A new concrete shrinkage test device

Abstract

The utility model belongs to the technical field of test devices, and specifically relates to a new type of concrete shrinkage test device, including a base, a fixed seat is fixedly connected to the middle part of the upper end of the base, a support shaft 1 is installed inside the fixed seat through a bearing, a support shaft 2 is installed inside the fixed seat through a bearing, a sample support box is fixedly connected between the support shaft 2 and the support shaft 1, and a level is set on the left side of the front of the sample support box. Through the setting of the level, this solution can test the horizontality of the sample support box to ensure the horizontality of the sample support box. Under the action of the motor, gear 2, gear 1 and other structures, the support shaft 1 can drive the sample support box to rotate, and the position of the sample support box can be adjusted horizontally. Under the action of the positioning hole, positioning ball and other structures, the rotating disk can be limited, and the position of the sample support box can be accurately processed.

Description

Technical Field

[0001] The utility model belongs to the technical field of test devices, and in particular relates to a new type of concrete shrinkage test device. Background Art

[0002] The concrete shrinkage test device is a device used to measure the shrinkage properties of concrete. Concrete shrinks during the hardening process, that is, the volume decreases, which may cause cracking and deformation of the concrete structure. In order to evaluate the shrinkage properties of concrete, a shrinkage test is required;

[0003] Concrete shrinkage test equipment usually includes: Sample support device: used to support the concrete sample to be tested. The support device usually consists of a fixed base and an adjustable upper support device to ensure that the sample remains horizontal and stable during the test; Deformation measurement device: used to measure the shrinkage deformation of the concrete sample. This may include strain gauges, displacement sensors or measuring gauges, which can monitor the dimensional changes of the sample in real time, etc.

[0004] A new concrete shrinkage test device is disclosed in a utility model patent with patent authorization announcement number CN217561103U, including a charging box, a charging trough is provided on the top of the charging box, a stripping plate is fixedly and movably connected to the bottom of the inner side of the charging trough, a movable slider is movably connected to the inner side of the charging trough, a limiting rod passes through one side of the movable slider, a bottom plate is fixedly connected to the bottom of the charging box, a mounting platform is fixedly connected to the top of the bottom plate, a detection mechanism is fixedly connected to the top of the mounting platform, an adjustment port is fixedly provided on the side of the top of the bottom plate away from the mounting platform, a leveling mechanism is movably connected to the bottom of the bottom plate, a screw port is provided on the side of the bottom of the charging box away from the bottom plate, the charging box is threadedly connected to a driving shaft through the screw port, and an adjustment buckle is fixedly connected to the bottom of the driving shaft.

[0005] However, the existing new concrete shrinkage test device also has certain shortcomings. First, the existing new concrete shrinkage test device simply uses a base and an upper support device to adjust the horizontality of the sample support box. Due to the influence of factors such as inertia, it is easy to cause the problem of excess deflection of the sample support box;

[0006] Secondly, the displacement tester used in the existing new concrete shrinkage test device is fixed with bolts, etc. Since the use of bolts requires professional assembly tools, it is obviously inconvenient for operators to use. Summary of the invention

[0007] The utility model aims to provide a new concrete shrinkage test device, which solves the problem that the existing new concrete shrinkage test devices mostly simply use a base and an upper support device to adjust the horizontality of a sample support box, which is easy to cause unnecessary deflection of the sample support box due to the influence of factors such as inertia; and solves the problem that the displacement tester used in the existing new concrete shrinkage test device is fixed with bolts, etc., because the use of bolts requires professional assembly tools, which is inconvenient for operators to use.

[0008] In order to achieve the above-mentioned purpose, the utility model provides a new type of concrete shrinkage test device, including a base, a fixed seat is fixedly connected to the middle part of the upper end of the base, a support shaft 1 is installed inside the fixed seat through a bearing, a support shaft 2 is installed inside the fixed seat through a bearing, a sample support box is fixedly connected between the support shaft 2 and the support shaft 1, a level is arranged on the left side of the front of the sample support box, a glass partition is fixedly connected to the inner wall of the sample support box, and the inner right side wall of the sample support box contacts a displacement tester;

[0009] The right end of the displacement tester is fixedly connected with an insert block, and the insert block is slidably connected to the sample support box. The interior of the sample support box is slidably connected with an insert plate, and the insert plate is slidably connected to the insert block. The upper end of the insert plate is fixedly connected with an end head, and the end head contacts the sample support box. The upper end of the end head is fixedly connected with a connecting piece, and a spring is arranged on the outer side of the insert plate.

