Concrete compression resistance test mold

By introducing a limiting spring and sealing block assembly into the concrete compressive strength test mold, combined with a hydraulic rod and a motor-driven adjustment assembly, the problem of complex air pressure control in the prior art is solved, realizing automated demolding and mixing defoaming, and improving the convenience and applicability of the equipment.

CN224122254UActive Publication Date: 2026-04-14HENAN NUOLIN NEW MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing concrete compressive strength test molds require precise control of air pressure during demolding. If the air pressure is too low, demolding may not be possible, while if the air pressure is too high, the specimen may be damaged. In addition, manual assistance is required, and the equipment requirements are high.

Method used

The system utilizes a limiting spring and sealing block assembly within the mold box, along with a limiting slide and hydraulic rod, to achieve automated demolding. It is also equipped with a motor-driven adjustment assembly for convenient demolding and agitation/defoaming.

Benefits of technology

It achieves the integrity and convenient demolding of concrete specimens, avoids the complexity of air pressure control and manual operation, and improves the flexibility and applicability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of compression-resistant test molds, and discloses a concrete compression-resistant test mold which comprises a test mold shell, and a demolding assembly is arranged in the test mold shell. The test mold box is slidably placed in the test mold shell, then the sealing block is attached to the bottom of the test mold box through the thrust of the limiting spring in the limiting box, meanwhile, the sealing block drives the guide limiting block to move upwards along the limiting sliding groove, and then concrete is poured into the test mold box; when the concrete in the test mold box needs to be demolded, a hydraulic rod is operated, the hydraulic rod pushes a piston rod towards the test mold box, and then the piston rod downwards pushes a pressurizing panel, so that the pressurizing panel extrudes the concrete in the test mold box towards a limiting box; thus, concrete in the test mold box downwards extrudes a sealing block, the sealing block downwards extrudes a limiting spring, and the sealing block downwards drives a guide limiting block to slide along a limiting sliding groove.
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Description

Technical Field

[0001] This utility model relates to the field of compressive strength test mold technology, and in particular to a concrete compressive strength test mold. Background Technology

[0002] A concrete compressive strength test mold is a tool used to test the compressive strength of concrete. In construction engineering and materials laboratories, it is the standard equipment for testing concrete strength. By pouring a concrete sample into the mold and curing it, the compressive strength of the concrete is ultimately evaluated through a compression test.

[0003] Most existing concrete compressive strength test molds use air-blowing demolding, which requires precise control of air pressure. If the air pressure is too low, demolding may not be successful, making it impossible to remove the specimen; if the air pressure is too high, it may damage the specimen or destroy its surface. Therefore, air pressure control requires precise adjustment, which places high demands on the equipment and requires manual assistance. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a concrete compressive strength test mold.

[0005] This utility model is achieved by the following technical solution: a concrete compressive strength test mold, including a test mold shell, a demolding component inside the test mold shell, and an adjustment component inside the test mold shell.

[0006] The demolding assembly includes a test mold box, which is slidably connected to the inner wall of the test film shell. A limit box is slidably connected to the inner wall of the test film shell. A limit spring is fixedly connected to the bottom of the inner wall of the limit box. A limit groove is formed on the surface of the limit box. A sealing block is fixedly connected to the end of the limit spring away from the limit box. The top of the sealing block contacts the bottom of the test mold box. A guide limit block is fixedly connected to the bottom of the sealing block. The outer wall of the guide limit block is slidably connected to the inner wall of the limit groove. A limit rod is fixedly connected to the inner wall of the test film shell. The top of the test mold box is slidably connected to the bottom of the limit rod. A support rod is fixedly connected to the top of the test film shell. A support seat is provided inside the support rod. A guide groove is formed on the inner wall of the support seat. A support slider is slidably connected to the inner wall of the guide groove. A hydraulic rod is fixedly connected to the inner wall of the support slider. A piston rod is slidably connected to the inner wall of the hydraulic rod. A pressure panel is fixedly connected to the end of the piston rod away from the hydraulic rod.

[0007] As a further improvement to the above solution, several limiting springs are provided, two guide limiting blocks are provided, the two guide limiting blocks are symmetrically arranged around the center of the limiting box, and two limiting rods are provided, the two limiting rods are symmetrically arranged around the trial mold box.

[0008] As a further improvement to the above solution, two limiting grooves are provided, and two support seats are provided, with the two support seats arranged symmetrically about the support slider.

