Novel measuring wheel

Abstract

The utility model is suitable for the field of oil and gas well depth measurement, and provides a novel measuring wheel which comprises a measuring wheel body, an installation base body is arranged in the middle of the measuring wheel body, and the measuring wheel body and the installation base body are connected through a plurality of spokes. A mounting hole is formed in the middle of the mounting base body, a cable guide groove is formed in the edge of the measuring wheel body, a nanometer layer is arranged at the bottom of the guide groove, and guide plates are arranged on the two sides of the guide groove. By arranging the guide groove on the measuring wheel mounting base body, relative sliding between the cable and the measuring wheel can be avoided, and the nano layer is fixed at the bottom of the guide groove, so that the depth measuring wheel has the characteristics of high hardness and strong wear resistance, and is beneficial to improving the accuracy and stability of a depth measuring system.

Description

Technical Field

[0001] The utility model belongs to the field of oil and gas well depth measurement, in particular to a novel measuring wheel. Background Art

[0002] The depth sounder is a special measuring device used to measure the well depth or the depth of the instrument lowered into the well during oilfield logging operations. It is mainly used to measure the well depth or the depth of the instrument lowered, and is widely used in the field of oilfield logging depth measurement.

[0003] The measuring depth sounder consists of a measuring wheel and a counting device. The measuring wheel and the cable squeeze each other and make the cable go around its edge. The cable drives the measuring wheel to rotate under the action of friction. The counting device is connected in the middle of the measuring wheel. When the downhole instrument reaches the specified position, the cable lowering depth, that is, the well depth distance or the instrument lowering depth distance, can be calculated based on the reading of the counting device.

[0004] After the measuring wheel has been used for a long time, the contact surface will wear and fatigue due to the contact and friction between the measuring wheel and the cable. The friction with the cable will make the surface of the measuring wheel smooth, and it will slip when in contact with the cable, resulting in inaccurate depth measurement. In the prior art, a plurality of protrusions are provided at the contact point between the measuring wheel and the cable, and the protrusions are made of plastic. Although the wear of the measuring wheel during use is reduced to a certain extent, the measuring wheel still slips after contacting the cable, resulting in a large error in the logging depth.

[0005] In summary, a well depth distance measuring device is urgently needed to solve the problem of large error in measuring well depth by existing measuring wheels. Utility Model Content

[0006] The utility model provides a novel measuring wheel, aiming to solve the problem that the existing measuring wheel has large error in measuring well depth.

[0007] The embodiment of the utility model provides a novel measuring wheel comprising:

[0008] Measuring wheel body;

[0009] A mounting base is provided in the middle of the measuring wheel body, and the measuring wheel body and the mounting base are connected by a number of spokes;

[0010] A mounting hole is provided in the middle of the mounting base;

[0011] A guide groove for the cable is provided at the edge of the measuring wheel body, a nano layer is provided at the bottom of the guide groove, and guide plates are provided on both sides of the guide groove;

[0012] An anti-rotation block is also embedded and installed on the outer side of the measuring wheel body, and the anti-rotation block is embedded in the guide groove in a detachable manner.

[0013] Furthermore, the number of the spokes is five, the shape of the spokes is fan-shaped, and the spokes are integrally formed with the measuring wheel body.

[0014] Furthermore, at least three anti-rotation blocks are provided, and the anti-rotation blocks are arranged in the measuring wheel body at equal intervals.

[0015] Furthermore, a keyway is provided in the mounting hole.

[0016] Furthermore, the nano-layer is a zirconium oxide layer.

[0017] Furthermore, chamfers are respectively provided between the spokes and the measuring wheel body and the mounting base, and chamfers are provided between adjacent spokes.

[0018] A well logging depth measuring device, comprising:

[0019] Two pairs of upper and lower clamping wheels installed at the front end of the support frame;

[0020] Front left and right straightening wheels fixed to the front end support frame of the upper and lower clamping wheels, and rear left and right straightening wheels fixed to the rear end support frame of the upper and lower clamping wheels; and

[0021] A measuring wheel is fixed on a supporting frame at the rear end of the left and right rear righting wheels, and a rotary encoder is fixed on a supporting frame at the lower end of the measuring wheel.

[0022] By providing a guide groove on the measuring wheel mounting base and inlaying an anti-rotation block in the guide groove, relative sliding can be prevented between the cable and the measuring wheel. A nano layer is fixed at the bottom of the guide groove, which has strong wear resistance and can provide extremely high hardness and wear resistance, making the measurement accuracy more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the new measuring wheel provided by the utility model;

[0024] Figure 2 It is a schematic diagram of the left side structure of the measuring wheel provided by the utility model.

