Quick release tool for lift pressure switch of motor train unit

Abstract

The utility model discloses a motor train unit lift pressure switch quick release tool, which comprises an upper force bearing plate, a lower force bearing plate and a connecting plate, the upper force bearing plate and the lower force bearing plate are connected through the connecting plate, the upper force bearing plate and the lower force bearing plate are arranged in parallel to form an integral U-shaped structure, the upper force bearing plate is provided with a matching square hole, and the lower force bearing plate is provided with a matching square hole. The matching square hole is connected with a ratchet wrench in a matched mode, an inserting bayonet is formed in the lower force bearing plate, and the inserting bayonet is arranged in a matched mode with an installation block of a lift pressure switch. The tool is small and exquisite in structure and not blocked by auxiliary accessories, when the lift pressure switch is disassembled and assembled, excessive other auxiliary accessories do not need to be disassembled, the rapid disassembling and assembling effect is achieved, the problems that an original motor train unit lift pressure switch is not standard in disassembling and assembling and low in efficiency are solved, the disassembling and assembling specialty and the working efficiency of the lift pressure switch are improved, and the working efficiency is improved. And one-time success of field fault processing is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of EMU maintenance technology, specifically to a quick-release tooling for EMU head pressure switch. Background Technology

[0002] The head pressure switch is a crucial testing device in the high-speed train's water supply system. Its performance directly affects water quality, passenger experience, and may even lead to water shortages in electric kettles, toilets, and handwashing sinks. Common troubleshooting methods for head pressure switch malfunctions include opening the skirt panel, removing the clamps, disassembling the pressure buffer tank, and removing the pressure buffer tank support.

[0003] The existing troubleshooting methods have several problems. First, replacing the head pressure switch requires disassembling a lot of auxiliary parts and takes a relatively long time, which affects the efficiency of troubleshooting. Second, the replacement work space is small. The original adjustable wrench can only rotate about 5° each time when turning the head pressure switch due to space limitations, which makes the operation extremely inconvenient.

[0004] In view of the above-mentioned defects, the creator of this utility model has finally obtained this utility model after a long period of research and practice. Utility Model Content

[0005] To address the aforementioned technical deficiencies, the present invention provides a quick-release fixture for a high-speed train head pressure switch, comprising an upper support plate, a lower support plate, and a connecting plate. The upper and lower support plates are connected via the connecting plate and are arranged in parallel to form an integral U-shaped structure. The upper support plate has a mating square hole that engages with a ratchet wrench. The lower support plate has a insertion slot that engages with the mounting block of the head pressure switch.

[0006] Preferably, the upper support plate includes an upper mating section and an upper connecting section. The upper mating section is a circular plate, and the mating square hole is located at the center of the upper mating section. The upper mating section is connected to the connecting plate through the upper connecting section. The lower support plate includes a lower mating section and a lower connecting section. The lower mating section is a circular plate, and the insertion slot is located on the side of the lower mating section away from the connecting plate. The lower mating section is connected to the connecting plate through the lower connecting section.

[0007] Preferably, the insertion slot includes an insertion hole and a groove, the insertion hole is a regular hexagonal hole, and the groove extends from the insertion hole in a direction away from the connecting plate, and the insertion hole and the mating square hole are coaxially arranged.

[0008] Preferably, the upper support plate, the lower support plate, and the connecting plate are integrally formed by bending.

[0009] Preferably, the upper connecting section is configured as an L-shaped plate, with one end connected to the upper mating section and the other end parallel to and fitted to the connecting plate. A connecting stud is fixedly provided at the end of the connecting plate, and a connecting hole is provided on the upper connecting section corresponding to the connecting stud. The connecting stud is disposed in the connecting hole, and a locking nut is threaded onto the connecting stud. The connecting hole is disposed between the locking nut and the connecting plate, and the detachable connection between the upper bearing plate and the connecting plate is achieved by locking the locking nut.

[0010] Preferably, the connecting hole is configured as an elongated hole, and the extending direction of the connecting hole is consistent with the extending direction of the connecting hole.

