A measuring device for road maintenance and repair

Abstract

The present invention relates to the technical field of measuring equipment, and specifically to a measuring device for road maintenance and repair, comprising a rod body and a rod head, wherein the rod head is rotatably mounted at the lower end of the rod body and is used to be inserted into the interior of a pipe, and a contactor is provided inside the rod head; an opening is provided on the outer end surface of the rod head, and the contactor includes a push rod that can be rotated out from the opening and abut against the inner wall of the pipe, and an identification rod that can be guided and slid along the axis direction of the rod body is provided on the upper part of the push rod, and when the push rod rotates inwardly or outwardly, the identification rod slides upwardly or downward synchronously. The present invention provides a rotatable rod head at the front end of the rod body, and provides a push rod in the rod head that can abut against the inner wall of the pipe to be inspected, and through the rotation of the push rod, different action relationships can be generated with the protrusions or depressions of the inner wall of the pipe, thereby allowing the identification rod to perform corresponding actions, so that the situation inside the pipe can be clearly understood.

Description

Technical Field

[0001] The invention relates to the technical field of measuring equipment, and in particular to a measuring device for road maintenance and repair. Background Art

[0002] In the maintenance and repair of urban roads, a very important step is to inspect the pipes near the roads or buildings to check whether there are impurities adhering to the inner wall or dents caused by cracks. If these defects are not dealt with in time, the pipes will become blocked and disabled.

[0003] The prior art discloses a Chinese invention patent with the announcement number CN110887454B and the patent name of a road pipeline detection structure and detection method thereof, which specifically discloses a U-shaped frame, a pair of lifting devices installed at the bottom of the frame and used to adjust the height of the frame and distributed along the X direction, a detection frame installed at the top of the frame through a clamping device, a driving device installed on the frame and frictionally transmitted with the detection frame and used to drive the detection frame to rotate, and a detection device installed on the detection frame and used to detect pipeline cracks. The detection frame includes a frame body with adjustable structure, an adjustment component installed on the frame and used to adjust the central angle of the frame body; the driving device includes a belt drive component, and a friction component installed on the belt drive component and used to frictionally transmit with the frame body.

[0004] The above scheme provides a detection structure specifically for road pipelines, which solves the problem that existing pipeline crack detection relies on manual labor, is time-consuming and labor-intensive, has low efficiency and low accuracy.

[0005] However, due to the large size of the above-mentioned equipment and the complicated operation steps, the efficiency of use in a large number of pipeline groups is very low, and there are also great limitations on the usage scenarios.

[0006] The prior art also discloses a Chinese invention patent with announcement number CN117470076B and patent name "A pipeline surface depression detection device", which specifically discloses a center rod, on which two support plates are sleeved and fixedly connected, and the support plates are made of soft material. The circumferential surface of the center rod between the two support plates is evenly provided with a plurality of detection components, and the detection components include a connecting plate fixedly connected to the surface of the center rod, one end of the connecting plate is provided with a front detection component, and the other end side wall of the connecting plate is provided with a rear detection component.

[0007] The above scheme can extend the detection device into the interior of the pipeline during the test, so that the circumferential side wall of the support plate fits against the inner wall of the pipeline, and the device is pulled to move in the pipeline, so as to detect the depression of the pipeline through the detection component. The front detection part and the rear detection part are arranged alternately front and back to prevent the adjacent front detection parts from interfering with the rear detection parts. The front detection parts and the rear detection parts are distributed 360 degrees around the central rod to perform all-round detection of the pipeline, thereby improving the detection accuracy and efficiency.

[0008] However, in the actual detection process, the deformation of the pipeline will not only cause depressions, but also form some bulges at the depressions. At the same time, the soil outside the pipeline and the cracks in the brick-concrete structure will cause the pipeline to deform and form bulges. This bulge will cause the inner diameter of the pipeline to become smaller and the transportation capacity to drop significantly. Although the above scheme can detect cracks or depressions in the pipeline, it cannot detect bulges in the pipeline.

[0009] Therefore, a measuring device for road maintenance and repair is proposed to solve the above-mentioned problems. Summary of the invention

[0010] Technical issues solved

[0011] In view of the above-mentioned shortcomings of the prior art, the present invention provides a measuring device for road maintenance and repair, which can effectively solve the problem of poor measuring effect of pipeline measuring equipment in the prior art.

