Concrete impermeability test device

Abstract

The utility model relates to the technical field of concrete, in particular to a concrete impermeability test device which comprises a base, a water injection assembly and an air cylinder, a test piece is placed on the inner wall of the base, the concrete impermeability test device further comprises a test piece positioning assembly, and the test piece positioning assembly comprises two abutting blocks, two connecting rods, two threaded sliding blocks, a two-way screw rod, a fixing component and an auxiliary supporting component. The two abutting blocks are fixedly connected with the two connecting rods respectively, the two connecting rods are fixedly connected with the two threaded sliding blocks respectively, the two threaded sliding blocks are in threaded connection with the two-way screw and are arranged at the two ends of the two-way screw in a sleeving mode respectively, the two-way screw is rotationally connected with the base through a bearing, and the fixing component is connected with the two-way screw. The auxiliary supporting component is fixedly connected with the abutting block, so that the test piece is placed and positioned, the test piece is ensured to be accurately placed under the water injection assembly for sealing, and the effect of a test result is prevented from being influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete technical field especially relates to a concrete impermeability test device. BACKGROUND

[0002] The concrete impermeability test device is a device for measuring the water permeability of concrete. By selecting the appropriate device and strictly following the operation requirements, the impermeability of the concrete can be accurately evaluated, providing an important reference for engineering design and construction. The existing device first places a water-permeable plate in the shell during testing, then places the test piece. Then put in the support ring. Add water in the pressurizing cavity, and pressurize through the pressurizing pipe. The pressure pushes the sealing sleeve to tightly wrap the sample, playing a role in preventing seepage. The device wraps the test piece around during the experiment, only conducts a leakage experiment from top to bottom, and cannot detect the side surface.

[0003] The prior art CN221224510U discloses an environmental protection type concrete impermeability test device, which comprises a base, a test piece is placed on the inner wall of the base, a detection groove for water injection detection is formed in the top of the test piece, support blocks are fixedly connected to the two sides of the base, air cylinders are fixedly connected to the tops of the two support blocks, water injection assemblies are arranged above the detection groove, the detection groove is sealed by the water injection assemblies driven by the air cylinders and abutting against the top of the test piece, so that the test piece can be comprehensively detected, water is injected into the circular frame through the water injection hole, the water pressure pushes the sliding column to cover the top of the detection groove for sealing, and the bottom of the sliding column is fixedly connected with soft sealing material to improve the sealing performance.

[0004] However, in the above-mentioned technology, the water injection assembly is driven by the air cylinder to abut against the top of the test piece to seal the detection groove, so as to facilitate comprehensive detection of the test piece. However, the test piece is not positioned when placed on the inner wall of the base, which may cause the water injection assembly to be unable to accurately seal, thereby affecting the test result. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a concrete impermeability test device, which solves the problem that the test piece is not positioned when placed on the inner wall of the base in the prior art, which may cause the water injection assembly to be unable to accurately seal, thereby affecting the test result.

[0006] To achieve the above-mentioned purpose, the utility model provides a concrete impermeability test device, which comprises a base, a water injection assembly and an air cylinder, a test piece is placed on the inner wall of the base, the two sides of the base are respectively provided with the air cylinder, the two sides of the water injection assembly are respectively fixedly connected with the extension ends of the two air cylinders,

[0007] Further comprising a test piece positioning assembly;

[0008] The test piece positioning assembly comprises two abutting blocks, two connecting rods, two threaded sliding blocks, a bidirectional screw rod, a fixing member and an auxiliary support member, the two abutting blocks are fixedly connected with the two connecting rods and located at one end of the two connecting rods close to the test piece, the two connecting rods are fixedly connected with the two threaded sliding blocks and located at one end of the two threaded sliding blocks, the two threaded sliding blocks are threadedly connected with the bidirectional screw rod and sleeved at two ends of the bidirectional screw rod, the bidirectional screw rod is rotatably connected with the base through a bearing and extends into the base, the fixing member is connected with the bidirectional screw rod and located at one end of the bidirectional screw rod extending out of the base, and the auxiliary support member is fixedly connected with the abutting block and located at one end of the abutting block away from the connecting rod.

[0009] The fixing member comprises a rotating disc and a fastening screw rod, the rotating disc is fixedly connected with the bidirectional screw rod and located at one end of the bidirectional screw rod extending out of the base, and the fastening screw rod is threadedly connected with the rotating disc and penetrates through the rotating disc.

[0010] The base has a mounting sliding groove and a through hole, the mounting sliding groove is arranged on the right side wall of the inner wall of the base and matched with the threaded sliding block, and the through hole is arranged on the right end of the front side of the base and matched with the bidirectional screw rod.

