to a powder collecting device, which comprises a powder collecting pipe, a powder discharging pipe and a piston column. A limiting plate is arranged in the powder collecting pipe rear section. A hole is arranged in the center of the limiting plate.
2. The pull-type sampling device of claim 1, wherein, The length of the piston column is greater than or equal to the distance between the front end of the powder collecting port and the limiting plate.
3. The pull-type sampling device of claim 1, wherein, The front end of the powder collecting pipe front section is closed, and the length of the piston column is less than or equal to the length of the powder collecting pipe front section.
4. The pull-type sampling device of claim 1, wherein, The powder collecting port is arranged above the middle height of the powder collecting pipe middle section.
5. The pull-type sampling device of claim 1, wherein, The length of the pull rod is greater than or equal to the difference between the length of the powder collecting pipe and the length of the piston column.
6. The pull-type sampling device of claim 1, wherein, The rear end of the pull rod is connected with a handle.
7. The pull-type sampling device of claim 1, wherein, The diameter of the hole in the center of the limiting plate matches the diameter of the pull rod. In front of the powder discharging pipe, the diameter of the powder collecting pipe is less than the diameter of the powder collecting pipe after the powder discharging pipe.