[0011] Preferably, there are two connecting studs, and the connecting studs and the connecting holes are arranged in a one-to-one correspondence.

[0012] Preferably, a washer is provided between the locking nut and the upper connecting section, and the washer is sleeved on the connecting stud.

[0013] Compared with the prior art, the advantages of this utility model are as follows: This utility model has a compact structure and is not obstructed by auxiliary accessories. When disassembling and assembling the head pressure switch, there is no need to disassemble too many other auxiliary accessories, achieving the effect of quick disassembly and assembly. It not only solves the problems of non-standard disassembly and assembly and low efficiency of the original EMU head pressure switch, but also improves the professionalism and work efficiency of head pressure switch disassembly and assembly, effectively improving the success rate of on-site fault handling. Attached Figure Description

[0014] Figure 1 A schematic diagram showing the usage status of the quick-release fixture for the head pressure switch of the EMU;

[0015] Figure 2 This is a cross-sectional view of the connection structure of the quick-release fixture for the head pressure switch of the EMU.

[0016] Figure 3 This is a structural view of Embodiment 1 of the quick-release tooling for the head pressure switch of the EMU;

[0017] Figure 4 This is a front view of the structure of Embodiment 2 of the quick-release tooling for the head pressure switch of the EMU;

[0018] Figure 5 This is a structural side view of Embodiment 2 of the quick-release tooling for the head pressure switch of the EMU.

[0019] The numbers in the image represent:

[0020] 1-Quick-release tooling for EMU head pressure switch; 2-Ratchet wrench; 3-EMU head pressure switch; 11-Upper support plate; 12-Lower support plate; 13-Connecting plate; 14-Matching square hole; 15-Plug-in bayonet; 111-Upper mating section; 112-Upper connecting section; 113-Connecting hole; 121-Lower mating section; 122-Lower connecting section; 131-Connecting stud; 132-Locking nut; 133-Washer. Detailed Implementation

[0021] The above-mentioned and other technical features and advantages of this utility model will be described in more detail below with reference to the accompanying drawings.

[0022] Example 1

[0023] like Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram showing the usage status of the quick-release fixture for the head pressure switch of the high-speed train. Figure 2 This is a cross-sectional view of the connection structure of the quick-release fixture for the EMU head pressure switch. The ratchet wrench 2 disassembles the EMU head pressure switch 3 using the quick-release fixture 1.

[0024] like Figure 3 As shown, Figure 3 This is a structural view of a first embodiment of the quick-release fixture for the head pressure switch of the high-speed train. The quick-release fixture for the head pressure switch of the high-speed train of this utility model includes an upper support plate 11, a lower support plate 12, and a connecting plate 13. The upper support plate 11 and the lower support plate 12 are connected by the connecting plate 13. The upper support plate 11 and the lower support plate 12 are arranged in parallel to form an integral U-shaped structure. The upper support plate 11 is provided with a mating square hole 14, which is connected to a ratchet wrench. The lower support plate 12 is provided with a insertion bayonet 15, which is configured to mate with the head pressure switch mounting block.

[0025] When installing or removing the head pressure switch, the head pressure switch is positioned between the upper support plate 11 and the lower support plate 12. The insertion slot 15 engages with the mounting block at the bottom of the head pressure switch. The top of the head pressure switch has a certain space for installation and removal. By positioning the upper support plate 11 above the top of the head pressure switch, it is convenient to install the universal tool ratchet wrench with the mating square hole 14 and to perform the tightening operation on the mounting block.

[0026] Preferably, the upper support plate 11, the lower support plate 12 and the connecting plate 13 are integrally formed by bending, thereby ensuring the overall structural strength stability of the present invention and facilitating the transmission of force during torsion.

[0027] The upper support plate 11 includes an upper mating section 111 and an upper connecting section 112. The upper mating section 111 is a circular plate, and the mating square hole 14 is located at the center of the upper mating section 111. The upper mating section 111 is connected to the connecting plate 13 through the upper connecting section 112. The lower support plate 12 includes a lower mating section 121 and a lower connecting section 122. The lower mating section 121 is a circular plate, and the insertion slot 15 is located on the side of the lower mating section 121 away from the connecting plate 13. The lower mating section 121 is connected to the connecting plate 13 through the lower connecting section 122. By setting the upper mating section 111 and the lower mating section 121 to have a circular plate structure, the sharp corners are prevented from scratching people or other objects during rotation, thus improving safety during use.