[0012] Technical Solution

[0013] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0014] The present invention provides a measuring device for road maintenance and repair, comprising a rod body and a rod head, wherein the rod body comprises a hand-held part which is hollow inside; the rod head is rotatably mounted on the lower end of the rod body and is used for being inserted into the interior of a pipe, and a contactor is arranged inside the rod head; wherein an opening is arranged on the outer end surface of the rod head, and the contactor comprises a push rod which can be rotated out from the opening and abut against the inner wall of the pipe, and an identification rod which can be guided and slid along the axis direction of the rod body is arranged on the upper part of the push rod, and when the push rod rotates inwardly or outwardly, the identification rod slides upwardly or downward synchronously.

[0015] Furthermore, the rod head is detachably mounted on the rod body.

[0016] Furthermore, at least one opening is provided on the outer end surface of the rod head, and there are spacing portions between adjacent openings.

[0017] Furthermore, the contactor includes a slider which is slidably mounted on the rod head, the identification rod is slidably mounted on the slider, the push rod is elastically hinged on the slider, and a groove for rotating the push rod is provided on the side end surface of the slider.

[0018] Furthermore, grooves are provided on both side end faces of the slider, a limit pin is vertically provided on the outer side of the lower end of the identification rod and passes through the groove, and the thickness of the identification rod passing through the upper part of the slider is increased and the thickness of the identification rod after the increased thickness is greater than the thickness of the part where the identification rod passes through.

[0019] Furthermore, a rotating ball is fixed to the head of one end of the support rod passing through the slot.

[0020] Furthermore, a first fixing hole engaged with the rotating ball is concavely provided on the inner end surface of the spacer.

[0021] Furthermore, second fixing holes engaged with the rotating ball are respectively provided on both sides of the opening, and a guide groove for the rotating ball to roll therein is provided between the second fixing hole and the opening.

[0022] Furthermore, a scale groove is provided on the outer end surface of the hand-held part, and the upward end of the marking rod passes through the rod body through the inner cavity of the rod body.

[0023] Furthermore, a plurality of sensors arranged along the axis of the rod body are arranged in the internal cavity of the handheld part, the upward end of the identification rod passes through the rod body through the internal cavity of the rod body, and the outer end thereof is provided with a sensing unit cooperating with the sensor.

[0024] Beneficial Effects

[0025] Compared with the known public technology, the technical solution provided by the present invention has the following beneficial effects:

[0026] The present invention provides a rotatable rod head at the front end of the rod body, and provides a resisting rod in the rod head that can resist the inner wall of the pipeline to be inspected. The rotation of the resisting rod can produce different action relationships with the protrusions or depressions on the inner wall of the pipeline, thereby allowing the identification rod to perform corresponding actions, so that the situation in the pipeline can be clearly understood. The product is easy to operate, and a single person can complete the entire inspection operation, thereby improving the measurement efficiency of pipelines in road maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 This is a schematic diagram of the overall structure of the measuring device in an embodiment of the present invention;

[0029] Figure 2 It is a front view schematic diagram of the measuring structure in the embodiment of the present invention in the measuring state in the pipeline;

[0030] Figure 3 It is a schematic diagram of a local cross-sectional structure of a measurement structure in an embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the contactor structure in an embodiment of the present invention;

[0032] Figure 5 This is an exploded schematic diagram of a measurement structure in an embodiment of the present invention;

[0033] Figure 6 is a schematic diagram of a partial cross-sectional structure of a club head in an embodiment of the present invention;

[0034] Figure 7 It is a schematic diagram of the structure in which the stopper rod and the opening are in a misaligned state in an embodiment of the present invention.

[0035] The numbers in the figure represent: 1. rod body; 10. hand-held part; 101. scale groove; 11. fixed plate; 2. rod head; 21. opening; 22. spacer; 221. first fixing hole; 222. second fixing hole; 223. guide groove; 3. contactor; 31. push rod; 311. rotating ball; 32. identification rod; 321. limit pin; 33. slider; 34. slot. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The present invention will be further described below in conjunction with the embodiments.

