CN217819838U - Concrete resiliometer for road detection - Google Patents

Abstract

The utility model discloses a concrete rebound tester for road detection, which belongs to the technical field of road detection, and aims at the fact that the existing concrete rebound tester is difficult to ensure that the axis of the concrete rebound tester and the test surface of the concrete member are hand-held during detection. Always keep vertical, which affects the detection accuracy and manual cleaning of the test points, which is labor-intensive and also reduces the detection efficiency, including the cylinder sleeve. The top of the cylinder sleeve is opened to slide with the outer wall of the hammer body Adapted sliding holes, two sets of guiding mechanisms for moving and guiding the hammer body are arranged on both sides of the sliding holes, and the bottom of the cylinder sleeve is connected with a cleaning mechanism through bearing rotation; The movement of the main body is used for guidance, and the guidance of the guide mechanism and the cylinder sleeve ensures that the cylinder sleeve and the test rod are perpendicular to the test surface of the concrete component, which improves the accuracy of the detection. By using the cleaning mechanism to clean the detection points in time, the detection accuracy is effectively improved. efficiency.

Description

A concrete rebound tester for road testing

technical field

The utility model belongs to the technical field of road detection, in particular to a concrete resilience meter for road detection.

Background technique

Roads are the basis of transportation, and with the development of road systems, road maintenance is becoming increasingly important. Road testing devices are needed in road maintenance. The concrete rebound tester is an instrument used to test the strength of road surfaces. The basic principle of the rebound tester is to use a tension spring to drive a heavy hammer, and the heavy hammer hits the bullet rod in vertical contact with the concrete surface with constant kinetic energy, so that the local concrete deforms and absorbs part of the energy, and the other part of the energy is converted into the rebound of the heavy hammer Kinetic energy, when all the kinetic energy of the rebound is converted into potential energy, the hammer will bounce back to the maximum distance, and the instrument will display the maximum rebound distance of the hammer as the rebound value.

When using the concrete rebound tester, it is necessary to ensure that the axis of the rebound tester is always perpendicular to the concrete test surface, the force is uniform and slow, the righting is aligned with the test surface, slow advancement, fast reading, etc. The concrete rebound tester is used to test the compressive strength of concrete. It is the most widely used concrete compressive strength non-destructive testing instrument for on-site road testing. When using concrete rebound tester for road strength testing, there are the following deficiencies:

① Existing concrete hammers are usually hand-held to detect concrete. Due to the hand-held operation, it is difficult to ensure that the axis of the concrete hammer is always perpendicular to the test surface of the concrete member, so a large artificial force will be generated during the detection. The error is large, which will affect the final data of the concrete detection.

②When the existing concrete rebound tester detects the road surface, it is necessary to ensure that there are no impurities on the concrete surface that will affect the detection of the concrete rebound tester. This requires the operator to clean up the test points. However, the road surface There are usually multiple detection areas, and multiple test points need to be detected in each test area, and each detection point needs to be manually cleaned by the operator, which is labor-intensive and reduces the detection efficiency.

Therefore, there is a need for a concrete rebound hammer for road testing, which solves the problem that when the existing concrete rebound hammer is detected, it is difficult to ensure that the axis of the concrete rebound hammer is always perpendicular to the test surface of the concrete component, which affects the detection accuracy and accuracy. Manual cleaning of test points is labor-intensive and also reduces the detection efficiency.

Utility model content

The purpose of this utility model is to provide a concrete rebound tester for road detection, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a concrete rebound hammer for road testing, including a cylindrical sleeve, a rebound hammer body and a test rod, and the top end of the cylindrical sleeve is provided with a The sliding hole on the outer wall is slidingly adapted. Two sets of guide mechanisms for moving and guiding the rebounder body are arranged on both sides of the sliding hole. The outer wall of the bottom of the cylindrical sleeve is fixed with a bearing. The cylindrical sleeve The bottom of the cylinder is rotatably connected with a cleaning mechanism through a bearing, and a motor is fixed on the outer wall of the cylinder sleeve, and the output end of the motor is connected in transmission with the cleaning mechanism.

What needs to be explained in the solution is that the guide mechanism includes limit notches set on the top of the cylinder sleeve and located on both sides of the sliding hole, the two limit notches are symmetrically distributed, and the outside of the rebounder body The wall is fixed with guide ribs slidingly adapted to the limiting notches.

It is further worth noting that the cleaning mechanism includes a connecting sleeve that is rotatably connected to the bearing, the outer wall of the connecting sleeve is fixed with a gear ring, the output end of the motor is coaxially fixed with a connecting rod, and the bottom of the connecting rod The end is fixed with a gear engaged with the gear ring, the bottom end of the connecting sleeve is fixed with a rotating sleeve, and the bottom end of the rotating sleeve is fixed with a cleaning brush.

