Building mortar detection device
By releasing the clamping action through spring deformation, the problem of friction during the test rod's descent is solved, enabling high-precision testing of the building mortar testing device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG MINGCHENG ENVIRONMENTAL PROTECTION NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-01
AI Technical Summary
In existing building mortar testing devices, the test rod repeatedly rubs against the clamping block during the descent, affecting the testing accuracy.
The clamping action on the test rod is released instantaneously by spring deformation. Through the cooperation of the clamping rod, the second spring, the fixing block, and the soft clamping block, the test rod can be released quickly, reducing friction and improving the detection accuracy.
It greatly reduces friction between the clamp and the test rod, improves testing accuracy, is easy to operate, and produces more accurate test results.
Smart Images
Figure CN224189817U_ABST
Abstract
Description
A building mortar testing device Technical Field
[0001] This utility model relates to the field of mortar testing technology, specifically a building mortar testing device. Background Technology
[0002] Before use, building mortar must undergo multiple tests. Among them, the mortar consistency testing device is a key device for measuring the fluidity of mortar. Its core principle is to quantify the consistency value by measuring the free sinking depth of a standard test cone in the mortar. The sinking of the test cone requires the operator to manually loosen the clamping block. However, during this process, because the clamping block cannot quickly contact and detach from the test rod, the test rod may rub against the clamping block multiple times during free fall, thus affecting the accuracy of the mortar consistency test. Therefore, it is particularly important to provide a building mortar testing device that can solve the above problems. Summary of the Invention
[0003] The purpose of this invention is to provide a building mortar testing device that can instantly release the clamping effect on the test rod through spring deformation, thereby improving the accuracy of mortar consistency testing.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a building mortar testing device, comprising a workbench, a vertical rod fixedly connected to one side of the top of the workbench, a measuring disc fixedly connected to the top of the vertical rod, a support fixedly connected to the middle of the vertical rod at one end, a through hole opened at the other end of the support and slidably sleeved on the outer wall of a test rod, a test cone fixedly connected to the bottom of the test rod, a mortar container placed at the bottom of the test cone, a clamping mechanism fixedly connected to the top of the other end of the support, the clamping mechanism being sleeved on the test rod, a plurality of equidistantly distributed pressure blocks fixedly connected to the top of the clamping mechanism on the outer side, a pressure ring fixedly connected to the top of the pressure blocks, L-shaped pressure rods fixedly connected to both sides of the top of the pressure rings, and the other end of the L-shaped pressure rods fixedly connected to the top of the support;
[0005] A clamping mechanism includes a clamping rod, which is slidably engaged with the inner cylinder and the outer ring through a T-shaped structure at its bottom, and is rotatably connected to the upper part of a gear through a strip-shaped tooth structure on one side. The lower part of the gear is rotatably connected to an annular tooth structure on the inner side of a rotating ring. The top of the gear is rotatably connected to the bottom of a convex block through a rotating shaft. The two sides of the convex block are respectively fixed to the top of the inner cylinder and the outer ring. The bottom of the gear is rotatably connected to the top of an ear block through a rotating shaft. The ear block is fixed to the inner wall of the bottom ring. The bottom of the bottom ring is fixed to the top of the support.
[0006] Preferably, a flexible clamping block is fixedly connected to the clamping end of the clamping rod, a top block is fixedly connected to the top clamping end side of the clamping rod, one side of the top block is fixedly connected to one end of the second spring, the other end of the second spring is fixedly connected to one side of the fixing strip, the two sides of the fixing strip cross over the upper part of the tail end of the clamping rod and are fixedly connected to the top of the outer ring, and a limiting soft block is fixedly connected to the top of the clamping rod and located on the side of the second spring. Four clamping rods are symmetrically arranged around the center of the outer ring.
[0007] Preferably, the upper part of the gear and the portion connecting to the strip tooth structure are provided with only half of the tooth structure.
[0008] Preferably, the inner diameter of the inner cylinder is larger than the outer diameter of the test rod, and an outer ring is fitted on the outer side of the inner cylinder. The outer ring, the rotating ring, and the bottom ring are all circular ring structures with the same inner and outer diameters. The rotating ring is located between the outer ring and the bottom ring and can rotate relative to each other.
[0009] Preferably, a lever is fixedly connected to the outer side of the rotating ring, and a first alignment block is fixedly connected to the outer side of the rotating ring adjacent to the lever. Multiple equidistant second alignment blocks are fixedly connected to the outer wall of the outer ring. Each time the first alignment block rotates past two adjacent second alignment blocks, the gear rotates one revolution. When the first alignment block and the second alignment block are aligned, the strip tooth structure and the upper tooth structure of the gear are in a state of about to disengage from the transmission connection.
