A device for detecting the strength of masonry in situ

Abstract

The utility model relates to the technical field of masonry strength detection, concretely refers to a kind of masonry strength on-site detection device, including handle part, the handle part one side is fixed with support, slidingly connected with movable frame on the handle part, working spring is further connected between the movable frame and handle part, while rotating drum is rotated on the movable frame, pressure release sliding slot is opened on the rotating drum side wall, sliding block is arranged on the support, the sliding block slides along pressure release sliding slot, receiving cylinder is rotatably installed on the support and located in the front end of rotating drum, a plurality of receiving holes for inserting and placing measuring nail are opened on the receiving cylinder, connecting rod is fixed on the movable frame, the protruding plate is fixed on the front end of connecting rod after passing through the center of rotating drum, the protruding rod is fixed on the front end of protruding plate, multiple measuring nails can be filled simultaneously, the compression release of working spring and the conversion push-out of measuring nail are carried out synchronously by using motor to drive power shaft to rotate, a large amount of operation time is saved.

Description

Technical Field

[0001] This utility model relates to the field of masonry strength testing technology, specifically to a masonry strength on-site testing device. Background Technology

[0002] The compressive strength of masonry mortar is an important quality indicator of masonry strength, which is directly related to the stability and durability of masonry structures.

[0003] Mortar strength penetration testing is a practical method for quickly assessing the compressive strength of masonry mortar on-site. The testing device applies a load by compressing a working spring, driving a test pin into the mortar. By measuring the penetration depth of the test pin in the mortar, the compressive strength of the mortar can be calculated. Multiple tests need to be conducted near each test point to improve the accuracy of the test and avoid the presence of voids in the mortar.

[0004] Current on-site masonry strength testing devices can only load one set of test nails at a time, requiring frequent loading of test nails for multiple tests. Utility Model Content

[0005] The present invention aims to at least solve the problem in the prior art that multi-point continuous detection requires repeated removal and placement of test nails.

[0006] This solution provides a field testing device for masonry strength, achieved through the following specific technical means: It includes a handle, a bracket fixed to one side of the handle, a movable frame slidably connected to the handle, a working spring connected between the movable frame and the handle, a rotating cylinder rotating on the movable frame, a pressure release groove on the side wall of the rotating cylinder, a slider on the bracket, the slider sliding along the pressure release groove, the pressure release groove consisting of an inclined groove and a straight groove communicating with the front end of the inclined groove, a storage cylinder rotatably mounted at the front end of the bracket, the storage cylinder having multiple sets of storage holes for inserting test nails, a connecting rod fixed to the movable frame, the connecting rod passing through the center of the rotating cylinder and having a protruding plate fixed to its front end, a protruding rod fixed to the front end of the protruding plate, the rotating cylinder pushing forward causing the protruding rod to quickly move forward and insert into a set of storage holes, quickly pushing out the test nails in the storage holes and inserting them into the masonry mortar for testing.

[0007] Preferred technical solution 1: Multiple sets of pressure release grooves are distributed around the circumference of the rotating drum. The number of pressure release grooves is equal to the number of storage holes and their positions correspond one-to-one. At the same time, a reversing drive mechanism is also installed on the bracket. The reversing drive mechanism is used to synchronously drive the rotating drum and the storage drum to rotate synchronously.

[0008] Preferred technical solution 2: The reversing drive mechanism includes a first linkage gear and a second linkage gear rotatably mounted on the bracket. At the same time, a first ring gear is fixedly sleeved on the front end of the rotating drum, and a second ring gear is fixedly sleeved on the storage cylinder. The first linkage gear and the second linkage gear mesh with the first ring gear and the second ring gear, respectively. The first ring gear is a long gear.

[0009] Preferred technical solution 3: A connecting rod is fixed on the movable frame, and the connecting rod slides through the handle.

[0010] Preferred technical solution four: Two sets of motors are fixed inside the bracket, and the output shafts of the two sets of motors are respectively fixed to linkage gear one and linkage gear two.

[0011] The above structure gives this solution the following advantages:

[0012] Multiple sets of test pins can be loaded simultaneously. By rotating the first and second linkage gears, the compression and release of the working spring and the conversion and ejection of the test pins are completed synchronously. Compared with traditional testing devices where loading test pins and compressing the working spring are done separately, this method can save a lot of operation time and can perform multiple tests continuously. 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 This is a schematic diagram of the overall structure of this solution;

[0015] Figure 2 This is the rear view of the solution;

[0016] Figure 3 This is a structural diagram of the convex plate and convex rod in this scheme;

[0017] Figure 4 This is a schematic diagram of the rotating drum in this design.