[0010] The principle of the utility model is: by pulling the connecting piece upward to move, the end head is driven to move, and then the plug plate is driven to move, the spring is deformed, and then the displacement tester is pushed to contact with the sample support box, so that the plug block is inserted into the sample support box, and the connecting piece is loosened to make the spring recover its deformation, so as to push the plug plate to insert the plug block, and the plug block is plugged and limited, so that the plug block drives the displacement tester to be placed stably, which is convenient for the operator to quickly install and use. Under the action of the displacement tester, the concrete shrinkage displacement inside the subsequent sample support box can be tested and used;

[0011] The start motor drives the output shaft to rotate, so as to drive gear two to rotate. Under the meshing relationship, gear two drives gear one to rotate, and then drives support shaft one to rotate, so as to drive the sample support box to deflect, and adjust the position of the sample support box. In conjunction with the role of the level instrument, the position of the sample support box can be observed horizontally to ensure the horizontality of the sample support box. In this process, Mr. Hu, when support shaft one rotates, it can drive the rotating disk to rotate, and the inner wall of the positioning hole squeezes the positioning ball, and pushes the telescopic plate to move, and the elastic sheet is deformed, and finally the positioning ball is separated from the positioning hole. Under the action of force, the positioning ball slides along the surface of the rotating disk. When the positioning ball slides into the next positioning hole, the rotating disk can be limited, so as to accurately control the position of the sample support box.

[0012] The beneficial effects of the utility model are as follows: the scheme pushes the displacement tester to contact the sample support box so that the plug block is inserted into the sample support box, and under the deformation action of the spring, the plug plate can be inserted into the plug block, and the plug block is limited, so that the plug block drives the displacement tester to be placed stably, which is convenient for operators to quickly install and use; through the setting of the level meter, the horizontality of the sample support box can be tested to ensure the horizontality of the sample support box; under the action of the motor, gear two, gear one and other structures, the support shaft one can drive the sample support box to rotate, and the position of the sample support box can be adjusted horizontally; under the action of the positioning hole, positioning ball and other structures, the rotating disk can be limited, and then the position of the sample support box can be accurately processed.

[0013] Furthermore, the overall shape of the connecting piece is triangular, and the connecting piece is made of rubber material. Through the setting of the connecting piece, it is convenient to pull the end head to move, and the rubber material has good skin-friendliness.

[0014] Furthermore, one side of the spring is welded to the sample support box, and the other end of the spring is welded to the horizontal portion of the plug plate. Through the provision of the spring, the plug plate can be connected for use.

[0015] Furthermore, a gear 1 is fixedly sleeved on the outer side of the support shaft 1, a motor is fixedly installed on the front side of the fixed seat, a rotating disk is fixedly sleeved on the outer side of the support shaft 1, a positioning hole is provided on the back side of the rotating disk, a telescopic plate is slidably connected to the inside of the fixed seat, a positioning ball is fixedly connected to the end face of the telescopic plate, the positioning ball is slidably connected to the positioning hole, an elastic sheet is bonded to the rear side of the positioning ball, and the other end of the elastic sheet is bonded to the fixed seat, and through the arrangement of the motor, gear 2 and other structures, the support shaft 1 can be driven to drive the sample support box to deflect, and under the action of the positioning hole and the positioning ball, the rotating disk can be limited, thereby accurately controlling the position of the sample support box.

[0016] Furthermore, a gear 2 is fixedly sleeved on the outer side of the output shaft of the motor, and the gear 2 is meshed with the gear 1. Through the meshing setting, when the gear 2 rotates, it can drive the gear 1 to rotate.

[0017] Furthermore, there are a plurality of positioning holes, which are arranged in a circular array on the rotating disk. The positioning holes are arranged to facilitate the use of the positioning balls for clamping.

