A construction engineering concrete performance detector

Abstract

The application discloses a kind of building engineering concrete performance detector, including detector body, fixed sleeve and limit sleeve, the fixed sleeve is installed at the top of limit sleeve, at least two supporting legs are hinged to the side of limit sleeve, and the supporting leg is distributed along limit sleeve circumferentially array;Wherein, the lifting mechanism is fixed in the limit sleeve, the detector body is arranged in the inside of lifting mechanism, and the bottom of detector body extends from below limit sleeve and stretches out, the lifting mechanism is movably connected with detector body, the limit ring is fixed in the inner wall of limit sleeve, the limit ring is set to the lower end of detector body, and detector body can move under the limitation of limit ring, the adjusting rod of lifting mechanism stretches out from the upper part of fixed sleeve, so that the height of detector body in the axial direction of limit sleeve can be changed after operating adjusting rod.The data can be obtained after detection is completed, and great convenience is brought to detection work.

Description

Technical Field

[0001] This invention belongs to the technical field of equipment for testing the performance of concrete in building engineering, and specifically relates to a concrete performance testing instrument for building engineering. Background Technology

[0002] Concrete performance testing mainly examines the strength of concrete structures, the location and thickness of reinforcing bars and protective layers, concrete cracks and internal defects. The concrete rebound hammer is used to test the compressive strength of concrete and is the most widely used non-destructive testing instrument for concrete compressive strength in the field. The basic principle of the concrete rebound hammer is to use a tension spring to drive a hammer. The hammer strikes a spring rod that is in perpendicular contact with the concrete surface with constant kinetic energy, causing local concrete deformation and absorbing some energy. The other part of the energy is converted into the rebound kinetic energy of the hammer. When all the rebound kinetic energy is converted into potential energy, the hammer rebounds to its maximum distance. The instrument displays the maximum rebound distance of the hammer as the rebound value.

[0003] Existing concrete structural performance testing instruments for building engineering, such as Figure 1 As shown, the device includes a detector body, a fixing sleeve, and a limiting sleeve. The fixing sleeve is installed on the top of the limiting sleeve, and the detector body is located inside the fixing sleeve. The top of the detector body penetrates the fixing sleeve and extends to its outside, and the bottom of the detector body penetrates the limiting sleeve and extends to its outside. Fixing components are provided on both the left and right sides of the fixing sleeve.

[0004] Its drawback lies in the fact that the testing instrument body is fixedly installed inside the fixed sleeve and the limiting sleeve, supported by a support rod. A fixed cover is located on the top of the fixed sleeve, with its bottom penetrating the sleeve and extending inside. The bottom of the fixed cover is threadedly connected to the fixed sleeve. During testing, the height of the testing instrument body cannot be adjusted according to the concrete sample to be tested. Furthermore, the top of the testing instrument body is significantly lower than the fixed cover, making it inconvenient to remove the instrument body from inside the fixed sleeve and the limiting sleeve. This causes considerable inconvenience to the testing work. Summary of the Invention

[0005] To address the problems of existing concrete performance testing instruments for building engineering, where the instrument body is fixed inside a limiting sleeve, making it impossible to adjust the height of the instrument body according to the height of the concrete specimen during testing, and making it inconvenient to remove the instrument body from the fixed sleeve and limiting sleeve, thus hindering the smooth progress of testing, this invention proposes a concrete performance testing instrument for building engineering with a lifting mechanism fixed inside the limiting sleeve. This lifting mechanism moves the instrument body along the axis (height) of the limiting sleeve, allowing for more convenient adjustment of the instrument body's height during testing. This enables the instrument body to test concrete specimens of various sizes.

[0006] To solve the above technical problems, the application adopts the following technical solutions:

[0007] A building engineering concrete performance detector, comprising a detector body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed on the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in a circumferential array along the limiting sleeve;

[0008] The limiting sleeve is internally fixed with a lifting mechanism, the detector body is arranged inside the lifting mechanism, and the bottom of the detector body extends out from below the limiting sleeve, the lifting mechanism is movably connected with the detector body, a limiting ring is fixed to the inner wall of the limiting sleeve, the limiting ring is sleeved on the lower end of the detector body, the detector body can move under the limitation of the limiting ring, and an adjusting rod of the lifting mechanism extends out from the upper part of the fixing sleeve, so that the height of the detector body in the axial direction of the limiting sleeve can be changed by operating the adjusting rod.

