Digital display concrete rebound apparatus for building

Abstract

The utility model belongs to the field of concrete performance detection, and particularly relates to a digital display concrete resiliometer for a building, which solves the problems that a meter is inconvenient to read and a digital display screen is not protected in the prior art, and comprises an extender shell which is respectively and fixedly connected with an outer shell and a handle through screws, a transverse rod is slidably assembled in the extender shell, a vertical plate is fixedly connected to the transverse rod through screws, a limiting rod and a transverse sleeve are fixedly connected to the interior of the extender shell through screws, and through arrangement of the transverse rod, a steel rope and other structures, when the strength of top concrete is measured, a handle is grasped to lift the extender shell, and the steel rope is fixedly connected to the limiting rod. After detection is completed, the transverse rod is pressed, the steel rope connected to the transverse rod pulls the rack plate to ascend to drive the rotating wheel to rotate, the digital display meter rotates to the horizontal position along with the transverse rod, real-time observation can be achieved, then the digital display meter can be directly moved to other places to be measured again, convenience and rapidness are achieved, and the effect of convenient meter reading is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete performance detection, in particular to a digital display concrete rebound tester for construction. Background Art

[0002] At present, the concrete rebound tester is a testing device suitable for testing the strength of general building components, bridges and various concrete components (plates, beams, columns, bridge frames). The main technical indicators include impact function; spring stiffness; hammer stroke; maximum static friction of the pointer system and average value of rigidity. During the whole process of operating the rebound tester, you should pay attention to the posture of holding the rebound tester. Hold the middle part of the rebound tester with one hand to play a role of straightening; hold the tail of the instrument with the other hand to apply pressure to the instrument, which also plays an auxiliary straightening role. The operating essentials of the rebound tester are: ensure that the axis of the rebound tester is always perpendicular to the concrete test surface, apply force evenly and slowly, and straighten and align with the test surface. Push slowly and read quickly.

[0003] The prior art has a digital display rebound tester for high-strength concrete testing with an authorization announcement number of CN214472278U, which includes a rebound tester body, on which a length adjustment mechanism is installed, and the length adjustment mechanism includes a telescopic sleeve, one end of which is detachably connected to an end of a striking rod of the rebound tester body away from the rebound tester body. When it is necessary to test high-altitude concrete, the tester can install the first branch pipe to the end of the rebound tester body, then slide the second branch pipe to the end of the first branch pipe and rotate the second branch pipe to be threadedly connected to the first branch pipe, connect the adjacent second branch pipe in the same way, and then connect the second branch pipe to the third branch pipe, thereby extending the length of the telescopic sleeve and increasing the height of the rebound tester body during testing. After the test is completed, the tester can unscrew the threaded connection between the first branch pipe and the second branch pipe, the connected second branch pipe and the second branch pipe, and the connected second branch pipe and the third branch pipe, and then push the first branch pipe until the first branch pipe and all the second branch pipes slide into the third branch pipe, thereby shortening the length of the telescopic sleeve, reducing the occupied space, and facilitating storage and carrying. However, when the utility model detects the strength of the top concrete, the height of the rebound hammer is relatively high, and the real-time indication on the digital display cannot be observed. To lock the indication through the lock buckle, the rebound hammer needs to be put down to read the indication and then lifted up again for testing, which is rather troublesome. The surface of the digital display is not protected and must be retracted into the barrel after each use, otherwise the digital display will be damaged if it is bumped. It needs to be extended when in use, and the process is rather cumbersome. Utility Model Content

[0004] The utility model aims to provide a digital display concrete rebound tester for construction, which solves the problem of inconvenient meter reading and no protection of the digital display screen.

[0005] To achieve the above object, the utility model provides the following technical solutions: a digital display concrete rebound tester for construction, comprising an extender housing, the extender housing is respectively fixedly connected to an outer housing and a handle by screws, a cross bar is slidably mounted inside the extender housing, a vertical plate is fixedly connected to the cross bar by screws, and a limit rod and a cross sleeve are respectively fixedly connected inside the extender housing by screws;

[0006] The outer shell is internally slidably equipped with a push rod, a pressure sensor is installed at the bottom of the push rod, a rotating wheel is rotatably installed on the outer shell, a digital display is installed on the rotating wheel, the digital display and the pressure sensor are electrically connected, the inner part of the outer shell is respectively fixedly connected with a sliding sleeve, a steering rod and a guide rod by screws, the inner part of the sliding sleeve is internally slidably equipped with a rack plate, the top of the rack plate is fixedly connected with a steel rope, the other end of the steel rope is respectively passed around the steering rod, the guide rod and the limit rod and is fixedly connected to the cross bar.