[0025] Description of component symbols in the figure:

[0026] 100, measuring wheel body; 110, guide plate; 120, anti-rotation block; 121, bolt; 130, nano layer; 200, mounting base; 210, mounting hole; 211, keyway; 300, spoke. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] The Deep Well Distance Measurement Device is a device specially used to measure the depth of a well. The Deep Well Distance Measurement Device usually consists of a depth sounder and a bottom surface data acquisition system. The depth sounder can be lowered to any designated position in the well by lowering a cable through a winch to measure the geological information near the well wall in order to more accurately determine the bottom position of the well; the cable is used for instrument power supply and data transmission or sensor measurement data, thereby measuring the well depth or the distance the measuring instrument is lowered.

[0029] In general, the well depth distance measuring device is an important measuring tool. By measuring the distance from the bottom of the well to the wellhead and combining it with geological information, it provides accurate data information for fields such as petroleum geological exploration and provides support for construction projects and decision-making.

[0030] The measuring wheel has high precision and stability and can be used in different types of logging operations. The measuring wheel plays an important role in detecting formations and measuring well depths. The measuring wheel drives the counter to count, and the counter can monitor the well depth in real time to ensure the accuracy and safety of logging operations and then perform related operations and decisions.

[0031] However, in the use of the existing measuring wheel, the friction between the measuring wheel and the cable causes the surface of the measuring wheel to wear, which makes the measuring wheel easy to slip, resulting in inaccurate well depth measurement. In order to solve the problem of slipping between the existing measuring wheel and the cable causing measurement stability and accuracy, this embodiment provides a new measuring wheel, including a measuring wheel body 100, a mounting base 200 is provided in the middle of the measuring wheel body 100, and the mounting base 200 and the measuring wheel body 100 are connected by spokes 300. When in use, the cable bypasses the measuring wheel body 100 and extends one end fixed with the detector into the well depth, and fixes the other end on the winder. The cable will drive the measuring wheel to rotate, and the measuring wheel will further drive the counter to rotate, and the height of the well depth from the ground can be measured through the circumference of the counter and the measuring wheel.

[0032] By providing a guide groove on the measuring wheel mounting base and inlaying an anti-rotation block in the guide groove, relative sliding between the cable and the measuring wheel can be prevented, making the measurement result more accurate; at the same time, a nanolayer is fixed at the bottom of the guide groove, which has strong wear resistance and can provide extremely high hardness and wear resistance, so that the object can maintain a longer service life in environments such as friction, scratching and wear, ensuring the reliability of well depth data, and helping users better understand and manage the geological characteristics of different depths of the wellbore.

[0033] Example 1

[0034] like Figure 1 and Figure 2 As shown, the embodiment of the utility model provides a new measuring wheel, comprising: a measuring wheel body 100;

[0035] A mounting base 200 is disposed in the middle of the measuring wheel body 100 , and the measuring wheel body 100 and the mounting base 200 are connected via a plurality of spokes 300 ;

[0036] A mounting hole 210 is provided in the middle of the mounting base 200;

[0037] A guide groove for the cable is provided at the edge of the measuring wheel body 100 , a nano layer 130 is provided at the bottom of the guide groove, and guide plates 110 are provided on both sides of the guide groove;

[0038] An anti-rotation block 120 is also embedded and installed on the outer side of the measuring wheel body 100 , and the anti-rotation block 120 is detachably embedded in the guide groove.

[0039] In this embodiment, the measuring wheel body 100 is used to support and fix the entire device. The measuring wheel can be made of metal, such as iron, steel or aluminum; or plastic, such as polypropylene, polyvinyl chloride, etc.

[0040] In one embodiment, the measuring wheel body 100 can be manufactured by an integrated molding process. For example, when the measuring wheel is made of plastic, injection molding can be used, specifically, by injecting molten plastic into a mold and cooling and solidifying it in the mold to form a product of a desired shape.

[0041] Furthermore, in this embodiment, the measuring wheel body 100 can be manufactured by a hot pressing process, where a plastic sheet or prepreg is placed in a hot mold of the measuring wheel and high pressure and temperature are applied to melt, fuse and solidify the plastic sheet or prepreg to form a product.

