Novel building structure strength detection device

Abstract

The utility model discloses a novel building structure strength detection device, which relates to the technical field of building structure strength detection, and comprises a rebound apparatus, the rebound apparatus comprises an ejector rod, one side of the side wall of the rebound apparatus close to the ejector rod is fixedly connected with a fixed cover, the side wall of the fixed cover is provided with a plurality of notches at equal intervals along the circumferential direction, and the notches are communicated with the ejector rod. The width of the end, away from the ejector rod, of the notch is increased relative to the width of the end, close to the ejector rod, of the notch, a restraining piece is installed on the side, close to the ejector rod, in a cavity of the fixed cover and comprises an annular plate perpendicular to the ejector rod and a rubber block clamped to the fixed cover, and the annular plate is fixed to the side wall of the end of the ejector rod. And the rubber blocks are connected to the annular plate through inclined plates, the rubber blocks penetrate through the notches to be connected with pressing plates, and the outer side wall of the fixing cover is sleeved with a lantern ring. The rubber block is extruded through the lantern ring, damping in the pre-pressing stage is increased, the pressing speed of the resiliometer is reduced, and therefore the accuracy of data measured by the resiliometer is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to building structure strength detection technical field, concretely to a novel building structure strength detection device. BACKGROUND

[0002] In the field of building engineering, the building structure strength is related to the safety, stability and durability of the whole building, is the key factor to ensure that the building can bear various load actions within its design service life, and guarantees the safety of user's life and property. Therefore, accurate detection of building structure strength is particularly important.

[0003] In the use process of the traditional rebound hammer, the speed of the operator pressing the rebound hammer is difficult to control, when the speed is too fast, the rebounding energy cannot be stably transmitted, and the accuracy of the measured data cannot be determined. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a novel building structure strength detection device.

[0005] In order to realize the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0006] A novel building structure strength detection device, comprising a rebound hammer, the rebound hammer comprising a top rod;

[0007] The fixed cover is fixedly connected with the side wall of the rebound hammer close to the top rod, and a plurality of slots are formed in the circumferential direction of the side wall of the fixed cover;

[0008] The width of the slot at the end away from the top rod is increased relative to the width of the end close to the top rod;

[0009] A restraining part is installed in the cavity of the fixed cover close to the top rod, the restraining part comprising an annular plate perpendicular to the top rod and a rubber block clamped to the fixed cover, the annular plate is fixed to the side wall of the end of the top rod, and the rubber block is connected to the annular plate through an inclined plate;

[0010] The rubber block is connected with a pressing plate through the slot;

[0011] The outer side wall of the fixed cover is sleeved with a sleeve ring, the sleeve ring is clamped to the pressing plate, and the rubber block is extruded by the pressing plate;

[0012] When the top rod is extruded close to the concrete, the annular plate drives the rubber block to slide in the slot, the sleeve ring extrudes the rubber block and makes it adhere to the side wall of the slot; before the top rod is completely extruded, the rubber block slides to the end of the slot away from the top rod, and is separated from the side wall of the slot.

[0013] Preferably, the width ratio of the end of the slot away from the top rod to the end close to the top rod is 1:1.1 to 1:1.2.

[0014] Preferably, the notches are linear or spiral in shape, and the notches cooperate with the rubber blocks to provide a pressing resistance.

[0015] Preferably, when the notches are linear in shape, the notches are parallel to the top rod.

[0016] Preferably, when the notches are spiral in shape, the spiral center of the notches is collinear with the axis of the top rod.

[0017] Preferably, the side of the annular plate away from the fixed cover is connected with a rotating ring.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] 1. After the top rod abuts against the surface of the concrete, the pressing rebound apparatus is pressed, the rubber blocks are squeezed by the sleeve ring, the resistance when the rebound apparatus is pressed is increased under the action of the rubber blocks and the notches, the damping in the pre-pressing stage is increased, the pressing speed of the rebound apparatus is slowed down, and thus the accuracy of the data measured by the rebound apparatus is improved.

[0020] 2. When the rebound apparatus is pressed to be completely squeezed, the rubber blocks enter the side with a larger width of the notches, at this time, the rubber blocks are separated from the notches, the pressing resistance is not provided, the top rod is only subjected to the force of the rebound apparatus, and the accuracy of the measured data is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] The disclosure of the present application will be described with reference to the accompanying drawings. It should be understood that the drawings are only for the purpose of illustration and are not intended to limit the scope of protection of the present application, and in the drawings, the same reference numerals are used to refer to the same parts. Among them:

[0022] Figure 1 is a structural schematic view of the building structure strength detection device of the present application;

[0023] Figure 2 is Figure 1 an exploded view;

[0024] Figure 3 is a structural schematic view of the notch in spiral shape.