[0009] Further, the lifting mechanism comprises two sliding rails fixed to the inner wall of the limiting sleeve, a moving assembly arranged between the two sliding rails, and a limiting assembly mounted on the moving assembly, the two sliding rails are oppositely arranged, the moving assembly is slidably connected with one sliding rail on each side and can move along the sliding rails;

[0010] The limiting assembly is movably connected with the two sliding rails, and under the action of the limiting assembly, the moving assembly can be fixed between the two sliding rails, and the moving assembly can move relative to the sliding rails when the limiting assembly is operated.

[0011] Further, the moving assembly comprises a sliding frame, the sliding frame is in an "n" type structure, the sliding frame is arranged in parallel with the sliding rails on both sides and is slidably connected with the sliding rails, the detector body is connected to the two ends of the sliding frame, the adjusting rod is arranged through the upper end of the sliding frame and can move relative to the sliding frame.

[0012] Further, the limiting assembly comprises two oppositely arranged rotating components, and a reed mounted on the lower part of the top end of the sliding frame, the adjusting rod is hingedly connected with the two rotating components after penetrating through the rear end of the reed, the two rotating components are hingedly installed on the inner wall of the sliding frame, the end of the rotating component penetrates through the sliding frame and cooperates with the sliding rail, so that the end of the rotating component can act on the sliding rail under the action of the reed, thereby limiting the movement of the moving assembly, and when the adjusting rod acts on the reed in the opposite direction, the end of the rotating component can be separated from the corresponding sliding rail.

[0013] Further, the two rotating parts each comprise a rotating rod and a limiting column hinged at the end of the rotating rod, the rotating rods are oppositely arranged to form an "n" type structure, one end of the rotating rod is hinged with the end of the adjusting rod, and the two ends of the rotating rod are arranged in parallel sliding rails, and the rotating rod is hinged at the sliding frame at the turning position, so that the rotating rod can rotate around the hinge point of the sliding frame after the adjusting rod moves.

[0014] Further, the two ends of the reed are fixed with the sliding frame, the middle part of the reed is sleeved on the connecting ring fixed on the adjusting rod, and the connecting ring is arranged at one end of the adjusting rod close to the rotating part.

[0015] Further, a connecting head is fixed at the end of the adjusting rod, the connecting head has an overall "n" type structure, and perforations are formed in the two sides of the connecting head, and the end of the rotating rod is hinged with the connecting head through the perforations.

[0016] Further, the two sliding rails are provided with limiting teeth in the length direction, the limiting teeth are located on the opposite sides of the sliding rails, and the limiting column is connected with the limiting teeth in a matched mode.

[0017] Further, the length of the end of the sliding frame parallel to the sliding rail is 2 / 3 of the length of the sliding rail.

[0018] Further, the fixed sleeve is connected with a fixed cover, and the adjusting rod penetrates through the fixed cover.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] The lifting mechanism is fixed in the limiting sleeve of the detector, the detector body is arranged in the lifting mechanism, the bottom of the detector body extends and protrudes from below the limiting sleeve, the lifting mechanism is movably connected with the detector body, a limiting ring is fixed on the inner wall of the limiting sleeve, the limiting ring is sleeved on the lower end of the detector body, the detector body can move under the limitation of the limiting ring, and the adjusting rod of the lifting mechanism protrudes from the upper part of the fixed sleeve. The height of the detector body in the axial direction of the limiting sleeve can be changed by operating the adjusting rod. The detector body is fixedly arranged in the fixed sleeve and the limiting sleeve in the prior art, and it is inconvenient to take out the detector body from the inside of the fixed sleeve and the limiting sleeve. After detection, the detector body can be taken out by operating the adjusting rod to obtain data, which greatly facilitates the detection work. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The present application is a building engineering concrete performance detector;

[0022] Figure 2 The present application is a building engineering concrete performance detector;

[0023] Figure 3 The present application is a building engineering concrete performance detector; Figure 2Enlarged view at A;

[0024] Figure 4 Structure diagram of the connection between the detector body and the lifting mechanism;

[0025] Figure 5 Structure diagram of the rotating rod.

[0026] The reference numerals are as follows:

[0027] The detector body 1, the fixed sleeve 2, the fixed cover 21, the limiting sleeve 3, the supporting leg 31, the plumb bob 32, the lifting mechanism 4, the adjusting rod 41, the connecting head 411, the connecting ring 412, the sliding rail 42, the sliding groove 421, the limiting tooth 422, the sliding frame 43, the spring piece 431, the rotating rod 44, and the limiting column 441. DETAILED DESCRIPTION

[0028] The application will be further described in detail below with reference to the drawings.

