Portable locomotive temperature relay testing device
By designing a portable locomotive temperature relay testing device, the problem of time-consuming disassembly and transfer testing in existing technologies has been solved, enabling rapid and accurate temperature relay testing and improving work efficiency and safety.
Patent Information
- Application Number
- CN202520017627.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-06
AI Technical Summary
In the existing technology, the testing of locomotive temperature relays requires them to be removed and transferred to the instrument maintenance team for verification, which results in long time consumption, increased repair costs and impact on the production cycle.
A portable locomotive temperature relay testing device was designed, comprising a test chamber, a top cover, a clamping assembly, and a rubber anti-slip block. It features portability and stability. The relay is fixed by the clamping assembly, and a water inlet and an exhaust port are provided on the top cover to facilitate liquid addition and gas discharge. A return spring is used to achieve quick installation and sealing.
It simplifies the testing process, improves work efficiency, reduces labor intensity, lowers repair and rework costs, and ensures the accuracy and safety of the tests.
Smart Images

Figure CN223842075U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of temperature relay technology, specifically a portable locomotive temperature relay testing device. Background Technology
[0002] After the locomotive overhaul is completed, water resistance and mains line tests must be performed. If any problems are found with the water temperature or oil temperature display during the test, the first thing to check is whether the output value of the temperature relay is correct. The known testing method is for the test electrician to remove the temperature relay and take it to the instrument maintenance team for verification.
[0003] The invention, titled "Portable Locomotive Temperature Relay Testing Device" (publication number CN105021976A), relates to a temperature relay testing device used on locomotives. It primarily addresses the problem that known testing methods require electricians to remove the temperature relay and take it to the instrument maintenance team for verification, resulting in significant time delays, increased locomotive repair costs, and disruptions to production cycles. This invention features an electric heater inside the housing, with a kerosene thermometer vertically inserted into the housing through the upper cover. The upper cover has a water inlet and a temperature relay mounting hole, and the water inlet is covered with a cap with an exhaust vent. This invention uses plexiglass as the outer shell, making the kerosene thermometer readings clearly visible. Due to the rational combination of AC 220V and DC 110V dual-set electric heating tubes, this invention has the advantages of simple structure, convenient operation, reduced labor intensity, improved work efficiency, and reduced repair and rework costs. The current device has a relatively simple structure, making it difficult to effectively fix the relay and maintain the cover plate during testing. Therefore, we propose a portable locomotive temperature relay testing device. Utility Model Content
[0004] The purpose of this invention is to provide a portable locomotive temperature relay testing device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable locomotive temperature relay testing device, comprising a test chamber:
[0006] The test chamber is fitted with a top cover on its upper surface. The top cover has mounting slots on both the left and right sides, and each of the two mounting slots contains a thermometer. The test chamber has mounting tubes on both the front and rear sides, and each of the two mounting tubes contains a clamping component.
[0007] Preferably, a base is provided at each of the four corners of the lower surface of the test chamber, and each of the four bases is provided with a rubber anti-slip block at the lower end to improve the stability of the device.
[0008] Preferably, the test chamber is provided with handles on both the left and right sides, and a handle is provided on the upper surface of the top cover, so as to facilitate the portability of the test chamber.
[0009] Preferably, a water inlet is provided on the front side of the upper surface of the top cover, and vent holes are provided at the four corners of the upper surface of the top cover to facilitate the addition of suitable liquid into the experimental chamber.
[0010] Preferably, the top cover is movably fitted with mounting bolts on both the left and right sides, and the upper ends of both the left and right sides of the test chamber are provided with matching slots to facilitate fixing the top cover.
[0011] Preferably, both sets of mounting bolts are fitted with return springs on their outer sides, and both ends of the return springs are connected to the top cover and the mounting bolts, which facilitates fixing the mounting bolts.
