1429results about "Mechanical depth measurements" patented technology

The utility model discloses a detection device and a control system for settlement of a lap joint surface of a new roadbed and an old roadbed, and relates to the technical field of road engineering monitoring, the detection device comprises a first support plate, a second support plate, two solar panels, two vibration sensors and two storage batteries, a placing box is mounted on the supporting rod, a laser displacement sensor and an industrial camera are mounted in the placing box, a detection plate is mounted on the second supporting plate, and a fluorescent graduated scale is mounted on the detection plate; according to the utility model, the traditional threaded rod and threaded cylinder adjusting mode is replaced by optimizing the adjusting mechanisms, the problems that a threaded structure is easy to wear and block and the manual operation efficiency is low are effectively solved, and a composite monitoring mode of the laser displacement sensor, the industrial camera and the fluorescent graduated scale is adopted, so that the monitoring precision is improved. And a multi-dimensional auxiliary assembly is combined to improve the reliability of the system.

The invention belongs to the technical field of medical instruments, and discloses a precision detection tool and a precision detection method.The precision detection tool comprises a positioning table and a measuring assembly, the measuring assembly is arranged on the positioning table and comprises a measuring body, a depth measuring part, a limiting part and an elastic part, and the measuring body is provided with a detection hole; the depth measuring piece is arranged in the detection hole, the limiting piece is arranged at one end of the measuring main body, and the elastic piece is arranged between the depth measuring piece and the limiting piece; the depth measuring piece moves relative to the detection hole and has a first position and a second position; the depth measuring piece abuts against the limiting piece at the second position, and the elastic piece enables the depth measuring piece to tend to move from the second position to the first position. According to the precision detection tool provided by the invention, the surgical robot is inserted into the detection hole to detect that the detection needle does not abut against the measurement main body, the detection needle abuts against the depth measurement piece, and the depth measurement piece does not abut against the limiting piece, so that the surgical robot meets the navigation positioning precision requirement.

The utility model relates to the technical field of pile foundation construction, and discloses a pile foundation hole depth measuring device for pile foundation construction, which comprises a mounting rack, the upper surface of the mounting rack is provided with a positioning groove extending out of the lower surface of the mounting rack, and the mounting rack is slidably sleeved with a positioning block through the positioning groove. The upper surface of the positioning block is provided with a sliding groove extending out of the lower surface of the positioning block, a fixing block is slidably arranged in the sliding groove in a sleeved mode, and the fixing block is provided with a measuring mechanism, according to the pile foundation hole depth measuring device for pile foundation construction, the length of the fixing block extending downwards into the pile foundation hole is the current depth of the pile foundation hole, measurement is accurate, and the measuring efficiency is high. Compared with a traditional method that a plumb bob and a measuring rope are used for measuring, the plumb bob is prone to colliding with foreign matter on the side wall of the foundation pit when stretching into the foundation pit, the situation that the plumb bob is damaged, the measuring rope shakes and measurement is not convenient is avoided, the measuring accuracy of the pile foundation hole is guaranteed, and meanwhile the practicability of the measuring device is improved.

An agricultural trench depth sensing system having a trench implement adapted to be disposed in a soil trench opened in a soil surface. In one embodiment an ultrasonic sensor detects a distance to an upper surface of said trench implement or a target disposed thereon. In another embodiment, said trench implement includes one or more fingers which rotate with respect to said trench implement to detect the soil surface relative to said trench implement. In another embodiment, said trench implement includes side sensors for detecting the sidewall of the soil trench.

The described cone penetrometer system is a geotechnical testing apparatus designed for accurate soil assessment comprising a drive shaft with an attached cone at its distal end, a load cell connected to the shaft for precise measurement of applied force, and a depth transducer to accurately gauge the penetration depth of the cone. This system distinguishes itself from traditional methods by directly converting force to bearing capacity based on the cone's surface area, eliminating the reliance on less accurate blow conversion tables. The inclusion of a reliable depth transducer ensures precise depth measurements, facilitating accurate plotting of bearing capacity against depth. While delivering enhanced accuracy, the system retains the advantages of lightweight, cost-effectiveness, and manual operation, aligning with the simplicity and efficiency characteristic of traditional methods like the Dynamic Cone Penetrometer (DCP) compared to more intricate and expensive Cone Penetration Test (CPT) systems.

