Adjustable wind speed probe device

Abstract

The utility model belongs to the technical field of wind speed measuring equipment, and particularly relates to an adjustable wind speed probe device which comprises a monitor, a data line, a handle, a fixed pipe, a movable pipe and a detection head. The top of the handle is connected with a fixed pipe, a movable pipe is inserted into the top of the fixed pipe, a detection head is arranged at the top of the movable pipe, a lining part attached to the inner side wall of the fixed pipe is arranged on the outer side of the bottom of the movable pipe, a limiting groove is formed in the outer side of the lining part, and a rubber ring is sleeved with the limiting groove and attached to the inner side wall of the fixed pipe; the top of the fixed pipe is provided with a blocking piece used for limiting the position of the movable pipe, the blocking piece is sleeved with a magnet ring, a rubber ring slides on the inner side wall of the fixed pipe, friction force is increased, the movable pipe is prevented from sliding, and abrasion is reduced. When the movable pipe is pulled to the maximum length, the magnet sheet and the magnet ring attract each other, so that the movable pipe is firmly connected with the gear piece, shaking and dislocation in measurement are prevented, and stability and accuracy of wind speed measurement are ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of wind speed measuring equipment, specifically relates to an adjustable wind speed probe device. BACKGROUND

[0002] In the wind speed measurement process, the height position of the probe has an important influence on the accuracy of the measurement result. The existing wind speed probe device usually adopts the structure of fixed pipe and movable pipe, and realizes height adjustment through simple sleeve connection. However, the friction between the movable pipe and the fixed pipe is small during the adjustment process, so that the height position after adjustment is unstable, and shaking and misplacement are easy to occur during the measurement process, which affects the measurement precision.

[0003] At the same time, the sliding of the movable pipe in the fixed pipe is easy to cause abrasion to the inner side wall of the fixed pipe, shortening the service life of the equipment. Some devices try to increase the fastener to improve the stability, but this increases the complexity of operation, which is not conducive to rapid adjustment. UTILITY MODEL CONTENT

[0004] In view of the problems in the prior art, the utility model aims at providing an adjustable wind speed probe device, which can increase the friction between the movable pipe and the fixed pipe, reduce the abrasion of the inner wall, and keep stable when adjusted to the maximum length.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] An adjustable wind speed probe device, comprising a monitor, the top end of the monitor is connected with a data line, one end of the data line is connected with a handle, the top of the handle is connected with a fixed pipe, the top of the fixed pipe is inserted with a movable pipe, and the top of the movable pipe is provided with a probe head.

[0007] The top of the fixed pipe is provided with a gear position piece, which is used for limiting the position of the movable pipe.

[0008] The bottom outside of the movable pipe is provided with an inner lining piece, and the inner lining piece is matched with the inner side wall of the fixed pipe.

[0009] Further, the outer side of the inner lining piece is provided with a limiting groove, the limiting groove is provided with a rubber ring, and the rubber ring is matched with the inner side wall of the fixed pipe.

[0010] Further, the inner side of the gear position piece is provided with a magnet ring, and the upper end surface of the inner lining piece is provided with a magnet piece.

[0011] The opposite surfaces of the magnet piece and the magnet ring are magnetically opposite.

[0012] Further, the inner side of the gear is fixedly connected with a base, and the magnet ring is arranged on the base.

[0013] Further, the inner side wall of the gear is provided with a second connecting thread, and the top outer side of the fixed tube is provided with a first connecting thread matched with the second connecting thread.

[0014] Further, the handle is sleeved with a rubber sleeve.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] First, the inner lining is arranged on the bottom outer side of the movable tube, and the inner lining is attached to the inner side wall of the fixed tube. The outer side of the inner lining is provided with a limiting groove, and the limiting groove is sleeved with a rubber ring. The rubber ring is in close contact with the inner side wall of the fixed tube, which increases the friction between the movable tube and the fixed tube, preventing the movable tube from sliding after adjustment. At the same time, the rubber ring is soft, which can effectively reduce the wear of the inner side wall when the movable tube slides in the fixed tube, prolonging the service life of the device.

[0017] Secondly, the magnet ring is sleeved on the inner side of the gear, and the upper end face of the movable tube is provided with a magnet piece, and the magnet piece and the opposite surface of the magnet ring are magnetically opposite. When the movable tube is pulled to the maximum length, the magnet piece and the magnet ring are attracted to each other, so that the movable tube and the gear are firmly connected. This magnetic adsorption design prevents the movable tube from shaking and misplacing during measurement, ensuring the stability and accuracy of wind speed measurement.

