Grouting material compactness detection device

Abstract

The utility model provides a grouting material compactness detection device which comprises a hammer head, a handle is detachably and fixedly arranged at the bottom of the hammer head, a balancing weight is detachably and fixedly arranged on the hammer head, shock excitation rods are fixedly arranged at the two ends of the hammer head, and the shock excitation rods are fixedly arranged on the hammer head. Two shock excitation heads with different hardness are detachably and fixedly arranged at the ends, deviating from the hammer head, of the two shock excitation rods respectively; according to the utility model, the two shock excitation heads with different hardness are detachably and fixedly arranged on the two shock excitation rods at the two ends of the hammer head respectively, so that two different shock excitation frequencies can be obtained during use through the shock excitation heads with different hardness, and different detection requirements are met; through the detachable design of the vibration excitation head, more vibration excitation heads with different hardness can be replaced, more different vibration excitation frequencies can be obtained during use, and different detection requirements are further met.

Description

Technical Field

[0001] The utility model belongs to the technical field of density detection, and particularly relates to a grouting material density detection device. Background Art

[0002] In the technical field of grouting density detection based on impact elastic waves, the prior art all uses an excitation hammer (for excitation). And in common grouting density detection techniques, the structural thickness that can be detected by using a spherical excitation hammer generally does not exceed 60 cm. There are generally two methods for generating impact elastic waves, namely, being generated by external force hitting and being generated by internal damage of an object. Hitting with an excitation hammer or dropping a steel ball is the most common excitation method. In the test of vibration and wave, generating elastic wave signals by exciting with round hammers of different diameters for detecting the grouting density of structural ducts is currently the most mainstream excitation method.

[0003] In the prior art, the Chinese utility model patent document with the authorization publication number of CN202123210468.8 discloses a special device for positioning detection of grouting density suitable for thick-wall structures, which has an excitation head, and the excitation head has a first end and a second end with the same material but different diameters; since the excitation frequency depends on the hardness of the excitation head, and the hardness of the two ends in the above prior art is the same, different excitation frequencies cannot be obtained during use.

[0004] Therefore, it is necessary to design a grouting material density detection device that can obtain different excitation frequencies and meet different detection requirements to solve the current technical problems. Summary of the Invention

[0005] Aiming at the deficiencies in the prior art, the utility model provides a grouting material density detection device that can obtain different excitation frequencies and meet different detection requirements.

[0006] The technical solution of the utility model is: a grouting material density detection device, including a hammer head, a handle is detachably and fixedly arranged at the bottom of the hammer head, a counterweight block is detachably and fixedly arranged on the hammer head, excitation rods are fixedly arranged at both ends of the hammer head, and two excitation heads with different hardnesses are respectively detachably and fixedly arranged at the ends of the two excitation rods departing from the hammer head.

[0007] The upper end of the handle is detachably and threadedly connected to the bottom of the hammer head, and a locking mechanism for locking or releasing between the handle and the hammer head is arranged at the upper end of the handle.

[0008] The locking mechanism has a support rod fixedly arranged at the upper end of the handle. The upper end of the support rod is provided with a connecting screw rod that is detachably threadedly connected to the bottom of the hammer head. The outer side of the support rod is evenly provided with convex strips. A regular octagonal prism is slidably sleeved outside the support rod and the convex strips. A spring is arranged between the bottom end of the regular octagonal prism and the top end of the handle. A groove matching the regular octagonal prism is opened at the bottom of the hammer head.

[0009] The hammer head has a connecting seat. The top end of the handle is detachably and fixedly connected to the bottom of the connecting seat. Baffles are fixedly arranged at both ends of the connecting seat. Vibration rods are fixedly arranged on one side of the baffles away from the connecting seat. The counterweight block has a clamping groove matching the top of the connecting seat. A fixing hole is opened at the top of the counterweight block. An installation hole corresponding to the fixing hole is arranged at the top of the connecting seat. Internal threads are arranged inside the installation hole. A bolt for assembling and fixing the counterweight block and the connecting seat is arranged inside the fixing hole.

[0010] One end of the vibration head has a connecting column. A connecting hole matching the connecting column is opened on the vibration rod. Internal threads are arranged inside the connecting hole. External threads matching the connecting hole are arranged on the outside of the connecting column.

[0011] Copper vibration heads and nylon vibration heads are respectively fixedly arranged at one ends of the two vibration rods away from the hammer head.