The utility model discloses a water depth surveying device, and relates to the technical field of water depth surveying. Comprising a pay-off rack, a winding mechanism, a steel wire measuring rope, a submerged anchor and a rope hook, the pay-off rack comprises a mounting base; an inverted L-shaped rod frame is fixed on the upper surface of the mounting base; two reversing wheels are fixed on the lower surface of the horizontal rod part of the L-shaped rod frame; the submerged anchor comprises a submerged cylinder and a heavy hammer arranged in the submerged cylinder; the winding mechanism is mounted on the mounting base; and one end of the steel wire measuring rope is fixed and wound on a roller of the winding mechanism. Through the combination of the pay-off rack, the winding mechanism, the steel wire measuring rope, the submerged anchor and the rope hook, the steel wire measuring rope is tensioned by the rope hook after the submerged anchor reaches the bottom, and accurate water depth data can be obtained by conveniently reading the corresponding depth of the closest scale identification buckle above the water surface and subtracting the distance from the water surface; the arrangement of the floating guider facilitates the judgment of whether the steel wire measuring rope is in a vertical state in water, and facilitates the judgment of the accuracy of a measurement result.

The invention relates to the technical field of road detection, in particular to a multifunctional municipal road crack detection device which comprises a sweeping board, a detection mechanism is arranged at the top end of the sweeping board, the detection mechanism comprises a damping tube mounted above the sweeping board, a pressing rod slides in the damping tube, a probe is arranged at the bottom end of the pressing rod, and the probe is connected with the sweeping board. Dust and sundries around a crack are removed through a dust suction pump, the accuracy of measuring the depth of the crack through a probe is improved, an operator pulls a grip manually, the depth of the crack is accurately measured through scale marks on a damping pipe, data support is provided for repairing work, meanwhile, a pressing rod and damping liquid are used for pushing a push rod in a sleeve to move, and the repairing efficiency is improved. The position of the blocking plate is adjusted, the pigment flow is accurately controlled, the color depth is marked according to the crack depth, the severity of the crack is visually reflected, clamping of the clamping block and the clamping strip is controlled through air pressure change when the dust suction pump works, the probe is prevented from being damaged due to collision, the service life is prolonged, and the maintenance cost is reduced.

The utility model provides a rainwater pipeline sludge detection structure, which comprises a structure main body and a rainwater pipeline body, the structure main body is arranged at the top of the rainwater pipeline body through a limiting mechanism, the structure main body comprises a positioning cover, and a detection pipe is movably arranged at the central position of the positioning cover. The rubber pad is driven to extrude the inner wall of the pipe orifice under the torsion of the torsion spring rotating shaft, the positioning cover is conveniently fixed through the friction between the arc-shaped surface of the rubber pad and the pipe orifice and the pressure of the pressing plate, the detection pipe and the collection rod can be positioned through the positioning cover, and the collection rod is ensured to be located at the central position of the pipe orifice, so that the error is reduced, and the detection efficiency is improved. And the detection structure can work without electricity, so that the practicability of the detection structure is improved.

The invention discloses a river channel measuring device which comprises a depth marking assembly, an automatic triggering assembly, a folding and unfolding adjusting mechanism, an L-shaped supporting frame and a button mounting frame. The invention belongs to the technical field of riverway sludge measurement, and provides a depth marking assembly, an automatic triggering assembly, a water level detection assembly, a water level detection assembly and a water level detection assembly in order to solve the problem that the existing riverway measurement device is difficult to intuitively compare the sludge depth and the water level height. According to the scheme, the problem of sludge depth and water level height which are difficult to observe visually in a river channel is converted into the problem of observing the water depth indicator lamp and the sludge depth indicator lamp on the L-shaped support frame, so that the observation is more visual and convenient obviously; and the water depth indicator lamp and the sludge depth indicator lamp with the same size can indicate the sludge depth and the water level height in the river channel in equal proportion, and the measurement result is accurate.

The utility model relates to the technical field of bridge padstone construction, in particular to a device for detecting a reserved embedded hole of a support padstone. Comprising a cross ruler, movable ruler sleeves, two positioning rulers and a hole checking ruler, the hole checking ruler penetrates through the two positioning rulers, each positioning ruler is sleeved with the corresponding movable ruler sleeve, and the cross ruler is arranged below the two positioning rulers; the cross ruler comprises a mounting column and four rotating rulers, the center line of a support of the padstone is firstly released, the cross ruler is aligned with the center line of the support, the movable ruler sleeve is adjusted to the center position of the support, the positioning ruler is inserted into the movable ruler, and the positioning ruler is adjusted. After the extension sizes of the positioning rulers in the two directions are determined, the hole checking ruler is put into the anchor bolt hole, the hole position is lightly put down, if no obstacle is encountered, it is clearly indicated that the anchor bolt hole meets the requirement, and if the obstacle is encountered, recording is conducted, the obstacle direction is determined, and staff handling is facilitated after marking; in this way, the effect of accurately judging the hole position and hole depth can be achieved.

