CN211877588U

CN211877588U - Concrete durability check out test set

Info

Publication number: CN211877588U
Application number: CN201922360184.3U
Authority: CN
Inventors: 谢利; 刘想林; 程莉
Original assignee: Wuhan Union Construction Concrete Co ltd
Current assignee: Wuhan Union Construction Concrete Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-11-06
Anticipated expiration: 2029-12-24

Abstract

The utility model relates to a concrete durability check out test set, it includes the casing, be equipped with the bullet hitting subassembly in the casing, the bullet hitting subassembly includes the central guide arm that is located on the casing axis, the front end of central guide arm is equipped with the bullet hitting rod, the rear end of central guide arm is equipped with the bullet hitting hammer and is located the bullet hitting extension spring on bullet hitting rod, the central guide arm of cover, the front end of casing is equipped with the opening, run through the extension spring seat on the opening, the extension spring seat is fixed in the opening, the axis of extension spring seat runs through has the through hole, the front end of bullet hitting rod runs through in the through hole, bullet hitting extension spring front end install in on the extension spring seat, the rear end of bullet hitting extension spring is connected to bullet hitting hammer; the opening is connected with a front cover, and a cleaning assembly is arranged between the front cover and the opening. The utility model discloses have the dust or the impurity that are infected with on the bullet hitting rod surface and clear away, can avoid in the dust on the bullet hitting rod gets into the casing, protect casing internal plant, can ensure the effect of the precision that resiliometer detected the structure.

Description

Concrete durability check out test set

Technical Field

The utility model belongs to the technical field of concrete durability test technique and specifically relates to a concrete durability check out test set is related to.

Background

Concrete durability refers to the ability of concrete to withstand the action of environmental agents and maintain its good performance and appearance integrity over long periods of time, thereby maintaining the safe and normal use of the concrete structure. The concrete durability test is an important prerequisite for durability evaluation and residual life evaluation of the structure. The concrete resiliometer uses a spring to drive a spring hammer and utilizes the restoring force of instantaneous elastic deformation generated by the elastic striking of a striking rod on the surface of concrete to make the spring hammer drive a pointer to rebound and indicate the rebound distance. The compression strength of concrete is estimated by using a rebound value (a ratio of a rebound distance to a distance between a hammer and a striking rod before impact in percentage) as one of indexes related to the compression strength of concrete.

At present, chinese utility model patent that the bulletin number is CN202548023U discloses a high-strength concrete resiliometer, there are the impact hammer, the extension spring is hit to the bullet, the impact pole, central guide arm, wherein the impact pole is on the central guide arm from the front end plug bush, and the impact hammer quality is 370g, and the impact extension spring rigidity is 785N/m, and the extension length of the extension spring is hit to the bullet is 75mm, and the impact pole diameter is 15mm, and nominal impact energy is 2.207J, the impact pole is equipped with a plurality ofly, and each impact pole length is the same with the diameter and the radius of curvature of striking terminal surface is different.

When the high-strength concrete resiliometer in the prior art is used in a building construction site, the bouncing rod is in contact with the surface of concrete, and the bouncing rod is stained with dust or concrete; when the shell of the resiliometer is pressed, the elastic striking rod stretches into the shell, and the elastic striking rod brings dust in concrete into the shell; if a large amount of tests are carried out, dust brought into the shell by the resiliometer is accumulated more, so that the sensitivity of the spring impact tension spring in the shell is reduced, and the detection result is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a concrete durability check out test set, it has the dust or the impurity that the striking rod is infected with on the surface and clears away, can avoid in the dust entering casing on the striking rod, protects casing internal plant, can ensure the advantage of the precision that the resiliometer detected the structure.

The above object of the present invention can be achieved by the following technical solutions: a concrete durability detection device comprises a shell, wherein a striking component is arranged in the shell and comprises a central guide rod positioned on the axis of the shell, a striking rod is arranged at the front end of the central guide rod, a striking hammer and a striking tension spring sleeved on the striking rod and the central guide rod are arranged at the rear end of the central guide rod, an opening is formed in the front end of the shell, a tension spring seat penetrates through the opening and is fixed in the opening, a through hole is formed in the tension spring seat along the axis direction, the front end of the striking rod penetrates through the through hole, the front end of the striking tension spring is installed on the tension spring seat, and the rear end of the striking tension spring is connected to the striking hammer; the opening is connected with a front cover, and a cleaning assembly for cleaning the tapping rod is arranged between the front cover and the opening.

