A fixing device for a high-pressure water pump packing water leakage sensor of a hydropower station

Abstract

The application discloses a fixing device for a high-pressure water pump packing water leakage sensor of a hydropower station, which comprises a supporting assembly, a supporting rod arranged on a supporting base, an adjusting assembly, an adjusting block provided with a through adjusting groove, the supporting rod penetrating through the adjusting groove, a connecting plate arranged on the side of the adjusting block, a fixing assembly, a fixing base connected with the connecting plate, and a mounting assembly, a mounting base detachably connected with the fixing base, and a sensor fixedly connected with the mounting base. The application simplifies the height adjustment, installation, maintenance and dismounting process of the conventional water immersion sensor, and makes the adjustment of the sensor more convenient and fast.

Description

Technical Field

[0001] This invention relates to the field of sensor mounting, and in particular to a mounting device for a leakage sensor in the packing of a high-pressure water pump in a hydropower station. Background Technology

[0002] High-pressure water pumps in hydropower stations primarily supply water for cooling the turbine guide bearings. Excessive guide bearing temperature can lead to bearing failure and subsequent abnormal shutdowns. A moderate amount of leakage can effectively reduce the heat generated by friction between the pump shaft and packing during rotation, thus extending the packing's lifespan. However, excessive leakage reduces pump efficiency and impacts output. Currently, hydropower stations lack specific monitoring methods for packing leakage, relying mainly on manual inspections. In unmanned or poorly staffed hydropower stations, leakage is often detected only when large areas are already flooded. This makes it impossible to monitor the pump's operation and may cause malfunctions in surrounding electrical equipment. Existing sensor monitoring technologies rely on fixed sensor installation positions, making it difficult to adjust the installation height based on sensor accuracy and water volume. Furthermore, sensor installation and removal are cumbersome. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of the embodiments of the present invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this section, the abstract and title of the invention. Such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] In view of the problems existing in the above and / or prior art, the present invention is proposed.

[0005] Therefore, the technical problem to be solved by the present invention is that when using sensors for monitoring in the prior art, the installation position of the sensors is relatively fixed, making it difficult to adjust the installation height according to the sensor accuracy and water volume, and the installation and disassembly of the sensors are relatively cumbersome.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a fixing device for a packing leakage sensor of a high-pressure water pump in a hydropower station, comprising a support assembly, including a support base and a support rod disposed on the support base;

[0007] An adjustment assembly includes an adjustment block, the adjustment block having a through adjustment groove, a support rod passing through the adjustment groove, and a connecting plate on the side of the adjustment block;

[0008] The fixing assembly includes a fixing seat connected to the connecting plate;

[0009] Mounting components, including a mounting base that is detachably connected to a fixed base.

[0010] As a preferred embodiment of the fixing device for the packing leakage sensor of the high-pressure water pump in the hydropower station described in this invention, the sensor is fixedly connected to the mounting base.

[0011] As a preferred embodiment of the fixing device for the packing leakage sensor of the high-pressure water pump in the hydropower station described in this invention, the support rod is provided with a guide groove along its length, and a plurality of triangular protrusions are provided in the guide groove, the plurality of triangular protrusions forming a ratchet bar.

[0012] As a preferred embodiment of the fixing device for the packing leakage sensor of the high-pressure water pump in the hydropower station according to the present invention, wherein: an adjusting column is provided on the side of the adjusting block, and the adjusting column is provided with a square groove that extends through the adjusting groove, the width of the square groove being the same as the width of the guide groove.

[0013] As a preferred embodiment of the fixing device for the packing leakage sensor of the high-pressure water pump in the hydropower station described in this invention, a fixing block is provided in the square groove, and one end of the fixing block is in contact with the triangular protrusion.

[0014] As a preferred embodiment of the fixing device for the packing leakage sensor of the high-pressure water pump in the hydropower station described in this invention, a finger hole is provided at the end of the fixing block away from the triangular protrusion.

[0015] As a preferred embodiment of the fixing device for the packing leakage sensor of the high-pressure water pump in the hydropower station described in this invention, the square groove is provided with a cylindrical groove, the outline of the cylindrical groove is larger than the outline of the square groove, the fixing block is provided with a limiting plate, the limiting plate is located in the cylindrical groove, and an elastic element is provided between the limiting plate and the end face of the cylindrical groove away from the triangular protrusion.