[0029] A constructional engineering concrete performance detector, as shown in the figure, comprises a detector body 1, a fixed sleeve 2, and a limiting sleeve 3. Figures 2-4 The fixed sleeve 2 is installed on the top of the limiting sleeve 3, and the limiting sleeve 3 is hingedly connected with at least two supporting legs 31 on the side surface. The supporting legs 31 are distributed in the circumferential direction of the limiting sleeve 3, and specifically, the supporting legs 31 are arranged at a certain angle with the limiting sleeve 3. The number of the supporting legs 31 can be three, which can ensure the stability of the support and reduce the weight of the detector as a whole.

[0030] The limiting sleeve 3 is fixedly connected with a lifting mechanism 4, and the detector body 1 is arranged inside the lifting mechanism 4. The detector body 1 can adopt an existing structure, and the lower end of the detector body 1 is provided with a pressure sensor. The bottom of the detector body 1 extends out from below the limiting sleeve 3. The lifting mechanism 4 is movably connected with the detector body 1. A limiting ring is fixedly arranged on the inner wall of the limiting sleeve 3, and the limiting ring is arranged on the lower end of the detector body 1. The detector body 1 can move under the limitation of the limiting ring. The adjusting rod 41 of the lifting mechanism 4 extends out from the upper part of the fixed sleeve 2, so that the height of the detector body 1 in the axial direction of the limiting sleeve 3 can be changed by operating the adjusting rod 41. The fixed sleeve 2 is connected with a fixed cover 21, and the fixed cover 21 can be removed from the upper part of the fixed sleeve 2. The adjusting rod 41 penetrates through the fixed cover 21.

[0031] According to a specific embodiment provided by the present application, the lifting mechanism 4 is movably connected with the detector body 1, and the detector body 1 can move under the limitation of the limiting ring. Specifically, the detector body 1 can move along the axis direction of the limiting ring, so that the detector body 1 can be fixed relative to the lifting mechanism 4, and the lower end of the detector body 1 can be perpendicular to the concrete test block to be detected, thereby ensuring the reliability of the data during detection. The adjusting rod 41 of the lifting mechanism 4 extends from the upper part of the fixed sleeve 2 for operation. After the adjusting rod 41 is operated, the height of the detector body 1 in the axis direction of the limiting sleeve 3 can be changed. The problem that the detector body 1 is fixedly arranged in the inside of the fixed sleeve 2 and the limiting sleeve 3 and is inconvenient to take out from the inside of the fixed sleeve 2 and the limiting sleeve 3 is solved. After detection is completed, the detector body 1 can be taken out by operating the adjusting rod 41 to obtain the data, thereby greatly facilitating the detection work.

[0032] The plumb line 32 is arranged on the outer wall of the limiting sleeve 3, so that the perpendicularity of the detector can be checked, the detector can be in a vertical state with the concrete, and the data accuracy of the detector is improved.

[0033] Further, as shown in Figure 2 and Figure 4 , the lifting mechanism 4 comprises two sliding rails 42 fixed on the inner wall of the limiting sleeve 3, a moving assembly arranged between the two sliding rails 42, and a limiting assembly installed on the moving assembly. The two sliding rails 42 are oppositely arranged, and the moving assembly is slidably connected with one sliding rail 42 on each side and can move along the sliding rail 42.

[0034] The limiting assembly is cooperatively connected with the two sliding rails 42, and under the action of the limiting assembly, the moving assembly can be fixed between the two sliding rails 42, and the moving assembly can move relative to the sliding rails 42 after the limiting assembly is operated.

[0035] According to a specific embodiment provided by the present application, the sliding rail 42 extends from the fixed sleeve 2 to the inside of the limiting sleeve 3, and the side of the sliding rail 42 facing the limiting sleeve 3 is an arc-shaped structure matched with the limiting sleeve 3. During installation, the sliding rail 42 can be fixed with the limiting sleeve 3 through fasteners. The moving assembly is slidably connected with the sliding rail 42 on each side, and can move along the sliding rail 42. Under the action of the limiting assembly, the moving assembly can be fixed between the two sliding rails 42, so that the moving assembly can move relative to the sliding rails 42 after the adjusting rod 41 is operated.

[0036] Further, the moving assembly comprises a sliding frame 43, the sliding frame 43 is in an “n” type structure, the sliding frame 43 is arranged in parallel with the sliding rails 42 on both sides and is slidably connected with the sliding rails 42, the detector body 1 is connected to both ends of the sliding frame 43, the adjusting rod 41 is arranged through the upper end of the sliding frame 43 and can move relative to the sliding frame 43.

