Road and bridge concrete detection device

Abstract

The utility model relates to a road and bridge concrete detection device. The road and bridge concrete detection device comprises a support and a sheath which is vertically arranged on the support in a sliding manner, the striker is fixedly arranged on the protective sleeve, the impact block is arranged on the protective sleeve in a sliding mode, and a force application spring is connected between the impact block and the protective sleeve; the displacement sensor and the pulling and holding assembly are arranged on the sheath, the displacement sensor acts on an impact block, and the impact block is stressed towards one side under the action of the pulling and holding assembly. According to the utility model, through the cooperation of the sheath, the striker, the impact block and other structures, the strength detection effect is realized, through the action of the pulling assembly, no manual cooperation is needed in the detection process, and through the sliding combination of the support and the sheath, no manual support is needed in the working process of the whole device, and compared with the prior art, the strength detection effect is greatly improved. When the device is used for detecting the road surface, the physical strength of people does not need to be consumed too much, so that the detection process can be better facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of pavement construction detection equipment, and particularly relates to a road and bridge concrete detection device. Background Art

[0002] After the construction of the roadbed and bridge foundation is completed, it is usually necessary to detect the strength of the concrete structure. At present, the detection methods used include core drilling detection or rebound method detection. Among them, the rebound method is a more commonly used one. It will not damage the concrete structure during detection, so it is widely used in conventional grade highways and bridge foundations.

[0003] The detection process of the rebound method is mainly carried out by a rebound detector. The rebound detector needs to be held by hand, and it is necessary to ensure that the striker at the end of the instrument is in a state close to perpendicular to the detection base surface, so as to detect the maximum moving distance of the impact block when it rebounds through the internal displacement sensor to judge the strength of the concrete. The inventor believes that there are certain disadvantages in the use of this instrument at present. The pressure spring inside the instrument usually has a certain force. When pressing down the instrument, it has certain requirements for the physical strength of the user, and during the use process, the user needs to bend down, and the long-term detection process is likely to cause fatigue to the user. Summary of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and title of the specification of this application, to avoid obscuring the purpose of this part, the abstract, and the title of the utility model. However, such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the following technical problems in the prior art: when the current rebound detector is in use, since the user needs to apply force during use, and the holding direction and position of the instrument need to cooperate with the road surface, it has certain requirements for the physical strength of the user. To solve this technical problem, the utility model provides the following technical solutions:

[0006] A road and bridge concrete detection device, comprising:

[0007] A support and a sheath vertically slidably arranged on the support;

[0008] A striker fixedly arranged on the sheath and an impact block slidably arranged on the sheath. A force application spring is connected between the impact block and the sheath;

[0009] A displacement sensor and a pulling component arranged on the sheath. The displacement sensor acts on the impact block, and the impact block is stressed towards one side under the action of the pulling component.

[0010] As a preferred technical solution of a road and bridge concrete detection device, the pulling component includes a lead screw rotatably arranged on the sheath, and an attracting block slidably connected to the sheath, which is magnetically matched with the impact block and meshed with the lead screw, and a power element is arranged on the lead screw.

[0011] As a preferred technical solution of a road and bridge concrete detection device, one end of the lead screw is rotatably connected to the sheath, and both the impact block and the attracting block are of a through structure at both ends, and form a loop around the lead screw when moving.

[0012] As a preferred technical solution of a road and bridge concrete detection device, a chute is constructed on the sheath, and both the impact block and the attracting block are slidably matched with the chute.

[0013] As a preferred technical solution of a road and bridge concrete detection device, a limiting end is constructed on the sheath, and when the impact block moves away from the firing pin, its movement is restricted by the limiting end.

[0014] As a preferred technical solution of a road and bridge concrete detection device, a plurality of sliding sleeves are fixedly connected to the sheath, and columns respectively slidably matched with the plurality of sliding sleeves are fixedly arranged on the support.

[0015] As a preferred technical solution of a road and bridge concrete detection device, a plurality of moving wheels are arranged on the support.

[0016] The beneficial effects of the road and bridge concrete detection device provided by the present utility model are as follows: Through the cooperation of structures such as the sheath, the firing pin and the impact block, the strength detection effect is realized, and through the action of the pulling component, it is realized that no manual cooperation is required during the detection process, and through the sliding combination of the support and the sheath, it is realized that no manual support is required when the whole device works. Compared with the prior art, when this device is used for road surface detection work, it does not consume too much human physical strength, so as to be more conducive to the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings according to these drawings without creative efforts. Among them:

[0018] Figure 1 is a three-dimensional view of the present utility model.