[0016] As a preferred embodiment of the fixing device for the packing leakage sensor of the high-pressure water pump in the hydropower station described in this invention, the end of the fixing block that contacts the triangular protrusion is wedge-shaped and can be embedded in the tooth groove of the ratchet bar.

[0017] As a preferred embodiment of the fixing device for the packing leakage sensor of the high-pressure water pump in the hydropower station described in this invention, the fixing base is provided with a fixing hole, a movable disk is provided in the fixing hole, a connecting column is provided at one end of the mounting base, a slot is provided at the connection between the connecting column and the mounting base, the diameter of the connecting column is smaller than the diameter of the mounting base, and the outer diameter of the slot is smaller than the diameter of the connecting column; the diameter of the mounting base is the same as the diameter of the fixing hole.

[0018] A groove is provided inside the fixing hole, and a hinge hole is provided at one end of the groove near the opening of the fixing hole. A rotating block is provided inside the groove, and a hinge pin is provided at one end of the rotating block that is embedded in the hinge hole. The end of the rotating block with the hinge pin is semi-circular and tangent to the end face of the groove.

[0019] The fixed base is provided with an annular groove, and a movable ring is provided in the annular groove. The annular groove and the groove are connected. A rack is provided on the inner side of the movable ring. A gear is provided at one end of the rotating block with a hinge post. The rack meshes with the gear. A first spring is provided between the movable ring and the end face of the annular groove near the opening of the fixed hole.

[0020] As a preferred embodiment of the fixing device for the packing leakage sensor of the high-pressure water pump of the hydropower station described in the present invention, wherein: a radial sliding groove is provided in the fixing seat, the sliding groove and the annular groove are connected, a locking pin is provided in the sliding groove, and a second spring is provided between the locking pin and the end of the sliding groove near the center of the fixing seat.

[0021] The inner side of the fixing hole is also provided with an annular deep groove. The movable disk is connected to a rotating disk. The rotating disk is located in the annular deep groove. The side of the annular deep groove is provided with a spiral groove. The side of the rotating disk is provided with a frustum. The frustum is embedded in the spiral groove.

[0022] A through-slot is provided between the annular deep groove and the sliding groove; the locking pin is provided with a transmission pin, which passes through the long groove and extends into the annular deep groove; the rotating disk is provided with a through-slot triangular groove, through which the transmission pin passes.

[0023] The beneficial effects of this invention are that it simplifies the height adjustment, installation, maintenance, and disassembly process of traditional immersion sensors, making sensor adjustment more convenient and faster. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0025] Figure 1 A schematic diagram of a fixing device for a high-pressure water pump packing leakage sensor in a hydropower station, provided as an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of the sensor installation in the fixing device of the packing leakage sensor of the high-pressure water pump in a hydropower station according to an embodiment of the present invention;

[0027] Figure 3 A schematic diagram of the structure of the support component and adjustment component when the fixing device of the packing leakage sensor of the high-pressure water pump in a hydropower station is fixed according to an embodiment of the present invention.

[0028] Figure 4A schematic diagram of the structure of the fixing device for the packing leakage sensor of a high-pressure water pump in a hydropower station during movement, according to an embodiment of the present invention.

[0029] Figure 5 An exploded structural diagram of the fixing components and mounting components in the fixing device of the packing leakage sensor of the high-pressure water pump in a hydropower station according to an embodiment of the present invention.

[0030] Figure 6 A schematic diagram of the structure of the fixing component and the installation component when connected in the fixing device of the packing leakage sensor of the high-pressure water pump of the hydropower station according to an embodiment of the present invention;

[0031] Figure 7 A schematic diagram of the structure of the fixing component and the installation component connected in the fixing device of the packing leakage sensor of the high-pressure water pump of the hydropower station according to an embodiment of the present invention;

[0032] Figure 8 A schematic diagram of the structure of the fixing component and the mounting component of the fixing device for the packing leakage sensor of the high-pressure water pump in a hydropower station according to an embodiment of the present invention, when separated;

[0033] Figure 9 In one embodiment of the present invention, a fixing device for a high-pressure water pump packing leakage sensor in a hydropower station is provided. Figure 8 A cross-sectional view of the plane containing the rotating disk. Detailed Implementation

[0034] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the present invention will be described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure will be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0037] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0038] Example 1

