Auxiliary tool of concrete penetration resistance meter

Abstract

The utility model discloses an auxiliary tool for a concrete penetration resistance meter, and relates to the technical field of penetration resistance meters. The auxiliary tool comprises a box body; the rotating mechanism is rotationally connected into the box body; one end of the lifting lead screw is in threaded connection with the rotating mechanism, and the other end of the lifting lead screw is located outside the box body; the lifting platform is connected to the end, located outside the box body, of the lifting lead screw. And the driving mechanism is rotationally connected in the box body and is used for driving the rotating mechanism to rotate so as to drive the lifting screw rod to drive the lifting table to lift. When the auxiliary tool is used, the auxiliary tool for the concrete penetration resistance meter is firstly placed on penetration resistance meter detection equipment, then a measuring sensor is placed on a lifting platform of the auxiliary tool for the concrete penetration resistance meter, and after the penetration resistance meter detection equipment is in contact with the measuring sensor, the driving mechanism drives the rotating mechanism to rotate; therefore, the lifting lead screw is driven to drive the lifting table to rise, upward stable force application is achieved, reading is obtained, detection is completed, and accurate calibration is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of penetration resistance instruments, in particular to an auxiliary tool for a concrete penetration resistance instrument. Background Art

[0002] The concrete penetration resistance meter is suitable for the setting time test of various cements, admixtures, concrete mixtures with different mix ratios and different temperature environments. It is a special instrument for the setting time test of concrete mixtures and has a wide range of uses. At present, the equipment used by most measurement departments to calibrate the penetration resistance meter is a dynamometer. Simply using a dynamometer to calibrate the penetration resistance meter cannot achieve accurate calibration. Utility Model Content

[0003] In order to solve the existing technical problems, the utility model provides a concrete penetration resistance meter auxiliary tool.

[0004] The auxiliary tools include:

[0005] Box;

[0006] A rotating mechanism, rotatably connected within the box;

[0007] A lifting screw, one end of which is threadedly connected to the rotating mechanism, and the other end of which is located outside the box;

[0008] A lifting platform connected to the end of the lifting screw rod outside the box;

[0009] The driving mechanism is rotatably connected in the box body and is used to drive the rotating mechanism to rotate, thereby driving the lifting screw to drive the lifting platform to move up and down.

[0010] Furthermore, the box body is provided with a first connection hole and a second connection hole;

[0011] The first connection hole and the second connection hole are opened in perpendicular directions, and the first connection hole and the second connection hole are connected through a through hole;

[0012] The rotating mechanism is rotatably connected in the first connecting hole, and the driving mechanism is rotatably connected in the second connecting hole;

[0013] The driving mechanism drives the rotating mechanism to rotate via the through hole.

[0014] Furthermore, the driving mechanism comprises:

[0015] A worm gear, rotatably connected to the second connecting hole;

[0016] The rotating mechanism comprises:

[0017] A rotating shaft is rotatably connected in the first connecting hole, a threaded hole is formed on the rotating shaft, and one end of the lifting screw rod is threadedly connected in the threaded hole;

[0018] A worm wheel is fixed to the outer side wall of the rotating shaft;

[0019] The worm and the worm wheel are meshed through the through hole.

[0020] Furthermore, the driving mechanism further comprises:

[0021] Two shaft end covers, respectively connected to two ends of the second connecting hole;

[0022] The two first bearings are respectively connected to the side walls of the two shaft end covers located in the second connecting holes, and the two ends of the worm are respectively connected to the inner walls of the two first bearings.

[0023] Furthermore, one end of the worm is connected to a handwheel shaft, one end of the handwheel shaft is located outside the box, and the end located outside is connected to a handwheel.

[0024] Furthermore, the rotating mechanism comprises:

[0025] The box cover and the bottom cover are respectively connected to the two ends of the first connecting hole;

[0026] Two second bearings are respectively connected to the side walls of the box cover and the bottom cover located in the first connecting hole, and the two ends of the rotating shaft are respectively connected to the inner walls of the two second bearings;

[0027] One end of the lifting screw rod passes through the box cover and is located outside the box body.

[0028] Furthermore, a sliding groove is provided on the side wall of the lifting screw rod;

[0029] The box cover is located outside the box body and has a notch on its top. The inner wall of the box cover has a mounting groove. A gasket is connected in the notch. The gasket fixes the slider in the mounting groove. The other end of the slider is slidably connected in the slide groove.

[0030] Furthermore, the first bearing is a single-row tapered roller bearing.

[0031] Furthermore, the second bearing is a single-row tapered roller bearing.