[0007] Preferably, a protective plate is further included, and slide grooves are provided on both sides of the digital display, and two ends of the protective plate are respectively located inside the two slide grooves.

[0008] Preferably, a flattening portion and a gear portion are provided on the rotating wheel, and the gear portion is meshed with the rack plate.

[0009] Preferably, a long slot is provided inside the sliding sleeve, the rack plate is slidably connected inside the long slot, a telescopic spring is welded to the bottom of the rack plate, and the other end of the telescopic spring is welded inside the long slot.

[0010] Preferably, a transverse groove is provided inside the transverse sleeve, the transverse rod passes through the inside of the transverse groove, a return spring is welded on the vertical plate, and the other end of the return spring is welded inside the transverse groove.

[0011] Preferably, a vertical groove is provided inside the outer shell, and the push rod is slidably connected inside the vertical groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model measures the top concrete strength by setting structures such as cross bars and steel ropes. When the extender housing is lifted by grasping the handle, the top rod is brought into contact with the concrete for testing. After the test is completed, the cross bar is pressed, and the steel rope connected to the cross bar pulls the rack plate up to drive the rotating wheel to rotate. The digital display follows the rotation to a horizontal position, which can be observed in real time, and then can be directly moved to another place for measurement again. It is convenient and quick, and the effect of convenient meter reading is achieved.

[0014] 2. The utility model provides a digital display meter, a protective plate and other structures. When not in use, the protective plate is slid into the slide grooves provided on both sides of the digital display meter to protect the surface of the digital display meter and prevent the digital display meter from being damaged by bumps, thereby achieving the effect of effectively protecting the digital display meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the utility model;

[0016] Figure 2 It is an enlarged view of structure A of the utility model;

[0017] Figure 3 It is an enlarged view of structure B of the utility model;

[0018] Figure 4 It is a schematic diagram of the overall structure of the utility model.

[0019] In the figure: 1. extender housing; 2. handle; 3. cross bar; 4. outer housing; 5. push rod; 6. digital display; 7. limit rod; 8. reset spring; 9. cross sleeve; 10. vertical plate; 11. guide rod; 12; steering rod; 13. steel rope; 14. rotating wheel; 15. sliding sleeve; 16. telescopic spring; 17. rack plate; 18. pressure sensor; 19. protective plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4A digital display concrete rebound tester for construction includes an extender shell 1, an outer shell 4 and a handle 2 are fixedly connected to the extender shell 1 by screws, a cross bar 3 is slidably mounted inside the extender shell 1, a vertical plate 10 is fixedly connected to the cross bar 3 by screws, a limit rod 7 and a cross sleeve 9 are fixedly connected to the extender shell 1 by screws, a top rod 5 is slidably mounted inside the outer shell 4, a pressure sensor 18 is installed at the bottom of the top rod 5, a rotating wheel 14 is rotatably mounted on the outer shell 4, a digital display 6 is installed on the rotating wheel 14, the digital display 6 and the pressure sensor 18 are electrically connected, and a sliding sleeve 15, a steering rod 12 and a guide rod 11 are fixedly connected to the inner part of the outer shell 4 by screws The inner sliding part of the sliding sleeve 15 is equipped with a rack plate 17, and the top of the rack plate 17 is fixedly connected with a steel rope 13. The other end of the steel rope 13 is respectively passed around the steering rod 12, the guide rod 11 and the limit rod 7 and is fixedly connected to the cross bar 3. Through the arrangement of the cross bar 3, the steel rope 13 and other structures, when measuring the strength of the top concrete, the handle 2 is grasped to lift the extender housing 1 so that the top rod 5 contacts the concrete for detection. After the detection is completed, the cross bar 3 is pressed, and the steel rope 13 connected to the cross bar 3 pulls the rack plate 17 up to drive the rotating wheel 14 to rotate. The digital display 6 rotates to a horizontal position and can be observed in real time. Then it can be directly moved to another place for measurement again. It is convenient and quick, and the effect of convenient meter reading is achieved.