[0018] Through the above structure design, the present application solves the problem of unstable height position caused by insufficient friction between the movable tube and the fixed tube, and avoids the wear of the inner side wall of the fixed tube by the movable tube. At the same time, the magnetic adsorption mechanism is adopted, which replaces the traditional fastener, improves the convenience of operation and the rapidity of adjustment, and meets the precise adjustment requirements of the height position of the wind speed probe in different environments. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present application;

[0020] Figure 2 It is a split structural schematic diagram of the present application;

[0021] Figure 3 It is Figure 2 It is an enlarged schematic diagram of position A in the middle;

[0022] Figure 4 It is a structural schematic diagram of the movable tube of the present application;

[0023] Figure 5 It is Figure 4 It is an enlarged schematic diagram of position B in the middle;

[0024] Figure 6 It is a structural schematic view of the gear piece of the utility model.

[0025] In the drawings, the component list represented by each reference numeral is as follows:

[0026] 1, monitor;

[0027] 2, data line;

[0028] 3, handle; 31, rubber sleeve;

[0029] 4, fixed tube; 41, first connecting thread;

[0030] 5, movable tube;

[0031] 51, inner liner; 511, magnet piece; 512, limiting groove; 52, rubber ring;

[0032] 6, probe head;

[0033] 7, gear piece; 71, second connecting thread; 72, base; 73, magnet ring. DETAILED DESCRIPTION

[0034] In order to make the purpose and advantages of the utility model more clear and obvious, the utility model is specifically described below in combination with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the protection scope specifically requested by the utility model.

[0035] Example 1:

[0036] Referring to Figures 1-6 An adjustable wind speed probe device, comprising a monitor 1, the top end of the monitor 1 is connected with a data line 2, one end of the data line 2 is connected with a handle 3, the top of the handle 3 is connected with a fixed tube 4, the top of the fixed tube 4 is inserted with a movable tube 5, and the top of the movable tube 5 is provided with a probe head 6; through the cooperation of the handle 3, the fixed tube 4 and the movable tube 5, the height of the probe head 6 can be adjusted according to the needs, and the needs of wind speed measurement under different environments are met; a rubber sleeve 31 is sleeved on the handle 3, the rubber sleeve 31 is soft in material, has the functions of anti-skid and shock absorption, and improves the holding comfort of the handle 3; the data line 2 is used for connecting the monitor 1 with the probe head 6, realizes the real-time transmission and display of wind speed data.

[0037] The top of the fixed tube 4 is provided with a stop piece 7 for limiting the position of the movable tube 5; the stop piece 7 is screwed with the top of the fixed tube 4, which ensures the stable installation of the stop piece 7 and prevents the movable tube 5 from being separated from the fixed tube 4 during the pulling process; the internal structure design of the stop piece 7 enables the movable tube 5 to be stably locked when adjusted to the maximum length, avoiding shaking and misplacement during the measurement process, and improving the accuracy of wind speed measurement.

[0038] The bottom outer side of the movable tube 5 is provided with an inner lining 51 which is in close contact with the inner side wall of the fixed tube 4; the inner lining 51 increases the contact area between the movable tube 5 and the fixed tube 4, improves the friction therebetween, and prevents the movable tube 5 from shaking when sliding in the fixed tube 4; at the same time, the inner lining 51 can reduce the abrasion of the inner side wall of the fixed tube 4 by the movable tube 5, prolonging the service life of the device.

[0039] Referring to Figures 4-5 , the outer side of the inner lining 51 is provided with a limiting groove 512, and a rubber ring 52 is sleeved in the limiting groove 512 and in close contact with the inner side wall of the fixed tube 4; the setting of the rubber ring 52 further increases the friction between the movable tube 5 and the fixed tube 4, preventing the movable tube 5 from sliding too fast or being unstable in position during the adjustment process; the rubber ring 52 is soft in material, which can effectively reduce the abrasion of the inner side wall of the fixed tube 4 and protect the inner surface of the fixed tube 4.

[0040] Referring to Figures 4-6 , the inner side of the stop piece 7 is sleeved with a magnet ring 73, and the upper end face of the inner lining 51 is provided with a magnet piece 511; the magnet piece 511 and the opposite surface of the magnet ring 73 are magnetically opposite; when the movable tube 5 is pulled to the maximum length, the magnet piece 511 and the magnet ring 73 are attracted to each other, so that the movable tube 5 is firmly connected with the stop piece 7; this magnetic adsorption design prevents the movable tube 5 from shaking and misplacing at the maximum length, ensuring the stability and accuracy of wind speed measurement.