[0018] Among them, 1. Handle, 2. Bracket, 3. Movable frame, 31. Connecting rod, 4. Working spring, 5. Rotary cylinder, 51. Pressure release groove, 511. Inclined groove, 512. Straight groove, 6. Slider, 61. Spring component, 7. Storage cylinder, 71. Storage hole, 8. Connecting rod, 9. Protruding plate, 10. Protruding rod, 11. Reversing drive mechanism, 111. Power shaft, 112. Linkage gear one, 113. Linkage gear two, 114. Ring gear one, 115. Ring gear two. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 The masonry strength field testing device includes a handle 1, a bracket 2 fixed to one side of the handle 1, a movable frame 3 slidably connected to the handle 1, and multiple sets of connecting rods 31 fixed to the movable frame 3. The connecting rods 31 slide through the handle 1, limiting the sliding direction and stability of the movable frame 3. A working spring 4 is also connected between the movable frame 3 and the handle 1, and the working spring 4 is slidably sleeved on a set of connecting rods 31. At the same time, a connecting rod 8 is fixed to the movable frame 3, and a rotating cylinder 5 is rotatably mounted on the connecting rod 8. A pressure release groove 51 is opened on the side wall of the rotating cylinder 5. A slider 6 is set on the bracket 2, and the slider 6 slides along the pressure release groove 51. The pressure release groove 51 consists of an inclined groove 511 and a straight groove 512 communicating with the front end of the inclined groove 511. During the process of the slider 6 moving from the rear end to the front end of the inclined groove 511, the rotating cylinder 5 moves backward and gradually compresses the working spring 4. During the process of the slider 6 sliding from the front end to the rear end of the straight groove 512, the working spring 4... The compressive force is rapidly released, causing the rotating drum 5 to move forward quickly. A protruding plate 9 is fixed to the front end of the connecting rod 8. The circle of the protruding plate 9 is on the same straight line as the center of the rotating drum 5. At the same time, a protruding rod 10 is fixed to the front end of the protruding plate 9. A storage tube 7 is rotatably mounted on the bracket 2 in front of the protruding plate 9. The center line of the storage tube 7 coincides with the center line of the protruding plate 9. Multiple sets of storage holes 71 for inserting test nails are evenly spaced on the front circumference of the storage tube 7. The space between the storage holes 71 and the storage tube 7 is... The distance between the protruding rod 10 and the center of the protruding plate 9 is equal. During the process of the rotating cylinder 5 driving the slider 6 to move to the front end of the straight groove 512, the rotating cylinder 5 moves backward to pull the protruding rod 10 out of the previous set of receiving holes 71. Then the receiving cylinder 7 is rotated so that the other set of receiving holes 71 are facing the protruding rod 10. As the working spring 4 is released, the rotating cylinder 5 pushes forward to drive the protruding rod 10 to move forward quickly and insert it into the set of receiving holes 71, quickly pushing out the measuring nail in the receiving hole 71 and inserting it into the masonry mortar.

[0021] Please see Figures 1-4 The masonry strength field testing device has multiple sets of pressure release chutes 51 distributed around the circumference of the rotating drum 5. The rear end of the inclined groove 511 in one set of pressure release chutes 51 is connected to the rear end of the straight groove 512 in the adjacent set of pressure release chutes 51. At the same time, a reversing drive mechanism 11 is also installed on the support 2. The reversing drive mechanism 11 is used to synchronously drive the rotating drum 5 and the storage drum 7 to rotate synchronously, so that before each release of the working spring 4, a set of storage holes 71 can be moved to the position facing the protruding rod 10.

