110results about How to "Set stable" patented technology

The utility model belongs to the technical field of surveying and mapping, and discloses a support for three-dimensional laser scanning measurement, which comprises a main rod body and an adjusting sleeve, the two ends of the main rod body are both provided with mounting screw ports, the bottom screw port is used for mounting a three-dimensional laser scanner, the top screw port is used for mounting a GPS / RTK measuring instrument, the adjusting sleeve sleeves the outer part of the main rod body, and the adjusting sleeve sleeves the outer part of the main rod body. A supporting foot stool is movably connected to the outer wall of the main rod body, and an adjusting mechanism is fixedly connected to the top end of the adjusting sleeve and used for controlling the main rod body to slowly slide in the adjusting sleeve. During use, the geodetic coordinate position is obtained through the GPS, the three-dimensional size of a measured object is obtained through the three-dimensional laser scanner, the measurement efficiency and quality can be effectively improved, stable erection can be achieved through the arrangement of the supporting foot stool, the main rod body can drive the instrument to slowly and stably ascend and descend through the arrangement of the adjusting sleeve and the adjusting mechanism, and the measurement accuracy is improved. And the use stability of the instrument is further improved.

The utility model belongs to the technical field of valve terminal assembly, and discloses an auxiliary positioning tool for valve terminal installation, which comprises an installation seat and a distributor, an installation cavity is arranged on the installation seat, the installation cavity is used for placing a confluence plate to be installed, the distributor comprises a handheld plate and a plurality of separating plates, the separating plates are uniformly fixed on the handheld plate, and the handheld plate is provided with an opening. The device has the advantages that a worker firstly fixedly installs one electromagnetic valve at the end of the confluence plate, places the other electromagnetic valves to be installed at the upper ends of the confluence plate and the steps, the worker holds the handheld plate of the distributor by hand, and then the electromagnetic valves are separated from the confluence plate, so that the electromagnetic valves to be installed are installed on the confluence plate and the steps. The separating plate is inserted into the gap between every two adjacent electromagnetic valves, all the electromagnetic valves to be installed can also be stably arranged on the confluence plate, and therefore a worker only needs to place the electromagnetic valves to be installed after the first electromagnetic valve is installed and inserts the electromagnetic valves into the distributor, the function of positioning all the electromagnetic valves to be installed can be achieved, and the assembling efficiency is improved.

The utility model discloses an assembly type building door and window assembly which comprises an outer door frame and an inner window frame rotationally installed on the outer door frame, an upper transverse support is fixedly installed on the inner window frame, a first clamping block is fixedly installed on the upper transverse support, and a first elastic rod is installed in the first clamping block in an embedded mode. And meanwhile, a first ejection head is fixedly installed on the first elastic rod, a rubber pad is fixedly installed at the bottom end of the first clamping block, a first pressing rod is slidably installed in the inner window frame, and a second ejection head is fixedly installed on the first pressing rod. According to the assembly type building door and window assembly, the upper transverse support is rotationally installed on the inner window frame, the upper transverse support and the inner window frame form a clamping structure through the first clamping block, and the upper transverse support and the inner window frame can be separated through the second jacking head, the first spring and the first pressing rod; the glass body arranged in the inner window frame can be taken out from the upper portion of the inner window frame, and then maintenance personnel can replace the glass body conveniently.

The utility model discloses an automobile grille with an automobile data recording image installation structure. The automobile grille comprises an automobile grille body, an automobile data recording image instrument, a protection box, an installation assembly and an auxiliary assembly. A protection box is fixedly arranged between grating plates of the automobile grating body, a square groove is formed in the bottom end of a box groove of the protection box, an opening penetrating through the protection box is formed in the bottom of the square groove, and the automobile data recorder is arranged in the protection box through a mounting assembly and an auxiliary assembly and faces the opening in the bottom of the square groove. The automobile data recording imager is arranged in the protection box on the automobile grille body, meanwhile, the protection glass is arranged in the protection box to protect the automobile data recording imager, and meanwhile, the installation assembly and the auxiliary assembly guarantee stable arrangement of the automobile data recording imager; damage to the driving recording image instrument caused by splashed broken stones in the driving process of the automobile is avoided, and normal use of the driving recording image instrument is guaranteed.