The utility model discloses a device for detecting the depth of a foundation pile hole. The device comprises a rack; the measuring assembly comprises a length measuring rope; the cleaning assembly comprises a water tank, two guiding elbows and a cleaning groove, the water tank is located below the rope winding roller and connected with the rack, the guiding elbows and the cleaning groove are both located in the water tank, the two guiding elbows are connected with the two opposite side walls of the water tank respectively, the cleaning groove is in an inverted U shape and located between the two guiding elbows, and the cleaning groove is connected with the water tank. A screw and a guide rod are arranged at the top of the cleaning groove, bristles are arranged on the inner side of the cleaning groove, and the screw penetrates through the top of the water tank in a matched mode. By arranging the cleaning groove and the rotating screw rod, the cleaning groove covers the length measuring rope between the two guide elbows, the length measuring rope is located in the groove of the cleaning groove at the moment, and when the length measuring rope moves, bristles in the cleaning groove can scrape off slurry on the length measuring rope, so that the slurry on the length measuring rope can be cleaned, and the later cleaning work can be further reduced.

The invention relates to the technical field of historic building crack repair, and discloses a microbial concrete grouting device for historic building repair, comprising: a sealing plate used for sealing a crack and provided with a through groove; the embedded rod is obliquely inserted into the ancient building and is inserted into the sealing plate; the pouring rods are vertically inserted into the crack through the through grooves, one end of each pouring rod abuts against the deep end of the crack, the depth of the crack is reflected through the display position of the other end of each pouring rod, and the pouring rods are arranged at intervals; the plugging block is installed in the through groove in a sliding mode, a penetrating hole allowing the pouring rod to penetrate through is formed in the plugging block, and after the pouring rod penetrates through the plugging block, the crack is plugged; a plurality of charging baskets; the stirring barrel is provided with a stirring paddle and is communicated with the plurality of material barrels; one end of the peristaltic pump is communicated with the stirring barrel, and the other end is communicated and detachably connected with the pouring rod; and the cart is used for transporting and accommodating the material barrel. The depth of the crack can be visually obtained, and the crack can be repaired from deep to shallow.

The invention relates to the technical field of lumbar puncture devices, in particular to an optical fiber lumbar puncture pressure measuring injection gun. The device is characterized in that (1) an optical fiber is used for replacing an original needle core, and a grating is arranged at the position, close to a needle head, of the optical fiber, so that the device can play a role of the original needle core and can accurately position a puncture position by measuring the tissue refractive index; and (2) a novel fiber bragg grating bourdon tube pressure sensor is added, so that accurate real-time pressure measurement in the puncture process is realized. (3) a cerebrospinal fluid collecting and discharging operation trigger and a piston injector operation trigger are arranged on an operation gun, a piston injector and a one-way valve injector are arranged at the muzzle end of the operation gun, and a push rod of the one-way valve injector is fixedly connected with the cerebrospinal fluid collecting and discharging operation trigger through a first connecting rod; a collection one-way valve I is arranged at the inlet end of the one-way valve injector, a discharge one-way valve II is arranged at the outlet end of the one-way valve injector, and the inlet end is in airtight communication with the puncture needle through a three-way structure. A push rod of the piston injector is fixedly connected with the piston injector operation trigger through the second connecting rod, a discharging one-way valve III is arranged at the inlet end of the piston injector, and the inlet end of the piston injector is in airtight communication with a puncture needle through a three-way structure. The cerebrospinal fluid collecting and discharging trigger is pressed down so that negative pressure can be formed in the one-way valve injector, the cerebrospinal fluid discharging trigger is released so that positive pressure can be formed in the one-way valve injector, and the puncture process of a needle core in the puncture needle and the puncture process of a pressure measuring device are optimized through fiber bragg gratings. The pressure of cerebrospinal fluid is dynamically monitored at a time, a cerebrospinal fluid sample is reserved, a contrast agent and medicine are injected, and the lumbar puncture pressure measuring and liquid discharging injection process is optimized.