[0011] The auxiliary support member comprises an auxiliary support rod and a ball, the auxiliary support rod is fixedly connected with the abutting block and located at one end of the abutting block opposite to the connecting rod, and the ball is rotatably connected with the auxiliary support rod and embedded in the auxiliary support rod.

[0012] The base further comprises an auxiliary recess and a ball sliding groove, the auxiliary recess is arranged on the left side wall of the inner wall of the base and matched with the auxiliary support rod, and the ball sliding groove is arranged at the lower end of the auxiliary recess and matched with the ball sliding groove.

[0013] The utility model discloses a kind of concrete impermeability test devices, the test piece is placed on the inner wall of the base, first by the fixed component driving the bidirectional screw rod rotation, the bidirectional screw rod rotation thread drives the two threaded slides of the installation sliding groove both ends portion, two threaded slides are driven by two connecting rods respectively two abutment blocks are mutually close, gradually close the front and rear ends of the test piece, according to the condition that two butt blocks adhere to the test piece, adjust the placement position of the test piece, until two abutment blocks are completely adhered to the front and rear sides of the test piece respectively, ensure that the test piece is accurately placed below the water injection assembly, then by the cylinder driving the water injection assembly moves downwards to accurately seal the top detection groove of the test piece, then by the water injection assembly carries out water injection and carries out concrete impermeability test, and then realize the test piece is placed and positioned by the test piece positioning assembly, ensure that the test piece is accurately placed below the water injection assembly and sealed, avoid affecting test result. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows.

[0015] Fig. 1 It is the overall structure schematic diagram of the concrete impermeability test device of the utility model.

[0016] Fig. 2 It is the overhead connection schematic diagram of the base, test piece and test piece positioning assembly of the utility model.

[0017] Fig. 3 It is the connection structure schematic diagram of the base, test piece and test piece positioning assembly of the utility model.

[0018] In the drawing: 101-base, 102-water injection assembly, 103-cylinder, 104-abutment block, 105-connecting rod, 106-threaded slide, 107-bidirectional screw rod, 108-rotating disc, 109-fastening screw, 110-installation sliding groove, 111-through hole, 112-assistant support rod, 113-rolling ball, 114-assistant groove, 115-rolling ball sliding groove. DETAILED DESCRIPTION

[0019] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, the embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0020] First embodiment:

[0021] Please refer to Figs. 1 to 3 , wherein Fig. 1It is the whole structure schematic diagram of the concrete impermeability test device of the utility model, Fig. 2 It is the overhead connection schematic diagram of the base, test piece and test piece positioning assembly of the utility model, Fig. 3 It is the connection structure schematic diagram of the base, test piece and test piece positioning assembly of the utility model.

[0022] The utility model relates to a kind of concrete impermeability test devices: including base 101, water injection subassembly 102, cylinder 103 and test piece positioning assembly, the test piece positioning assembly includes two abutting blocks 104, two connecting rods 105, two threaded slides 106, bidirectional screw 107, fixed component and auxiliary support component, the fixed component includes turntable 108 and fastening screw 109, the base 101 has installation sliding slot 110 and through hole 111, the auxiliary support component includes auxiliary support 112 and ball 113, the base 101 also includes auxiliary recess 114 and ball sliding slot 115.It is understood that the foregoing scheme can be placed by test piece positioning assembly The test piece 116 placed in the inner wall of base 101 is positioned, ensure that test piece 116 is accurately placed below water injection subassembly 102, so that water injection subassembly 102 seals the top detection groove of test piece 116, avoid affecting test result.

[0023] In the embodiment, the test piece 116 is placed in the inner wall of the base 101, the two sides of the base 101 are respectively provided with the cylinder 103, and the two sides of the water injection subassembly 102 are respectively fixedly connected with the telescopic ends of the two cylinders 103. By opening a detection groove on the top of the test piece 116, the water injection subassembly 102 is driven by the telescopic extension of the two cylinders 103 to seal the detection groove on the top of the test piece 116, so as to facilitate comprehensive detection of the test piece 116. The water injection subassembly 102 is composed of a circular frame, a sliding column, a water injection hole, a sealing groove and a sealing ring. The water injection hole is arranged to inject water into the circular frame, and the sliding column at the lower end is covered to seal the top of the detection groove of the test piece 116 by water pressure. The bottom of the sliding column is fixedly connected with soft sealing material to improve the sealing performance. The top of the circular frame is fixedly connected with a water inlet pipe, and the water inlet pipe is in communication with the inside of the circular frame. A booster pump is fixedly installed at the middle position of the water inlet pipe. The booster pump is arranged in the water inlet pipe to increase the water pressure and improve the detection efficiency. The test piece 116 is fixedly connected with a water seepage plate at the bottom of the detection groove. The base 101 is slidably connected with a suction box below the water seepage plate for collecting seepage water.