[0025] Explanation of the figures in the drawings:

[0026] 1. Rebound apparatus; 11. Top rod;

[0027] 2. Fixed cover; 21. Notch;

[0028] 31. Annular plate; 311. Rotating ring; 32. Inclined plate; 33. Rubber block; 34. Pressing plate;

[0029] 4. Sleeve ring. DETAILED DESCRIPTION

[0030] It is easy to understand that according to the technical scheme of the present application, a person skilled in the art can propose a plurality of structure modes and implementation modes which can be replaced with each other without changing the essential spirit of the present application. Therefore, the following specific embodiments and drawings are only exemplary description of the technical scheme of the present application, and should not be regarded as the whole or regarded as the limitation or restriction of the technical scheme of the present application.

[0031] Embodiment 1

[0032] As shown in Figures 1-3 A new building structure strength detection device, comprising a rebound hammer 1, the rebound hammer 1 includes a top rod 11, the rebound hammer 1 side wall is fixedly connected with a fixed cover 2 near one side of the top rod 11, the fixed cover 2 is fixed on the rebound hammer 1 side wall, and there is a gap between the fixed cover 2 and the rebound hammer 1, the gap is to make the rebound hammer 1 not hinder the movement of the inclined plate 32 and the rubber block 33, the inclined plate 32 and the rubber block 33 can be in the gap between the fixed cover 2 and the rebound hammer 1 after moving.

[0033] In one embodiment, as shown in Figures 1-2 The side wall of the fixed cover 2 is provided with a plurality of slots 21 in the circumferential direction at equal intervals, and the number of slots 21 is at least three, which is to facilitate the effect of restraining the top rod 11 in the state perpendicular to the concrete surface by the restraint member. The width of the slot 21 at the end away from the top rod 11 is increased relative to the width of the end close to the top rod 11, and the width of the slot 21 at the end away from the top rod 11 is 1:1.1 to 1:1.2 relative to the width of the end close to the top rod 11, which is to ensure that there is no friction between the rubber block 33 and the slot 21 after the rubber block 33 moves to the end of the slot 21 away from the top rod 11, so as to facilitate the top rod 11 to be subjected to only the pressing force of the rebound hammer 1 when measuring data by the rebound hammer 1.

[0034] In one embodiment, as shown in Figures 1-2As shown, the restraint member is installed on the side of the cavity of the fixed cover 2 close to the ejector rod 11, which includes a ring-shaped plate 31 perpendicular to the ejector rod 11 and a rubber block 33 clamped to the fixed cover 2. The ring-shaped plate 31 is fixed to the side wall of the retractable end of the ejector rod 11, and the rubber block 33 is connected to the ring-shaped plate 31 through the inclined plate 32. The rubber block 33 is connected with the pressing plate 34 through the slot 21, and the size of the pressing plate 34 is larger than that of the larger side of the slot 21. The purpose is to prevent the restraint member from being separated from the fixed cover 2, and to ensure that the building structure strength detection device can be continuously used. The outer side wall of the fixed cover 2 is sleeved with the sleeve ring 4, which is clamped to the pressing plate 34 and extrudes the rubber block 33 through the pressing plate 34. The sleeve ring 4 extrudes the pressing plate 34, the pressing plate 34 presses and deforms the rubber block 33, and the rubber block 33 is in contact with the slot 21 to provide friction. The purpose is that when pressing the rebound apparatus 1, the user uses one hand to act on the sleeve ring 4 and the other hand to act on the rebound apparatus 1. During this process, the sleeve ring 4 is pressed, the sleeve ring 4 extrudes the rubber block 33, the friction between the rubber block 33 and the slot 21 is increased, and after the rebound of the ejector rod 11 is completed, the force applied to the sleeve ring 4 is released, and the friction between the rubber block 33 and the slot 21 during the resetting process of the ejector rod 11 and the restraint member is reduced.