[0022] See also Figure 1-4 , and also includes a protective plate 19. Slide grooves are opened on both sides of the digital display 6. The two ends of the protective plate 19 are respectively located inside the two slide grooves. Through the arrangement of the digital display 6, the protective plate 19 and other structures, when not in use, the protective plate 19 is slid into the slide grooves opened on both sides of the digital display 6 to protect the surface of the digital display 6, prevent the digital display 6 from being damaged by bumps, and achieve the effect of effectively protecting the digital display 6.

[0023] See also Figure 2 The rotating wheel 14 is provided with a flat portion and a gear portion, and the gear portion and the rack plate 17 are meshed.

[0024] See also Figure 2 A long groove is provided inside the sliding sleeve 15, and a rack plate 17 is slidably connected inside the long groove. A telescopic spring 16 is welded to the bottom of the rack plate 17, and the other end of the telescopic spring 16 is welded inside the long groove.

[0025] See also Figure 3 A transverse groove is provided inside the transverse sleeve 9, and the transverse rod 3 passes through the interior of the transverse groove. A return spring 8 is welded on the vertical plate 10, and the other end of the return spring 8 is welded inside the transverse groove.

[0026] See also Figure 1 A vertical groove is provided inside the outer shell 4, and the top rod 5 is slidably connected inside the vertical groove.

[0027] The specific implementation process of the utility model is as follows: when measuring the top concrete strength, grasp the handle 2 to lift the extender housing 1, so that the top rod 5 contacts the concrete for detection. After the detection is completed, press the cross bar 3, and the steel rope 13 connected to the cross bar 3 pulls the rack plate 17 up to drive the rotating wheel 14 to rotate, and the digital display 6 rotates to a horizontal position, which can be observed in real time, and then can be directly moved to another place for measurement again, which is convenient and quick.

[0028] When not in use, the protective plate 19 can be slid into the slide grooves provided on both sides of the digital display meter 6 to protect the surface of the digital display meter 6, thereby preventing the digital display meter 6 from being damaged by collision, thereby effectively protecting the safety of the digital display meter 6.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A digital concrete rebound test hammer for construction, comprising an extender housing (1), characterized in that: The extender housing (1) is fixedly connected to an outer housing (4) and a handle (2) by screws, a cross bar (3) is slidably mounted inside the extender housing (1), a vertical plate (10) is fixedly connected to the cross bar (3) by screws, and a limit rod (7) and a cross sleeve (9) are fixedly connected inside the extender housing (1) by screws; The outer shell (4) is slidably mounted with a push rod (5), the bottom of which is mounted with a pressure sensor (18), the outer shell (4) is rotatably mounted with a rotating wheel (14), the rotating wheel (14) is mounted with a digital display (6), the digital display (6) and the pressure sensor (18) are electrically connected, the inner part of the outer shell (4) is respectively fixedly connected with a sliding sleeve (15), a steering rod (12) and a guide rod (11) by screws, the inner part of the sliding sleeve (15) is slidably mounted with a rack plate (17), the top of which is fixedly connected with a steel rope (13), the other end of which passes through the steering rod (12), the guide rod (11) and the limit rod (7) and is fixedly connected to the cross bar (3).

2. The digital display concrete rebound tester for construction according to claim 1, characterized in that: It also includes a protective plate (19), and slide grooves are provided on both sides of the digital display (6), and the two ends of the protective plate (19) are respectively located inside the two slide grooves.

3. The digital display concrete rebound tester for construction according to claim 1, characterized in that: The rotating wheel (14) is provided with a flattening portion and a gear portion, and the gear portion is meshed with the rack plate (17).

4. The digital display concrete rebound tester for construction according to claim 1, characterized in that: A long slot is provided inside the sliding sleeve (15), the rack plate (17) is slidably connected inside the long slot, a telescopic spring (16) is welded to the bottom of the rack plate (17), and the other end of the telescopic spring (16) is welded inside the long slot.

5. The digital display concrete rebound tester for construction according to claim 1, characterized in that: A transverse groove is provided inside the transverse sleeve (9), the transverse rod (3) passes through the interior of the transverse groove, a return spring (8) is welded to the vertical plate (10), and the other end of the return spring (8) is welded inside the transverse groove.

6. The digital display concrete rebound tester for construction according to claim 1, characterized in that: A vertical slot is provided inside the outer shell (4), and the top rod (5) is slidably connected inside the vertical slot.

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