[0010] Preferably, two sets of fixing blocks are symmetrically fixed to the outer side wall of the bottom of the inner cylinder, and a pawl is slidably engaged between the two sets of fixing blocks. The tail of the pawl is fixed to one end of the first spring, and the other end of the first spring is fixed to the outer wall of the inner cylinder. The head of the pawl is engaged with a ratchet structure provided on the lower part of the inner wall of the rotating ring.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] This invention, through the combination of a clamping rod, a second spring, a fixing block, a fixing strip, a flexible clamping block, and gears, not only allows the test rod to be vertically clamped in the center, but also enables the clamping rod to quickly rebound due to the elastic deformation of the second spring when the clamping rod releases its grip on the test rod. This greatly reduces the friction between the clamping rod and the test rod, thereby significantly improving the detection accuracy. At the same time, in conjunction with the pawl, fixing block, first spring, and ratchet structure, the rotating ring can only rotate in one direction. It only needs to rotate in one direction and align with the first and second alignment blocks, making the operation relatively simple. Attached Figure Description
[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0014] Figure 1 is a three-dimensional structural view of this utility model;
[0015] Figure 2 is an enlarged three-dimensional view of the structure at point A of this utility model;
[0016] Figure 3 is a three-dimensional view of the clamping mechanism of this utility model;
[0017] Figure 4 is an enlarged three-dimensional view of section B of this utility model;
[0018] Figure 5 is a three-dimensional disassembled view of the clamping mechanism of this utility model;
[0019] Figure 6 is an enlarged three-dimensional view of the structure at point C of this utility model.
[0020] In the diagram: 1. Workbench, 2. Slurry container, 3. Upright pole, 4. Support, 5. Test rod, 6. Test cone, 7. L-shaped pressure rod, 8. Pressure ring, 81. Pressure block, 9. Clamping mechanism, 91. Inner cylinder, 92. First slide groove, 93. Fixing block, 94. Pawl, 95. First spring, 96. Clamping rod, 97. Soft clamping block, 98. Strip toothed structure, 99. Top block, 910. Second spring, 911. Fixing strip, 912. T-shaped structure, 913. Convex block, 914. Gear, 915. Rotary ring, 916. Ring toothed structure, 917. Racket structure, 918. Lever, 919. First alignment block, 920. Second alignment block, 921. Outer ring, 922. Second slide groove, 923. Ear block, 924. Bottom ring, 925. Limiting soft block, 10. Measuring disc. Detailed Implementation
[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0022] Please refer to Figures 1-6. A building mortar testing device includes a workbench 1. A vertical rod 3 is fixedly connected to one side of the top of the workbench 1. A measuring disc 10 is fixedly connected to the top of the vertical rod 3. The middle part of the vertical rod 3 is fixedly connected to one end of a bracket 4. The other end of the bracket 4 has a through hole and is slidably sleeved on the outer wall of a test rod 5. A test cone 6 is fixedly connected to the bottom of the test rod 5. A mortar container 2 is placed at the bottom of the test cone 6. A clamping mechanism 9 is fixedly connected to the top of the other end of the bracket 4. The clamping mechanism 9 is sleeved on the outside of the test rod 5. A plurality of equidistantly distributed pressure blocks 81 are fixedly connected to the top of the clamping mechanism 9. A pressure ring 8 is fixedly connected to the top of the pressure block 81. L-shaped pressure rods 7 are fixedly connected to both sides of the top of the pressure ring 8. The other end of the L-shaped pressure rod 7 is fixedly connected to the top of the bracket 4.
[0023] The clamping mechanism 9 includes a clamping rod 96, which is slidably engaged with the inner cylinder 91 and the outer ring 921 through a T-shaped structure 912 at its bottom, and is located in the first and second sliding grooves 922. The clamping rod 96 is rotatably connected to the upper part of a gear 914 through a strip-shaped toothed structure 98 on one side. The lower part of the gear 914 is rotatably connected to an annular toothed structure 916 on the inner side of a rotating ring 915. The top of the gear 914 is rotatably connected to the bottom of a convex block 913 through a rotating shaft. The two sides of the convex block 913 are respectively fixed to the top of the inner cylinder 91 and the outer ring 921. The bottom of the gear 914 is rotatably connected to the top of an ear block 923 through a rotating shaft. The ear block 923 is fixed to the inner wall of a bottom ring 924. The bottom of the bottom ring 924 is fixed to the top of a bracket 4.