It should be further explained that a push rod is fixed on the top of the hammer body, and a rubber sleeve is covered on the surface of the push rod.

As a preferred implementation manner, balls are rollingly connected to the side of the limiting notch, and there are multiple balls.

As a preferred embodiment, the cross section of the push rod is circular, and the length of the rubber sleeve is equal to the length of the push rod.

Compared with the prior art, the utility model provides a concrete rebound tester for road detection, which at least includes the following beneficial effects:

(1) Drive the guide ribs to slide in the limit slot through the hammer body, and guide the movement of the hammer body, so that the hammer body is always coaxial with the cylinder sleeve, so as to ensure that the test rod is always perpendicular to the concrete The test surface of the component saves the manual operation to make the axis of the rebound hammer body perpendicular to the test surface of the concrete component, avoiding the problem that the axis of the hammer body and the test surface of the concrete component are difficult to ensure that the axis of the hammer body is always perpendicular to the test surface of the concrete component due to manual operation, effectively Reduce the human error caused by tilt during detection and improve the accuracy of detection.

(2) The rotating sleeve drives the cleaning brush to rotate, and the rotating cleaning brush cleans the point to be tested in time, so as to quickly clean the point to be tested, facilitate the next step of detection, reduce the labor intensity of the operator, and effectively improve the efficiency of detection .

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is a schematic diagram of the local structure of the connecting sleeve of the utility model;

Fig. 3 is a schematic diagram of the local structure of the sliding hole of the utility model;

Fig. 4 is a schematic diagram of the enlarged structure at A in Fig. 3;

Fig. 5 is a schematic diagram of a partial structure of the cleaning brush of the present invention.

Among the figure: 1, guiding mechanism; 101, guiding rib; 102, limit notch; 103, ball; 2, cleaning mechanism; 201, gear; 202, gear ring; 203, cleaning brush; 204, rotating sleeve; 3 , Cylinder sleeve; 4, Hammer body; 5, Test rod; 6, Motor; 7, Rubber sleeve; 8, Push rod; 9, Connecting rod; 10, Connecting sleeve; 11, Bearing; 12, Sliding hole.

Detailed ways

Below in conjunction with embodiment the utility model is described further.

In order to make the purposes, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions of the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the utility model. Obviously, the described implementation The example is a part of the embodiments of the utility model, rather than all the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative work belong to The protection scope of the utility model.

The following examples are used to illustrate the utility model, but can not be used to limit the protection scope of the utility model. The conditions in the embodiment can be further adjusted according to the specific conditions, and the simple improvement of the method of the utility model under the premise of the concept of the utility model belongs to the protection scope of the utility model.

Please refer to Figures 1-5. The utility model provides a concrete rebound hammer for road testing, which includes a cylindrical sleeve 3, a rebound hammer body 4 and a test rod 5. The top of the cylindrical sleeve 3 is provided with a 4 The sliding hole 12 on the outer wall is slidably adapted. Two sets of guide mechanisms 1 for moving and guiding the rebounder body 4 are arranged on both sides of the sliding hole 12. The outer wall of the bottom of the cylinder sleeve 3 is fixed with a bearing 11, and the cylinder The bottom of the cover 3 is connected with the cleaning mechanism 2 through the bearing 11, the outer wall of the cylindrical cover 3 is fixed with a motor 6, and the output end of the motor 6 is connected with the cleaning mechanism 2; The hammer body 4 is placed horizontally, the end of the test rod 5 faces the concrete component test surface, the port of the cylinder sleeve 3 is attached to the concrete component test surface, and then the rebound hammer body 4 is pushed evenly with force, The test rod 5 is slowly retracted into the rebound hammer body 4 under force, slowly advanced, and quickly read, and the strength value is obtained. The guide mechanism 1 guides the movement of the rebound hammer body 4. Through the guide mechanism 1 and the cylinder sleeve 3 The guide ensures that the cylinder sleeve 3 and the test rod 5 are perpendicular to the test surface of the concrete component, eliminating the need for manpower to straighten the axis of the hammer body 4 to be perpendicular to the test surface of the concrete component, and avoiding the manual operation that causes the rebound of the hammer body 4 The axis and the test surface of the concrete component are difficult to ensure that they are always vertical, which can effectively reduce the human error caused by the tilt during detection and improve the accuracy of detection. When the test point of the concrete component test surface is dirty, it needs to be cleaned. , before the test, start the motor 6 to work, the output end of the motor 6 drives the cleaning mechanism 2 to work, use the cleaning mechanism 2 to clean the detection point in time, so as to quickly clean the detection point, facilitate the next detection, and effectively improve the detection s efficiency.