The utility model relates to the technical field of rail transit cable installation, in particular to a cable joint bracket device which comprises a supporting rod, the supporting rod comprises a plurality of supporting sections, the adjacent supporting sections are detachably connected, the supporting rod is provided with a plurality of clamps used for clamping cables, and the clamps are arranged on the supporting rod. The supporting rod is connected with a plurality of supporting frames at intervals in the longitudinal direction of the supporting rod. The length of each supporting section is shorter than that of the integral supporting rod, the supporting sections can be conveniently carried in a narrow cable bin, combined and installed on site, construction and installation are convenient, the construction period is shortened, the construction cost is reduced, meanwhile, the weight of each supporting section is lighter than that of the integral supporting rod, and the supporting sections are fixed respectively. The cable connector bracket device is more stable in installation, the supporting frame is additionally arranged, the height of the supporting rod can be conveniently adjusted, the cable can be installed at a high position through the supporting frame arranged on the ground, and the situation that the cable is loosened under the shearing force effect caused by gravity and vibration is avoided.

The utility model relates to a light reflecting assembly and a warning device, and the light reflecting assembly comprises a flexible housing which is provided with a transparent layer; the reflective film is arranged in the flexible shell, and the reflective film and the transparent layer are oppositely arranged; the two ends of the flexible shell can be separately connected, and the connecting assembly is used for connecting the two ends of the flexible shell to form a ring shape so as to be arranged on the outer side of the warning device body in a sleeving mode. According to the light reflecting assembly disclosed by the invention, the flexible shell is arranged for mounting the light reflecting film, the light reflecting film can be exposed through the transparent layer of the flexible shell, and once the light reflecting film is irradiated by light, the light with high recognition can be reflected through the transparent layer, so that a safety warning is given; meanwhile, the reflective film is mounted on the inner side of the flexible shell, so that the reflective film can be prevented from being directly exposed in the environment, and the risk of damage caused by scratching and rainwater erosion can be effectively avoided; in addition, the two ends of the flexible shell can form a ring after being connected through the connecting assembly, so that the warning device can be sleeved with the light reflecting assembly, and disassembly and assembly are convenient.

The utility model discloses a fixed base of horizontal centrifugal pump, which comprises a first horizontal plate and a second horizontal plate, the second horizontal plate is abutted on the ground, the second horizontal plate is connected with the first horizontal plate through a supporting plate, a base is symmetrically arranged on the first horizontal plate, a centrifugal pump is fixedly connected on the base to be arranged above the first horizontal plate, a cable routing column is arranged on the first horizontal plate, a control box is arranged on the cable routing column, a control cable connected between the control box and the centrifugal pump is arranged in the cable routing column, a cable horse leg is arranged on one side of the first horizontal plate to fix the power cable of the centrifugal pump. The fixed base of horizontal centrifugal pump avoids the direct placement of the centrifugal pump on the ground, the rust caused by the ground moisture, and the problem of large vibration caused by uneven ground, and the control cable and power cable of the centrifugal pump are arranged more regularly and beautifully.

The utility model discloses a pipeline supporting device for water and electricity installation, and belongs to the technical field of water and electricity construction. A pipeline supporting device for water and electricity installation is used for supporting a pipeline and comprises a stand, a supporting ring and a fixing base. The supporting ring is fixedly arranged at the top of the stand through a fixing seat; the stand comprises a supporting table, more than one auxiliary rod, more than one bolt, a support and a plurality of brackets; the supports are fixed to the two ends of the bottoms of the corresponding supports respectively so as to support the supports. A channel groove is formed in the middle of the support; one end of the auxiliary rod penetrates through the channel groove and is slidably arranged; the supporting table is fixedly arranged at the top of the auxiliary rod; a plurality of through holes are formed in the auxiliary rod; the bolts penetrate through the through holes of the corresponding auxiliary rods and are erected at the tops of the supports on the two sides of the channel groove.

The utility model relates to the technical field of square lithium batteries, in particular to an output electrode base and a battery. The connecting part is arranged at the bottom of the fixing part; the end plate is provided with a connecting cavity, the connecting part is clamped in the connecting cavity, and at least part of the connecting part is located in the connecting cavity; and the connecting piece is arranged in the connecting part, and the connecting piece is used for connecting a conducting bar of the battery. The output pole base provided by the utility model can be stably arranged on the end plate, and the connecting part is connected with the end plate in a manner of being embedded into the cavity of the end plate, so that the output pole base does not occupy an installation space excessively, excessive special processing on the end plate is not needed, and weakening of the structural strength of the end plate can be effectively avoided.