[0024] The clamping rod 96 has a flexible clamping block 97 fixedly connected to its clamping end, and a top block 99 fixedly connected to the top clamping end side of the clamping rod 96. One side of the top block 99 is fixedly connected to one end of the second spring 910, and the other end of the second spring 910 is fixedly connected to one side of the fixing bar 911. The fixing bar 911 extends across the upper part of the tail end of the clamping rod 96 and is fixedly connected to the top of the outer ring 921 on both sides. A limiting soft block 925 is fixedly connected to the top of the clamping rod 96 and located on one side of the second spring 910. Four clamping rods 96 are arranged symmetrically around the center of the outer ring 921. When releasing the test rod 5, due to the structural characteristics of this device, the clamping rod 96 needs to continue to move a distance towards the test rod 5 to complete the release operation. The flexible clamping block 97 plays a certain buffering role. Through the reverse force of the second spring 910 on the clamping rod 96, the test rod 5 can be released quickly. By setting four clamping rods 96, the test rod 5 can be clamped in the center to prevent the test rod 5 from tilting and falling, which would affect the detection accuracy.
[0025] The upper part of the gear 914 is connected to the strip tooth structure 98 with only half of the tooth structure, which can temporarily cut off the connection and transmission between the gear 914 and the strip tooth structure 98.
[0026] The inner cylinder 91 has an inner diameter larger than the outer diameter of the test rod 5. An outer ring 921 is fitted on the outer side of the inner cylinder 91. The outer ring 921, the rotating ring 915, and the bottom ring 924 are all circular structures with the same inner and outer diameters. The rotating ring 915 is located between the outer ring 921 and the bottom ring 924 and can rotate relative to each other.
[0027] The rotating ring 915 has a lever 918 fixedly connected to its outer side. A first alignment block 919 is fixedly connected to the outer side of the rotating ring 915 adjacent to the lever 918. A plurality of equidistantly arranged second alignment blocks 920 are fixedly connected to the outer wall of the outer ring 921. Each time the first alignment block 919 rotates past two adjacent second alignment blocks 920, the gear 914 rotates one revolution. When the first alignment block 919 and the second alignment block 920 are aligned, the strip tooth structure 98 and the upper tooth structure of the gear 914 are about to disengage from the transmission connection. The clamping and releasing of the test rod 5 is achieved by rotating the lever 918 and observing the positional relationship between the first alignment block 919 and the second alignment block 920. When the first alignment block 919 and the second alignment block 920 are aligned, the test rod 5 is clamped. When the lever 918 is rotated again and the first alignment block 919 and the second alignment block 920 are misaligned, the test rod 5 is released.
[0028] Two sets of fixing blocks 93 are symmetrically fixed to the outer wall of the bottom of the inner cylinder 91. A pawl 94 is slidably engaged between the two sets of fixing blocks 93. The tail of the pawl 94 is fixed to one end of the first spring 95, and the other end of the first spring 95 is fixed to the outer wall of the inner cylinder 91. The head of the pawl 94 is engaged with a ratchet structure 917 provided on the lower part of the inner wall of the rotating ring 915. By setting the pawl 94 and the ratchet structure 917, the rotating ring 915 can only rotate in one direction.
[0029] Working principle: First, rotate lever 918 to misalign the first alignment block 919 with the second alignment block 920. Then, adjust the height of test rod 5 to a suitable position. Move lever 918 again to align the first alignment block 919 with one of the second alignment blocks 920. At the same time, rotating ring 915 drives the lower part of gear 914 to rotate through the annular tooth structure 916 on the inner wall. Then, the upper part of gear 914 drives clamping rod 96 to move along the first slide groove 92 and the second slide groove 922 towards the center of outer ring 921 to clamp test rod 5. When it is necessary to release test cone 6 to fall freely, the lever 915 is rotated again. The lever 918 is moved, causing the first alignment block 919 to be misaligned with one of the second alignment blocks 920. At the same time, since the front end of the clamping rod 96 is provided with a soft clamping block 97, which can act as a certain compression buffer, and since the upper part of the gear 914 only has half of the tooth structure, the constraint limit of the clamping rod 96 towards the center of the outer ring 921 is eliminated. Under the action of the second spring 910, the clamping rod 96 is driven to move outward rapidly, and the limiting soft block 925 buffers and limits the clamping rod 96, thereby releasing the clamping effect on the test rod 5, and then the test cone 6 falls into the slurry container 2 below to complete the testing operation.