[0028] The insertion slot 15 includes an insertion hole and a groove. The insertion hole is a regular hexagonal hole, and the groove extends from the insertion hole in a direction away from the connecting plate 13. The insertion hole and the mating square hole 14 are coaxially arranged to ensure the stability of torsional force application.

[0029] In a specific embodiment, this utility model uses 45# steel plate, which is laser-cut and then bent into a horizontal U-shape. After bending, its total height is 77mm and its wall thickness is 3.5mm. The upper support plate 11 is provided with an upper mating section 111 with a radius of 14mm. The center distance of the upper mating section 111 from the connecting plate 1330.5mm is 1330.5mm. The mating square hole 14 is set as a 10mm x 10mm square hole. The lower support plate 12 is provided with a lower mating section 121 with a radius of 19.5mm. The length of the opposite side of the insertion hole is 23mm. The remaining four sides of the insertion hole are ultimately presented as an insertion bayonet 15, which is similar to an open wrench, through the slot. The meshing surface of the insertion bayonet 15 can be matched with the bottom mounting block of the head pressure switch to be disassembled. The ratchet wrench is a general-purpose tool with a 3 / 8 (9.5 mm) square head that matches the mating square hole 14; the mounting block at the bottom of the head pressure switch is a hexagonal nut, which is the point of force for disassembling the tool.

[0030] In this invention, the ratchet wrench, after assembly, forms a mounting component that precisely locks the mounting block of the head pressure switch body. By adjusting the clockwise or counterclockwise direction of the ratchet wrench, the head pressure switch can be disassembled or assembled.

[0031] This utility model has a compact structure and is not obstructed by auxiliary accessories. When disassembling and assembling the head pressure switch, there is no need to disassemble too many other auxiliary accessories, achieving a quick disassembly and assembly effect. It not only solves the problems of non-standard disassembly and assembly and low efficiency of the original EMU head pressure switch, but also improves the professionalism and work efficiency of head pressure switch disassembly and assembly, effectively increasing the success rate of on-site fault handling.

[0032] Example 2

[0033] like Figure 4 and Figure 5 As shown, Figure 4 This is a front view of the structure of Embodiment 2 of the quick-release tooling for the head pressure switch of the EMU; Figure 5 This is a structural side view of Embodiment 2 of the quick-release tooling for the head pressure switch of the EMU.

[0034] In this embodiment, the upper support plate 11, the lower support plate 12, and the connecting plate 13 are not integral structures. The upper support plate 11 includes an upper mating section 111 and an upper connecting section 112. The upper mating section 111 is a circular plate, and the mating square hole 14 is located at the center of the upper mating section 111. The upper mating section 111 is connected to the connecting plate 13 through the upper connecting section 112. The lower support plate 12 includes a lower mating section 121 and a lower connecting section 122. The lower mating section 121 is a circular plate, and the insertion slot 15 is located on the side of the lower mating section 121 away from the connecting plate 13. The lower mating section 121 is connected to the connecting plate 13 through the lower connecting section 122. By setting the upper mating section 111 and the lower mating section 121 to have circular plate structures, the sharp corners are prevented from scratching people or other objects during rotation, thus improving safety.

[0035] The upper connecting section 112 is configured as an L-shaped plate. One end of the upper connecting section 112 is connected to the upper mating section 111, and the other end is parallel and fitted to the connecting plate 13. A connecting stud 131 is fixedly provided at the end of the connecting plate 13. The upper connecting section 112 is provided with a connecting hole 113 corresponding to the connecting stud 131. The connecting stud 131 is disposed in the connecting hole 113, and a locking nut 132 is threadedly connected to the connecting stud 131. The connecting hole 113 is disposed between the locking nut 132 and the connecting plate 13. The detachable connection between the upper bearing plate 11 and the connecting plate 13 is achieved by locking the locking nut 132. The detachable connection between the upper bearing plate 11 and the connecting plate 13 allows the length of the connecting plate 13 to be changed according to actual conditions, thereby facilitating the installation and removal of pressure switches of different sizes. At the same time, placing the locking nut 132 on the side close to the mating square hole 14 also avoids interference and scratching of external objects by the protruding locking nut 132 and the connecting stud 131 when tightening.