[0039] Reference Figures 1-4 This embodiment provides a fixing device for a high-pressure water pump packing leakage sensor in a hydropower station, including a support assembly 100, an adjustment assembly 200, a fixing assembly 300, and an installation assembly 400. The support assembly 100 includes a support base 101 and a support rod 102 mounted on the support base 101. The support base 101 is fixed to the ground, and the support rod 102 is perpendicular to the support base 101 and connected by welding. The adjustment assembly 200 includes an adjustment block 201 with a through adjustment groove 201a through which the support rod 102 passes. In this embodiment, both the adjustment groove 201a and the support rod 102 have rectangular cross-sections and are slidably fitted. A connecting plate 201b is provided on the side of the adjustment block 201. The fixing assembly 300 includes a fixing seat 301 connected to the connecting plate 201b. The installation assembly 400 includes an installation seat 401 detachably connected to the fixing seat 301. The sensor is fixedly connected to the mounting base 401 by screws, and the connecting plate 201b is also fixedly connected to the mounting base 301 by screws.

[0040] In this embodiment, the sensor is a water immersion sensor.

[0041] Furthermore, the support rod 102 is provided with a guide groove 102a along its length, and a plurality of triangular protrusions 102b are provided in the guide groove 102a, forming a ratchet. The triangular protrusions 102b are right-angled triangular protrusions. An adjustment post 201c is provided on the side of the adjustment block 201, and the adjustment post 201c is provided with a square groove 201d that extends through the adjustment groove 201a. The width of the square groove 201d is the same as the width of the guide groove 102a.

[0042] A fixing block 202 is provided in the square groove 201d, and one end of the fixing block 202 contacts the triangular protrusion 102b. The fixing block 202 can move within the square groove 201d. When one end of the fixing block 202 is inserted into the toothed groove between the triangular protrusions 102b, it restricts the movement of the adjusting block 201 towards the support base 101, that is, it restricts its fall. When one end of the fixing block 202 is retracted into the square groove 201d, the height of the adjusting block 201 can be adjusted.

[0043] Preferably, the end of the fixing block 202 away from the triangular protrusion 102b is provided with a finger hole 202a, so that the position of the fixing block 202 can be operated by a finger.

[0044] Furthermore, a cylindrical groove 201e is provided within the square groove 201d, the outline of which is larger than that of the square groove 201d. A limiting plate 202b is provided on the fixing block 202, located within the cylindrical groove 201e. An elastic element 203 is provided between the limiting plate 202b and the end face of the cylindrical groove 201e furthest from the triangular protrusion 102b. The elastic element 203 is a compression spring; therefore, under the action of the spring, one end of the fixing block 202 is embedded in the toothed groove formed by the triangular protrusion 102b. When it is necessary to adjust the adjusting block 201, the adjusting block 201 can be moved up and down by pulling the fixing block 202 through the finger hole 202a.

[0045] Preferably, the end of the fixing block 202 that contacts the triangular protrusion 102b is wedge-shaped and can be embedded in the tooth groove of the ratchet bar.

[0046] In this embodiment, the support component 100 is installed at the leak point within the hydropower station. The height of the regulating block 201 is adjusted according to the accuracy of the water immersion sensor and the leakage volume. The pump's operating status is then determined by monitoring the leakage volume of the packing. Upon detecting a leak, a signal is transmitted to the leak controller. The controller, on one hand, sends a switch input to the pump control panel PLC controller (a 3-5 second delay is added to the PLC program to avoid false alarms), and then communicates with the host computer to display and remind remote monitoring personnel to verify the on-site pump operation. On the other hand, the leak controller's built-in audible and visual alarm can alert patrol personnel that the pump may have a packing leak. The specific monitoring process is existing technology and will not be described in detail.

[0047] Example 2

[0048] Reference Figures 1-9 This is the second embodiment of the present invention, which is based on the previous embodiment and differs from the previous embodiment in that:

[0049] The fixed base 301 is provided with a fixed hole 301a, and a movable disk 303 is provided in the fixed hole 301a. The movable disk 303 can move inside the fixed hole 301a. The mounting base 401 is cylindrical, and a connecting post 401a is provided at one end of the mounting base 401. A slot 401b is provided at the connection between the connecting post 401a and the mounting base 401.

[0050] When in use, insert one end of the mounting base 401 with the connecting post 401a into the fixing hole 301a.