[0018] Furthermore, two elastic sheets are provided, and the two elastic sheets are symmetrically distributed on the positioning ball. Through the provision of the elastic sheets, the positioning ball can be tightened for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the overall structure of the novel concrete shrinkage test device according to an embodiment of the present invention;

[0020] Figure 2 A novel concrete shrinkage test device according to an embodiment of the present invention Figure 1 A top-down perspective view of

[0021] Figure 3 A novel concrete shrinkage test device according to an embodiment of the present invention Figure 1 A front cross-sectional view of

[0022] Figure 4 A novel concrete shrinkage test device according to an embodiment of the present invention Figure 2 A magnified image of point A;

[0023] Figure 5 A novel concrete shrinkage test device according to an embodiment of the present invention Figure 3 Enlarged view of the end. DETAILED DESCRIPTION

[0024] The following is further described in detail through specific implementation methods:

[0025] The figure marks in the drawings of the specification include: base 1, fixed base 2, support shaft one 3, support shaft two 4, sample support box 5, level 6, glass partition 7, displacement tester 8, plug block 9, plug plate 10, end 11, connecting piece 12, spring 13, gear one 14, motor 15, gear two 16, rotating disk 17, positioning hole 18, telescopic plate 19, positioning ball 20, elastic sheet 21.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, this embodiment provides a new type of concrete shrinkage test device, including a base 1, a fixed seat 2 is fixedly connected to the middle of the upper end of the base 1, a support shaft 1 3 is installed inside the fixed seat 2 through a bearing, a support shaft 2 4 is installed inside the fixed seat 2 through a bearing, a sample support box 5 is fixedly connected between the support shaft 2 4 and the support shaft 1 3, a level 6 is arranged on the left side of the front of the sample support box 5, a glass partition 7 is fixedly connected to the inner wall of the sample support box 5, and a displacement tester 8 is contacted with the inner right wall of the sample support box 5;

[0027] The right end of the displacement tester 8 is fixedly connected with an insert block 9, which is slidably connected to the sample support box 5. The interior of the sample support box 5 is slidably connected with an insert plate 10, which is slidably connected to the insert block 9. The upper end of the insert plate 10 is fixedly connected with an end head 11, which is in contact with the sample support box 5. The upper end of the end head 11 is fixedly connected with a connecting piece 12, and a spring 13 is provided on the outer side of the insert plate 10.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, the connecting piece 12 is in a triangular shape as a whole and is made of rubber. The setting of the connecting piece 12 facilitates the pulling of the end 11 to move, and the rubber material has good skin-friendliness. One side of the spring 13 is welded to the sample support box 5, and the other end of the spring 13 is welded to the horizontal part of the plug board 10. The plug board 10 can be connected and used through the setting of the spring 13.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a gear 14 is fixedly sleeved on the outer side of the support shaft 3, a motor 15 is fixedly installed on the front side of the fixed seat 2, a rotating disk 17 is fixedly sleeved on the outer side of the support shaft 3, a positioning hole 18 is provided on the back side of the rotating disk 17, a telescopic plate 19 is slidably connected to the inside of the fixed seat 2, a positioning ball 20 is fixedly connected to the end face of the telescopic plate 19, the positioning ball 20 is slidably connected to the positioning hole 18, an elastic sheet 21 is bonded to the rear side of the positioning ball 20, and the other end of the elastic sheet 21 is bonded to the fixed seat 2, through the arrangement of the motor 15, the gear 16 and other structures, the support shaft 3 can be driven to drive the sample support box 5 to deflect, and under the action of the positioning hole 18 and the positioning ball 20, the rotating disk 17 can be limited, and then the position of the sample support box 5 can be accurately controlled.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a gear 2 16 is fixedly sleeved on the outer side of the output shaft of the motor 15, and the gear 2 16 is meshed with the gear 14. Through the meshing setting, when the gear 2 16 rotates, the gear 14 can be driven to rotate. A plurality of positioning holes 18 are provided, and the plurality of positioning holes 18 are arranged in a circular array on the rotating disk 17. Through the setting of the positioning holes 18, it is convenient to cooperate with the positioning ball 20 for clamping and use. Two elastic sheets 21 are provided, and the two elastic sheets 21 are symmetrically distributed on the positioning ball 20. Through the setting of the elastic sheet 21, the positioning ball 20 can be tightened for use.