[0041] Referring to Figure 6 , the inner side of the stop piece 7 is fixedly connected with a base 72, and the magnet ring 73 is sleeved on the base 72; the base 72 provides a stable installation position for the magnet ring 73, ensuring the fixation of the magnet ring 73 on the inner side of the stop piece 7; through the fixation of the base 72, the magnet ring 73 can be accurately aligned with the magnet piece 511, enhancing the magnetic adsorption effect.

[0042] Referring to Figure 3 and Figure 6The inner side wall of the gear 7 is provided with a second connecting thread 71, and the top outer side of the fixed tube 4 is provided with a first connecting thread 41 matched with the second connecting thread 71. The gear 7 is stably installed on the top of the fixed tube 4 through the threaded connection of the first connecting thread 41 and the second connecting thread 71, so that the gear 7 is prevented from loosening or falling off during use. The threaded connection facilitates the assembly and disassembly of the device.

[0043] Referring to Figure 1 The handle 3 is sleeved with a rubber sleeve 31. The rubber sleeve 31 has an anti-skid function, thereby improving the safety and stability of operation. During use, the rubber sleeve 31 can effectively prevent hand sliding, thereby increasing the comfort of holding.

[0044] Embodiment 2

[0045] The embodiment aims at the problem that the insufficient friction between the movable tube and the fixed tube causes the instability of the height position, and proposes an improved scheme.

[0046] The bottom outer side of the movable tube 5 is sleeved with an inner liner 51 made of polytetrafluoroethylene (PTFE) material with a thickness of 1.5 mm, which has good wear resistance and low friction coefficient. The outer side of the inner liner 51 is provided with a limiting groove 512 with a size of 1 mm in depth and 3 mm in width. The limiting groove 512 is sleeved with a rubber ring 52 made of nitrile rubber (NBR) material with a hardness of 70 Shore A, which can maintain elasticity within a temperature range of-40℃ to 120℃.

[0047] The rubber ring 52 is tightly combined with the inner side wall of the fixed tube 4. The inner diameter of the fixed tube 4 is 25 mm, and the outer diameter of the movable tube 5 is 22 mm. The thickness design of the inner liner 51 and the rubber ring 52 makes the interference fit between the movable tube 5 and the fixed tube 4 be 0.5 mm. According to the friction formula: F = μN

[0048] Wherein, μ is the friction coefficient, and N is the normal pressure. Due to the elastic deformation of the rubber ring 52, an additional normal pressure is generated on the inner side wall of the fixed tube 4, thereby increasing the friction force, and the friction coefficient can reach 0.6. In this way, after adjusting the height position of the movable tube 5, the self-sliding of the movable tube 5 can be effectively prevented, and the stability of the height position can be maintained. At the same time, the low friction coefficient characteristic of the inner liner 51 reduces the resistance of the movable tube 5 when sliding in the fixed tube 4, thereby protecting the inner side wall of the fixed tube 4 and prolonging the service life of the device.

[0049] Embodiment 3

[0050] The embodiment aims at the problem that the movable tube is prone to shaking and mispositioning when the movable tube is at the maximum length, and proposes a magnetic adsorption design.

[0051] The inner side of the gear 7 is sleeved with a ring-shaped magnet ring 73, which is made of NdFeB permanent magnet material, with an inner diameter of 26 mm, an outer diameter of 30 mm, a thickness of 5 mm, and a magnetic flux density of 1.2 Tesla. The upper end surface of the inner lining 51 is fixed with a magnet sheet 511, which is made of NdFeB material, with a diameter of 24 mm, a thickness of 3 mm, and a magnetic flux density of 1.2 Tesla. The opposite faces of the magnet sheet 511 and the magnet ring 73 are magnetically opposite, i.e., one is N-pole and the other is S-pole.

[0052] When the movable tube 5 is pulled to the maximum length, the distance between the magnet sheet 511 and the magnet ring 73 is close to 0 mm. According to the magnetic force formula:

[0053]

[0054] Where μ0 is the vacuum permeability, H is the magnetic field strength, A is the magnetic pole area, and r is the distance between the two magnetic poles. Due to the extremely small distance, the attractive force can reach 15 Newton, which is sufficient to keep the movable tube 5 stable during measurement without shaking and misalignment. This magnetic adsorption method replaces the traditional mechanical locking mechanism, improving the convenience and reliability of operation and ensuring the accuracy of wind speed measurement.