[0009] The above technical solution involves sliding the test mold box inside the test film shell, and then using the pushing force of the limiting spring inside the limiting box to attach the sealing block to the bottom of the test mold box. At the same time, the sealing block drives the guide limiting block to move upward along the limiting groove, and then concrete is poured into the test mold box, thereby preventing the concrete inside the test mold box from leaking out through the sealing block.

[0010] As a further improvement to the above solution, the adjustment component includes a motor support base, which is fixedly connected to the top of the support base. A drive motor is fixedly connected to the inner wall of the motor support base, and a threaded rod is fixedly connected to the output end of the drive motor. The outer wall of the threaded rod is threadedly connected to the inner wall of the support slider, and the end of the threaded rod away from the drive motor is rotatably connected to a limit seat.

[0011] As a further improvement to the above solution, a second limiting groove is provided on the inner wall of the supporting top rod, the outer wall of the limiting seat is slidably connected to the inner wall of the second limiting groove, a second guide groove is provided on the inner wall of the supporting top rod, and the outer wall of the supporting seat is slidably connected to the inner wall of the second guide groove.

[0012] As a further improvement to the above solution, a rotating rod is rotatably connected to the inner wall of the support slider. The rotating rod passes through the inner wall of the support slider and extends therethrough. A rotating handle is fixedly connected to the top of the rotating rod.

[0013] As a further improvement to the above solution, the bottom of the rotating rod is rotatably connected to the inner wall of the limiting seat, the rotating rod passes through the inner wall of the limiting seat and extends therethrough, and a stirring rod is fixedly connected to the end of the rotating rod away from the rotating handle.

[0014] Using the above technical solution, the output end of the drive motor rotates the threaded rod, causing the support slider to slide downwards along the surface of the threaded rod and the guide groove. At the same time, the support slider drives the hydraulic rod and the rotating rod to move along the inner wall of the limit seat towards the mold box.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention involves sliding the test mold box inside the test mold shell. Then, the limiting spring inside the limiting box pushes the sealing block against the bottom of the test mold box. Simultaneously, the sealing block drives the guide limiting block upwards along the limiting groove. Concrete is then poured into the test mold box, thus preventing concrete leakage through the sealing block. When demolding is required, a hydraulic rod is operated. The hydraulic rod pushes the piston rod towards the test mold box, and then pushes the piston rod downwards to the pressure panel, causing the pressure panel to pressurize the test mold box. The concrete inside the mold box is squeezed towards the limiting box, which in turn squeezes the sealing block downwards. The sealing block then squeezes the limiting spring downwards, and at the same time, the sealing block moves the guide limiting block downwards along the limiting groove, causing the concrete inside the mold box to slide. This ensures the integrity of the concrete inside the mold box. Then, under the upward thrust of the limiting groove, the concrete inside the mold box is made flush with it, and the mold box is then removed outwards, thus removing the concrete inside the mold box. This ensures the integrity and convenience of the concrete test film.

[0017] This invention utilizes the output of a drive motor to rotate a threaded rod, causing a support slider to slide downwards along the surface of the threaded rod and the guide groove. Simultaneously, the support slider drives a hydraulic rod and a rotating rod to move along the inner wall of the limiting seat towards the test mold box. This causes the rotating rod to push the mixing rod downwards, allowing it to enter the concrete inside the test mold box. By rotating the handle, the rotating rod rotates, which in turn rotates the mixing rod, thus agitating and defoaming the concrete inside the test mold box. This prevents voids in the concrete test block from affecting the test results. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the demolding component structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the sealing block of this utility model;

[0021] Figure 4 This is a schematic diagram of the pressure panel structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the adjustment component structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the limiting slide groove structure of this utility model;

[0024] Figure 7 This is a schematic diagram of the limiting seat structure of this utility model.

[0025] Explanation of key symbols:

[0026] 1. Test film shell; 2. Demolding assembly; 201. Test mold box; 202. Limiting box; 203. Limiting spring; 204. Limiting groove; 205. Sealing block; 206. Guide limiting block; 207. Limiting rod; 208. Supporting top rod; 209. Support seat; 210. Supporting slider; 211. Guide groove; 212. Hydraulic rod; 213. Piston rod; 214. Pressure panel; 3. Adjustment assembly; 301. Motor support seat; 302. Drive motor; 303. Threaded rod; 304. Limiting seat; 305. Second limiting groove; 306. Second guide groove; 307. Rotating rod; 308. Rotating handle; 309. Stirring rod. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] Example:

[0029] Please combine Figure 1-7 This embodiment provides a concrete compressive strength test mold, including a test mold shell 1, a demolding component 2 inside the test mold shell 1, and an adjustment component 3 inside the test mold shell 1.