[0030] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0031] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.
Claims
1. A building mortar testing device, characterized in that: Includes a workbench (1), on one side of the top of the workbench (1) a vertical rod (3) is fixedly connected, a measuring disc (10) is fixedly connected to the top of the vertical rod (3), the middle of the vertical rod (3) is fixedly connected to one end of a bracket (4), the other end of the bracket (4) has a through hole and is slidably fitted to the outer wall of a test rod (5), a test cone (6) is fixedly connected to the bottom end of the test rod (5), a slurry container (2) is placed at the bottom of the test cone (6), and the other end of the bracket (4) A clamping mechanism (9) is fixedly connected to the top, and the clamping mechanism (9) is sleeved on the outside of the test rod (5). A plurality of equally spaced pressure blocks (81) are fixedly connected to the top of the clamping mechanism (9). A pressure ring (8) is fixedly connected to the top of the pressure block (81). L-shaped pressure rods (7) are fixedly connected to both sides of the top of the pressure ring (8). The other end of the L-shaped pressure rod (7) is fixedly connected to the top of the bracket (4). The clamping mechanism (9) includes a clamping rod (9). 6) The clamping rod (96) is slidably engaged with the inner cylinder (91) and the outer ring (921) through the T-shaped structure (912) at the bottom, and is connected to the first groove (92) and the second groove (922) of the inner cylinder (91). The clamping rod (96) is rotatably connected to the upper part of the gear (914) through the strip tooth structure (98) provided on one side. The lower part of the gear (914) is rotatably connected to the annular tooth structure (916) provided on the inner side of the rotating ring (915). The top of the gear (914) is rotatably connected to the bottom of the convex block (913) through the rotating shaft. The two sides of the convex block (913) are respectively fixed to the top of the inner cylinder (91) and the outer ring (921). The bottom of the gear (914) is rotatably connected to the top of the ear block (923) through the rotating shaft. The ear block (923) is fixed to the inner wall of the bottom ring (924). The bottom of the bottom ring (924) is fixed to the top of the bracket (4).
2. The building mortar testing device as described in claim 1, characterized in that: A flexible clamping block (97) is fixedly connected to the clamping end of the clamping rod (96). A top block (99) is fixedly connected to the top clamping end side of the clamping rod (96). One side of the top block (99) is fixedly connected to one end of the second spring (910). The other end of the second spring (910) is fixedly connected to one side of the fixing strip (911). The two sides of the fixing strip (911) cross over the upper part of the tail end of the clamping rod (96) and are fixedly connected to the top of the outer ring (921). A limiting soft block (925) is fixedly connected to the top of the clamping rod (96) and located on one side of the second spring (910). Four clamping rods (96) are arranged symmetrically around the center of the outer ring (921).
3. The building mortar testing device as described in claim 1, characterized in that: The upper part of the gear (914) is connected to the strip tooth structure (98) with only half of the tooth structure.
4. The building mortar testing device as described in claim 1, characterized in that: The inner diameter of the inner cylinder (91) is larger than the outer diameter of the test rod (5). An outer ring (921) is fitted on the outer side of the inner cylinder (91). The outer ring (921), the rotating ring (915) and the bottom ring (924) are all circular structures with the same inner and outer diameters. The rotating ring (915) is located between the outer ring (921) and the bottom ring (924) and can rotate relative to each other.
5. The building mortar testing device as described in claim 1, characterized in that: A lever (918) is fixedly connected to the outside of the rotating ring (915). A first alignment block (919) is fixedly connected to the outside of the rotating ring (915) adjacent to the lever (918). A plurality of equidistant second alignment blocks (920) are fixedly connected to the outer wall of the outer ring (921). Each time the first alignment block (919) rotates past two adjacent second alignment blocks (920), the gear (914) rotates one revolution. When the first alignment block (919) and the second alignment block (920) are aligned, the strip tooth structure (98) and the upper tooth structure of the gear (914) are in a state of about to disengage from the transmission connection.
6. The building mortar testing device as described in claim 1, characterized in that: Two sets of fixing blocks (93) are symmetrically fixed to the outer wall of the bottom of the inner cylinder (91). A pawl (94) is slidably engaged between the two sets of fixing blocks (93). The tail of the pawl (94) is fixed to one end of the first spring (95), and the other end of the first spring (95) is fixed to the outer wall of the inner cylinder (91). The head of the pawl (94) is engaged with a ratchet structure (917) provided on the lower part of the inner wall of the rotating ring (915).