[0032] The beneficial effects of the technical solution provided by the utility model are as follows: a box body, a rotating mechanism, a lifting screw, a lifting platform and a driving mechanism are provided in the utility model, the rotating mechanism is rotatably connected in the box body, one end of the lifting screw is threadedly connected to the rotating mechanism, and the other end is located outside the box body, and the end of the lifting screw located outside the box body is fixedly connected to the lifting platform; the driving mechanism is rotatably connected in the box body, and is used to drive the rotating mechanism to rotate. When in use, the concrete penetration resistance meter auxiliary device is first placed on the penetration resistance meter detection device, and then the measuring sensor is placed on the lifting platform of the concrete penetration resistance meter auxiliary device. After the penetration resistance meter detection device contacts the measuring sensor, the driving mechanism drives the rotating mechanism to rotate, thereby driving the lifting screw to drive the lifting platform to rise, and applying force upward stably to obtain readings, complete the detection, and achieve accurate calibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of a concrete penetration resistance instrument auxiliary device provided by the utility model;

[0034] Figure 2 It is a structural schematic diagram of a concrete penetration resistance instrument auxiliary device provided by the utility model;

[0035] Figure 3 This is a structural schematic diagram of a box provided by the utility model;

[0036] Figure 4 It is a structural schematic diagram of a driving mechanism provided by the utility model;

[0037] Figure 5 It is a structural schematic diagram of a rotating mechanism provided by the utility model;

[0038] Figure 6 This is a schematic diagram of the internal structure of a rotating mechanism provided by the utility model;

[0039] Figure 7 It is a structural schematic diagram of a lifting screw rod provided by the utility model;

[0040] Figure 8 The utility model is a structural schematic diagram of a box cover provided by the utility model.

[0041] Figure markings: 1-box body; 2-lifting screw; 3-lifting platform; 4-first connecting hole; 5-second connecting hole; 6-through hole; 7-worm; 8-rotating shaft; 9-worm wheel; 10-shaft end cover; 11-first bearing; 12-handwheel shaft; 13-handwheel; 14-box cover; 15-bottom cover; 16-second bearing; 17-slide groove; 18-notch; 19-installation groove; 20-gasket. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0044] It should be noted that in this embodiment, the directions or positional relationships indicated by "bottom", "top", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0045] It should also be noted that, in this embodiment, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] See also Figure 1-Figure 8 A concrete penetration resistance meter auxiliary tool comprises a box body 1, a rotating mechanism, a lifting screw rod 2, a lifting platform 3 and a driving mechanism.

[0047] The rotating mechanism is rotatably connected in the box body 1; one end of the lifting screw rod 2 is threadedly connected to the rotating mechanism, and the other end is located outside the box body 1, and the end of the lifting screw rod 2 located outside the box body 1 is fixedly connected to the lifting platform 3; the driving mechanism is rotatably connected in the box body 1, and is used to drive the rotating mechanism to rotate, thereby driving the lifting screw rod 2 to drive the lifting platform 3 to move up and down.

[0048] The concrete penetration resistance meter auxiliary tool is used to fix the standard dynamometer so that it can stably measure the force value of the penetration resistance meter. When in use, the concrete penetration resistance meter auxiliary tool is first placed on the penetration resistance meter detection equipment, and then the measuring sensor is placed on the lifting platform 3 of the concrete penetration resistance meter auxiliary tool. After the penetration resistance meter detection equipment contacts the measuring sensor, the driving mechanism drives the rotating mechanism to rotate, thereby driving the lifting screw rod 2 to drive the lifting platform 3 to rise, and stably apply force upward to obtain readings and complete the detection.

[0049] Furthermore, the box body 1 is provided with a first connection hole 4 and a second connection hole 5, and the first connection hole 4 and the second connection hole 5 are provided in a perpendicular direction. Figure 3 The first connection hole 4 can be opened from the top to the bottom of the box body 1, and the second connection hole 5 can be opened from the front side wall to the rear side wall of the box body 1, and the first connection hole 4 and the second connection hole 5 are connected through the through hole 6.

[0050] Among them, the driving mechanism includes: two shaft end covers 10, which are respectively fixed to the two ends of the second connecting hole 5 by bolts, and the side walls of the shaft end covers 10 located in the second connecting hole 5 are fixedly connected with first bearings 11, and a worm 7 is fixedly connected between the inner walls of the two first bearings 11, and the position of the worm 7 corresponds to the position of the through hole 6; one end of the worm 7 is fixedly connected to a handwheel shaft 12, and the handwheel shaft 12 is rotatably connected to the shaft end cover 10, and the other end of the handwheel shaft 12 is fixedly connected to a handwheel 13.

[0051] The rotating mechanism includes: a box cover 14 and a bottom cover 15, which are respectively fixed to the top and bottom of the first connecting hole 4 by bolts. The box cover 14 and the bottom cover 15 are fixedly connected to the side walls inside the first connecting hole 4 with second bearings 16. A rotating shaft 8 is fixedly connected between the inner walls of the two second bearings 16. The rotating shaft 8 is provided with threaded holes from the top to the bottom. A worm gear 9 is fixedly connected to the outer wall of the rotating shaft 8. The position of the worm gear 9 corresponds to the position of the through hole 6, and the worm 7 and the worm gear 9 are meshed through the through hole 6.