[0012] Preferably, both sets of clamping assemblies include an adjusting rod, which is inserted into the middle of the mounting tube via a threaded structure. A clamping plate is installed at the rear end of the adjusting rod, and an adjusting piece is installed at the front end of the adjusting rod, so as to facilitate the clamping assembly to fix the relay.
[0013] This utility model has at least the following beneficial effects:
[0014] With its mounting bolts and return springs, the movable mounting bolts allow the top cover to be easily removed from the test chamber, facilitating cleaning, maintenance, or component replacement inside the chamber. This design simplifies the disassembly and assembly process, eliminating the need for complex tools or equipment and improving work efficiency. When the top cover is closed, the return spring helps the mounting bolts automatically align and insert into the slots on the test chamber, enabling quick and accurate installation.
[0015] By incorporating a clamping assembly, the relay is placed inside the test chamber. Rotating the adjusting plate causes the adjusting rod to move within the mounting tube via a threaded structure, thereby clamping the relay and ensuring its stability during testing. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;
[0018] Figure 3 This is a cross-sectional view of the test chamber of this utility model;
[0019] Figure 4 This is a cross-sectional view of the top cover of this utility model.
[0020] In the diagram: 1. Test chamber; 2. Base; 3. Handle; 4. Top cover; 5. Handle; 6. Mounting slot; 7. Thermometer; 8. Water inlet; 9. Vent; 10. Mounting bolt; 11. Return spring; 12. Mounting tube; 13. Adjusting rod; 14. Clamping plate; 15. Adjusting plate. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-4 This utility model provides a technical solution: a portable locomotive temperature relay testing device, including a test chamber 1:
[0023] The test chamber 1 is fitted with a top cover 4. The top cover 4 has mounting grooves 6 on both the left and right sides of the top surface. The thermometers 7 are installed inside both sets of mounting grooves 6. The test chamber 1 has mounting tubes 12 on both the front and rear sides. The clamping components are installed inside both sets of mounting tubes 12.
[0024] The test chamber 1 is equipped with bases 2 at the four corners of its lower surface, and each of the four bases 2 has a rubber anti-slip block at its lower end. The rubber anti-slip block can increase the friction between the test chamber 1 and the ground, preventing the test chamber 1 from moving or shaking due to vibration or external force during the test, thereby improving the stability and accuracy of the test. By reducing the movement and shaking of the test chamber 1, the rubber anti-slip block can effectively protect the relays and other sensitive equipment inside the test chamber 1 from damage.
[0025] Handles 3 are provided on both the left and right sides of the test chamber 1, and handles 5 are provided on the upper surface of the top cover 4. The design of handles 3 and handles 5 makes the entire test device more convenient to carry and move. Operators can easily lift or push the test chamber 1 and move it from one location to another without the need for additional handling tools or equipment. At the locomotive maintenance site, time is often very tight. The design of handles 3 and handles 5 allows operators to quickly bring the test device to the location where it needs to be tested and to quickly install and test it, thereby improving testing efficiency.
[0026] A water inlet 8 is provided on the front side of the upper surface of the top cover 4, and vent holes 9 are provided at the four corners of the upper surface of the top cover 4. The water inlet 8 allows the operator to easily inject coolant or the liquid medium required for testing into the test chamber 1 without the need for additional containers or equipment. This simplifies the preparation work before testing and improves the testing efficiency. The design of the vent holes 9 helps to expel the gas in the test chamber 1 during water injection or testing, preventing gas stagnation from affecting the normal flow and temperature distribution of the liquid. This helps to ensure the accuracy and reliability of the test results. By expelling the gas in the test chamber 1, the vent holes 9 can reduce the pressure generated by gas accumulation, thereby reducing the risk of explosion or leakage of the test chamber 1. This is crucial for ensuring the safety of the operator and the normal operation of the equipment.