[0019] Figure 2 is another three-dimensional view of the present utility model.

[0020] Figure 3 This is a schematic diagram of the internal structure of the sheath in the present utility model.

[0021] Figure 4 This is a schematic diagram of the installation of the suction block in the sheath in the present utility model.

[0022] Reference numerals: 1, support; 2, sheath; 3, firing pin; 4, impact block; 5, biasing spring; 6, holding assembly; 601, lead screw; 602, suction block; 7, power element; 8, chute; 9, limiting end; 10, sliding sleeve; 11, strut; 12, moving wheel. Detailed implementation manners

[0023] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific implementation manners of the present utility model will be given in conjunction with the accompanying drawings of the specification.

[0024] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0025] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present utility model. The "in one embodiment" that appears in different places in this specification does not all refer to the same embodiment, nor is it a separate or alternative embodiment that mutually excludes other embodiments.

[0026] Furthermore, the present utility model is described in detail in conjunction with the schematic diagrams. When detailing the embodiments of the present utility model, for the sake of convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally not in accordance with the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0027] Referring to Figures 1-3 , one embodiment of the present utility model provides a road and bridge concrete detection device, including the following parts:

[0028] A support 1 and a sheath 2 vertically slidably disposed on the support 1, and the support 1 can move to any position on the ground;

[0029] A firing pin 3 fixedly disposed on the sheath 2 and an impact block 4 slidably disposed on the sheath 2, the firing pin 3 is used to contact the roadbed surface, and a biasing spring 5 is connected between the impact block 4 and the sheath 2 to keep the impact block 4 in contact with the firing pin 3 in the normal state;

[0030] A displacement sensor and a pulling component 6 are provided on the sheath 2. The displacement sensor is used to detect the displacement distance when the impact block 4 rebounds on the firing pin 3, and its function is the same as that of the prior art. The structure thereof is not shown in the figure. The function of the pulling component 6 is to make the impact block 4 receive a force toward the side away from the firing pin 3, so as to move;

[0031] Based on the above, when the device detects the strength of the roadbed surface, the support 1 is placed on the base layer of the roadbed or bridge to be detected. Through the vertical free sliding connection, the overall structure of the sheath 2 and the firing pin 3 makes the bottom of the firing pin 3 always contact the base surface under the action of gravity and maintain a relatively vertical state on the base surface. Through the action of the pulling component 6, the impact block 4 slides upward. When reaching the predetermined position, the impact block 4 breaks away from the pulling force of the pulling component 6 and then slides downward for reset under the action of the spring, so as to impact the firing pin 3 and rebound. Then, the rebound degree is detected by the displacement sensor to obtain the concrete strength of the current base surface position. During the detection process of the device, compared with the prior art, when detecting, the user does not need to apply pressing force to it, and when maintaining the position on the base surface, the user does not need to bend down to support it, thus reducing the fatigue strength of the user.

[0032] Further, referring to Figure 3 , the pulling component 6 includes a lead screw 601 rotatably provided on the sheath 2, and an attracting block 602 slidably connected to the sheath 2. Its sliding direction is the same as the length direction of the lead screw 601, and it forms a magnetic attraction fit with the impact block 4 and meshes with the lead screw 601. A power element 7 is arranged on the lead screw 601; when controlling the movement of the impact block 4, the lead screw 601 rotates, thereby driving the attracting block 602 to move. In the initial state, the impact block 4 is connected to the attracting block 602 through magnetic attraction and thus moves synchronously with the attracting block 602. When reaching a certain position, since the biasing spring 5 is stretched to a certain degree of the pulling force on the impact block 4, and this force is greater than the magnetic attraction force, the attracting block 602 is separated from the impact block 4. The attracting block 602 continues to move, while the impact block 4 moves for reset, so as to impact the firing pin 3 to complete the working process of the impact block 4. Through the action of the lead screw 601, the movement control process of the attracting block 602 is simple, and it can maintain uniform and stable movement. The lead screw 601 can be a unidirectional lead screw or a reciprocating lead screw. The structure of the lead screw 601 shown in the figure is a reciprocating lead screw, which can be used as a reference; the power element 7 can be a driving motor, which is fixed on the sheath 2 and the output end is connected to the lead screw 601; for the magnetic force setting between the attracting block 602 and the impact block 4, for example, permanent magnets can be buried inside the two to achieve it, or the two can be directly magnetized during production.