[0042] Furthermore, in this embodiment, when the material of the measuring wheel is metal, hot compression molding can be used, by placing metal or ceramic powder in a heated mold of the measuring wheel and applying high pressure to cause it to thermoplastically deform and sinter and solidify to form a product. Metal casting molding can also be used, by heating the metal to a liquid state, injecting it into a metal mold, and cooling it to form a product.

[0043] Furthermore, in this embodiment, the measuring wheel body 100 can also be manufactured using 3D printing technology, such as fused deposition modeling (FDM), photo-stereolithography (SLA / DLP), selective laser melting (SLM), etc., using a layer-by-layer addition method to stack and solidify materials layer by layer to form the measuring wheel body 100.

[0044] In another embodiment, the measuring wheel body 100 is connected to the mounting base 200 via a plurality of spokes 300, wherein the spokes 300 are evenly distributed between the measuring wheel base and the mounting base 200, and the material of the spokes 300 may be metal spokes 300 with high strength and durability, and the metal spokes 300 are usually made of aluminum alloy or steel.

[0045] Furthermore, in this embodiment, the material of the spokes 300 may also be carbon fiber spokes 300 with light weight and high strength. The carbon fiber spokes 300 are made of carbon fiber composite materials, which can reduce the weight of the measuring wheel and enhance the rigidity.

[0046] Furthermore, in the present embodiment, the material of the spoke 300 may also be a stainless steel spoke 300 with corrosion resistance, which is made of stainless steel and has high strength and durability; it may also be a cast aluminum spoke 300 with high shape complexity and design plasticity, which is usually made by a casting process.

[0047] Furthermore, in this embodiment, the number of the spokes 300 is at least three, and may also be four, five, or six. . . .

[0048] Taking five spokes 300 as an example, the five spokes 300 are evenly distributed between the measuring wheel body 100 and the mounting base 200. The spokes 300 can be made of the same material as the measuring wheel body 100 and the mounting base 200, and the measuring wheel body 100, the spokes 300 and the mounting base 200 can be integrally formed by an integral molding process. In this embodiment, the measuring wheel body 100, the spokes 300 and the mounting base 200 are preferably integrally formed by a process.

[0049] Furthermore, in this embodiment, the shape of the spoke 300 can be a straight spoke, that is, a straight spoke 300 radiating from the center of the hub to the rim; it can also be a J-shaped spoke 300 with a J-shaped spoke bending shape, where the J-shaped spoke 300 starts from the center of the hub and extends outward to form a J shape.

[0050] Furthermore, in the present embodiment, the shape of the spoke 300 may also be an S-shaped spoke having an “S” shape or a wave shape, and the S-shaped spoke extends outward from the center of the hub to form a continuous wave.

[0051] Furthermore, in this embodiment, the shape of the spoke 300 can also be a fan-shaped spoke extending outward from the center of the hub, and the fan-shaped spokes are radially distributed to form a fan shape; it can also be an arc-shaped spoke in a curved shape, which is a kind of arc-shaped spoke that bends outward from the center of the hub and is connected to the rim. The specific shape can be selected according to actual needs. In this embodiment, fan-shaped spokes are preferably used.

[0052] In another embodiment, the mounting base 200 is used to connect to the counter. A mounting hole 210 is provided in the middle of the mounting base 200. The mounting base 200 is connected to the counter through the mounting hole 210. The cable is passed around and fits in the guide groove to drive the measuring wheel to rotate.

[0053] Furthermore, in this embodiment, a guide groove for the cable is provided at the edge of the measuring wheel body 100, a nanolayer 130 is provided at the bottom of the guide groove, and guide plates 110 are provided on both sides of the guide groove, wherein the guide groove serves to guide the cable to extrude the measuring wheel body 100, wherein the shape of the guide groove may be a straight groove, a V-shaped groove, a U-shaped groove or a curved groove, and in this embodiment, a U-shaped groove or a circular groove is preferably used.

[0054] Furthermore, in this embodiment, guide plates 110 are provided on both sides of the guide groove. The guide plates 110 can be installed at both side edges of the guide groove. The guide plates 110 and the guide groove can be manufactured by an integral molding process.

