A pressure transmitter device for emulsion mixing truck is convenient to replace
By modifying the nut end of the pressure transmitter in the emulsified mixing vehicle, a connection base adapted to the new pressure sensor was formed, solving the problem of model shortage, realizing compatibility between the new pressure sensor and the old pressure transmitter, simplifying the replacement process and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN HAIXIA KEHUA FUXING CONSTR ENG CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-24
AI Technical Summary
The pressure transmitters used in emulsified mixing trucks are being updated and replaced rapidly, with older models gradually being discontinued. This makes it difficult to purchase the same model when repairing or replacing them, and it also makes it difficult to connect the new pressure sensor to the four-way joint of the drug delivery pipeline.
Modify the nut end of the old pressure transmitter to form a connection base adapted to the new pressure sensor. Fix the nut base to the four-way part of the drug delivery pipeline by welding, and form an internal thread in the nut base to adapt to the hollow screw of the commercially available pressure sensor.
This achieves compatibility between the new pressure sensor and the old pressure transmitter interface, simplifies the replacement process, saves maintenance time, reduces costs, and improves work efficiency.
Smart Images

Figure CN224552597U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pressure transmitters for mixed-load vehicles, and in particular to a device for easily replacing pressure transmitters for emulsified mixed-load vehicles. Background Technology
[0002] During on-site operations of the mixed emulsion explosives truck, the explosives are delivered to the borehole via pipelines and delivery hoses. Monitoring the delivery pressure during this process is crucial to ensure accurate and stable delivery, thus guaranteeing safety. Monitoring pressure parameters is also essential to determine if the mixed-loading truck is operating normally. Existing pressure transmitters (as attached) Figure 1 It consists of a transmitter and display conversion device, a screw end (solid), and a nut end (with a sensor plate), etc. The nut is connected to the four-way joint of the drug delivery pipeline (as shown in the attached figure). Figure 3 The principle is that the substrate comes into contact with the sensing device through the four-way joint of the drug delivery pipeline, and the information is transmitted to the display conversion device through the screw to display the pressure parameters.
[0003] The drawbacks of existing technology are as follows: When a pressure sensor malfunctions and needs repair or replacement, the rapid pace of model updates and the gradual discontinuation of older pressure transmitters make it difficult to purchase the same model, necessitating the use of a different pressure sensor. Furthermore, newer pressure sensors on the market have different constructions and sensing devices, and their screws cannot be connected to the nut fixing end of the four-way connector on the drug delivery pipeline. Therefore, there is an urgent need for a device that facilitates the replacement of pressure transmitters in emulsion mixing trucks and allows for the connection of newer pressure sensors to the four-way connector of the drug delivery pipeline. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a device for easily replacing the pressure transmitter of an emulsion mixing vehicle, which can be connected to the four-way section of the drug delivery pipeline using new pressure sensors available on the market.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a device for easy replacement of pressure transmitters in emulsified mixing vehicles, including a four-way section of the drug delivery pipeline, the four-way section of the drug delivery pipeline includes four interfaces, the upper interface is connected to the drug inlet pipeline, the lower interface is connected to the drug outlet hose, the left interface is connected to the safety valve pipeline, and the right interface is fixedly connected to a nut base, the nut base is formed by cutting off the sensor plate from the nut end of a traditional pressure transmitter, and its internal thread is adapted to connect with the hollow screw of a commercially available pressure sensor.
[0006] Furthermore, the nut base is fixed to the right interface of the four-way section of the drug delivery pipeline by welding.
[0007] Furthermore, the welding method is argon arc welding with continuous weld seam, and the weld seam height is not less than 1.2 times the wall thickness of the nut base.
[0008] Furthermore, the length of the hollow screw is adjustable according to the installation depth of the nut base.
[0009] Furthermore, triangular reinforcing plates are provided at the right interface and the drug dispensing interface.
[0010] The beneficial effects of this utility model are as follows: Compared with the prior art, by modifying the nut end of the old pressure transmitter and permanently fixing it to the four-way part of the drug delivery pipeline, a connection base adapted to the new pressure sensor is formed, realizing the compatibility of the interface between the new pressure sensor and the old pressure transmitter. This solves the problem of the shortage of the original pressure transmitter model in the market, greatly simplifies the replacement process, saves maintenance time, and improves work efficiency. The device utilizes discarded pressure sensor parts for modification, which is convenient to obtain and has low material costs. Moreover, it can be made by the company's existing mechanics or technicians, significantly reducing maintenance and replacement costs. Attached Figure Description
[0011] Figure 1 A schematic diagram of the structure of an existing traditional pressure transmitter;
[0012] Figure 2 This is a schematic diagram of the structure of an existing traditional pressure sensor;
[0013] Figure 3 This is a schematic diagram of a device for easily replacing the pressure transmitter of an emulsified mixing truck, according to a specific embodiment of this utility model.