[0033] Further, see Figure 3 Regarding the rotational installation method of the screw rod 601 on the sleeve 2, one end of the screw rod 601 is rotationally connected to the sleeve 2, so as to achieve a rotation effect on the sleeve 2, so that the other end of the sleeve 2 can be freely suspended, and the impact block 4 and the attraction block 602 are both through-type structures at both ends. During the movement, they can be looped around the screw rod 601 in the air, thereby reducing the space occupied, so as to further improve the utilization effect of the space, so that the volume of the sleeve 2 can be controlled, thereby improving the compactness of the entire device.

[0034] Further, see Figure 4 The sleeve 2 is provided with a slide groove 8, and the impact block 4 and the attraction block 602 are both slidably matched with the slide groove 8, so that the slide groove 8 can realize a stable sliding process of the two on the sleeve 2; Figure 4 The figure shows the cooperation mode between the attraction block 602 and the slide groove 8, which is used as a reference. The cooperation mode between the impact block 4 and the slide groove 8 is the same.

[0035] Further, see Figure 3 A limiting end 9 is also constructed on the sleeve 2. When the impact block 4 moves in a direction away from the striker 3 during operation, its movement is limited by the limiting end 9, thereby breaking free from the magnetic attraction and separating from the attraction block 602 at this point, so that the maximum range of movement of the impact block 4 each time it accumulates force can be accurately controlled at a predetermined position.

[0036] Further, see Figure 1 The sleeve 2 is fixedly connected with a plurality of sliding sleeves 10, and the support 1 is fixedly provided with pillars 11 which are respectively slidably matched with the plurality of sliding sleeves 10; through the cooperation between the plurality of pairs of pillars 11 and the sliding sleeves 10, the stability between the sleeve 2 and the support 1 during vertical movement can be further improved.

[0037] Further, see Figure 1 and Figure 2 The support 1 is provided with a plurality of moving wheels 12, and the moving wheels 12 can adopt a self-locking universal wheel structure, so as to facilitate the movement of the support 1 on the base surface, and also facilitate position locking. In addition, some components such as handles can also be fixedly configured on the support 1 accordingly, so as to further facilitate the user to control its movement process on the base surface, so that when moving between multiple detection points with a close distance, the handle can be pushed, thereby further improving the practical effect of the device.

[0038] It should be understood that, in the development of any actual implementation, such as in any engineering or design project, a large number of specific implementation decisions can be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be routine work in design, manufacturing, and production.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A road and bridge concrete detection device, characterized in that: Comprising: A support (1) and a sheath (2) vertically slidably arranged on the support (1); A firing pin (3) fixedly arranged on the sheath (2) and an impact block (4) slidably arranged on the sheath (2), with a biasing spring (5) connected between the impact block (4) and the sheath (2); A displacement sensor and a pulling component (6) arranged on the sheath (2), the displacement sensor acting on the impact block (4), and the impact block (4) being forced towards one side under the action of the pulling component (6).

2. The road and bridge concrete detection device according to claim 1, characterized in that: The pulling component (6) includes a lead screw (601) rotatably arranged on the sheath (2) and an attracting block (602) slidably connected to the sheath (2), which is magnetically coupled with the impact block (4) and meshes with the lead screw (601), and a power element (7) is arranged on the lead screw (601).

3. The road and bridge concrete detection device according to claim 2, characterized in that: One end of the lead screw (601) is rotatably connected to the sheath (2), and both the impact block (4) and the attracting block (602) are of a through - both - ends structure, and form a loop around the lead screw (601) when moving.

4. The road and bridge concrete detection device according to claim 2, characterized in that: A chute (8) is formed on the sheath (2), and both the impact block (4) and the attracting block (602) are slidably engaged with the chute (8).

5. The road and bridge concrete detection device according to claim 1, wherein: A limiting end (9) is formed on the sheath (2), and the movement of the impact block (4) towards the direction away from the firing pin (3) is restricted by the limiting end (9).

6. The road and bridge concrete detection device according to claim 1, wherein: A plurality of sliding sleeves (10) are fixedly connected to the sheath (2), and support columns (11) respectively slidably engaged with the plurality of sliding sleeves (10) are fixedly arranged on the support (1).

7. The road and bridge concrete detection device according to claim 1, characterized in that: A plurality of moving wheels (12) are arranged on the support (1).

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