[0012] An anti-slip sleeve is sleeved outside one end of the handle away from the hammer head.

[0013] The beneficial effects of the present utility model are as follows:

[0014] (1) In the present utility model, two vibration heads with different hardnesses are respectively detachably and fixedly arranged on the two vibration rods at both ends of the hammer head. Two different vibration frequencies can be obtained by using the vibration heads with different hardnesses, meeting different detection requirements.

[0015] (2) Through the detachable design of the vibration head, more vibration heads with different hardnesses can be replaced, and more different vibration frequencies can be obtained during use, further meeting different detection requirements.

[0016] (3) The mass of the hammer head 2 can be configured by adjusting the number of counterweight blocks. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the grout density detection device in the present utility model.

[0018] Figure 2 It is a partial structural schematic diagram of the grout density detection device in the present utility model.

[0019] Figure 3 is Figure 1 The partial enlarged view at position A in

[0020] Figure 4 is the structural schematic diagram of the vibration exciter head in the present utility model.

[0021] Figure 5 is the structural schematic diagram of the counterweight in the present utility model. Detailed implementation manners

[0022] Now, various exemplary embodiments of the present utility model will be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and does not constitute any limitation to the present utility model and its application or use. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present utility model thorough and complete, and to fully convey the scope of the present utility model to those skilled in the art. It should be noted that: Unless otherwise specifically stated, the relative arrangements of components and steps, the compositions of materials, numerical expressions, and numerical values set forth in these embodiments should be construed as merely exemplary and not as limitations.

[0023] The "first", "second", and similar terms used in the present utility model do not denote any order, quantity, or importance, but are merely used to distinguish different parts. Terms such as "including" or "comprising" mean that the elements before this term cover the elements listed after this term, and do not exclude the possibility of also covering other elements. Terms such as "upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0024] As Figures 1 to 5 shown, the grout density detection device includes a hammer head 2, a handle 1 is detachably and fixedly arranged at the bottom of the hammer head 2, a counterweight 4 is detachably and fixedly arranged on the hammer head 2, vibration exciter rods 3 are fixedly arranged at both ends of the hammer head 1, and two vibration exciter heads 5 with different hardnesses are respectively detachably and fixedly arranged at the ends of the two vibration exciter rods 3 away from the hammer head 1; in this embodiment, two vibration exciter heads 5 with different hardnesses are respectively detachably and fixedly arranged on the two vibration exciter rods 3 at both ends of the hammer head 2, and two different vibration excitation frequencies can be obtained by using the vibration exciter heads 5 with different hardnesses to meet different detection requirements; through the detachable design of the vibration exciter head 5, more vibration exciter heads 5 with different hardnesses can be replaced, and more different vibration excitation frequencies can be obtained during use to further meet different detection requirements; the mass of the hammer head 2 can be configured by adjusting the number of the counterweights 4.

[0025] In some embodiments, the upper end of the handle 1 is detachably connected to the bottom of the hammer head 2 by a thread. A locking mechanism 6 is provided at the upper end of the handle 1 for locking or releasing between the handle 1 and the hammer head 2. After the handle 1 and the hammer head 2 are assembled by threading, the locking mechanism 6 can limit the relative rotation between the handle 1 and the hammer head 2, thereby achieving the locking between the handle 1 and the hammer head 2.

[0026] In some embodiments, as Figure 2 shown, the locking mechanism 6 has a support rod 61 fixedly arranged at the upper end of the handle 1. A connecting screw rod detachably connected to the bottom of the hammer head 2 is arranged at the upper end of the support rod 61. The connecting screw rod is detachably connected to the bottom of the hammer head 2 by a thread. Convex strips 62 are uniformly arranged on the outer side of the support rod 61. A regular octagonal prism 64 is slidably sleeved on the outer sides of the support rod 61 and the convex strips 62. A spring 63 is arranged between the bottom end of the regular octagonal prism 64 and the top end of the handle 1. A groove matching the regular octagonal prism 64 is formed at the bottom of the hammer head 2. After the connecting screw rod is detachably connected to the bottom of the hammer head 2 by a thread, the top end of the regular octagonal prism 64 is embedded into the groove of the hammer head 2, which can limit the relative rotation between the handle 1 and the hammer head 2. When it is necessary to disassemble between the handle 1 and the hammer head 2, pull down the regular octagonal prism 64 to separate its top end from the groove of the hammer head 2, and then rotate the connecting screw rod to disassemble between the handle 1 and the hammer head 2.