[0036] Preferably, the connecting hole 113 is configured as an elongated hole, and the extension direction of the connecting hole 113 is consistent with the extension direction of the connecting hole 113. The distance between the upper support plate 11 and the lower support plate 12 can be adjusted by adjusting the connecting stud 131 along the straight line of the elongated hole, thereby improving applicability.

[0037] Generally, there are two connecting studs 131, and the connecting studs 131 and the connecting holes 113 are arranged in a one-to-one correspondence, thereby ensuring the stability of the upper support plate 11 and the connecting plate 13 after connection.

[0038] Preferably, a washer 133 is provided between the locking nut 132 and the upper connecting section 112, and the washer 133 is sleeved on the connecting stud 131 to improve the locking effect of the locking nut 132 on the connecting stud 131.

[0039] The above description is merely a preferred embodiment of the present utility model and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present utility model, all of which will fall within the protection scope of the present utility model.

Claims

1. A quick-release tooling for a head pressure switch on a high-speed train, characterized in that, It includes an upper support plate, a lower support plate, and a connecting plate. The upper support plate and the lower support plate are connected by the connecting plate. The upper support plate and the lower support plate are arranged in parallel to form an integral U-shaped structure. The upper support plate is provided with a mating square hole, which is connected to a ratchet wrench. The lower support plate is provided with a plug-in bayonet, which is configured to mate with the mounting block of a head pressure switch.

2. The quick-release fixture for the EMU head pressure switch as described in claim 1, characterized in that, The upper support plate includes an upper mating section and an upper connecting section. The upper mating section is a circular plate, and the mating square hole is located at the center of the upper mating section. The upper mating section is connected to the connecting plate through the upper connecting section. The lower support plate includes a lower mating section and a lower connecting section. The lower mating section is a circular plate, and the insertion slot is located on the side of the lower mating section away from the connecting plate. The lower mating section is connected to the connecting plate through the lower connecting section.

3. The quick-release fixture for the EMU head pressure switch as described in claim 2, characterized in that, The insertion slot includes an insertion hole and a groove. The insertion hole is a regular hexagonal hole, and the groove extends from the insertion hole in a direction away from the connecting plate. The insertion hole and the mating square hole are coaxially arranged.

4. The quick-release fixture for the EMU head pressure switch as described in claim 3, characterized in that, The upper support plate, the lower support plate, and the connecting plate are integrally formed by bending.

5. The quick-release fixture for the EMU head pressure switch as described in claim 3, characterized in that, The upper connecting section is configured as an L-shaped plate. One end of the upper connecting section is connected to the upper mating section, and the other end is parallel and fitted to the connecting plate. A connecting stud is fixedly provided at the end of the connecting plate. The upper connecting section is provided with a connecting hole corresponding to the connecting stud. The connecting stud is disposed in the connecting hole, and a locking nut is threaded onto the connecting stud. The connecting hole is disposed between the locking nut and the connecting plate. The detachable connection between the upper bearing plate and the connecting plate is achieved by locking the locking nut.

6. The quick-release fixture for the EMU head pressure switch as described in claim 5, characterized in that, The connecting hole is configured as an elongated hole, and the extension direction of the connecting hole is consistent with the extension direction of the connecting hole.

7. The quick-release fixture for the EMU head pressure switch as described in claim 6, characterized in that, There are two connecting studs, and each connecting stud corresponds to a connecting hole.

8. The quick-release fixture for the EMU head pressure switch as described in claim 5, characterized in that, A washer is provided between the locking nut and the upper connecting section, and the washer is sleeved on the connecting stud.

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