[0035] In one embodiment, as shown in Figures 1-2 When the ejector rod 11 is pressed against the concrete, the ring-shaped plate 31 drives the rubber block 33 to slide in the slot 21, and the sleeve ring 4 extrudes the rubber block 33 and makes it fit the side wall of the slot 21. Before the ejector rod 11 is fully pressed, the rubber block 33 slides to the end of the slot 21 away from the ejector rod 11 and is separated from the side wall of the slot 21. The ring-shaped plate 31 of the restraint member is used to constrain the contact state of the ejector rod 11 with the surface of the concrete. Under the action of the ring-shaped plate 31, the top end of the ejector rod 11 is perpendicular to the surface of the concrete, which improves the accuracy of the data measured by the rebound apparatus 1. The rubber block 33 and the pressing plate 34 of the restraint member are used to cooperate with the slot 21 to provide friction, increase the force required when pressing the rebound apparatus 1 towards the surface of the concrete, provide damping for pressing the rebound apparatus 1, slow down the pressing speed, and improve the stability of the instrument in contact with the surface. Therefore, the accuracy of the data measured by the rebound apparatus 1 is improved.

[0036] Slowing down the pressing speed can also reduce the impact force when the ejector rod 11 contacts the surface of the concrete. The surface of the concrete can deform under uniform stress, improving the authenticity of the measured data.

[0037] In one embodiment, as shown in Figures 1-2 The slot 21 is in a straight line shape, and the slot 21 cooperates with the rubber block 33 to provide pressing resistance. The slot 21 is parallel to the ejector rod 11, the sleeve ring 4 extrudes the rubber block 33 through the pressing plate 34, the radial length of the rubber block 33 is increased, and there is friction between the rubber block 33 and the slot 21, which provides friction to slow down the pressing speed.

[0038] Example 2

[0039] In one embodiment, such as Figure 3 As shown, the groove 21 is spiral-shaped. The groove 21 cooperates with the rubber block 33 to provide pressing resistance. The spiral center of the groove 21 is collinear with the axis of the top rod 11. If the groove 21 is spiral-shaped, when the top rod 11 is pressed against the concrete surface to press the rebound hammer 1, the spiral-shaped groove 21 can directly provide friction between itself and the rubber block 33. At this time, it can be determined whether to use the collar 4 according to the situation. A rotating ring 311 is connected to the side of the annular plate 31 away from the fixed cover 2. Since the groove 21 is spiral-shaped, when the rebound hammer 1 is pressed, the top rod 11 will carry the rubber block 33 of the restraint member to rotate around the groove 21. At this time, the rotating ring 311 is set on the side of the annular plate 31 that is in contact with the wall. The rotating ring 311 can be stationary relative to the concrete surface, so that the annular plate 31 rotates with the top rod 11 without affecting the contact with the concrete surface.

[0040] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A novel building structure strength detection device, characterized by: The rebound hammer (1) comprises a top rod (11); The side wall of the rebound hammer (1) is fixedly connected with a fixed cover (2) near one side of the top rod (11), and the side wall of the fixed cover (2) is provided with a plurality of notches (21) at equal intervals in the circumferential direction. The width of the notch (21) at the end far from the top rod (11) is larger than that at the end close to the top rod (11). A restraining member is installed in the cavity of the fixed cover (2) near the top rod (11), and the restraining member comprises an annular plate (31) perpendicular to the top rod (11) and a rubber block (33) clamped to the fixed cover (2), the annular plate (31) is fixed to the side wall of the end of the top rod (11), and the rubber block (33) is connected to the annular plate (31) through an inclined plate (32). The rubber block (33) is connected with a pressing plate (34) through the notch (21). The outer side wall of the fixed cover (2) is sleeved with a sleeve ring (4), the sleeve ring (4) is clamped to the pressing plate (34) and extrudes the rubber block (33) through the pressing plate (34). When the top rod (11) is pressed against the concrete, the annular plate (31) drives the rubber block (33) to slide in the notch (21), and the sleeve ring (4) extrudes the rubber block (33) and makes it adhere to the side wall of the notch (21); before the top rod (11) is completely extruded, the rubber block (33) slides to the end of the notch (21) far from the top rod (11) and separates from the side wall of the notch (21).

2. The novel building structure strength detection device according to claim 1, characterized in that: The width of the end of the notch (21) far from the top rod (11) to the end close to the top rod (11) is 1:1.1 to 1:1.

2.

3. The novel building structure strength detection device according to claim 2, characterized in that: The notch (21) can be linear or spiral, and the notch (21) and the rubber block (33) cooperate to provide pressing resistance.

4. The novel building structure strength detection device according to claim 3, characterized in that: When the notch (21) is linear, the notch (21) is parallel to the top rod (11).

5. The novel building structure strength detection device according to claim 3, characterized in that: When the notch (21) is spiral, the spiral center of the notch (21) is collinear with the axis of the top rod (11).

6. The novel building structure strength detection device according to claim 5, characterized in that: The side of the annular plate (31) far from the fixed cover (2) is connected with a rotating ring (311).

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