[0038] Example:

[0039] This embodiment provides a measuring device for road maintenance and repair. Figure 1-7 The slicer in this embodiment mainly includes two parts: a rod body 1 and a rod head 2.

[0040] When in use, an operator holds the rod body 1 and extends the rod head 2 toward the gap or the inside of the pipe to be tested.

[0041] In this embodiment, the rod head 2 is rotatably mounted on the lower end of the rod body 1 and is used to be inserted into the pipe. It should be noted that the measurement method in this embodiment is to measure from bottom to top. The device is completely immersed in the pipe in advance and the measurement is started from bottom to top.

[0042] A contactor 3 is provided inside the rod head 2. After the rod head 2 is inserted into the pipe, the contactor 3 and the inner wall of the pipe are used to touch to determine whether there is a depression or a bulge on the inner wall of the pipe. In addition, in this embodiment, the degree of the depression or bulge can also be detected.

[0043] Specifically, an opening 21 is provided on the outer end surface of the rod head 2, and the contactor 3 includes a stopper 31 that can be rotated out from the opening 21 and abut against the inner wall of the pipe. When the rod head 2 is extended into the pipe, one end of the stopper 31 will abut against the inner wall of the pipe.

[0044] When a depression appears on the inner wall of the pipe, the stopper 31 will continue to rotate toward the depression, that is, rotate outwards;

[0045] When a bulge appears on the inner wall of the pipe, the rotation angle of the stopper 31 will become smaller, that is, it will rotate inward.

[0046] An identification rod 32 is provided at the upper part of the push rod 31 and can be guided to slide along the axial direction of the rod body 1. When the push rod 31 rotates inward or outward, the identification rod 32 will be resisted by the push rod 31, and then the identification rod 32 will be pushed by one end of the push rod 31, and then slide upward or downward (in the direction of vertical downward insertion of the rod head 2) synchronously with the rotation of the push rod 31.

[0047] It should be noted that in this embodiment, the lower end of the identification rod 32 is an inclined surface, and the upper end of the abutting rod 31 is tilted upward and always abuts against the lower end inclined surface of the identification rod 32 .

[0048] The rod body 1 includes a handle portion 10 which is hollow inside, and the other end of the marking rod 32 passes through the handle portion 10. Two observation methods are proposed in this embodiment.

[0049] The first method uses a method of observing the scale groove 101. A scale groove 101 is provided on the outer end surface of the hand-held portion 10. The upward end of the identification rod 32 passes through the rod body 1 through the internal cavity of the rod body 1. The movement of the identification rod 32 in the scale groove 101 can be observed by the naked eye to determine whether the identification rod 32 moves back and forth. When the identification rod 32 passes through the rod body 1, it means that the identification rod 32 is pushed up, so that it can be determined that the support rod 31 encounters a depression or crack on the inner wall of the pipe at this time, and the size of the protrusion is determined according to the amplitude of the upward movement. Similarly, when the identification rod 32 moves downward, it proves that the other end of the support rod 31 is in contact with the protrusion on the inner wall of the pipe.

[0050] Another observation method is to use a sensor. A sensing unit is set on the identification rod 32, and a plurality of sensors arranged along the axis of the rod body 1 are set in the internal cavity of the hand-held part 10. When the identification rod 32 passes the corresponding sensor, the dynamic changes of the identification rod 32 can be reminded by one or a combination of light flashing, sound reminder, etc.

[0051] That is, the upward end of the identification rod 32 passes through the rod body 1 through the internal cavity of the rod body 1, and the outer end thereof is provided with a sensing unit that matches the sensor.

[0052] In this embodiment, the rod head 2 is detachably mounted on the rod body 1, and the size of the rod head 2 can be adjusted according to the inner diameter of the pipe.

[0053] Specifically, the bottom end of the rod body 1 is provided with two symmetrically distributed L-shaped slots, and the rod head 2 is stuck in the slots and can be detachably fixed on the rod body 1 .

[0054] In order to facilitate the detection of different depths of the pipeline, at least one opening 21 is provided on the outer end surface of the rod head 2 . Two openings 21 are shown in the drawings of this embodiment, and a spacing portion 22 is provided between adjacent openings 21 .