[0022] The reversing drive mechanism 11 includes two sets of power shafts 111 rotatably mounted on the bracket 2. Two sets of motors, each connected to one of the two sets of power shafts 111, are installed inside the bracket 2. The two motors drive the power shafts 111 to rotate. A first linkage gear 112 and a second linkage gear 113 are fixedly fitted onto the two sets of power shafts 111, respectively. Simultaneously, a first ring gear 114 is fixedly fitted onto the front end of the rotating drum 5, and a second ring gear 115 is fixedly fitted onto the receiving drum 7. The first linkage gear 112 and the second linkage gear 113 mesh with the first ring gear 114 and the second ring gear 115, respectively. The first ring gear 114 is a long gear, so that when the power shafts 111 rotate, the first linkage gear 112 drives the first ring gear 114 to rotate, causing the rotating drum 5 to rotate. Because of the sliding connection with slider 6, it will move back and forth. At this time, the long gear of ring gear 114 can ensure that linkage gear 112 and ring gear 114 always remain in mesh. One set of motors drives linkage gear 112 to rotate to control the forward and backward movement of protruding rod 10, and another set of motors drives linkage gear 113 to rotate to control the rotation of storage cylinder 7. When a set of storage holes 71 are moved out after protruding rod 10, slider 6 slides to the front middle part of inclined groove 511. Storage cylinder 7 starts to rotate and moves another set of storage holes 71 to the position facing protruding rod 10. During the rotation of storage cylinder 7, rotating cylinder 5 continues to rotate, so that when storage hole 71 is facing protruding rod 10, slider 6 moves to the front end of inclined groove 511 and enters straight groove 512.

[0023] Please see Figures 1-4 The masonry strength field testing device has a front end depth of inclined groove 511 that is less than the front end depth of straight groove 512, and a rear end depth of inclined groove 511 that is greater than the rear end depth of straight groove 512. The above settings can limit the sliding direction of slider 6. Slider 6 is connected to bracket 2 by spring 61, so that slider 6 can slide in accordance with the depth of inclined groove 511 and straight groove 512.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A field testing device for masonry strength, comprising a handle (1), wherein a bracket (2) is fixed to one side of the handle (1), characterized in that: A movable frame (3) is slidably connected to the handle (1), and a working spring (4) is also connected between the movable frame (3) and the handle (1). At the same time, a rotating cylinder (5) is rotatable on the movable frame (3). A pressure release groove (51) is provided on the side wall of the rotating cylinder (5). A slider (6) is provided on the support (2). The slider (6) slides along the pressure release groove (51). The pressure release groove (51) is composed of an inclined groove (511) and a straight groove (512) communicating with the front end of the inclined groove (511). A storage tube (7) is rotatably mounted on the frame (2) at the front end of the rotating cylinder (5). The storage tube (7) has multiple sets of storage holes (71) for inserting test nails. A connecting rod (8) is fixed on the movable frame (3). The connecting rod (8) passes through the center of the rotating cylinder (5) and a protruding plate (9) is fixed at its front end. A protruding rod (10) is fixed at the front end of the protruding plate (9). The protruding plate (9) is located on the rear side of the storage tube (7). The protruding rod (10) is quickly inserted into a set of storage holes (71) by the rotation interval of the rotating cylinder (5).

2. The on-site masonry strength testing device according to claim 1, characterized in that: Multiple sets of pressure release chutes (51) are distributed around the circumference of the rotating drum (5). The rear end of the inclined groove (511) in one set of pressure release chutes (51) is connected to the rear end of the straight groove (512) in the adjacent set of pressure release chutes (51). At the same time, a reversing drive mechanism (11) is also installed on the bracket (2). The reversing drive mechanism (11) is used to synchronously drive the rotating drum (5) and the storage tube (7) to rotate synchronously.

3. The on-site masonry strength testing device according to claim 2, characterized in that: The reversing drive mechanism (11) includes two sets of power shafts (111) rotatably mounted on the bracket (2). The two sets of power shafts (111) are respectively fixedly fitted with a first linkage gear (112) and a second linkage gear (113). At the same time, the front end of the rotating drum (5) is fixedly fitted with a first ring gear (114), and the storage cylinder (7) is fixedly fitted with a second ring gear (115). The first linkage gear (112) and the second linkage gear (113) mesh with the first ring gear (114) and the second ring gear (115) respectively. The first ring gear (114) is a long gear.

4. The on-site masonry strength testing device according to claim 1, characterized in that: Multiple sets of connecting rods (31) are fixed on the movable frame (3), and the connecting rods (31) slide through the handle part (1).

5. The on-site masonry strength testing device according to claim 3, characterized in that: The bracket (2) is equipped with two sets of motors that are respectively connected to two sets of power shafts (111).

6. The on-site masonry strength testing device according to claim 1, characterized in that: The depth of the front end of the inclined groove (511) is less than the depth of the front end of the straight groove (512), while the depth of the rear end of the inclined groove (511) is greater than the depth of the rear end of the straight groove (512).

7. The on-site masonry strength testing device according to claim 6, characterized in that: The slider (6) is connected to the bracket (2) by a spring (61).

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