As further shown in Fig. 1, Fig. 2 and Fig. 4, it is worth mentioning that the guide mechanism 1 includes a limit notch 102 opened on the top of the cylinder sleeve 3 and located on both sides of the sliding hole 12, two limit grooves The openings 102 are symmetrically distributed, and the outer wall of the rebound instrument body 4 is fixed with a guide rib 101 that is slidingly adapted to the limit notch 102; The hammer body 4, the hammer body 4 drives the guide rib 101 to slide in the limit notch 102, and guides the movement of the hammer body 4, so that the hammer body 4 is always coaxially arranged with the cylinder sleeve 3 , so as to ensure that the test rod 5 is always perpendicular to the test surface of the concrete component, save the manual operation of setting the axis of the hammer body 4 perpendicular to the test surface of the concrete component, and avoid manual operation causing the axis of the hammer body 4 to be perpendicular to the concrete component. It is difficult to ensure that the test surface is always vertical, which can effectively reduce the human error caused by tilt during detection and improve the accuracy of detection.

As further shown in Figures 1, 2 and 3, it is worth mentioning that the cleaning mechanism 2 includes a connecting sleeve 10 that is rotatably connected to the bearing 11, the outer wall of the connecting sleeve 10 is fixed with a gear ring 202, and the output of the motor 6 The connecting rod 9 is fixed coaxially at the ends, and the bottom end of the connecting rod 9 is fixed with a gear 201 meshed with the gear ring 202. The bottom end of the connecting sleeve 10 is fixed with a rotating sleeve 204, and the bottom end of the rotating sleeve 204 is fixed with a cleaning brush. 203; when the test point of the concrete component test surface is dirty, the test point needs to be cleaned. Before the test, the end face of the cleaning brush 203 is attached to the test point to be cleaned, and the motor 6 is started to work. The motor 6 The output end drives the connecting rod 9 to rotate, the connecting rod 9 drives the gear 201 to rotate, the gear 201 drives the gear ring 202 to rotate, the gear ring 202 drives the connecting sleeve 10 to rotate, the connecting sleeve 10 drives the rotating sleeve 204 to rotate, and the rotating sleeve 204 drives the cleaning brush 203 Rotating, the rotating cleaning brush 203 cleans the points to be tested in time, thereby quickly cleaning the points to be tested, facilitating the next step of detection, and effectively improving the efficiency of detection.

This scheme has the following working process: in the road maintenance work, a rebound hammer is needed to detect the strength of the road surface. The end of the cylinder head is facing the test surface of the concrete component, and the end of the cylinder sleeve 3 is attached to the test surface of the concrete component, and then the hammer body 4 is pushed evenly with force, so that the test rod 5 is slowly retracted into the hammer body under force. 4, push slowly, read quickly, and obtain the strength value. The hammer body 4 drives the guide rib 101 to slide in the limit notch 102, and guides the movement of the hammer body 4, so that the hammer body 4 is always Set coaxially with the cylinder sleeve 3, so as to ensure that the test rod 5 is always perpendicular to the test surface of the concrete member. When the test point of the concrete member test surface is dirty, it is necessary to clean the test point. Fit the end face to the detection point to be cleaned, start the motor 6 to work, the output end of the motor 6 drives the connecting rod 9 to rotate, the connecting rod 9 drives the gear 201 to rotate, the gear 201 drives the gear ring 202 to rotate, and the gear ring 202 drives the connecting sleeve 10 rotates, the connecting sleeve 10 drives the rotating sleeve 204 to rotate, and the rotating sleeve 204 drives the cleaning brush 203 to rotate, and the rotating cleaning brush 203 cleans the detection point.

According to the above working process, it can be seen that the guide rib 101 slides in the limit notch 102 to guide the movement of the rebounder body 4, so that the rebounder body 4 is always coaxially arranged with the cylindrical sleeve 3, thereby ensuring that the test rod 5 It is always perpendicular to the test surface of the concrete component, eliminating the need for manpower to make the axis of the hammer body 4 perpendicular to the test surface of the concrete component, and avoiding the manual operation that makes it difficult to ensure that the axis of the hammer body 4 and the test surface of the concrete component are always The problem of maintaining verticality can effectively reduce the human error caused by inclination during detection, and improve the accuracy of detection. The rotating cleaning brush 203 can clean the points to be detected in time, so as to quickly clean the points to be measured, which is convenient for the next step of detection, and effectively improves detection efficiency.