[0055] Embodiment 4:

[0056] This embodiment comprehensively solves the wear problem between the movable tube and the fixed tube, while improving the simplicity of operation and the speed of adjustment.

[0057] The fixed tube 4 and the movable tube 5 are both made of 6061 aluminum alloy material, which has good mechanical strength and corrosion resistance. In order to reduce wear, the inner side of the inner lining 51 is coated with a layer of 0.1 mm thick MoS2 solid lubricant, which reduces the friction coefficient when the movable tube 5 slides in the fixed tube 4.

[0058] The gear 7 is installed on the top of the fixed tube 4 by threaded connection, and the inner side wall of the gear 7 is provided with a second connecting thread 71, and the top outside of the fixed tube 4 is provided with a first connecting thread 41, both of which are M30x1.5 metric fine thread, with a thread accuracy of 6g level. Threaded connection ensures stable installation of the gear 7 and prevents loosening.

[0059] The inner side of the gear 7 is fixedly connected with a base 72, which is made of POM material and has good mechanical strength and dimensional stability. The magnet ring 73 is sleeved on the base 72, and the design of the base 72 ensures the accurate position of the magnet ring 73 and enhances the magnetic adsorption effect.

[0060] Through the above design, the assembly and disassembly of the device are more convenient, the height adjustment process of the movable pipe 5 is smooth, and quick adjustment can be realized without using any tool, thereby meeting the efficiency requirement of on-site measurement.

[0061] The working principle of the utility model is:

[0062] When the height position of the detection head 6 needs to be adjusted during use, only two hands are needed to hold the movable pipe 5 and the handle 3 respectively, the movable pipe 5 is pulled out of the fixed pipe 4, in the process of pulling out the movable pipe 5, the rubber ring 52 will slide on the inner side wall of the fixed pipe 4, and the movable pipe 5 is arranged, so that the friction between the movable pipe 5 and the fixed pipe 4 can be increased, and the abrasion of the inner side wall of the fixed pipe 4 can be reduced;

[0063] When the movable pipe 5 is pulled to the longest, the magnet sheet 511 will be in contact with the magnet ring 73, since the magnetism of the contact surface of the magnet sheet 511 and the magnet ring 73 is opposite, the magnet sheet 511 will be adsorbed on the magnet ring 73, so that the position between the movable pipe 5 and the fixed pipe 4 will not shake and dislocate during the measurement of the wind speed.

[0064] The above is only the preferred embodiment of the utility model, it should be pointed out that, for ordinary skilled person in the art, without departing from the principle of the utility model, a number of improvements and refinements can be made, these improvements and refinements should also be regarded as the protection scope of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model are implemented according to the conventional means in the field, without special description and limitation.

Claims

1. An adjustable wind speed probe apparatus, characterized by: The utility model provides a kind of monitoring instrument (1), the top of the monitoring instrument (1) is connected with data line (2), one end of the data line (2) is connected with handle (3), the top of the handle (3) is connected with fixed tube (4), the top of the fixed tube (4) is inserted with movable tube (5), and the top of the movable tube (5) is provided with probe head (6); The top of fixed tube (4) is provided with a gear (7), which is used to limit the position of movable tube (5); The bottom outside of the movable tube (5) is provided with an inner lining (51), which is in close contact with the inner side wall of the fixed tube (4).

2. An adjustable wind speed probe apparatus as claimed in claim 1, wherein: The outer side of the inner lining (51) is provided with a limiting groove (512), and the limiting groove (512) is sleeved with a rubber ring (52), which is in close contact with the inner side wall of the fixed tube (4).

3. An adjustable wind speed probe apparatus as claimed in claim 2, wherein: The inner side of the gear (7) is sleeved with a magnet ring (73), and the upper end surface of the inner lining (51) is provided with a magnet sheet (511). The magnet sheet (511) and the opposite surface of the magnet ring (73) are magnetically opposite.

4. An adjustable wind speed probe device according to claim 3, wherein: The inner side of the gear (7) is fixedly connected with a base (72), and the magnet ring (73) is sleeved on the base (72).

5. An adjustable wind speed probe apparatus as claimed in claim 1, wherein: The inner side wall of the gear (7) is provided with a second connecting thread (71), and the top outside of the fixed tube (4) is provided with a first connecting thread (41) matched with the second connecting thread (71).

6. An adjustable wind speed probe apparatus as claimed in claim 1, wherein: The handle (3) is sleeved with a rubber sleeve (31).

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