By adopting the technical scheme, when the concrete needs to be detected, an operator holds the middle part of the resiliometer with one hand to right the resiliometer; the afterbody of resiliometer is held to another hand to exert pressure to the instrument, the impact rod moves towards the casing is inside under the effect of pressing, and then clean subassembly is clear away the dust or the impurity that are infected with on the impact rod surface, can avoid the dust on the impact rod to get into in the casing, protects casing internal plant, can ensure the precision that resiliometer detected the structure.

The present invention may be further configured in a preferred embodiment as: the cleaning assembly comprises a brush and a connecting sleeve, the connecting sleeve is used for installing the brush on the opening, and the connecting sleeve is in threaded connection with the outer side wall of the tension spring seat.

Through adopting above-mentioned technical scheme, twist and move the adapter sleeve and install the tip of brush on the terminal surface of through hole, the front end of brush and the surface contact of tapping pole can sweep the dust to the tapping pole, prevent that the dust from getting into the interior influence of casing and detecting the structure, improve the precision that detects numerical value.

The present invention may be further configured in a preferred embodiment as: the connecting sleeve comprises a connecting ring and an abutting ring, wherein the connecting ring is used for being in threaded connection with the outer side wall of the tension spring seat, the abutting ring is used for abutting against the hairbrush, and the inner diameter of the abutting ring is larger than the diameter of the through hole.

Through adopting above-mentioned technical scheme, twist and move the go-between, the butt ring is fixed the tip of brush between butt ring and extension spring seat terminal surface to even with the brush along the circumference evenly distributed of striking the pole and make the front end of brush and the striking pole surface of bullet contact, thereby the brush is comprehensive to striking the pole surface to the bullet clear away the dust, avoids the structure in the casing to be infected with the dust and influences the testing result.

The present invention may be further configured in a preferred embodiment as: the brush is annularly arranged, the end part of the brush is sleeved with a plastic sleeve, and the plastic sleeve is positioned between the front end of the opening and the abutting ring.

Through adopting above-mentioned technical scheme, the plastic cover is with annular brush fixed mounting, avoids the brush to appear the phenomenon of falling hair when the brush strikes the pole surface to the influence is to the clear effect of striking the pole.

The present invention may be further configured in a preferred embodiment as: the connecting sleeve is sequentially divided into a connecting sleeve and an installation sleeve for installing the hairbrush, and the connecting sleeve is in threaded connection with the outer side wall of the tension spring seat.

Through adopting above-mentioned technical scheme, the installation cover is used for the installation of brush, and continuous cover is fixed whole adapter sleeve on the open-ended casing lateral wall, can install the brush on the lateral wall of extension spring seat, stabilizes the position between brush and the bouncing rod.

The present invention may be further configured in a preferred embodiment as: the mounting groove has been seted up on the inside wall of installation cover, the length direction of mounting groove sets up along the axis direction of installation cover, the mounting groove is equipped with a plurality ofly, and is a plurality of global evenly distributed of installation cover internal diameter is followed to the mounting groove.

Through adopting above-mentioned technical scheme, the mounting groove is used for the installation of brush, thereby the setting of a plurality of mounting grooves is installed the brush along the internal diameter of installation cover, can carry out the omnidirectional to the tapping pole and clear away the dust, avoids the dust to get into in the casing.

The present invention may be further configured in a preferred embodiment as: the end part of the brush is provided with an inserting block, and the inserting block is inserted into the mounting groove.

By adopting the technical scheme, the inserting blocks gather and neatly arrange the brushes; insert in the mounting groove to install the brush in the mounting groove, and then fix the brush in the mounting groove, the brush can be cleared up concrete, the dust on the bounce pole, can avoid in the dust gets into the casing, thereby influences the precision of measured value.

The present invention may be further configured in a preferred embodiment as: two cell walls of mounting groove all upwards extend towards the central line direction of mounting groove and have the joint board.