[0052] One end of the lifting screw 2 passes through the box cover 14 and is threadedly connected to the threaded hole of the rotating shaft 8. When the lifting screw 2 needs to drive the lifting platform 3 upward, the hand wheel 13 drives the worm 7 to rotate, the worm 7 drives the worm wheel 9 to rotate, and the worm wheel 9 drives the rotating shaft 8 to rotate, thereby driving the lifting screw 2 to move upward.

[0053] Furthermore, a slide groove 17 is provided on the side wall of the lifting screw rod 2, and an annular protrusion is provided on the side wall of the box cover 14 outside the box body 1. The lifting screw rod 2 is located in the annular protrusion, and a notch 18 is provided on the top of the annular protrusion. A mounting groove 19 is also provided on the annular protrusion. The mounting groove 19 is located directly below the notch 18. A gasket 20 is connected in the notch 18 by bolts. The gasket 20 fixes the slider in the mounting groove 19, and the other end of the slider is slidably connected in the slide groove 17, so that the lifting screw rod 2 can move straight up or downward.

[0054] Furthermore, the first bearing 11 and the second bearing 16 are both single-row tapered roller bearings, which consist of an inner ring assembly (including rollers, a cage and an inner ring) and an outer ring. The two can be easily separated. This design makes the bearings more convenient to install, disassemble and maintain. The inner ring and the outer ring have matching tapered raceways, and the rollers are also tapered. The extension lines of these tapered surfaces in the direction of the bearing axis converge at one point, so that the rollers can achieve pure rolling motion on the raceways, effectively reducing friction.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A concrete penetration resistance meter auxiliary tool, characterized in that: The auxiliary tools include: Box body (1); A rotating mechanism, rotatably connected in the box body (1); A lifting screw rod (2), one end of which is threadedly connected to the rotating mechanism, and the other end of which is located outside the box body (1); A lifting platform (3) connected to the end of the lifting screw rod (2) located outside the box (1); The driving mechanism is rotatably connected in the box body (1) and is used to drive the rotating mechanism to rotate, thereby driving the lifting screw rod (2) to drive the lifting platform (3) to move up and down.

2. The concrete penetration resistance meter auxiliary tool according to claim 1 is characterized in that: The box body (1) is provided with a first connection hole (4) and a second connection hole (5); The opening directions of the first connection hole (4) and the second connection hole (5) are perpendicular, and the first connection hole (4) and the second connection hole (5) are connected via a through hole (6); The rotating mechanism is rotatably connected in the first connecting hole (4), and the driving mechanism is rotatably connected in the second connecting hole (5); The driving mechanism drives the rotating mechanism to rotate via the through hole (6).

3. The concrete penetration resistance meter auxiliary tool according to claim 2 is characterized in that: The driving mechanism comprises: A worm (7) rotatably connected to the second connecting hole (5); The rotating mechanism comprises: A rotating shaft (8) is rotatably connected in the first connecting hole (4); a threaded hole is formed on the rotating shaft (8), and one end of the lifting screw rod (2) is threadedly connected in the threaded hole; A worm wheel (9) is fixed to the outer wall of the rotating shaft (8); The worm (7) and the worm wheel (9) are meshed through the through hole (6).

4. The concrete penetration resistance meter auxiliary tool according to claim 3 is characterized in that: The driving mechanism further comprises: Two shaft end covers (10) are respectively connected to two ends of the second connecting hole (5); The two first bearings (11) are respectively connected to the side walls of the two shaft end covers (10) located in the second connection hole (5), and the two ends of the worm (7) are respectively connected to the inner walls of the two first bearings (11).

5. The concrete penetration resistance meter auxiliary tool according to claim 4 is characterized in that: One end of the worm (7) is connected to a handwheel shaft (12), one end of the handwheel shaft (12) is located outside the box (1), and the end located outside is connected to a handwheel (13).

6. The concrete penetration resistance meter auxiliary tool according to claim 3, characterized in that: The rotating mechanism comprises: A box cover (14) and a bottom cover (15) are respectively connected to two ends of the first connecting hole (4); Two second bearings (16) are respectively connected to the side walls of the box cover (14) and the bottom cover (15) located in the first connecting hole (4), and the two ends of the rotating shaft (8) are respectively connected to the inner walls of the two second bearings (16); One end of the lifting screw rod (2) passes through the box cover (14) and is located outside the box body (1).

7. The concrete penetration resistance meter auxiliary tool according to claim 6, characterized in that: A sliding groove (17) is provided on the side wall of the lifting screw rod (2); The box cover (14) is provided with a notch (18) at the top outside the box body (1), and a mounting groove (19) is provided on the inner wall of the box cover (14). A gasket (20) is connected in the notch (18), and the gasket (20) fixes the slider in the mounting groove (19). The other end of the slider is slidably connected in the slide groove (17).

8. The concrete penetration resistance meter auxiliary tool according to claim 4, characterized in that: The first bearing (11) is a single-row tapered roller bearing.

9. The concrete penetration resistance meter auxiliary tool according to claim 6, characterized in that: The second bearing (16) is a single-row tapered roller bearing.

Images