[0024] Two abutting blocks 104 are respectively fixedly connected with two connecting rods 105 and located at one end of the two connecting rods 105 close to the test piece 116, the two connecting rods 105 are respectively fixedly connected with two threaded sliding blocks 106 and located at one end of the two threaded sliding blocks 106, the two threaded sliding blocks 106 are threadedly connected with the bidirectional screw rod 107 and respectively sleeved at two ends of the bidirectional screw rod 107, the bidirectional screw rod 107 is rotatably connected with the base 101 through a bearing and extends into the base 101, the fixed member is connected with the bidirectional screw rod 107 and located at one end of the bidirectional screw rod 107 extending out of the base 101, and the auxiliary supporting member is fixedly connected with the abutting block 104 and located at one end of the abutting block 104 away from the connecting rod 105. The mounting sliding groove 110 is arranged on the right side wall of the inner wall of the base 101 and matched with the threaded sliding block 106, and the through hole 111 is arranged on the front side of the right end of the base 101 and matched with the bidirectional screw rod 107.The left upper end of the inner wall of the base 101 is provided with the mounting sliding groove 110, the cross-sectional shape of the mounting sliding groove 110 is cross-shaped, matched with the shape of the two threaded sliding blocks 106, the mounting sliding groove 110 provides conditions for the sliding installation of the threaded sliding block 106, the through hole 111 penetrates the base 101 and communicates with the mounting sliding groove 110, the bidirectional screw rod 107 extends into the mounting sliding groove 110 from the through hole 111, and both ends of the bidirectional screw rod 107 are rotatably connected with the base 101 through bearings, and the threads of the two ends of the bidirectional screw rod 107 are opposite, respectively matched with the inner side threads of the threaded holes of the threaded sliding blocks 106 sleeved on the two ends of the bidirectional screw rod 107, the bidirectional screw rod 107 is driven to rotate by the fixed member, the bidirectional screw rod 107 drives the two threaded sliding blocks 106 to rotate by threads, and the two threaded sliding blocks 106 move closer to or farther away from each other under the rotation limiting of the mounting sliding groove 110, the rotation of the bidirectional screw rod 107 is limited by the fixed member after the position is fixed, and the two threaded sliding blocks 106 are positioned, one end of each of the two threaded sliding blocks 106 extending into the inner cavity of the base 101 is fixedly connected with the connecting rod 105, the two connecting rods 105 are fixedly provided with the abutting blocks 104, the two abutting blocks 104 are oppositely installed and located on the center line of the inner cavity of the base 101, the distance between the two abutting blocks 104 is adjusted by the movement of the two threaded sliding blocks 106, and the abutting blocks 104 are positioned and clamped for placing the test piece 116, and the other end of each of the two abutting blocks 104 is connected with the auxiliary supporting member, the auxiliary supporting member is slidably connected with the base 101, and the installation and sliding of the abutting blocks 104 are more stable through the auxiliary supporting assembly; therefore, before the test piece 116 is placed in the base 101 for the impermeability test, the bidirectional screw rod 107 is driven to rotate by the fixed member, the two threaded sliding blocks 106 at the two ends of the mounting sliding groove 110 are driven to move by the rotation of the bidirectional screw rod 107, the two threaded sliding blocks 106 drive the two abutting blocks 104 to approach each other through the two connecting rods 105, and gradually approach the front and rear ends of the test piece 116, the placement position of the test piece 116 is adjusted according to the abutting of the two abutting blocks on the test piece 116, until the two abutting blocks 104 are completely abutted on the front and rear sides of the test piece 116 respectively, so that the test piece 116 is accurately placed below the water injection assembly 102, and the top detection groove of the test piece 116 is accurately sealed by the water injection assembly 102.

[0025] Second, the rotating disc 108 and the bidirectional screw rod 107 are fixedly connected, and located at one end of the bidirectional screw rod 107 extending out of the base 101; the fastening screw rod 109 is threadedly connected with the rotating disc 108, and penetrates through the rotating disc 108. The rotating disc 108 is a circular structure, and a plurality of rotating rods are uniformly arranged on the arc-shaped outer side. The rotating disc 108 drives the bidirectional screw rod 107 to rotate by rotating. A threaded hole is transversely arranged on the rotating disc 108, the inner diameter of the thread is matched with the thread of the fastening screw rod 109, the fastening screw rod 109 is spirally installed on the rotating disc 108, and the rotating disc 108 is limited to rotate by rotating the spiral end of the fastening screw rod 109 against the base 101, thereby fixing the positioning position of the two abutting blocks 104.