The utility model discloses a high-balance aluminum alloy hub, which relates to the technical field of hubs and comprises a hub and a mounting groove arranged on the side wall of the hub, a mounting box is slidably arranged in the mounting groove, a balance block is arranged in the mounting box, guide blocks are fixedly arranged on two sides of the outer wall of the mounting box, guide grooves are arranged on two sides of the inner wall of the mounting groove, and the balance block is arranged in the guide grooves. A box cover covers the outer side of the mounting box, a limiting plate is arranged on the outer wall of the mounting box through an elastic mechanism, a limiting groove is formed in the top of the inner wall of the mounting groove, and the limiting plate is inserted into the limiting groove. According to the installation groove, the installation box, the guide groove, the guide block, the limiting groove, the limiting plate and the elastic mechanism, after the balance block is arranged in the installation box, the installation box and the interior of the installation groove can be connected in a limiting and inserting mode, it is guaranteed that the position of the installation box is fixed, the balance block cannot fall off even if the hub is vibrated frequently, and the service life of the hub is prolonged. And the use balance of the hub is improved.

The present application relates to the technical field of earth removal equipment, and particularly relates to a pushing and earth pressure cooperative control system for shield crossing building structures, which comprises an auger body, a first conveying pipe, a second conveying pipe, a conveying mechanism, a rotating ring, a connecting mechanism, a positioning frame, a positioning sheet, a protective frame and a linkage mechanism. In the present application, when in use, the connecting joint is connected with the existing solution conveying equipment, so that the existing solution conveying equipment can inject the soil treatment solution into the space between the sealing groove and the sealing frame, and then the soil treatment solution can be injected into the first liquid injection pipe and the second liquid injection pipe through the extension pipe, so that the soil treatment solution can be injected into the first conveying pipe and the second conveying pipe through the first liquid injection pipe and the second liquid injection pipe, and then the soil treatment solution can be efficiently conveyed into the protective frame through the first conveying pipe, and then discharged rapidly through the protective frame, and at the same time, the soil treatment solution can be injected into multiple pipe jacking pipes through the second conveying pipe.

The utility model discloses a hair washing device which comprises a machine frame, a water storage tank and a fixing assembly, the water storage tank and the machine frame can be separated, the fixing assembly comprises a first locking structure and a limiting structure, the first locking structure can be switched between a first state and a second state, in the first state, the first locking structure is suitable for locking the water storage tank and the machine frame, and in the second state, the first locking structure is suitable for locking the water storage tank and the machine frame. In the second state, the first locking structure is suitable for releasing locking of the water storage tank and the rack; the limiting structure can be switched between a third state and a fourth state, when the first locking structure is in the first state, if the limiting structure is switched to the third state, the limiting structure is matched with the first locking structure in a locking mode so as to lock the first locking structure, and if the limiting structure is switched to the fourth state, the limiting structure is matched with the limiting structure in a locking mode so as to lock the first locking structure. And the limiting structure is separated from the first locking structure so as to release the first locking structure. According to the hair washing equipment, it is guaranteed that the water storage tank is arranged stably, and the water storage tank is convenient to disassemble and assemble.

The present invention provides a spherical vertical micro-LED and a manufacturing method thereof, a display panel and a transfer method thereof. The spherical vertical micro-LED comprises a first semiconductor layer, a second semiconductor layer, a light-emitting layer, a first electrode, an insulating layer and a second electrode; the light-emitting layer is arranged between the first semiconductor layer and the second semiconductor layer; the first electrode covers at least a portion of the surface of the first semiconductor layer, the second electrode covers at least a portion of the surface of the second semiconductor layer, and the insulating layer covers the outside of the light-emitting layer or covers the outside of the light-emitting layer and a portion of the surface of the first semiconductor layer and the second semiconductor layer. The first semiconductor layer, the second semiconductor layer and the light-emitting layer form a spherical structure, and the first electrode, the insulating layer and the second electrode form a spherical structure covering the outer layer, thereby forming a spherical vertical micro-LED, which prevents the micro-LED from being stuck outside the loading well during the transfer process, facilitates accurate alignment with the loading well during the transfer process, and can effectively improve the transfer yield and production efficiency.