[0055] More specifically, in the present embodiment, the material of the guide plate 110 may be metal, such as steel, aluminum alloy and stainless steel, which have high strength and rigidity; it may also be plastic, such as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), etc., which have the characteristics of light weight, insulation, corrosion resistance and low friction; it may also be composite materials, such as carbon fiber composite materials, glass fiber reinforced plastics, etc., which combine the advantages of metal or plastic and have light weight, high strength and corrosion resistance; the shape of the guide plate 110 may be a rectangular plate, a square plate, a circular plate or a curved plate, or a special shape. Specifically, according to the actual application requirements, other special shapes may be adopted, such as T-shaped, trapezoidal, V-shaped, etc., to meet specific positioning and guiding functions.

[0056] More specifically, in the present embodiment, a nanolayer 130 is provided at the bottom of the guide groove. The nanolayer 130 may be a siloxane nanolayer 130 formed by forming a layer of inorganic siloxane compound nanofilm on the surface of an object, or may be a coating nanolayer 130 having functions such as corrosion resistance, wear resistance, UV resistance, and scratch resistance. It may also be an oxide nanolayer 130. In the present embodiment, a non-magnetic nanolayer 130 is preferably used, wherein the thickness of the nanolayer 130 may be 1 mm, or 2 mm, 3 mm, 4 mm, or 5 mm. In the present embodiment, 5 mm is preferably used, and the material of the nanolayer is oxide.

[0057] Furthermore, in the present embodiment, an anti-rotation block 120 is also embedded and installed on the outer side of the measuring wheel body 100. The anti-rotation block 120 is detachably embedded in the guide groove. The anti-rotation block 120 is a device or element used to prevent the measuring wheel from sliding during contact with the measuring wheel. The anti-rotation block 120 can be made of metal, such as steel, iron, aluminum alloy, etc., which has high strength and rigidity and can provide good anti-rotation performance and durability; it can also be plastic, such as polyethylene (PE), polypropylene (PP), nylon, etc., which is not only lightweight and insulating but also has low friction characteristics; it can also be rubber, such as styrene-butadiene rubber (BR), nitrile-butadiene rubber (NBR), etc., which has excellent elasticity and shock resistance and can be used to prevent shaking and vibration of components during rotation. In the present embodiment, metal material is preferably used.

[0058] More specifically, in this embodiment, the shape of the anti-rotation block 120 can be cylindrical, square, conical, or T-shaped. In this embodiment, a square shape is preferably used. The square anti-rotation block 120 not only reduces production costs, but also facilitates installation and subsequent maintenance.

[0059] Furthermore, the anti-rotation block 120 is detachably embedded in the guide groove. The specific method can be a threaded connection, in which the anti-rotation block 120 is fixed in the guide groove by using threads; it can also be a plug-in connection, which uses a shape with high matching accuracy to connect parts. In this embodiment, a groove that matches the anti-rotation block 120 is provided on the measuring wheel base, and the anti-rotation block 120 is embedded in the groove; it can also be an embedded connection, in which a special embedded structure is used to fix the parts together. In this embodiment, a combination of bolts 121 and embedding is used. A through hole is provided on the anti-rotation block 120, and a thread is provided in the through hole. A threaded screw hole is provided on the measuring wheel base corresponding to the through hole. During installation, the anti-rotation block 120 is embedded in the measuring wheel base, and then the bolts 121 pass through the anti-rotation block 120 and are fixed to the measuring wheel base, thereby fixing the anti-rotation block 120 to the measuring wheel base.

[0060] Based on the above structure, the working principle of the cable and measuring wheel for measuring the well depth in this embodiment is as follows: the anti-rotation block 120 is embedded in the installation groove reserved in the measuring wheel base, and then the bolt 121 is passed through the through hole on the anti-rotation block 120, and fixed on the measuring wheel base together with the anti-rotation block 120 to complete the assembly of the measuring wheel; then the cable is passed around the measuring wheel to generate an extrusion force between the cable and the guide groove, and the cable drives the measuring wheel to rotate through the friction force. Under the action of the anti-rotation block 120, the cable will not slide with the measuring wheel, and the measuring wheel will then drive the installation base 200 to rotate. The rotation of the installation base 200 will drive the counter at the bottom to work, thereby recording the number of revolutions and angles of the measuring wheel, thereby completing the detection of the well depth.

[0061] In this embodiment, by providing a guide groove on the measuring wheel mounting base 200 and embedding an anti-rotation block 120 in the guide groove, relative sliding between the cable and the measuring wheel can be prevented, so that the measurement accuracy is more accurate; at the same time, a nanolayer 130 is fixed at the bottom of the guide groove, which has strong wear resistance and can provide extremely high hardness and wear resistance, so that the object can maintain a longer service life in environments such as friction, scratching and wear, ensuring the reliability of well depth data, and can help users better understand and manage the geological characteristics of different depths of the wellbore.