The present invention relates to a contaminated-soil sampling drilling depth precise measurement device for environmental investigation, the device comprising a support base and a mounting seat, wherein a force distribution assembly is arranged between the support base and the mounting seat; the top of the mounting seat is connected to a support frame by means of several hydraulic lifting devices; a driving electric motor is mounted at the bottom of the support frame, and an output shaft of the driving electric motor extends to the top of the support frame and is fixedly sleeved with a second driving gear; a driving ring is movably connected to the support frame, and a first driving gear is sleeved on the outer wall of the driving ring; a driving sleeve is movably arranged in the driving ring, and the driving sleeve is connected to a drilling measurement assembly by means of a connecting support; and stabilization assemblies are mounted on the drilling measurement assembly. The objective of the present invention lies in providing a contaminated-soil sampling drilling depth precise measurement device for environmental investigation to overcome existing defects. The contaminated-soil sampling drilling depth precise measurement device has high drilling precision and measurement precision.

The invention discloses a sample selection device for natural resource engineering surveying and mapping, and relates to the technical field of engineering surveying and mapping. The bottom plate is arranged at the lower end of the sampling pipe in a sleeving manner and is used for ensuring that the sampling pipe is always in a vertical state during sampling, and the depth-keeping sampling mechanism is arranged at the bottom of the movable groove and is used for sampling soil with the required depth. The tip end of the bottom of the sampling pipe is inserted into a soil sampling area firstly, the sampling pipe is rotated to vertically drill into soil, after the through groove is drilled into the soil needing to be sampled by a depth, a soil sample can be taken out more conveniently by utilizing the depth-keeping sampling mechanism, and meanwhile, depth-keeping sampling can be carried out on the soil needing to be sampled.

The utility model provides an improved vernier caliper, which comprises a main scale and is characterized in that the outer wall of the main scale is provided with a detachable depth measuring assembly in a sliding manner; the left side of the lower part of the main scale and the left side of the lower part of the detachable depth measurement assembly are respectively and fixedly connected with an outer measuring jaw, and the detachable depth measurement assembly is located on the right side of the outer measuring jaw connected with the main scale; the left front side of the upper part of the main scale and the rear upper side of the left part of the detachable depth measurement assembly are respectively and fixedly connected with an inner measuring jaw; a sliding groove is formed in the middle rear side in the main scale; the detachable depth measurement assembly is further arranged in the sliding groove in a sliding mode. Through the arrangement of the vernier scale, the internal thread sleeve, the threaded rod and the depth measuring rod, the depth measuring rod can be conveniently detached, and the problem that the depth measuring rod falls to the ground and deforms can be effectively avoided.

The utility model relates to the technical field of soil collection, and discloses an electric soil sampler, comprising a spiral drill rod, a cylinder and a rotary power device, wherein the cylinder comprises a first cylinder, a second cylinder and a third cylinder connected in sequence from top to bottom; the width of the second cylinder is greater than the width of the third cylinder, and the width of the third cylinder is greater than the width of the first cylinder; the spiral drill rod is located in the cylinder, and the rotating end of the rotary power device is respectively connected to the first cylinder and the upper end of the spiral drill rod; in actual use, the utility model drives the spiral drill rod and the cylinder to rotate through the rotary power device, so that soil sampling and collection can be achieved by pressing the spiral drill rod downward, the entire collection time is short, and the collection efficiency is high; in addition, by arranging the first cylinder, the second cylinder and the third cylinder of different widths, the situation that the soil body is loosened and causes the volume expansion to cause the soil body to overflow can be avoided during soil collection, thereby achieving complete collection of the soil body.

The invention belongs to the technical field of building construction monitoring, and particularly relates to a foundation pit depth monitoring device and a monitoring method.The foundation pit depth monitoring device comprises a connecting device and a measuring device, the connecting device is composed of a fixed base and a ball head capable of rotating freely, and the measuring device is internally provided with a tape device, a tape band and a heavy hammer device; a piezoelectric sensing light-emitting ball is arranged in the heavy hammer, and when the heavy hammer touches the bottom of the foundation pit, the piezoelectric sensing light-emitting ball is pressed to emit light to prompt a measurer to read the extension length of the ruler belt, so that the depth of the foundation pit is accurately calculated. According to the foundation pit depth monitoring device disclosed by the invention, through the design of the ball head and the fixed base, the application capability of equipment in different construction environments is enhanced, and real-time and continuous monitoring of the depth of a foundation pit is realized in combination with stretching of the winding measuring device and pressed light-emitting feedback of a piezoelectric sensing light-emitting ball in the heavy hammer device; and the stability of the device in a complex environment is enhanced, and particularly under the condition that accumulated water exists at the bottom of a foundation pit, the measurement accuracy can still be kept.