As further shown in Figure 1, it is worth specifying that the top of the hammer body 4 is fixed with a push rod 8, and the surface of the push rod 8 is covered with a rubber sleeve 7; it is convenient to push the rebound hammer by holding the push rod 8. The main body 4 is slowly pressed, and the rubber sleeve 7 provided improves the comfort of the hand.

As further shown in Figure 4, it is worth explaining in detail that balls 103 are rollingly connected to the side of the limiting notch 102, and there are multiple balls 103; The frictional resistance of sliding relative to the limit notch 102 improves the smoothness of the rebounder body 4 when moving.

As further shown in FIG. 2 , it is worth noting that the cross section of the push rod 8 is circular, and the length of the rubber sleeve 7 is equal to the length of the push rod 8 .

To sum up: the guide rib 101 slides in the limit notch 102 to guide the movement of the hammer body 4, so that the hammer body 4 is always coaxially arranged with the cylinder sleeve 3, thereby ensuring that the test rod 5 is always perpendicular to the The test surface of the concrete component saves the manual operation to make the axis of the hammer body 4 perpendicular to the test surface of the concrete component, avoiding the manual operation that makes it difficult to ensure that the axis of the hammer body 4 is always perpendicular to the test surface of the concrete component Problems, effectively reducing the human error caused by tilt during detection, improving the accuracy of detection, and the rotating cleaning brush 203 cleans the points to be detected in time, so as to quickly clean the points to be tested, facilitate the next step of detection, and effectively improve the efficiency of detection , by holding the push rod 8, it is convenient to push the rebounder body 4 to slowly press, the rubber sleeve 7 is provided to improve the comfort of the hand, and the ball 103 is provided to effectively reduce the guide rib 101 and the limit notch 102 Relatively sliding frictional resistance improves the smoothness of the hammer body 4 when it moves.

The motor 6 can be purchased from the market, and the motor 6 is equipped with a power supply, which belongs to mature technology in this field and has been fully disclosed, so it will not be repeated in the description.

Unless otherwise defined, the technical terms or scientific terms used in this utility model should be the usual meanings understood by those with ordinary skill in the field of this utility model, and similar words such as "comprising" or "comprising" used in this utility model It means that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects, and similar words such as "connect" or "connected" are not limited to physical or Mechanical connections can also include electrical connections, whether direct or indirect, "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships, when the absolute After the position changes, the relative positional relationship may also change accordingly.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a road detection uses concrete resiliometer, includes cylinder cover (3), resiliometer body (4) and test bar (5), its characterized in that, slide opening (12) with the sliding adaptation of resiliometer body (4) lateral wall are seted up on the top of cylinder cover (3), the both sides of slide opening (12) are provided with two sets of guiding mechanism (1) that carry out the removal direction to resiliometer body (4), the bottom lateral wall of cylinder cover (3) is fixed with bearing (11), the bottom of cylinder cover (3) is rotated through bearing (11) and is connected with clean mechanism (2), the lateral wall of cylinder cover (3) is fixed with motor (6), the output and the transmission of clean mechanism (2) of motor (6) are connected.

2. The concrete rebound instrument for road detection according to claim 1, wherein the guide mechanism (1) comprises limiting notches (102) which are arranged at the top end of the cylinder sleeve (3) and located at two sides of the slide hole (12), the two limiting notches (102) are symmetrically distributed, and guide ribs (101) which are in sliding fit with the limiting notches (102) are fixed on the outer side wall of the rebound instrument body (4).

3. The concrete rebound device for road detection according to claim 2, wherein the cleaning mechanism (2) comprises a connecting sleeve (10) rotatably connected with the bearing (11), a toothed ring (202) is fixed on the outer side wall of the connecting sleeve (10), a connecting rod (9) is coaxially fixed on the output end of the motor (6), a gear (201) meshed with the toothed ring (202) and connected with the bottom end of the connecting rod (9) is fixed on the bottom end of the connecting sleeve (10), a rotating sleeve (204) is fixed on the bottom end of the connecting sleeve (10), and a cleaning brush (203) is fixed on the bottom end of the rotating sleeve (204).

4. The concrete rebound instrument for road detection according to claim 1, wherein a push rod (8) is fixed at the top end of the rebound instrument body (4), and a rubber sleeve (7) is sleeved on the surface of the push rod (8).

5. The concrete rebound instrument for road detection as claimed in claim 2, wherein a plurality of balls (103) are arranged on the side surface of the limiting notch (102) in a rolling manner, and the balls (103) are arranged.

6. The concrete rebound apparatus for road detection according to claim 4, wherein the push rod (8) is circular in cross section, and the rubber sleeve (7) has a length equal to that of the push rod (8).

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