[0062] Example 2

[0063] refer to Figure 1 and Figure 2 In this embodiment, the number of the spokes 300 is five, the shape of the spokes 300 is fan-shaped, and the spokes 300 and the measuring wheel body 100 are integrally formed.

[0064] In this embodiment, the number of spokes 300 is preferably five, which are evenly distributed on the inner side of the measuring wheel body 100. Specifically, the center lines between adjacent spokes 300 are equally spaced with the mounting base 200 as the center, and the angle formed between the center lines of adjacent spokes 300 is 72 degrees. Furthermore, the shape of the spokes 300 is fan-shaped, and the spokes 300 and the measuring wheel body 100 are integrally formed.

[0065] In this embodiment, the spokes 300 are fan-shaped and are evenly spaced on the inner side of the measuring wheel body 100 , which can make the structure between the measuring wheel body 100 and the mounting base 200 more stable and reliable, and can also withstand external vibration and impact, maintain the integrity of the shape, and ensure long-term reliable operation.

[0066] Example 3

[0067] refer to Figure 1 and Figure 2 In this embodiment, at least three anti-rotation blocks 120 are provided, and the anti-rotation blocks 120 are arranged in the measuring wheel body 100 at equal intervals.

[0068] In this embodiment, there are at least three anti-rotation blocks 120. When the cable drives the measuring wheel to rotate, it can squeeze and contact at least one anti-rotation block 120. The anti-rotation blocks 120 are arranged at equal intervals in the measuring wheel body 100. The anti-rotation blocks 120 are preferably square. The length of the anti-rotation block 120 is 12 mm, the width is 7.5 mm, and the height is 10 mm. The angle formed between adjacent anti-rotation blocks 120 is 120 degrees, and an arc is provided above the anti-rotation block 120, and the angle of the arc is consistent with the curvature of the nanolayer 130.

[0069] By embedding the anti-sliding block in the measuring wheel body 100 , the anti-sliding block can provide better stability, so that there will be no relative sliding between the cable and the measuring wheel, and the data measured by the measuring wheel is more accurate.

[0070] Example 4

[0071] refer to Figure 1 and Figure 2 In this embodiment, a key slot 211 is defined in the mounting hole 210 .

[0072] In this embodiment, a key slot 211 is provided in the mounting hole 210. Specifically, the width of the key slot 211 may be 4 mm, the height may be 1.8 mm, and the length may be 20 mm. During installation, the counter may be installed in the mounting hole 210, and then the key block may be inserted into the key slot 211, so that the counter is fixedly connected to the measuring wheel.

[0073] By providing a keyway 211 in the mounting hole 210, the measuring wheel is connected to the counter by a key connection, which is convenient for connection, disassembly, assembly and subsequent maintenance.

[0074] Example 5

[0075] refer to Figure 1 and Figure 2 In this embodiment, the thickness of the nano-layer 130 is preferably 5 mm, the nano-layer 130 is a calcium oxide layer, and the material of the nano-layer 130 is zirconium oxide.

[0076] In this embodiment, the thickness of the nanolayer 130 is preferably 5 mm, wherein the nanolayer 130 can be fixed on the surface of the measuring wheel body 100 by surface adsorption; the nanolayer 130 can also be fixed on the surface of the measuring wheel body 100 by chemical treatment, specifically, for example, by introducing functional compounds on the surface of the measuring wheel body 100 to form a bond with the nanomaterial, thereby achieving fixation.

[0077] By providing the measuring wheel body 100 with the nano layer 130 , and the thickness of the nano layer 130 is preferably 5 mm, the wear resistance of the measuring wheel is increased on the one hand, and the friction between the measuring wheel and the cable is increased on the other hand, thereby increasing the measuring accuracy of the measuring wheel.

[0078] Example 6

[0079] refer to Figure 1 and Figure 2 In this embodiment, chamfers are respectively provided between the spokes 300 and the measuring wheel body 100 and the mounting base 200 , and chamfers are provided between adjacent spokes 300 .