The present application discloses a lightning broadband magnetic field signal detection antenna system, including a magnetic antenna and an amplifying circuit connected to the magnetic antenna; the magnetic antenna includes two vertically cross-distributed magnetic rings, and the magnetic rings are cross-arranged with the center line of the plane as the axis. The present application utilizes the unique magnetic field change rate (dB / dt) measurement characteristics of the magnetic ring antenna itself to control the cutoff frequency of the high-frequency end in the frequency band, and through the amplifying circuit, the entire frequency band always maintains the dB / dt gain characteristics, so that the signal at the high-frequency end can obtain a gain of more than 20dB, effectively ensuring the measurement of high-frequency pulse signals, so that the low-frequency positioning system can obtain more high-frequency radiation source positioning information, further enriching the applicable scenarios of the low-frequency positioning system.

The invention provides a beverage extraction filter and a beverage extraction bag. A beverage extraction filter (1) according to the present invention is provided with a holder (4) and a bag-shaped filter body (3) in which a pair of base materials are opposed to each other, the holder (4) having: an upper affixing part (7) affixed so as to face the outer surface of the filter body (3) and affixed to the upper part of the filter body (3) in the horizontal direction; a central adhesive part (8) extending downward from the center of the upper adhesive part (7) in the horizontal direction; arm parts (9) which extend upward in a V-shape along both side edges of the central adhesive part (8) and then extend in the left-right direction at the upper ends thereof so as to be separated from each other; and a hanging part (10) which is continuous with the two arm parts (9, 9) at the left end and the right end and is formed to surround the side and the lower part of the arm parts (9, 9), the hanging part (10) is separated from the filter main body (3) and is hooked on the outer peripheral surface of the container, and an upper bending line (25) which extends in the vertical direction and enables the upper part of the hanging part (10) to extend along the container is formed at the boundary of the arm parts (9, 9) and the hanging part (10).

The invention relates to the field of household appliance equipment, and discloses a rotation driving structure, a rotation protection system and a water outlet device. The rotation driving structure is compact and reasonable in structure, the arrangement space can be saved, the product design is optimized, and the user experience is improved. The rotation driving structure is applied to the water outlet device, the water outlet device comprises a water outlet column and a faucet, the faucet is rotatably arranged at the top of the water outlet column through the rotation driving structure, the rotation driving structure comprises a driving part and a mounting mechanism, the driving part is fixed to the water outlet column, and the driving part drives the faucet to rotate; the driving piece is at least partially arranged in the faucet; the driving part is fixed to the water outlet column through the mounting mechanism, the mounting mechanism comprises at least two mounting columns, one ends of the mounting columns are connected with the water outlet column, and the other ends enter the faucet and are connected with the driving part.

The utility model discloses a kind of auxiliary devices of rooting point punching, the auxiliary device of rooting point punching includes vertical plate and connecting buckle, vertical plate is connected on rooting point by connecting buckle, vertical plate is equipped with magnetic drill, to make magnetic drill to rooting point punch, vertical plate on the both sides of magnetic drill is connected with strip plate, adjusting bolt is connected on strip plate, adjusting bolt and magnetic drill abut, to adjust the punching position of magnetic drill;Vertical plate is hinged with adjusting plate on the side away from magnetic drill, adjusting plate is connected with fastening buckle by connecting bolt, fastening buckle is clamped on web, to make vertical plate with magnetic drill stably set on rooting point.The auxiliary device of rooting point punching provided by the utility model can ensure that magnetic drill can be stably set on rooting point to carry out punching operation.The present application improves production efficiency, reduces labor intensity and construction cost, meets the requirement of energy saving and consumption reduction, and can realize recycling, convenient and efficient.

The utility model relates to the technical field of operation machinery, and discloses a protective cover plate structure and operation machinery. The protective cover plate structure comprises a cover plate body which is arranged above an oil cylinder of the dozer blade in a covering mode and movably connected with the dozer blade and the frame body. And the limiting flexible cable is arranged between the cover plate body and the frame main body and is used for limiting the maximum moving position of the cover plate body relative to the frame main body. The cover plate body is respectively and movably connected with the dozer blade and the frame main body, so that the cover plate body can move along with the dozer blade, the oil cylinder can be always in a state of being protected by the cover plate body, and the probability that the oil cylinder is damaged by foreign matters is reduced. In addition, the limiting flexible cable is arranged between the cover plate body and the vehicle frame body, the cover plate body can be prevented from exceeding the preset movement range, and the safety of the operation machine in the construction operation process is improved.

