Portable hollowing hammer

Abstract

The utility model relates to a portable hollowing hammer which comprises a telescopic rod, one end of the telescopic rod is provided with a containing structure, the telescopic rod is formed by connecting a plurality of telescopic joints in a sliding mode, one end of each telescopic joint is provided with an installation cylinder, the bottom end of the interior of each installation cylinder is provided with a solid hammer head, and the upper end of each installation cylinder is provided with a pressure sensor. The utility model relates to the technical field of hollowing hammers. According to the portable hollowing hammer, when hollowing does not exist on the ground and the floor, the counter-acting force generated when the solid hammer head collides with the floor is larger than the counter-acting force generated when hollowing exists on the ground and the floor, and therefore the influence of the two conditions on the pressure sensor is large; when the hollowing hammer is used, the pressure sensor can obviously display whether hollowing exists on the ground or not, people in the non-building field can judge whether hollowing exists on the ground and the floor or not through the hollowing hammer, and the applicability of the device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hollow hammers, in particular to a portable hollow hammer. Background Art

[0002] Hollowing is caused by the presence of air in the original masonry and the powder ash layer. When testing, use a hollowing hammer or a hard object to tap the plaster layer and the leveling layer. If a thud is heard, it is a hollowing phenomenon. In terms of house quality, "hollowing" generally refers to the hollowing phenomenon caused by loose bonding between the floor, wall and structural layer of the house.

[0003] The working principle of the hollowing hammer is to use the head of the hollowing hammer to knock or slide the wall, and listen to the sound of the hollowing hammer head contacting the wall to determine whether there is a hollow problem on the wall.

[0004] Chinese patent publication number CN217359752U discloses a portable multifunctional hollow hammer, which relates to the technical field of hollow hammers. The portable multifunctional hollow hammer comprises a grip and a hollow hammer. One end of the grip is movably connected to one end of the hollow hammer. The grip comprises a rod and a hanging rope. One end of the rod is provided with a threaded groove, and a tape measure is provided inside the threaded groove.

[0005] In the above patent, a telescopic rod and a hammer are used to judge whether there are hollows on the ground by the sound produced by knocking. However, this judgment method is difficult for people outside the industry. Therefore, when checking the decoration of their own houses, it is difficult for owners to judge the size of the hollows and whether there are hollows by the sound. Therefore, its applicability is low and it is difficult for people outside the construction industry to use it. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a portable hollow drum hammer so as to solve the technical problems mentioned in the above background technology.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions:

[0008] A portable hollow hammer, comprising a telescopic rod, one end of which is provided with a storage structure, the telescopic rod being composed of a plurality of telescopic joints slidably connected, one end of the telescopic joint being provided with a mounting tube, the bottom end of the interior of the mounting tube being provided with a solid hammer head, the upper end of the mounting tube being provided with a pressure sensor, the interior of the mounting tube being provided with a detection spring, and the bottom end of the detection spring being provided with an elastic ball;

[0009] A positioning groove is provided inside the telescopic joint, a sliding block is provided inside the positioning groove, and the sliding block is fixedly connected to the outer wall of another telescopic joint inside the telescopic joint. A locking groove extends from one end of the positioning groove close to the protruding port of the telescopic joint, and a pressure structure is provided on the groove wall of the locking groove.

[0010] Furthermore, the pressure structure includes two support rods, which are respectively fixedly connected to two ends of the groove wall of the locking groove, and elastic sheets are provided on one side of the two support rods facing the positioning groove.

[0011] Furthermore, the length of the detection spring is equal to the length of the mounting tube.

[0012] Furthermore, the top end of the detection spring is connected to the bottom end housing of the pressure sensor, the bottom end of the detection spring is provided with a sliding plate, and the bottom end of the sliding plate is provided with a groove for installing the elastic ball.

[0013] Furthermore, the side wall of the sliding plate contacts the inner wall of the mounting tube, and an extension rod is provided inside the sliding plate, and the extension rod contacts the detection end of the pressure sensor.

[0014] Furthermore, the storage structure includes a fixing rod, which is connected to the telescopic joint. Connecting rubber bands are rotatably provided on both sides of the fixing rod, and a locking sleeve that cooperates with the mounting tube is provided at one end of the connecting rubber band away from the fixing rod.