[0051] Among them, the diameter of the connecting post 401a is smaller than the diameter of the mounting base 401, and the outer diameter of the slot 401b is smaller than the diameter of the connecting post 401a; the diameter of the mounting base 401 is the same as the diameter of the fixing hole 301a; that is, when the mounting base 401 is inserted into the fixing hole 301a, it will not swing.

[0052] Furthermore, a groove 301b is provided inside the fixing hole 301a. A hinge hole 301c is provided at one end of the groove 301b near the opening of the fixing hole 301a. A rotating block 302 is provided inside the groove 301b. A hinge post is provided at one end of the rotating block 302 and embedded in the hinge hole 301c. The rotating block 302 can rotate around the hinge hole 301c as the center. The end of the rotating block 302 with the hinge post is semi-circular and tangent to the end face of the groove 301b. Therefore, the rotation range of the rotating block 302 is 0~90°. When the rotation angle of the rotating block 302 is 0°, the rotating block 302 is perpendicular to the axis of the fixing hole 301a. When the rotation angle of the rotating block 302 is 90°, the rotating block 302 is parallel to the axis of the fixing hole 301a.

[0053] Furthermore, an annular groove 301d is provided within the fixed base 301, and a movable ring 304 is provided within the annular groove 301d, which can move axially within the annular groove 301d. The annular groove 301d and the groove 301b pass through each other. A rack 304a is provided on the inner side of the movable ring 304. A gear 302a is provided at one end of the rotating block 302 with a hinge post. The rack 304a meshes with the gear 302a. A first spring 305 is provided between the movable ring 304 and the end face of the annular groove 301d near the opening of the fixed hole 301a. The first spring 305 is a compression spring. That is, in the initial state, the first spring 305 pushes the movable ring 304, and the rotation angle of the rotating block 302 is 0°. When the rotating block 302 is rotated, the gear 302a on the rotating block 302 drives the rack 304a, which is converted into linear motion of the movable ring 304, compressing the first spring 305.

[0054] Therefore, when the connecting post 401a is inserted into the fixing hole 301a, during this process, the connecting post 401a pushes the rotating block 302 to rotate. Because the diameter of the connecting post 401a is smaller than the inner diameter of the fixing hole 301a, the rotation angle is less than 90°. When the connecting post 401a passes the rotating block 302, the rotating block 302 is reset to 0° under the action of the first spring 305, and at this time it is embedded in the slot 401b. At this time, the fixing seat completes the connection of the wire.

[0055] Furthermore, a radially extending groove 301e is provided within the fixed base 301. The groove 301e is located on the side away from the first spring 305 and penetrates the annular groove 301d. A locking pin 306 is provided within the groove 301e, and the locking pin 306 can slide within the groove 301e. A second spring 306a is provided between the locking pin 306 and the end of the groove 301e near the center of the fixed base 301. The second spring 306a is a compression spring, which pushes the locking pin 306, causing it to tend to move into the annular groove 301d.

[0056] It should be noted that during connection, when the connecting post 401a is inserted into the fixing hole 301a, the connecting post 401a pushes the rotating block 302 to rotate. Because the diameter of the connecting post 401a is smaller than the inner diameter of the fixing hole 301a, the rotation angle is less than 90°. At this time, the moving distance of the moving ring 304 is L1. At this time, the opening of the slide groove 301e is still blocked by the moving ring 304, and the locking pin 306 is located in the slide groove 301e. When the mounting base 401 is inserted into the fixing hole 301a, the mounting base 401 body will push the rotating block 302 to a position rotated by 90°, that is, a position parallel to the axis of the fixing hole 301a. At this time, the moving distance of the moving ring 304 is L2. Therefore, L2 > L1. At this time, the moving ring 304 completely crosses the slide groove 301e, the locking pin 306 is no longer restricted and pops out into the annular groove 301d, restricting the reset of the moving ring 304. At this time, the mounting base 401 can be removed.

[0057] Furthermore, an annular deep groove 301f is provided on the inner side of the fixing hole 301a. The inner diameter of the annular deep groove 301f is larger than the inner diameter of the fixing hole 301a. The movable disk 303 is connected to the rotating disk 303a, which is integrally formed with the movable disk 303. The rotating disk 303a is located in the annular deep groove 301f. A spiral groove 301g is provided on the side of the annular deep groove 301f, extending along a spiral line. A frustum 303b is provided on the side of the rotating disk 303a, which is embedded in the spiral groove 301g. Therefore, when the movable disk 303 moves axially, under the action of the frustum 303b and the spiral groove 301g, the movable disk 303 will move spirally, that is, in addition to moving axially, it will also rotate around the axis.