Through adopting above-mentioned technical scheme, the brush tip is installed in the mounting groove, and the joint board will be installed the insert block joint in the mounting groove to further install the brush in the opening part of casing, and then the brush clears away the dust to the impact rod, thereby avoids the impact rod to bring the dust into to the casing inside, can guarantee the sensitivity of impact extension spring.

To sum up, the utility model discloses a following at least one useful technological effect:

1. through the arrangement of the cleaning assembly, dust or impurities stained on the surface of the bouncing rod are removed, so that the dust on the bouncing rod can be prevented from entering the shell, equipment in the shell is protected, and the accuracy of the detection structure of the resiliometer can be ensured;

2. through the arrangement of the connecting ring, the abutting ring and the hairbrush, the hairbrush is fixed on the tension spring seat, and dust and impurities can be removed from the surface of the bouncing rod;

3. through the setting of linking to each other cover, installation cover, ann insertion block and joint board, the brush distributes along the global of impact rod, can carry out comprehensive cleaing away with the impurity on impact rod surface to place inner structure and be infected with the dust.

Drawings

FIG. 1 is a schematic view of the overall structure of embodiment 1;

FIG. 2 is an overall sectional view of embodiment 1;

FIG. 3 is an exploded view of the cleaning assembly of embodiment 1;

fig. 4 is a structural schematic view of the connecting sleeve of the embodiment 1;

FIG. 5 is an exploded view of the cleaning assembly of example 2;

fig. 6 is a partially enlarged schematic view of a portion a in fig. 5.

In the figure, 1, a housing; 2. a front cover; 3. a main body; 4. a rear end cap; 5. a tapping assembly; 6. a center guide bar; 7. a tapping rod; 8. a percussion hammer; 9. the tension spring is flicked; 10. a guide flange; 11. hooking; 12. a cleaning assembly; 13. a brush; 14. connecting sleeves; 15. plastic cover; 16. a connecting ring; 17. a butting ring; 18. inserting a block; 19. a connecting sleeve; 20. installing a sleeve; 21. a clamping and connecting plate; 22. mounting grooves; 23. a tension spring seat.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1

Referring to fig. 1 and 2, for the utility model discloses a concrete durability check out test set, including casing 1, casing 1 comprises protecgulum 2, main part 3 and rear end cap 4. The shell 1 is internally provided with an impact component 5, and the impact component 5 comprises a central guide rod 6, an impact rod 7, an impact hammer 8 and an impact tension spring 9; the central guide rod 6 is arranged in the axis direction in the shell 1, the rear end of the central guide rod 6 is fixedly connected with the guide flange 10, a pressure spring is arranged between the guide flange 10 and the rear end cover 4, and the end face, close to the pressure spring, of the guide flange 10 is hinged with the hook 11. The front end of the central guide rod 6 is coaxially inserted into a rear end hole of the bouncing rod 7 through a buffer compression spring; an opening is formed in the front end of the shell 1, the tension spring seat 23 penetrates through the opening, and the tension spring seat 23 is fixedly clamped with the opening; a through hole is coaxially formed in the tension spring seat 23, and the front end of the striking rod 7 penetrates through the through hole. The spring-striking tension spring 9 is sleeved on the spring-striking rod 7 and the central guide rod 6, and the spring-striking tension spring 9 is coaxially arranged with the main body 3 of the shell 1; the front end of the spring-striking tension spring 9 is fixedly connected with the rear end of the spring seat 23 in a winding manner, and the rear end of the spring-striking tension spring 9 is fixedly connected with the front end of the spring-striking hammer 8. The rear end of the elastic hammer 8 is connected with a hook 11 on a guide flange 10 in a hanging way.