[0027] The top cover 4 is equipped with mounting bolts 10 on both the left and right sides, and the upper ends of both the left and right sides of the test chamber 1 are provided with matching slots. The mounting bolts 10 allow the top cover 4 to be easily removed from the test chamber 1, making it convenient for operators to clean, maintain or replace parts inside the test chamber 1. This design simplifies the disassembly and assembly process, eliminates the need for complicated tools or equipment, and improves work efficiency. The mounting bolts 10 fit tightly with the slots on the test chamber 1, ensuring a good seal between the top cover 4 and the test chamber 1 when closed. This helps prevent dust, moisture or other impurities from entering the interior of the test chamber 1, protecting the test equipment and the relay under test from damage.
[0028] Both sets of mounting bolts 10 are fitted with return springs 11 on their outer sides, and both ends of the two sets of return springs 11 are connected to the top cover 4 and the mounting bolts 10. When the top cover 4 is closed, the elasticity of the return springs 11 can help the mounting bolts 10 automatically align and insert into the slots on the test chamber 1, achieving quick and accurate installation. The elasticity of the return springs 11 can ensure that the mounting bolts 10 and the slots on the test chamber 1 are tightly connected, preventing the top cover 4 from loosening or falling off due to vibration or external force during use.
[0029] Both clamping assemblies include an adjusting rod 13, which is inserted into the middle of the mounting tube 12 via a threaded structure. A clamping plate 14 is mounted at the rear end of the adjusting rod 13, and an adjusting plate 15 is mounted at the front end of the adjusting rod 13. The threaded structure allows the operator to precisely adjust the position of the clamping plate 14 by rotating the adjusting rod 13, thereby achieving precise clamping of the relay under test. The design of the adjusting plate 15 allows the operator to easily rotate the adjusting rod 13 without the need for additional tools or equipment.
[0030] Working principle: The relay is placed inside the test chamber 1 and then clamped by two sets of clamping components. Then the top cover 4 is closed and the top cover 4 is fixed by the fixing bolt driven by the return spring 11. Then, a suitable liquid is added into the test chamber 1 through the water inlet 8, and then the test is carried out by the thermometer 7.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A portable locomotive temperature relay testing device, characterized in that, Including test chamber (1): The test chamber (1) is fitted with a top cover (4) on its upper surface. The top cover (4) has mounting slots (6) on both the left and right sides of its upper surface. The thermometer (7) is installed inside both mounting slots (6). The test chamber (1) has mounting tubes (12) on both the front and rear sides. The clamping components are installed inside both mounting tubes (12).
2. The portable locomotive temperature relay testing device according to claim 1, characterized in that: The test chamber (1) has bases (2) at the four corners of its lower surface, and the lower ends of the four bases (2) are equipped with rubber anti-slip blocks.
3. The portable locomotive temperature relay testing device according to claim 1, characterized in that: The test chamber (1) is provided with handles (3) on both the left and right sides, and the top cover (4) is provided with a handle (5) on its upper surface.
4. The portable locomotive temperature relay testing device according to claim 1, characterized in that: The top cover (4) has a water inlet (8) on the front side of its upper surface, and exhaust holes (9) are provided at the four corners of the top cover (4).
5. The portable locomotive temperature relay testing device according to claim 1, characterized in that: The top cover (4) is movably fitted with mounting bolts (10) on both the left and right sides, and the test chamber (1) is provided with matching slots on the upper ends of both the left and right sides.
6. The portable locomotive temperature relay testing device according to claim 5, characterized in that: Both sets of mounting bolts (10) are fitted with return springs (11) on their outer sides, and both ends of the two sets of return springs (11) are connected to the top cover (4) and the mounting bolts (10).
7. The portable locomotive temperature relay testing device according to claim 1, characterized in that: Both sets of clamping assemblies include an adjusting rod (13), which is threaded... The structure is inserted in the middle of the mounting tube (12), and a clamping plate (14) is installed at the rear end of the adjusting rod (13). Furthermore, an adjustment plate (15) is installed at the front end of the adjustment rod (13).
Citation Information
Patent Citations
Portable locomotive temperature relay test device
CN105021976A