[0058] A through groove 301h is provided between the annular deep groove 301f and the sliding groove 301e. The through groove 301h extends radially, and the locking pin 306 is provided with a drive pin 306b, which passes through the through groove 301h and extends into the annular deep groove 301f. The rotating disk 303a is provided with a through triangular groove 303c, which is not a regular triangle but a near-triangular shape. The drive pin 306b passes through the triangular groove 303c.

[0059] Preferably, the rotating end of the rotating block 302 is wedge-shaped.

[0060] Specifically, the triangular groove 303c consists of a first side, a second side, and a third side. The first side, the second side, and the third side are connected by an arc surface. The first side is an arc surface coaxial with the rotating disk 303a. That is, when the rotating disk 303a rotates and the transmission pin 306b is in contact with the first side, the transmission pin 306b is stationary. The second side is along the radial direction of the rotating disk 303a. The third side connects the two ends of the first side and the second side, that is, the third side is inclined.

[0061] Furthermore, a third spring 307 is provided between the movable disk 303 and the bottom of the fixing hole 301a. The third spring 307 is a compression spring, and its elastic force has a tendency to push the movable disk 303 towards the mounting base 401.

[0062] In this embodiment, in the initial state, the third spring 307 is in its longest state. At this time, the frustum 303b is at one end of the spiral groove 301g, and the transmission pin 306b is at the connection between the first and third sides, that is, the locking pin 306 is retracted in the slide groove 301e. When the operating mounting base 401 is inserted into the fixing hole 301a, the connecting column 401a pushes the moving disk 303 to move. Under the action of the spiral groove 301g, the rotating disk 303a will rotate. At this time, the rotation direction of the rotating disk 303a should be: the rotating disk 303a and the... The relative movement of the transmission pin 306b is that the transmission pin 306b moves along the second side, that is, the transmission pin 306b itself is still stationary because the moving distance of the moving ring 304 is L1. At this time, the opening of the slide groove 301e is still blocked by the moving ring 304, the locking pin 306 is located in the slide groove 301e, and the rotating block 302 is reset to 0° under the action of the first spring 305, and is embedded in the locking groove 401b. At this time, the fixed seat completes the connection of the wire, but at this time the frustum 303b has not yet moved to the other end of the spiral groove 301g. When it is necessary to separate the mounting assembly 400, the operating mounting base 401 continues to move into the fixing hole 301a. The mounting base 401 then pushes the rotating block 302 to a position rotated 90°, i.e., parallel to the axis of the fixing hole 301a. At this time, the moving ring 304 moves a distance of L2, therefore L2 > L1. At this time, the moving ring 304 completely passes through the slide groove 301e, and the locking pin 306 is no longer restricted and pops out into the annular groove 301d along the second side. The transmission pin 306b is located at the connection between the second and third sides, restricting the moving ring 304. 04 is reset. At this time, the mounting base 401 can be removed. During the removal of the mounting base 401, the moving disk 303 is also reset under the action of the third spring 307, that is, it moves along the spiral line. That is, during the rotation of the rotating disk 303a, the transmission pin 306b moves along the third side towards the center of the rotating disk 303a, that is, the locking pin 306 retracts into the slide groove 301e. At this time, the moving ring 304 is no longer restricted by the locking pin 306 and is reset under the action of the first spring 305. At the same time, it drives the rotating block 302 to reset to the initial position.