The utility model discloses a pile machine construction depth detection device, which relates to the field of pile machine construction and comprises a rack, a base plate is arranged on the rack, and a through hole is formed in the middle of the base plate in a penetrating manner; in the detection mechanism, a storage box is fixed on a rack, an opening is formed in the lower end of the storage box, a winding roller is rotationally arranged in the storage box, a tape is wound outside the winding roller, the lower end of the tape penetrates through the opening and a through opening and is arranged outside a base plate, a balancing weight is fixed at the lower end of the tape, and a contact sensor is installed at the lower end of the balancing weight; in the flushing mechanism, a water tank is fixed to a base plate, a water pump is fixed to one side wall of the water tank, the two ends of a water guide pipe are connected with the water pump and a flushing pipe respectively, the flushing pipe is fixed to the lower side of the base plate, and a flushing opening of the flushing pipe is aligned to the measuring tape. And a flushing mechanism is arranged to flush the measuring tape, so that recycling and subsequent use of the measuring tape are facilitated.

The invention discloses a method for accurately detecting the wear depth of a part in the factory return fault detection and repair process of an aero-engine, and the method comprises the steps: enabling a measurement instrument and a to-be-detected part to reach the internal temperature of a measurement place before measurement, cleaning the to-be-detected part, carrying out the rough measurement of the wear shape and depth through a sample paste making method, and carrying out the measurement. A to-be-measured part is placed and fixed on the platform according to different measurement objects, the gauge pressing amount and the datum plane or the datum line are determined according to the different measurement objects, and finally the abrasion depth is accurately measured. Visual inspection is adopted, the abrasion depth or the proofing paste projection measurement result is judged through the experience of an inspector to serve as a rough measurement value, a corresponding reachable dial indicator or dial indicator probe is manufactured according to the abrasion shape, a to-be-measured part is fixed to a working platform, and it is ensured that a measurement datum plane or datum line is parallel to the platform; the abrasion depth can be accurately measured by stably sliding the dial indicator or the dial indicator frame, and the abrasion depth is used as the zero part with abrasion, and the component can be continuously used.

The utility model relates to the field of detection devices, in particular to a soil pH value detection device. The utility model provides a soil pH value detection device. A soil pH value detection device comprises a handheld seat, a grip, a probe, a first spring, a connecting cable, an operating handle, a protective cover and an adjusting mechanism. When the device is operated and used, the device can be handheld by holding the grip, the device is more convenient and labor-saving to use, and meanwhile, when a probe is inserted, the insertion depth of the probe can be accurately adjusted through the matching of the clamping teeth and the clamping plate, so that the probe can be inserted into a specified depth, and the probe insertion efficiency is improved. And after the detection operation is completed, the probe can be automatically pulled out and reset, and the probe does not need to be pulled out manually by an operator, so that the use is simpler.

The invention discloses a rock-soil geological exploration depth measuring device, and relates to the technical field of depth measurement, the rock-soil geological exploration depth measuring device comprises a fixed bottom plate, the upper surface of the fixed bottom plate is fixedly provided with a frame body structure, and the interior of the frame body structure is connected with a rotating sleeve wheel, a positive and negative linkage mechanism, an extrusion mechanism, a transmission double-wheel set and a pay-off wheel; one end of the positive and negative linkage mechanism is fixedly connected with a sponge cleaning block, and when the steel ruler cable is wound forwards and backwards, the sponge cleaning block and the scale surface of the steel ruler cable form self-adaptive contact, and surface dirt cleaning and transmission guiding are completed synchronously; when the forward and reverse linkage mechanism drives the steel ruler cable to perform forward and reverse winding, constant pre-tightening force is applied to the non-scale surface of the steel ruler cable, and instantaneous impact force generated by geological vibration is absorbed through elastic deformation. The device has the effects that scale protection and cleaning are integrated, the stability of a transmission path is improved, vibration impact is buffered, and efficient collaborative operation is achieved.