[0080] In this embodiment, a chamfer is provided between the spoke 300 and the measuring wheel body 100, and a chamfer is provided between the spoke 300 and the mounting base 200. A chamfer may also be provided between the spoke 300 and the adjacent spoke 300. Specifically, the chamfer angle between the spoke 300 and the measuring wheel body 100 may be R1=6mm, R2=8mm, R3=10mm or others. The specific chamfer size may be actually adjusted according to the shape and number of the spokes 300. In this embodiment, the chamfer between the spoke 300 and the measuring body is preferably R1=6mm. In this embodiment, In the example, chamfers may also be provided between the spokes 300 and the mounting base 200, and the sizes of the chamfers may be R7=6mm, R8=6.5mm, and R9=7mm. The specific chamfer sizes may be adjusted according to the actual shape and number of the spokes 300. In the present embodiment, R7=6mm is preferably selected; further, chamfers R4=6mm, R5=6.5mm or R6=7mm are provided between the spokes 300 and the adjacent spokes 300. The specific values ​​may be adjusted according to the actual number and shape of the spokes 300. In the present embodiment, R5=6.5mm is preferably selected.

[0081] By providing chamfers between the spokes 300 and the measuring wheel body 100, between the spokes 300 and the mounting base 200, and between the spokes 300 and the adjacent spokes 300, the strength and durability of the entire measuring wheel are increased, and at the same time, stress concentration on the surface of the structure can be reduced, so that it can be more evenly dispersed to other parts of the structure, which helps to improve the strength and durability of the structure and reduce fatigue and fracture in the stress concentration area.

[0082] Example 7

[0083] A well logging depth measuring device, comprising:

[0084] Two pairs of upper and lower clamping wheels installed at the front end of the support frame;

[0085] Front left and right straightening wheels fixed to the front end support frame of the upper and lower clamping wheels, and rear left and right straightening wheels fixed to the rear end support frame of the upper and lower clamping wheels; and

[0086] A measuring wheel is fixed on a supporting frame at the rear end of the left and right rear righting wheels, and a rotary encoder is fixed on a supporting frame at the lower end of the measuring wheel.

[0087] In one embodiment, the well depth meter specifically includes upper and lower clamping wheels, which can be fixed to the front end of the support frame by bolts 121. The upper and lower clamping wheels can apply pressure or torque, and can be used to locate and maintain the horizontal position and direction of the cable.

[0088] In another embodiment, front left and right straightening wheels are installed on the support frame at the front end of the clamping wheel, wherein the front left and right straightening wheels are used for alignment and correction work to ensure that the various parts of the cable are correctly aligned and cooperate with each other, and by rotating or fine-tuning the left and right straightening wheels, the cable can smoothly enter the well logging depth meter.

[0089] In another embodiment, rear left and right straightening wheels are provided on the support frame at the rear ends of the upper and lower clamping wheels. The rear left and right straightening wheels are used to align and correct the cable. By rotating or fine-tuning the left and right straightening wheels, the cable can be placed in a direction tangent to the measuring wheel, so that the cable can be directly wound around the measuring wheel.

[0090] In another embodiment, the measuring wheel is provided with a nanolayer 130 and an anti-rotation block 120 to increase the wear resistance and durability of the measuring wheel, and also improve the transmission efficiency, which can maintain the stability of the device and improve the transmission efficiency; in summary, through the combined use of the nanolayer 130 and the anti-rotation block 120, more precise control and stability can be achieved.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new measuring wheel, characterized in that: include: Measuring wheel body; A mounting base is provided in the middle of the measuring wheel body, and the measuring wheel body and the mounting base are connected by a number of spokes; A mounting hole is provided in the middle of the mounting base; A guide groove for the cable is provided at the edge of the measuring wheel body, a nano layer is provided at the bottom of the guide groove, and guide plates are provided on both sides of the guide groove; An anti-rotation block is also embedded and installed on the outer side of the measuring wheel body, and the anti-rotation block is embedded in the guide groove in a detachable manner.

2. The novel measuring wheel according to claim 1 is characterized in that: The number of spokes is five, the shape of the spokes is fan-shaped, and the spokes are integrally formed with the measuring wheel body.

3. The novel measuring wheel according to claim 1 is characterized in that: At least three anti-rotation blocks are provided, and the anti-rotation blocks are arranged in the measuring wheel body at equal intervals.

4. The novel measuring wheel according to claim 1 is characterized in that: A keyway is provided in the mounting hole.

5. The novel measuring wheel according to claim 1 is characterized in that: The nano-layer is a zirconium oxide layer.

6. The novel measuring wheel according to claim 4, characterized in that: Chamfers are respectively arranged between the spokes and the measuring wheel body and the mounting base, and chamfers are arranged between the spokes and adjacent spokes.

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