[0063] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0064] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0065] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A fixing device for a high-pressure water pump packing leakage sensor in a hydropower station, characterized in that: include, The support assembly (100) includes a support base (101) and a support rod (102) disposed on the support base (101). The adjustment assembly (200) includes an adjustment block (201), the adjustment block (201) is provided with a through adjustment groove (201a), the support rod (102) passes through the adjustment groove (201a), and a connecting plate (201b) is provided on the side of the adjustment block (201). The fixing assembly (300) includes a fixing base (301) connected to the connecting plate (201b); Mounting assembly (400) includes mounting base (401) which is detachably connected to mounting base (301); The fixing base (301) is provided with a fixing hole (301a), and a movable disk (303) is provided in the fixing hole (301a). One end of the mounting base (401) is provided with a connecting post (401a). A slot (401b) is provided at the connection between the connecting post (401a) and the mounting base (401). The diameter of the connecting post (401a) is smaller than the diameter of the mounting base (401), and the outer diameter of the slot (401b) is smaller than the diameter of the connecting post (401a). The diameter of the mounting base (401) is the same as the diameter of the fixing hole (301a). A groove (301b) is provided inside the fixing hole (301a). A hinge hole (301c) is provided at one end of the groove (301b) near the opening of the fixing hole (301a). A rotating block (302) is provided inside the groove (301b). A hinge post is provided at one end of the rotating block (302) and embedded in the hinge hole (301c). The end of the rotating block (302) with the hinge post is semi-circular and tangent to the end face of the groove (301b). The fixed base (301) has an annular groove (301d) inside, and a movable ring (304) is provided inside the annular groove (301d). The annular groove (301d) and the groove (301b) are connected through each other. A rack (304a) is provided inside the movable ring (304). A gear (302a) is provided at one end of the rotating block (302) with a hinge post. The rack (304a) meshes with the gear (302a). The movable ring (304) and the annular groove (301b) are connected through the groove (301d). A first spring (305) is provided between the end face of the groove (301d) and the opening of the fixing hole (301a). A radial sliding groove (301e) is provided in the fixing seat (301), and the sliding groove (301e) and the annular groove (301d) pass through each other. A locking pin (306) is provided in the sliding groove (301e), and a second spring (306a) is provided between the locking pin (306) and the end of the sliding groove (301e) near the center of the fixing seat (301). The inner side of the fixing hole (301a) is also provided with an annular deep groove (301f). The movable disk (303) is connected to a rotating disk (303a). The rotating disk (303a) is located in the annular deep groove (301f). The side of the annular deep groove (301f) is provided with a spiral groove (301g). The side of the rotating disk (303a) is provided with a frustum (303b). The frustum (303b) is embedded in the spiral groove (301g). A through groove (301h) is provided between the annular deep groove (301f) and the sliding groove (301e). The locking pin (306) is provided with a transmission pin (306b), which passes through the long groove (301h) and extends into the annular deep groove (301f). The rotating disk (303a) is provided with a through triangular groove (303c), through which the transmission pin (306b) passes.

2. The fixing device for the packing leakage sensor of the high-pressure water pump in a hydropower station according to claim 1, characterized in that: The sensor is fixedly connected to the mounting base (401).

3. The fixing device for the packing leakage sensor of the high-pressure water pump in a hydropower station according to claim 2, characterized in that: The support rod (102) is provided with a guide groove (102a) along its length, and a plurality of triangular protrusions (102b) are provided in the guide groove (102a), which form a ratchet bar.

4. The fixing device for the packing leakage sensor of the high-pressure water pump in a hydropower station according to claim 3, characterized in that: The adjusting block (201) has an adjusting column (201c) on its side. The adjusting column (201c) has a square groove (201d) that extends through the adjusting groove (201a). The width of the square groove (201d) is the same as the width of the guide groove (102a).

5. The fixing device for the packing leakage sensor of the high-pressure water pump in a hydropower station according to claim 4, characterized in that: A fixing block (202) is provided inside the square groove (201d), and one end of the fixing block (202) is in contact with the triangular protrusion (102b).

6. The fixing device for the packing leakage sensor of the high-pressure water pump in a hydropower station according to claim 5, characterized in that: The fixing block (202) has a finger hole (202a) at the end away from the triangular protrusion (102b).

7. The fixing device for the packing leakage sensor of the high-pressure water pump in a hydropower station according to claim 6, characterized in that: A cylindrical groove (201e) is provided inside the square groove (201d). The outline of the cylindrical groove (201e) is larger than that of the square groove (201d). The fixing block (202) is provided with a limiting plate (202b). The limiting plate (202b) is located inside the cylindrical groove (201e). An elastic element (203) is provided between the limiting plate (202b) and the end face of the cylindrical groove (201e) away from the triangular protrusion (102b).

8. The fixing device for the packing leakage sensor of the high-pressure water pump in a hydropower station according to claim 7, characterized in that: The end of the fixing block (202) that contacts the triangular protrusion (102b) is wedge-shaped and can be embedded in the tooth groove of the ratchet bar.

Images