[0055] When in use, detection can be first performed along the pipeline axis direction, and detection in different circumferential directions can be achieved by rotating the entire rod head 2.

[0056] In this embodiment, the contactor 3 includes a slider 33 that is slidably mounted on the rod head 2, and the identification rod 32 is slidably mounted on the slider 33. It should be noted that the cross-section of the slider 33 is a cross shape as a whole, and a fixed disk 11 is rotatably mounted on the lower end of the rod body 1, and a slot for fixing the rod head 2 is provided on the fixed disk 11. In addition, a cross groove corresponding to the shape of the slider 33 is provided in the middle part of the fixed disk 11 to cooperate with its guide, and the identification rod 32 is ruler-shaped in this embodiment, and is slidably mounted in the slider 33.

[0057] It is worth mentioning that a circular angle scale is provided on the rod body 1 , and an indicator mark is provided on the fixed disk 11 , so that the rotation angle of the fixed disk 11 can be determined.

[0058] The push rod 31 is elastically hinged on the slider 33. When not in use, the entire contactor 3 can be pushed away from the opening 21. For example, one end of the push rod 31 can be pressed against the spacer 22 to prevent resistance when the rod head 2 rotates, thereby facilitating the rotation of the entire rod head 2. When the angle is adjusted or use begins, the slider 33 can be moved down or up by pushing the identification rod 32 until the push rod 31 is rotated out of the opening 21.

[0059] Furthermore, in this embodiment, a slot 34 for rotating the push rod 31 is provided on the side end surface of the slider 33 of the contactor 3 , and the slot 34 is provided through the bottom end surface of the slider 33 .

[0060] A groove 34 is also formed on the other end surface of the slider 33 , and the groove 34 prevents the marking rod 32 from being separated from the slider 33 .

[0061] Specifically, when it is necessary to move the identification rod 32 upward, it will have a maximum value. When the identification rod 32 moves up to the maximum value, it cannot continue to rise. A limit pin 321 passing through the slot 34 is vertically provided on the outer side of the lower end of the identification rod 32. Similarly, the identification rod 32 also has a maximum value when moving downward. In this embodiment, the thickness of the identification rod 32 passing through the upper part of the slider 33 is increased, and the thickness of the identification rod 32 after the increased thickness is greater than the thickness of the part where the identification rod 32 passes through.

[0062] That is, the portion of the identification rod 32 where the thickness is increased cannot move downward from the portion where the identification rod 32 passes through, thereby limiting the downward movement of the identification rod 32 .

[0063] In addition, in order to improve the measurement accuracy, a rotating ball 311 is fixed to the head of one end of the support rod 31 that passes through the slot 34. The rotating ball 311 can make good contact with the inner wall of the pipe. Even if it touches some irregular protrusions that are difficult to pass through, the spherical rolling makes it easier for the rotating ball 311 to roll and avoid obstruction.

[0064] In actual use, there will be a situation where the rod head 2 needs to be rotated, that is, when the measuring circumferential angle needs to be adjusted or the measuring height needs to be changed and the rod head 2 needs to be moved, since the push rod 31 always contacts the inner wall of the pipe, there will be a certain resistance when the rod head 2 is moved due to the elasticity and friction. Therefore, at this time, the push rod 31 needs to be "retracted" into the rod head 2. One way is to pull the marking rod 32 upward until the marking rod 32 reaches the maximum rising height. At this time, the entire slider 33 will be guided upward to slide until the push rod 31 is separated from the uppermost opening 21. However, this will cause the height of the previous measurement to be lost, resulting in the possibility of overlap and inaccuracy in the measurement data.

[0065] To this end, this embodiment proposes two solutions. The first is to provide a first fixing hole 221 on the inner end surface of the adjacent spacer 22 to engage with the rotating ball 311, thereby reducing the pulling-up height of the identification rod 32 and avoiding as much as possible that the identification rod 32 rises too high and causes the initial measuring height to be lost.

[0066] The second method is based on the unique fixing method of the club head 2. In this embodiment, a clamping plate 24 is provided on both sides of the club head 2, and a rubber pad 241 is provided on both sides of the end of the clamping plate 24 away from the rod body 1. The rubber pad 241 is inserted into the L-shaped clamping groove to achieve tight fixation.