[0030] Demolding assembly 2 includes a trial mold box 201, which is slidably connected to the inner wall of the trial film shell 1. A limit box 202 is slidably connected to the inner wall of the trial film shell 1. A limit spring 203 is fixedly connected to the bottom of the inner wall of the limit box 202. A limit groove 204 is formed on the surface of the limit box 202. A sealing block 205 is fixedly connected to the end of the limit spring 203 away from the limit box 202. The top of the sealing block 205 contacts the bottom of the trial mold box 201. A guide limit block 206 is fixedly connected to the bottom of the sealing block 205. The outer wall of the guide limit block 206 is slidably connected to the inner wall of the limit groove 204. A limiting rod 207 is fixedly connected to the inner wall of the test film shell 1. The top of the test mold box 201 is slidably connected to the bottom of the limiting rod 207. A support rod 208 is fixedly connected to the top of the test film shell 1. A support seat 209 is provided inside the support rod 208. A guide groove 211 is opened on the inner wall of the support seat 209. A support slider 210 is slidably connected to the inner wall of the guide groove 211. A hydraulic rod 212 is fixedly connected to the inner wall of the support slider 210. A piston rod 213 is slidably connected to the inner wall of the hydraulic rod 212. A pressure panel 214 is fixedly connected to the end of the piston rod 213 away from the hydraulic rod 212.

[0031] Several limit springs 203 are provided, two guide limit blocks 206 are provided, the two guide limit blocks 206 are symmetrically arranged with the center of the limit box 202, and two limit rods 207 are provided, the two limit rods 207 are symmetrically arranged with the trial mold box 201 as the center.

[0032] Two limit slides 204 are provided, and two support seats 209 are provided. The two support seats 209 are symmetrically arranged with the support slider 210 as the center.

[0033] The adjustment assembly 3 includes a motor support 301, which is fixedly connected to the top of the support 209. A drive motor 302 is fixedly connected to the inner wall of the motor support 301. A threaded rod 303 is fixedly connected to the output end of the drive motor 302. The outer wall of the threaded rod 303 is threadedly connected to the inner wall of the support slider 210. The end of the threaded rod 303 away from the drive motor 302 is rotatably connected to a limit seat 304.

[0034] The inner wall of the support rod 208 is provided with a limiting groove 305, and the outer wall of the limiting seat 304 is slidably connected to the inner wall of the limiting groove 305. The inner wall of the support rod 208 is provided with a guide groove 306, and the outer wall of the support seat 209 is slidably connected to the inner wall of the guide groove 306.

[0035] A rotating rod 307 is rotatably connected to the inner wall of the support slider 210. The rotating rod 307 passes through the inner wall of the support slider 210 and extends therein. A rotating handle 308 is fixedly connected to the top of the rotating rod 307.

[0036] The bottom of the rotating rod 307 is rotatably connected to the inner wall of the limiting seat 304. The rotating rod 307 passes through the inner wall of the limiting seat 304 and extends therethrough. The end of the rotating rod 307 away from the rotating handle 308 is fixedly connected to the stirring rod 309.

[0037] The implementation principle of a concrete compressive strength test mold in this embodiment is as follows: the test mold box 201 is slidably placed inside the test mold shell 1, and then the sealing block 205 is attached to the bottom of the test mold box 201 by the pushing force of the limiting spring 203 inside the limiting box 202. At the same time, the sealing block 205 drives the guide limiting block 206 to move upward along the limiting groove 204, and then concrete is poured into the test mold box 201, thereby preventing the concrete inside the test mold box 201 from leaking out through the sealing block 205. The output end of the drive motor 302 rotates the threaded rod 303, so that the support slider 210 moves along the surface of the threaded rod 303 and the guide groove. 211 slides downwards, while the supporting slider 210 drives the hydraulic rod 212 and the rotating rod 307 to move along the inner wall of the limiting seat 304 towards the test mold box 201. This causes the rotating rod 307 to push the stirring rod 309 downwards, allowing the stirring rod 309 to enter the concrete inside the test mold box 201. By rotating the rotating handle 308, the rotating rod 307 rotates, and the stirring rod 309 rotates, causing the stirring rod 309 to stir and defoam the concrete inside the test mold box 201, preventing voids in the concrete test block from affecting the test results. When it is necessary to remove the concrete inside the test mold box 201... During molding, the hydraulic rod 212 pushes the piston rod 213 towards the mold box 201, and then pushes the piston rod 213 downwards to the pressure panel 214. This pressure panel 214 then compresses the concrete inside the mold box 201 towards the limiting box 202, causing the concrete inside the mold box 201 to press downwards against the sealing block 205. The sealing block 205 then presses downwards against the limiting spring 203. Simultaneously, the sealing block 205 drives the guide limiting block 206 to slide along the limiting groove 204, thus allowing the concrete inside the mold box 201 to slide, thereby ensuring the integrity of the concrete inside the mold box 201. Then, under the upward thrust of the limiting slide 204, the concrete inside the test mold box 201 is made flush with it, and then the test mold box 201 is taken out, thereby driving the concrete inside the test mold box 201 to be taken out, ensuring the integrity and convenience of the concrete test film. The support seat 209 can slide left and right along the guide slide 306 opened by the support top rod 208. Then the support seat 209 drives the support slider 210. The support slider 210 drives the limiting seat 304 to slide along the limiting slide 305 through the piston rod 213, the threaded rod 303 and the rotating rod 307, thereby increasing the flexibility and applicability of the equipment.