The utility model discloses a cooling device used in a stem cell cryopreservation process, and relates to the technical field of stem cell cryopreservation equipment. The device comprises a storage box, a cover plate is hinged to one side of the top of the storage box, a placement box is installed in the storage box, a plurality of test tube grooves are formed in the top of the placement box at equal intervals, and a gap groove is formed between the placement box and the inner wall of the storage box. Dry ice storage boxes are fixedly installed on the two opposite sides of the outer wall of the storage box, conveying pipes at the bottoms of the dry ice storage boxes are inserted into the bottoms of the gap grooves, and baffles distributed at intervals are fixedly arranged in the gap grooves. The cooling box, the water inlet pipe and the water outlet pipe can block external high temperature through circularly-cooled cooling water, a proper low-temperature environment in the transfer box is maintained, adverse effects of the external environment on the cooling process are reduced, normal cooling work is guaranteed, and the overall cooling efficiency is improved.

The utility model discloses a seat is taken to lengthen water diversion elbow, related water diversion pipeline technical field, including the elbow main part, and the one end of elbow main part is connected with the extension tube, and the other end is connected with vertical pipe, and the outer wall of elbow main part and extension tube junction is equipped with cutting groove and the profile groove, and the side of elbow main part is fixed with the vertical board close to vertical pipe, and is equipped with mounting hole and mounting groove on the vertical board, and the upper end and lower end of vertical pipe are equipped with first connecting groove and second connecting groove respectively, and the upper end of elbow main part is equipped with sealing groove, round groove, and sealing groove is equipped with the outside of round groove, and the sealing ring is inlayed in sealing groove. The utility model can stably set up elbow in the wall body, and is connected with external pipeline, so that water flow can be stably and effectively guided and is transported outward, avoids the occurrence of the water leakage accident as far as possible, and has improved the use effect of water diversion elbow.

The present invention discloses a bundle joint structure and a preparation method thereof, which belongs to the technical field of bamboo composite pipe connection, wherein the setting of the inner lining layer in the bundle joint structure can be effectively avoided by the corresponding setting of the integral rubber ring, the preparation process of the bundle joint structure can be simplified, and the risk of leakage can be avoided, and the corresponding opening of the connection groove on the outer periphery of the integral rubber ring and the corresponding setting of the reinforcement layer can ensure the strength, integrity and reliability of the bundle joint structure while the bundle joint structure is quickly formed, and the stable docking of the bamboo composite pipe can be achieved. The bundle joint structure of the present invention has a simple structure and a convenient preparation method. The obtained bundle joint structure after forming has strong integrity and high reliability. It can effectively improve the sealing and reliability of the bundle joint structure while ensuring the use strength of the bundle joint structure, ensure the reliability of the bamboo composite pipe connection, extend the service life of the bamboo composite pipe connection structure, reduce the application cost and maintenance cost of the bamboo composite pipe, and has good practical value and promotion value.

The utility model discloses an improved ultrasonic transducer belongs to ultrasonic transducer field, including upper cover and lower cover, upper cover and lower cover are assembled together, and the part of upper cover is connected with lower cover is provided with ceramic wafer, and ceramic wafer is equipped with positive electrode piece and negative electrode piece, is equipped with adjustable mounting structure on lower cover, and the position of ceramic wafer on lower cover is installed with limit abutting structure. Through setting outer thread on lower cover, cooperation adjustable mounting structure, limit abutting structure and limit sleeve use, adjustable mounting structure screw thread connection is on outer thread, can carry out height adjustment, and then change the installation height of entire ultrasonic transducer, utilize limit abutting structure and form the abutting action to adjustable mounting structure, ensure that adjustable mounting structure can be more stably set on the outer thread on lower cover, avoid the situation that ultrasonic transducer appears loose in the operation, guarantee the use stability of ultrasonic transducer.

The utility model discloses a fuel gas conveying pipeline with an anti-corrosion protection structure, which belongs to the technical field of fuel gas conveying pipelines and is technically characterized by comprising a conveying component, a sealing component, a connecting component and a control component. According to the utility model, when the conveying assembly is installed, the sealing assembly can be arranged on the conveying assembly, and the sealing assembly and the conveying assembly are tightly arranged, so that the surface or the interior of the conveying assembly can be prevented from being corroded or rusted due to the fact that water in soil enters the conveying assembly during subsequent use; in order to enable the sealing assembly to be stably arranged, the connecting assembly can be arranged on the sealing assembly, the sealing assembly can be stably arranged through the connecting assembly, and then external water is prevented from entering the sealing assembly, and the control assembly is arranged on the connecting assembly; and through the control assembly, when the sealing assembly needs to be opened subsequently, the sealing assembly can be quickly opened.