The invention discloses a detection mechanism for the grooving depth of a stator core. The detection mechanism comprises a base; the assembling seat is used for being matched with a stator iron core, and the assembling seat is matched with the base; the limiting component is used for limiting the stator core and is fixed with the base; the measuring meter is matched with the limiting component; the measuring head is matched with the notch groove on the stator iron core and is connected with the measuring meter; and assembling the stator core on the assembling seat, driving the assembling seat to move towards the measuring head, continuously driving the assembling seat to move after the groove bottom of the notch groove abuts against the measuring head, stopping moving the assembling seat when the stator core abuts against the limiting component, and keeping the stator core abutting against the limiting component. According to the invention, the depth of the notch groove on the motor stator can be rapidly and accurately detected.

The utility model belongs to the technical field of mine geology detection equipment, in particular to an omnibearing detection device for mine geology, which comprises a supporting mechanism, a detection rod and a detection mechanism, the supporting mechanism comprises a sleeve and a three-jaw chuck, and the three-jaw chuck is arranged outside the sleeve; the detection rod is inserted into the sleeve; the detection mechanism is arranged at the front end of the detection rod and comprises a fixing pipe and a detection component, the detection component is inserted into the front end of the fixing pipe, the three-jaw chuck is unfolded and fixed to the hole, the detection component is arranged at the front end of the detection rod, and the detection rod moves in a pulling and inserting mode in the sleeve to change the depth of the detection component in the hole. The detection part is used for detecting the interior of the hole, the structure is light and simple, disassembly and assembly are convenient, and carrying and using are convenient.

The utility model belongs to the technical field of bridge pile foundation detection, and particularly relates to a simple pier pile foundation scouring depth monitoring device. Comprising a detection feeler lever, one end of the detection feeler lever in contact with a riverbed scouring line is provided with a heavy hammer, the other end is provided with a pointer, and a pier column is provided with scales corresponding to the pointer; and the fixing device is used for fixing the detection probe rod to be connected with the pier column, ensuring that the detection probe rod is parallel to the pier column and enabling the detection probe rod to freely move in the vertical direction. The actual scouring depth is reflected through the scale pointed by the pointer, the monitoring process is simple and direct, the measured data are real and accurate, and meanwhile, the durability and the stability of the device are improved through the protective sleeve arranged in a preferable scheme. The utility model has the advantages of simple structure, difficulty in damage, quickness in installation, excellent durability under different water flow conditions and lower cost, and is favorable for popularization and application.

The invention relates to the technical field of pavement detection, in particular to a thickness detection device and method.The thickness detection device comprises a sliding frame of a concave structure, four pulley blocks, a vertical frame and a semicircular protractor, the four pulley blocks are arranged at the bottom of the sliding frame and located at the four corners, and the vertical frame is fixedly installed in the center of the interior of the sliding frame; a clamping groove is formed in the upper portion of the middle section of the vertical frame, the semicircular protractor is fixedly installed on the inner wall of the bottom of the clamping groove, the two ends of the semicircular protractor extend to the exterior of the vertical frame, and a leveling mechanism is arranged in the vertical frame. The detection device and the measurement mechanism are kept perpendicular to the road surface, the measurement precision is effectively improved, meanwhile, loose and falling soil is continuously tamped in the drilling process, hole burying of the soil is reduced, the road surface depth detection efficiency is improved, and the internal structure of a road is conveniently observed.

Depth gauges used in orthopedic surgery. Specific embodiments relate to depth gauges with a measuring feature, such as a rounded tip, intended to simulate a screw head for depth measurement during surgery.

The frog point rail detection measuring tool is provided with a ruler body of a T-shaped structure, and a left supporting vernier scale, a right supporting vernier scale and a section vernier scale are installed on the ruler body in a horizontal sliding mode. A depth vernier scale is slidably mounted on a vertical ruler of the ruler body and is matched with a fastening screw; the vertical height difference between the lower end supporting block of the supporting vernier scale and the tip of the lower end clamping jaw of the section vernier scale is 16mm; the left and right section vernier gauges detect the section width of the working edge of the point rail; a detection rod of the depth vernier scale vertically slides and is used for making contact with the top of the point rail, the extending length of the lower end of the detection rod corresponds to the lowering value height of the top of the point rail, and the depth vernier scale is used for detecting the lowering value height of the point rail. The device can be applied to delivery inspection or on-line abrasion detection occasions of the combined frog; the detection precision and the detection efficiency of the section width and the reduction value height of the point rail are improved, and product quality judgment is quickly made.