[0031] The specific implementation process of the utility model is as follows: by pulling the connecting piece 12 upward to move, the end 11 is driven to move, and then the plug plate 10 is driven to move, the spring 13 is deformed, and then the displacement tester 8 is pushed to contact with the sample support box 5, so that the plug block 9 is inserted into the sample support box 5, and the connecting piece 12 is loosened to make the spring 13 recover its deformation, so as to push the plug plate 10 to insert the plug block 9, and the plug block 9 is plugged and limited, so that the plug block 9 drives the displacement tester 8 to be placed stably, which is convenient for the operator to quickly install and use. Under the action of the displacement tester 8, the concrete shrinkage displacement inside the subsequent sample support box 5 can be tested and used;

[0032] The starting motor 15 drives the output shaft to rotate, so as to drive the gear 2 16 to rotate. Under the meshing relationship, the gear 2 16 drives the gear 14 to rotate, and then drives the support shaft 1 3 to rotate, so as to drive the sample support box 5 to deflect, adjust the position of the sample support box 5, and cooperate with the level 6 to observe the position of the sample support box 5 horizontally to ensure the horizontality of the sample support box 5. In this process, when the support shaft 1 3 rotates, it can drive the rotating disk 17 to rotate, the inner wall of the positioning hole 18 squeezes the positioning ball 20, and pushes the telescopic plate 19 to move, and the elastic sheet 21 is deformed, and finally the positioning ball 20 is separated from the positioning hole 18. Under the action of force, the positioning ball 20 slides along the surface of the rotating disk 17. When the positioning ball 20 slides into the next positioning hole 18, the rotating disk 17 can be limited, so as to accurately control the position of the sample support box 5.

[0033] This solution pushes the displacement tester 8 to contact the sample support box 5, so that the plug block 9 is inserted into the sample support box 5. Under the deformation action of the spring 13, the plug plate 10 can be inserted into the plug block 9 to limit the plug block 9, so that the plug block 9 drives the displacement tester 8 to be placed stably, which is convenient for the operator to quickly install and use. Through the setting of the level 6, the horizontality of the sample support box 5 can be tested to ensure the horizontality of the sample support box 5. Under the action of the motor 15, the gear two 16, the gear one 14 and other structures, the support shaft one 3 can drive the sample support box 5 to rotate, and the position of the sample support box 5 can be adjusted horizontally. Under the action of the positioning hole 18, the positioning ball 20 and other structures, the rotating disk 17 can be limited, and then the position of the sample support box 5 can be accurately processed.

[0034] It should be noted in advance that, in the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 a direct connection, or an indirect connection 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.

[0035] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A new concrete shrinkage test device, comprising a base, characterized in that: A fixing seat is fixedly connected to the middle part of the upper end of the base, a support shaft 1 is installed inside the fixing seat through a bearing, a support shaft 2 is installed inside the fixing seat through a bearing, a sample support box is fixedly connected between the support shaft 2 and the support shaft 1, a level is arranged on the left side of the front of the sample support box, a glass partition is fixedly connected to the inner wall of the sample support box, and the inner right side wall of the sample support box contacts the displacement tester; The right end of the displacement tester is fixedly connected with an insert block, and the insert block is slidably connected to the sample support box. The interior of the sample support box is slidably connected with an insert plate, and the insert plate is slidably connected to the insert block. The upper end of the insert plate is fixedly connected with an end head, and the end head contacts the sample support box. The upper end of the end head is fixedly connected with a connecting piece, and a spring is arranged on the outer side of the insert plate.

2. The novel concrete shrinkage test device according to claim 1 is characterized in that: The connecting piece is in a triangular shape as a whole and is made of rubber.

3. The novel concrete shrinkage test device according to claim 1 is characterized in that: One side of the spring is welded to the sample supporting box, and the other end of the spring is welded to the horizontal part of the inserting plate.

4. The novel concrete shrinkage test device according to claim 1 is characterized in that: The outer side of the support shaft 1 is fixedly sleeved with a gear 1, the front side of the fixed seat is fixedly mounted with a motor, the outer side of the support shaft 1 is fixedly sleeved with a rotating disk, the back side of the rotating disk is provided with a positioning hole, the interior of the fixed seat is slidably connected with a telescopic plate, the end face of the telescopic plate is fixedly connected with a positioning ball, the positioning ball is slidably connected to the positioning hole, the rear side of the positioning ball is bonded with an elastic sheet, and the other end of the elastic sheet is bonded to the fixed seat.

5. The novel concrete shrinkage test device according to claim 4 is characterized in that: A second gear is fixedly sleeved on the outer side of the output shaft of the motor, and the second gear is meshed with the first gear.

6. The novel concrete shrinkage test device according to claim 4 is characterized by: There are a plurality of positioning holes, and the plurality of positioning holes are arranged in a ring array on the rotating disk.

7. The novel concrete shrinkage test device according to claim 4 is characterized by: Two elastic sheets are provided, and the two elastic sheets are symmetrically distributed on the positioning ball.

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