Referring to fig. 3 and 4, a cleaning assembly 12 for cleaning the surface of the tapping rod 7 is provided at the opening of the housing 1, and the cleaning assembly 12 includes a brush 13 and a connecting sleeve 14; the brush 13 is annularly arranged, a plastic sleeve 15 is arranged at the end part of the brush 13, the plastic sleeve 15 is annularly arranged, the end part of the brush 13 is connected with the central line of the inner side wall of the plastic sleeve in a clamping mode, and the front end of the brush 13 extends towards the center direction of the opening. The connecting sleeve 14 comprises a connecting ring 16 and an abutting ring 17, the connecting ring 16 and the abutting ring 17 are arranged perpendicular to each other, and the connecting ring 16 is in threaded connection with the outer side wall of the tension spring seat 23; the inner diameter of the abutment ring 17 is dimensioned larger than the diameter of the through-going hole. The plastic sleeve 15 penetrates through the bouncing rod 7, one end face of the plastic sleeve 15 is abutted against the end face of the opening of the shell 1, the connecting sleeve 14 is sleeved on the bouncing rod 7, the connecting ring 16 is screwed until the other end face of the plastic sleeve 15 is abutted against the back face of the abutting ring 17, and then the plastic sleeve 15 can be fixed on the tension spring seat 23. Be equipped with the spiral shell thread on butt ring 17 and the 1 open-ended lateral wall of casing, be equipped with the internal thread on the inside wall of protecgulum 2, protecgulum 2 and

butt ring

17 and 1 open-ended lateral wall threaded connection of casing can be with the further fixed of clean subassembly 12 on the resiliometer.

The implementation principle of the above embodiment is as follows: when the resiliometer tests the concrete sample, an operator holds the middle part of the resiliometer by one hand and rights the resiliometer; the other hand holds the tail part of the resiliometer, the elastic striking rod 7 is vertical to the plane of the concrete sample, an operator applies pressure, the elastic striking rod 7 moves towards the inside of the shell 1 under the pressing action of the elastic striking rod 7, the hairbrush 13 removes dust on the surface of the elastic striking rod 7, and the elastic striking rod 7 drives the elastic striking hammer 8 and the guide flange 10 to move towards the direction of the rear end cover 4 under the pressure action; when striking rod 7 pressed to the critical point of casing 1, couple 11 on the guide flange 10 broke away from striking hammer 8 to striking hammer 8 breaks away from the pulling of couple 11, and then striking hammer 8 kick-backs towards the opening part of casing 1, thereby reachs the distance that striking hammer 8 kick-backed, and reachs the compressive strength of concrete.

When the cleaning component 12 is installed, the plastic sleeve 15 sleeved with the brush 13 is sleeved on the bouncing rod 7, and the end face of the plastic sleeve 15 is abutted against the end face of the tension spring seat 23; then, the connecting sleeve 14 is sleeved on the bouncing rod 7, the connecting ring 16 is screwed to move towards the opening of the shell 1 until the two end surfaces of the plastic sleeve 15 are abutted against the end surface of the tension spring seat 23 and the end surface of the abutting ring 17, and then the brush 13 can be fixed; finally, the front cover 2 is screwed on the opening of the shell 1.

Example 2:

referring to fig. 5 and 6, the utility model discloses a concrete durability detection device, with embodiment 1 difference lie in: a cleaning component 12 for cleaning the surface of the tapping rod 7 is arranged at the opening of the shell 1, and the cleaning component 12 comprises a hairbrush 13 and a connecting sleeve 14; the brush 13 is arranged in a strip shape, the end part of the brush 13 is clamped with an inserting block 18, and the inserting block 18 is made of plastic materials; the connecting sleeve 14 is arranged in a circular ring shape, the connecting sleeve 14 is sequentially divided into a connecting sleeve 19 and an installation sleeve 20, internal threads are arranged on the inner side wall of the connecting sleeve 19, the inner diameter size of the connecting sleeve 19 is consistent with the diameter size of the outer side wall of the front end of the tension spring seat 23, and the connecting sleeve 19 is in threaded connection with the tension spring seat 23; the inner diameter of the mounting sleeve 20 is smaller than that of the connecting sleeve 19, and the inner diameter of the mounting sleeve 20 is larger than that of the through hole in the tension spring seat 23, so that the thickness of the mounting sleeve 20 is larger than that of the connecting sleeve 19; mounting groove 22 has been seted up on the inside wall of installing sleeve 20, and the length direction of mounting groove 22 sets up along the axis direction of installing sleeve 20, and mounting groove 22 is provided with a plurality ofly, and a plurality of mounting grooves 22 are along the global evenly distributed of installing sleeve 20 internal diameter. The wall of each mounting groove 22 extends upwards to form a clamping plate 21 towards the central line direction of the mounting groove 22, an inserting block 18 is inserted into the groove of each mounting groove 22, the clamping plate 21 is used for further fixing the inserting block 18 in the mounting groove 22, and the brush 13 can be fixed in the mounting groove 22. Be equipped with the external screw thread on the lateral wall of adapter sleeve 14, be equipped with the internal thread on the inside wall of protecgulum 2, protecgulum 2 and adapter sleeve 14's lateral wall threaded connection can be with the further fixed of cleaning component 12 on the resiliometer.