[0067] Pinch the fixing plate and rotate the rod head 2 with force to allow the rubber pad 241 to rotate to a certain extent in the L-shaped slot. After the rod head 2 rotates slightly, the rod head 2 and the push rod 31 are misaligned, which will cause the push rod 31 to retract and rotate toward one side of the opening 21. The two sides of the opening 21 are respectively provided with second fixing holes 222 that engage with the rotating ball 311. When the rotating ball 311 is inserted into the second fixing hole 222, the rod body 1 is rotated to realize the rotation of the entire measuring device. When it is necessary to continue measuring, pinch the fixing plate and rotate the rod head 2 in the opposite direction to disengage the rotating ball 311 from the second fixing hole 222. The rotating ball 311 also contacts the inner wall of the pipe as the push rod 31 is rotated out.

[0068] In order to reduce the resistance rod 31 from being screwed into the side of the opening 21, a guide groove 223 for the rotating ball 311 to roll inside is provided between the second fixing hole 222 and the opening 21 in this embodiment to avoid changes in the trajectory of the rotating ball 311 and reduce friction, making it easier to screw into the second fixing hole 222.

[0069] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A measuring device for road maintenance and repair, characterized in that: include: A rod body (1), the rod body (1) comprising a handle portion (10) having a hollow interior; a circular angle scale is provided on the rod body (1), and an indicator mark is provided on the fixed disk (11), so that the rotation angle of the fixed disk (11) can be determined; A rod head (2), the rod head (2) being rotatably mounted on the lower end of the rod body (1) and being used for being inserted into the interior of the pipe, and a contactor (3) being provided inside the rod head (2); The outer end surface of the rod head (2) is provided with an opening (21), the contactor (3) comprises a stopper (31) which can be rotated out of the opening (21) and abut against the inner wall of the pipe, the upper portion of the stopper (31) is provided with a marking rod (32) which can be guided and slid along the axis direction of the rod body (1), and when the stopper (31) is rotated inwardly or outwardly, the marking rod (32) slides upwardly or downwardly synchronously; The outer end surface of the rod head (2) is provided with at least one opening (21), and there are spacers (22) between adjacent openings (21); The contactor (3) includes a guide slide (33) mounted on the rod head (2), and a groove (34) is provided on the side end surface of the slider (33) for rotating the rod (31); The head of the stop rod (31) passing through the slot (34) is fixed with a rotating ball (311); The inner end surface of the spacer (22) is provided with a first fixing hole (221) which engages with the rotating ball (311); Second fixing holes (222) engaged with the rotating ball (311) are respectively provided on both sides of the opening (21), and a guide groove (223) for the rotating ball (311) to roll therein is provided between the second fixing hole (222) and the opening (21).

2. A measuring device for road maintenance and repair according to claim 1, characterized in that: The rod head (2) is detachably mounted on the rod body (1).

3. A measuring device for road maintenance and repair according to claim 2, characterized in that: The identification rod (32) is installed on the slider (33) in a guiding and sliding manner, and the support rod (31) is elastically hinged on the slider (33).

4. A measuring device for road maintenance and repair according to claim 3, characterized in that: The slider (33) has slots (34) formed on both side end surfaces, a stop pin (321) is vertically provided on the outer side of the lower end of the identification rod (32) and passes through the slot (34), and the thickness of the identification rod (32) passing through the upper part of the slider (33) increases, and the thickness of the identification rod (32) after the thickness is increased is greater than the thickness of the part where the identification rod (32) passes through.

5. A road maintenance and repair measuring device according to any one of claims 1 to 4, characterized in that: A scale groove (101) is provided on the outer end surface of the hand-held portion (10), and the upward end of the marking rod (32) passes through the inner cavity of the rod body (1) and out of the rod body (1).

6. A road maintenance and repair measuring device according to any one of claims 1 to 4, characterized in that: A plurality of sensors arranged along the axis of the rod body (1) are arranged in the internal cavity of the handheld portion (10); an upward end of the identification rod (32) passes through the internal cavity of the rod body (1) and out of the rod body (1); and an induction unit cooperating with the sensor is arranged at the outer end thereof.

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