[0037] According to a specific embodiment provided by the present application, the sliding frame 43 comprises a three-section structure, a middle section and a parallel section vertically extended from the middle section, the parallel section is connected with the slide rail 42, the slide rail 42 is provided with a sliding groove 421 on both sides of the limiting teeth 422, and the sliding frame 43 is connected with the slide rail 42 through the sliding groove 421 and the sliding bar fixed on the parallel section. The inner wall of the parallel section of the sliding frame 43 is provided with a connecting shaft, and the connecting shaft passes through the hole of the detector body 1 to be connected. According to the actual stroke setting, the length of the parallel section of the sliding frame 43 parallel to the slide rail 42 is 2 / 3 of the length of the slide rail 42. In this way, the detector body 1 can have a larger moving distance, and the limiting ring cannot be installed due to the excessive length.

[0038] Further, the limiting assembly comprises two rotating components arranged oppositely, and a reed 431 installed at the lower part of the top end of the sliding frame 43, the adjusting rod 41 penetrates the rear end of the reed 431 and is hinged with the two rotating components, the two rotating components are hingedly installed on the inner wall of the sliding frame 43, and the end of the rotating component penetrates the rear of the sliding frame 43 and cooperates with the slide rail 42, so that the end of the rotating component can act on the slide rail 42 under the action of the reed 431, thereby limiting the movement of the moving assembly, and when the adjusting rod 41 acts reversely on the reed 431, the end of the rotating component can be separated from the corresponding slide rail 42.

[0039] Further, as shown in the figure, Figure 5 Both of the two rotating components comprise a rotating rod 44 and a limiting column 441 hingedly installed at the end of the rotating rod 44, the rotating rods 44 are oppositely arranged to form an "n" type structure, one end of the rotating rod 44 is hingedly connected with the end of the adjusting rod 41, and the two ends of the rotating rod 44 are parallel to each other and arranged on the slide rail 42, the sliding frame 43 is protrusively provided with a connecting lug, the rotating rod 44 is hingedly connected with the sliding frame 43 through the connecting lug, so that the rotating rod 44 can rotate around the hinge point of the sliding frame 43 after the adjusting rod 41 moves.

[0040] According to a specific embodiment provided by the present application, the specific structure of the limiting assembly is provided, the two slide rails 42 are provided with limiting teeth 422 along the length direction, the limiting teeth 422 are located on the opposite side of the slide rail 42, and the limiting column 441 is connected with the limiting teeth 422. The structure of the single rotating rod 44 is an "L" type structure, the adjusting rod 41 is arranged parallel to the slide rail 42, under the action of the pushing force of the reed 431, the rotating rod 44 can drive the one end of the limiting column 441 to be inserted between the limiting teeth 422, so that when the adjusting rod 41 is pulled and the resistance of the reed 431 is overcome, the rotating rod 44 can be rotated, the end of the rotating rod 44 pulls the limiting column 441 to be separated from the limiting teeth 422 through the principle of lever, so that the sliding frame 43 can move relative to the slide rail 42, thereby changing the height of the detector body 1.

[0041] Further, the spring 431 is fixed at both ends of the sliding frame 43, and the spring 431 is located above the detector body 1, the middle part of the spring 431 is bent close to the detector body 1, the middle part of the spring 431 is sleeved on the connecting ring 412 fixed on the adjusting rod 41, and the connecting ring 412 is arranged at one end of the adjusting rod 41 close to the rotating part. Thus, the spring 431 can be deformed after the adjusting rod 41 is operated.

[0042] Further, the adjusting rod 41 is fixed with a connecting head 411, the connecting head 411 is in an overall "n" type structure, the connecting head 411 is provided with a through hole on both sides, and the end of the rotating rod 44 is hinged with the connecting head 411 through the through hole.

[0043] Finally, it should be noted that in the description of the present application, it should be noted that the terms "vertical", "upper", "lower", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0044] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] The above is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, and those skilled in the art can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A concrete performance testing instrument for building engineering, characterized in that: The utility model relates to a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; 2. The construction engineering concrete performance detector according to claim 1, characterized in that: The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; 3. A construction engineering concrete performance detector according to claim 2, characterized in that: The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; 4. The construction engineering concrete performance detector according to claim 3, characterized in that: The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; 5. The construction engineering concrete performance detector according to claim 2 or 4, characterized in that: The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; 6. The construction engineering concrete performance detector according to claim 1 or 2, characterized in that: The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; 7. A construction engineering concrete performance detector according to claim 6, characterized in that: The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected to the side of the limiting sleeve, and the supporting legs are distributed in an array around the limiting sleeve; The utility model discloses a detection instrument, which comprises a detection instrument body, a fixing sleeve and a limiting sleeve, the fixing sleeve is installed at the top of the limiting sleeve, at least two supporting legs are hingedly connected

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