The implementation principle of the above embodiment is as follows: when the cleaning component 12 is installed, the inserting block 18 with the brush 13 clamped therein is inserted into the installing groove 22, then the connecting sleeve 14 is sleeved on the striking rod 7, the connecting sleeve 19 is screwed to fix the connecting sleeve 14 on the tension spring seat 23, the brush 13 can be fixed on the tension spring seat 23, and finally the front cover 2 is screwed on the opening of the shell 1.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A concrete durability detection device comprises a shell (1), wherein a bullet beating component (5) is arranged in the shell (1), the bullet hitting component (5) comprises a central guide rod (6) positioned on the axis of the shell (1), a bullet hitting rod (7) is arranged at the front end of the central guide rod (6), a bullet hitting hammer (8) and a bullet hitting tension spring (9) sleeved on the bullet hitting rod (7) and the central guide rod (6) are arranged at the rear end of the central guide rod (6), an opening is arranged at the front end of the shell (1), a tension spring seat (23) penetrates through the opening, the tension spring seat (23) is fixed in the opening, a through hole is arranged on the tension spring seat (23) along the axial direction, the front end of the elastic striking rod (7) penetrates through the through hole, the front end of the elastic striking tension spring (9) is arranged on the tension spring seat (23), the rear end of the spring striking tension spring (9) is connected to the spring striking hammer (8); the method is characterized in that: the opening is connected with a front cover (2), and a cleaning component (12) for cleaning the bouncing rod (7) is arranged between the front cover (2) and the opening.

2. The concrete durability detecting apparatus according to claim 1, wherein: the cleaning assembly (12) comprises a hairbrush (13) and a connecting sleeve (14) used for installing the hairbrush (13) on the opening, and the connecting sleeve (14) is in threaded connection with the outer side wall of the tension spring seat (23).

3. The concrete durability detecting apparatus according to claim 2, wherein: the connecting sleeve (14) comprises a connecting ring (16) and an abutting ring (17), wherein the connecting ring is in threaded connection with the outer side wall of the tension spring seat (23), the abutting ring (17) is used for abutting against the hairbrush (13), and the inner diameter of the abutting ring (17) is larger than the diameter of the through hole.

4. The concrete durability detecting apparatus according to claim 3, wherein: the brush (13) is annularly arranged, a plastic sleeve (15) is sleeved at the end part of the brush (13), and the plastic sleeve (15) is located between the front end of the opening and the abutting ring (17).

5. The concrete durability detecting apparatus according to claim 2, wherein: the connecting sleeve (14) is sequentially divided into a connecting sleeve (19) and a mounting sleeve (20) for mounting the hairbrush (13), and the connecting sleeve (19) is in threaded connection with the outer side wall of the tension spring seat (23).

6. The concrete durability detecting apparatus according to claim 5, wherein: mounting groove (22) have been seted up on the inside wall of installation cover (20), the length direction of mounting groove (22) sets up along the axis direction of installation cover (20), mounting groove (22) are equipped with a plurality ofly, and are a plurality of global evenly distributed of installation cover (20) internal diameter is followed in mounting groove (22).

7. The concrete durability detecting apparatus according to claim 6, wherein: the end part of the brush (13) is provided with an inserting block (18), and the inserting block (18) is inserted into the mounting groove (22).

8. The concrete durability detecting apparatus according to claim 6, wherein: two cell walls of mounting groove (22) all upwards extend towards the central line direction of mounting groove (22) and have joint board (21).