[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A concrete compressive strength test mold, characterized in that, It includes a test film shell (1), a demolding component (2) is provided inside the test film shell (1), and an adjustment component (3) is provided inside the test film shell (1). The demolding assembly (2) includes a test mold box (201), which is slidably connected to the inner wall of the test film shell (1). A limit box (202) is slidably connected to the inner wall of the test film shell (1). A limit spring (203) is fixedly connected to the bottom of the inner wall of the limit box (202). A limit groove (204) is formed on the surface of the limit box (202). A sealing block (205) is fixedly connected to the end of the limit spring (203) away from the limit box (202). The top of the sealing block (205) contacts the bottom of the test mold box (201). A guide limit block (206) is fixedly connected to the bottom of the sealing block (205). The outer wall of the guide limit block (206) is slidably connected to the inner wall of the limit groove (204). A limiting rod (207) is fixedly connected to the inner wall of the test film shell (1). The top of the test mold box (201) is slidably connected to the bottom of the limiting rod (207). A support rod (208) is fixedly connected to the top of the test film shell (1). A support seat (209) is provided inside the support rod (208). A guide groove (211) is opened on the inner wall of the support seat (209). A support slider (210) is slidably connected to the inner wall of the guide groove (211). A hydraulic rod (212) is fixedly connected to the inner wall of the support slider (210). A piston rod (213) is slidably connected to the inner wall of the hydraulic rod (212). A pressure panel (214) is fixedly connected to the end of the piston rod (213) away from the hydraulic rod (212).

2. The concrete compressive strength test mold as described in claim 1, characterized in that: Several limiting springs (203) are provided, two guide limiting blocks (206) are provided, the two guide limiting blocks (206) are symmetrically arranged around the center of the limiting box (202), and two limiting rods (207) are provided, the two limiting rods (207) are symmetrically arranged around the center of the trial mold box (201).

3. The concrete compressive strength test mold as described in claim 1, characterized in that: Two limiting grooves (204) are provided, and two support seats (209) are provided. The two support seats (209) are symmetrically arranged with the support slider (210) as the center.

4. A concrete compressive strength test mold as described in claim 1, characterized in that: The adjustment component (3) includes a motor support base (301), which is fixedly connected to the top of the support base (209). A drive motor (302) is fixedly connected to the inner wall of the motor support base (301). A threaded rod (303) is fixedly connected to the output end of the drive motor (302). The outer wall of the threaded rod (303) is threadedly connected to the inner wall of the support slider (210). The end of the threaded rod (303) away from the drive motor (302) is rotatably connected to a limit seat (304).

5. A concrete compressive strength test mold as described in claim 4, characterized in that: The inner wall of the support rod (208) is provided with a limiting groove 2 (305), the outer wall of the limiting seat (304) is slidably connected to the inner wall of the limiting groove 2 (305), the inner wall of the support rod (208) is provided with a guide groove 2 (306), and the outer wall of the support seat (209) is slidably connected to the inner wall of the guide groove 2 (306).

6. A concrete compressive strength test mold as described in claim 5, characterized in that: A rotating rod (307) is rotatably connected to the inner wall of the support slider (210). The rotating rod (307) passes through the inner wall of the support slider (210) and extends therein. A rotating handle (308) is fixedly connected to the top of the rotating rod (307).

7. A concrete compressive strength test mold as described in claim 6, characterized in that: The bottom of the rotating rod (307) is rotatably connected to the inner wall of the limiting seat (304). The rotating rod (307) passes through the inner wall of the limiting seat (304) and extends therethrough. The end of the rotating rod (307) away from the rotating handle (308) is fixedly connected to a stirring rod (309).