The invention relates to the technical field of stainless steel plate manufacturing, and discloses a stainless steel plate manufacturing device which comprises a base, a supporting mechanism used for supporting a stainless steel plate is installed on the base, a movable mechanism used for driving the stainless steel plate to adjust is connected to the supporting mechanism, and fixing mechanisms are arranged at the two ends of the stainless steel plate. When the movable mechanism moves from one end to the other end, the movable mechanism pushes the stainless steel plate and the other fixing mechanism, the stainless steel plate tilts upwards under the limiting effect of the connecting mechanism, and in the continuous pushing process of the movable mechanism, the stainless steel plate drives the movable rod to slide in the arc-shaped groove till the movable mechanism moves to the other end, and then the stainless steel plate moves to the arc-shaped groove. And through reciprocating motion of the movable mechanism, the effect of driving the stainless steel plate to be automatically turned over is achieved, and the two faces of the stainless steel plate are better polished.

The invention belongs to the technical field of building surface repairing and reinforcing auxiliary equipment, and relates to a structure protection coiled material and a manufacturing method, the structure protection coiled material comprises a structure protection coiled material and a protection film, and the protection film is adhered to the surface of the structure protection coiled material; the structure protection coiled material comprises a polymer cement layer and a resin layer, the resin layer is laid on one side of the polymer cement layer, and the other side of the polymer cement layer is connected with a protection film through an adhesive. According to the invention, coating of the polymer cement layer and the resin layer is integrated, and the polymer cement layer can be easily compatible with an existing structure surface layer (such as concrete) needing to be maintained, so that the polymer cement layer is in tight fit with the existing structure surface layer, and tight fit between the coiled material and the structure is ensured for protection; even if the structure cracks or expands, the structure protection coiled material can follow the change of the surface layer of the structure.

The invention belongs to the technical field of offshore wind power, and particularly relates to a connection structure and method for a discarded platform and a fan foundation. A draught fan is installed on a jacket column leg of an offshore platform, a transition piece is fixed to the lower end of a stand column of the draught fan, an insertion tip is fixed to the lower end of the transition piece, the central axis of the insertion tip coincides with the central axis of the stand column, and the insertion tip is coaxially inserted into the upper end of the jacket column leg. The jacket column legs are fixedly connected with the transition pieces or the stand columns.

The utility model discloses an electric ceramic cooker which comprises an electric ceramic cooker body, a heating element and a controller for controlling the heating element, the heating element is arranged in an inner cavity of the electric ceramic cooker body, and the electric ceramic cooker is characterized in that the electric ceramic cooker body is further provided with a placement groove, and the controller is arranged on the placement groove in a movable mode. An elastic piece and a convex section which are matched with each other are arranged between the controller and the placement groove; according to the electric ceramic cooker, the controller can be arranged on the placement groove of the electric ceramic cooker body, so that the overall size of the electric ceramic cooker product is small, the overall packaging and transportation cost of the product is reduced, and application and popularization of the product are facilitated; moreover, when the controller moves on the placement groove, elastic collision occurs between the elastic piece and the protruding section, sound feedback is generated during collision, a user can judge whether the controller moves in place or not according to sound, and operation is easy and convenient.

The utility model relates to an electric appliance instrument protection device, which belongs to the technical field of instrument protection devices and comprises a protection mechanism and a fixing mechanism, the protection mechanism comprises a shell I and a shell II, the fixing mechanism comprises a fixing mechanism I and a fixing mechanism II, the shell I and the shell II are connected through hinges, and the fixing mechanism I and the fixing mechanism II are connected through hinges. A self-locking mechanism is further arranged between the fixing mechanism I and the fixing mechanism II, a plurality of clamping mechanisms are further arranged on the inner wall of the fixing mechanism, the fixing mechanism is firmly installed on the outer side of the pipeline through the clamping mechanisms and the self-locking mechanism, and the protection mechanism is installed on the fixing mechanism through cooperation between a connecting groove and a connecting block to protect the instrument body. The instrument is prevented from collision, wading, corrosion and dust entering, normal functions of the instrument are protected, the service life of the instrument is prolonged, and production safety and stability are guaranteed.