[0027] In some embodiments, the hammer head 2 has a connecting seat 21. The top end of the handle 1 is detachably and fixedly connected to the bottom of the connecting seat 21. Baffles 22 are fixedly arranged at both ends of the connecting seat 21. A vibration exciting rod 3 is fixedly arranged on the side of the baffle 22 away from the connecting seat 21. The counterweight 4 has a clamping groove 41 matching the top of the connecting seat 21. A fixing hole 42 is formed at the top of the counterweight 4. An installation hole 23 corresponding to the fixing hole 42 is arranged at the top of the connecting seat 21. Internal threads are arranged inside the installation hole 23. A bolt for assembling and fixing the counterweight 4 and the connecting seat 21 is arranged inside the fixing hole 42. The bolt is threadedly connected to the internal threads inside the installation hole 23.

[0028] In some embodiments, one end of the vibration exciting head 5 has a connecting column 51. A connecting hole 31 matching the connecting column 51 is formed in the vibration exciting rod 3. Internal threads are arranged inside the connecting hole 31. External threads matching the inside of the connecting hole 31 are arranged on the outer side of the connecting column 51. The vibration exciting head 5 is fixedly connected by threaded assembly between the connecting column 51 and the connecting hole 31.

[0029] In some embodiments, copper vibration exciting heads and nylon vibration exciting heads are respectively fixedly arranged at the ends of the two vibration exciting rods 3 away from the hammer head 2; specifically, the copper vibration exciting head is made of H65-T brass, and the nylon vibration exciting head is made of nylon material.

[0030] In some embodiments, an anti-slip sleeve 11 is sleeved on the outer side of the end of the handle 1 facing away from the hammer head 2 .

[0031] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0032] The above-mentioned embodiments only express some implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A grouting material density detection device, characterized in that: It includes a hammer head, a handle is detachably fixedly provided at the bottom of the hammer head, a counterweight is detachably fixedly provided on the hammer head, vibration rods are fixedly provided at both ends of the hammer head, and two vibration heads with different hardness are detachably fixedly provided at the ends of the two vibration rods away from the hammer head.

2. The grouting material density detection device according to claim 1, characterized in that: The upper end of the handle is detachably threadedly connected to the bottom of the hammer head, and the upper end of the handle is provided with a locking mechanism for locking or releasing the handle and the hammer head.

3. The grouting material density detection device according to claim 2, characterized in that: The locking mechanism comprises a support rod fixedly arranged at the upper end of the handle, the upper end of the support rod is provided with a connecting screw which is detachably threadedly connected to the bottom of the hammer head, the outer side of the support rod is evenly provided with convex strips, the outer side of the support rod and the convex strips are slidably sleeved with a regular octagonal prism, a spring is arranged between the bottom end of the regular octagonal prism and the top end of the handle, and the bottom of the hammer head is provided with a groove matching the regular octagonal prism.

4. The grouting material density detection device according to claim 1, characterized in that: The hammer head has a connecting seat, the top of the handle is detachably fixedly connected to the bottom of the connecting seat, baffles are fixedly arranged at both ends of the connecting seat, an exciting rod is fixedly arranged on the side of the baffle away from the connecting seat, the counterweight block has a slot matching the top of the connecting seat, a fixing hole is opened on the top of the counterweight block, a mounting hole corresponding to the fixing hole is arranged on the top of the connecting seat, an internal thread is arranged inside the mounting hole, and a bolt for assembling and fixing the counterweight block to the connecting seat is arranged inside the fixing hole.

5. The grouting material density detection device according to claim 1, characterized in that: One end of the excitation head is provided with a connecting column, the excitation rod is provided with a connecting hole matching the connecting column, the inside of the connecting hole is provided with an internal thread, and the outside of the connecting column is provided with an external thread matching the connecting hole.

6. The grouting material density detection device according to claim 1, characterized in that: A copper excitation head and a nylon excitation head are respectively fixedly arranged on the ends of the two excitation rods away from the hammer head.

7. The grouting material density detection device according to claim 1, characterized in that: An anti-slip sleeve is sleeved on the outer side of one end of the handle away from the hammer head.

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