[0026] Meanwhile, the auxiliary supporting rod 112 is fixedly connected with the abutting block 104, and located at one end of the abutting block 104 opposite to the connecting rod 105; the ball 113 is rotatably connected with the auxiliary supporting rod 112, and embedded in the auxiliary supporting rod 112. The auxiliary groove 114 is arranged on the left side wall of the inner wall of the base 101, and matched with the auxiliary supporting rod 112; the ball sliding groove 115 is arranged at the lower end of the auxiliary groove 114, and matched with the ball sliding groove 115. The number of the auxiliary supporting rod 112 is two, and respectively fixedly connected with the two abutting blocks 104. The ends of the two auxiliary supporting rods 112 away from the abutting blocks 104 extend into the auxiliary grooves 114 of the base 101, the auxiliary grooves 114 provide conditions for the sliding installation of the two auxiliary supporting rods 112, the ends of the two auxiliary supporting rods 112 are rotatably embedded with the balls 113, the bottoms of the two balls 113 extend into the ball sliding grooves 115, the auxiliary grooves 114 and the ball sliding grooves 115 provide adjustment for the sliding installation and matched movement of the auxiliary supporting rods 112 and the balls 113, and the auxiliary supporting rods 112 and the balls 113 make the installation and sliding of the abutting blocks 104 more stable.

[0027] When the concrete impermeability test device is used, the test piece 116 is placed on the inner wall of the base 101, the bidirectional screw rod 107 is first driven to rotate through the fixing member, the bidirectional screw rod 107 rotates the two threaded sliding blocks 106 located at both ends of the mounting sliding groove 110 through threaded driving, the two threaded sliding blocks 106 drive the two abutting blocks 104 to approach each other through the two connecting rods 105 respectively, gradually approach the front and rear ends of the test piece 116, according to the abutting condition of the two abutting blocks 104 and the test piece 116, the placement position of the test piece 116 is adjusted, until the two abutting blocks 104 are completely attached to the front and rear sides of the test piece 116 respectively, the test piece 116 is accurately placed below the water injection assembly 102, then the water injection assembly 102 is driven downward by the air cylinder 103 to accurately seal the top detection groove of the test piece 116, then water injection is carried out through the water injection assembly 102 to carry out the concrete impermeability test, and then the test piece positioning assembly is used for placing and positioning the test piece 116, ensuring that the test piece 116 is accurately placed below the water injection assembly 102 for sealing, and avoiding affecting the test result.

[0028] The above disclosure is only one or more preferred embodiments of the application, and cannot limit the scope of the application. Those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the application still belong to the scope covered by the application.

Claims

1. A concrete impermeability test device, comprising a base, a water injection assembly and a pneumatic cylinder, a test piece is placed on the inner wall of the base, two pneumatic cylinders are arranged on the two sides of the base respectively, and the two sides of the water injection assembly are fixedly connected with the telescopic ends of the two pneumatic cylinders respectively, characterized in that, it further comprises a test piece positioning assembly; the test piece positioning assembly comprises two abutting blocks, two connecting rods, two threaded sliding blocks, a bidirectional screw rod, a fixing member and an auxiliary supporting member, the two abutting blocks are fixedly connected with the two connecting rods respectively and located at one end of the two connecting rods close to the test piece, the two connecting rods are fixedly connected with the two threaded sliding blocks respectively and located at one end of the two threaded sliding blocks, the two threaded sliding blocks are threadedly connected with the bidirectional screw rod and are sleeved on the two ends of the bidirectional screw rod respectively, the bidirectional screw rod is rotatably connected with the base through a bearing and extends into the base, the fixing member is connected with the bidirectional screw rod and located at one end of the bidirectional screw rod extending out of the base, and the auxiliary supporting member is fixedly connected with the abutting block and located at one end of the abutting block away from the connecting rod.

2. The concrete impermeability test device according to claim 1, characterized in that, the fixing member comprises a rotating disc and a fastening screw rod, the rotating disc is fixedly connected with the bidirectional screw rod and located at one end of the bidirectional screw rod extending out of the base, and the fastening screw rod is threadedly connected with the rotating disc and penetrates through the rotating disc.

3. The concrete impermeability test device according to claim 1, characterized in that, the base is provided with a mounting sliding groove and a through hole, the mounting sliding groove is arranged on the right side wall of the inner wall of the base and matched with the threaded sliding block, and the through hole is arranged on the front side of the right end of the base and matched with the bidirectional screw rod.

4. The concrete impermeability test device according to claim 1, characterized in that, the auxiliary supporting member comprises an auxiliary supporting rod and a ball, the auxiliary supporting rod is fixedly connected with the abutting block and located at one end of the abutting block opposite to the connecting rod, and the ball is rotatably connected with the auxiliary supporting rod and embedded in the auxiliary supporting rod.

5. The concrete impermeability test device according to claim 4, characterized in that, the base further comprises an auxiliary groove and a ball sliding groove, the auxiliary groove is arranged on the left side wall of the inner wall of the base and matched with the auxiliary supporting rod, and the ball sliding groove is arranged at the lower end of the auxiliary groove and matched with the ball sliding groove.

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