[0014] Figure 4 A schematic diagram of the nut end structure of a traditional pressure transmitter;
[0015] Figure 5 This is a schematic diagram of the structure of a nut base for a pressure transmitter device in an emulsified mixing vehicle, which is a specific embodiment of the present invention.
[0016] Label Explanation
[0017] 1. Traditional pressure transmitter; 11. Transmitter display conversion device; 12. Solid screw end; 13. Nut end;
[0018] 2. Pressure sensor; 21. Hollow screw; 22. Sensor plate;
[0019] 3. Four-way junction of drug delivery pipeline; 31. Drug inlet pipeline; 32. Drug outlet hose; 33. Safety valve pipeline;
[0020] 4. Nut base; 41. Internal thread;
[0021] 5. Triangle-enhanced version. Detailed Implementation
[0022] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.
[0023] Please refer to Figures 1 to 5 A pressure transmitter device for easy replacement of emulsified mixing vehicles includes a four-way section 3 for drug delivery pipeline. The four-way section 3 for drug delivery pipeline includes four interfaces: the upper interface is connected to the drug inlet pipeline 31, the lower interface is connected to the drug outlet hose 32, the left interface is connected to the safety valve pipeline 33, and the right interface is fixedly connected to a nut base 4. The nut base 4 is formed by cutting off the sensor plate 22 from the nut end of a conventional pressure transmitter 1, and its internal thread 41 is adapted to be connected to the hollow screw 21 of a commercially available pressure sensor 2.
[0024] In the above embodiments, a pressure sensor 2 is purchased from the market. Based on the thread of the screw of the pressure sensor 2, the sensor plate 22 is cut off from the nut end of the original discarded traditional pressure transmitter 1, and the internal thread 41 matching the screw thread is machined. Then, the nut base 4 is fixedly connected to the right interface. When replacing the pressure transmitter, it is only necessary to tighten the screw of the new pressure sensor 2 with the internal thread 41 of the nut base 4 fixed on the pipeline. This greatly simplifies the replacement process, saves maintenance time, and improves work efficiency. Compared with the existing technology, by modifying the nut end of the old pressure transmitter and permanently fixing it to the four-way part 3 of the drug delivery pipeline, a connection base adapted to the new pressure sensor 2 is formed, realizing the compatibility of the interface between the new pressure sensor 2 and the old pressure transmitter. This solves the problem of the shortage of the original pressure transmitter model on the market. The device uses the discarded pressure sensor 2 parts for modification, which is convenient to obtain and has low material cost. It can also be made by the company's existing mechanics or technicians, which significantly reduces maintenance and replacement costs.
[0025] As an optional implementation, the nut base 4 is fixed to the right interface of the four-way section 3 of the drug delivery pipeline by welding.
[0026] As an optional implementation, the welding method is argon arc welding of continuous weld seams, and the weld seam height is not less than 1.2 times the wall thickness of the nut base 4.
[0027] In the above embodiments, the connection strength and sealing between the nut base 4 and the pipe four-way part can be ensured, and the high pressure environment during the operation of the emulsified mixing vehicle can be withstood to prevent media leakage.
[0028] As an optional implementation, the length of the hollow screw 21 is adjustable according to the installation depth of the nut base 4.
[0029] In the above embodiments, the corresponding screw length can be cut to fit the installation depth of the internal thread 41 of the nut base 4.
[0030] As an optional implementation, triangular reinforcing plates are provided at the right interface and the drug dispensing interface.
[0031] In the above embodiments, by setting the triangular reinforcement 5, the stability of the right interface and the four-way junction of the drug delivery pipeline 3 can be improved.
[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A device for easily replacing pressure transmitters in emulsified mixing trucks, characterized in that, The device includes a four-way connector for drug delivery pipelines. The four-way connector has four interfaces: the upper interface is connected to the drug inlet pipeline, the lower interface is connected to the drug outlet hose, the left interface is connected to the safety valve pipeline, and the right interface is fixedly connected to a nut base. The nut base is formed by cutting off the sensor plate from the nut end of a traditional pressure transmitter, and its internal thread is adapted to connect with the hollow screw of a commercially available pressure sensor.
2. The device for facilitating the replacement of pressure transmitters in emulsified mixing trucks according to claim 1, characterized in that, The nut base is fixed to the right interface of the four-way section of the drug delivery pipeline by welding.
3. The device for facilitating the replacement of pressure transmitters in emulsified mixing trucks according to claim 2, characterized in that, The welding method is argon arc welding with continuous weld seam, and the weld seam height is not less than 1.2 times the wall thickness of the nut base.
4. The device for facilitating the replacement of pressure transmitters in emulsified mixing trucks according to claim 1, characterized in that, The length of the hollow screw is adjustable according to the installation depth of the nut base.
5. The device for facilitating the replacement of pressure transmitters in emulsified mixing trucks according to claim 1, characterized in that, Triangular reinforcing plates are provided at the right interface and the medicine outlet interface.