[0015] In summary, the present invention has at least one of the following beneficial technical effects:

[0016] 1. When there is no hollowing in the ground or floor, the reaction force generated by the solid hammer head hitting the floor is greater than the reaction force generated by the solid hammer head hitting the floor when there is a hollowing in the ground or floor. Therefore, the two situations have a greater impact on the pressure sensor. When in use, the pressure sensor can more clearly indicate whether there is a hollowing in the ground. Therefore, people in non-construction fields can also use this hollowing hammer to determine whether there is a hollowing in the ground or floor, effectively improving the applicability of the device.

[0017] 2. The portable hollow hammer has a storage structure. After the hollow hammer is used, the mounting tube is rotated again to move the sliding block out of the locking groove, so that the telescopic sections are unlocked from each other, and then the telescopic rod is retracted. After the telescopic rod is retracted, the connecting rubber band and the locking sleeve are rotated to the same direction as the mounting tube, and the locking sleeve is placed on the outer surface of the mounting tube to fix the mounting tube, thereby achieving the storage of the hollow hammer and the effect of being easy to carry.

[0018] 3. This portable hollowing hammer, since the length of the detection spring is equal to the length of the mounting tube, can effectively press the elastic ball on the top of the solid hammer head, and then when the solid hammer head collides with the floor to generate impact force, the reaction force can be well transmitted to the elastic ball, thereby achieving the purpose of improving the sensitivity of the hollowing hammer in hollow detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 The utility model is a structural schematic diagram of a portable hollow drum hammer.

[0021] Figure 2 The utility model is a schematic structural diagram of the telescopic sections of a portable hollow drum hammer locked with each other.

[0022] Figure 3 The utility model is a schematic diagram of the internal structure of the installation tube of a portable hollow drum hammer.

[0023] Figure 4 This is a structural schematic diagram of the pressure structure of a portable hollow drum hammer of the present utility model.

[0024] Figure 5 The utility model is a structural schematic diagram of a storage structure of a portable hollow hammer.

[0025] In the figure, 1. telescopic rod; 11. telescopic joint; 12. positioning groove; 13. sliding block; 14. locking groove; 15. pressure structure; 151. support rod; 152. elastic sheet; 2. storage structure; 21. fixing rod; 22. connecting rubber band; 23. locking sleeve; 3. mounting tube; 4. solid hammer head; 5. pressure sensor; 6. detection spring; 61. sliding plate; 62. groove; 63. extension rod; 7. elastic ball. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below with reference to the accompanying drawings.

[0027] Example:

[0028] Reference Figure 1-Figure 5The utility model discloses a portable hollow hammer, comprising a telescopic rod 1, one end of which is provided with a storage structure 2, the telescopic rod 1 being composed of a plurality of telescopic joints 11 connected in a sliding manner, one end of the telescopic joint 11 being provided with a mounting tube 3, the bottom end of the interior of the mounting tube 3 being provided with a solid hammer head 4, the upper end of the mounting tube 3 being provided with a pressure sensor 5, the interior of the mounting tube 3 being provided with a detection spring 6, the bottom end of the detection spring 6 being provided with an elastic ball 7;

[0029] A positioning groove 12 is provided inside the telescopic joint 11, and a sliding block 13 is provided inside the positioning groove 12. The sliding block 13 is fixedly connected to the outer wall of another telescopic joint 11 inside the telescopic joint 11. A locking groove 14 extends from one end of the positioning groove 12 close to the protruding port of the telescopic joint 11, and a pressure structure 15 is provided on the groove wall of the locking groove 14.

[0030] In this embodiment, the length of the hollow hammer can be changed by setting each telescopic section 11 of the telescopic rod 1, so as to facilitate the storage of the hollow hammer and effectively improve the portability of the hollow hammer.

[0031] By setting the positioning groove 12 and the sliding block 13, the two telescopic joints 11 are connected to each other. Figure 1 and Figure 2 , so as to achieve the effect of arbitrarily adjusting the length of the telescopic rod 1, thereby achieving the effect of facilitating storage, and after the telescopic rod 1 is stretched, by rotating the mounting cylinder 3, the mounting cylinder 3 drives the telescopic section 11 to rotate, so as to achieve the effect of sliding the sliding block 13 into the interior of the locking groove 14. When the sliding block 13 rotates to the interior of the locking groove 14, the pressure structure 15 provides pressure to the sliding block 13, so that the sliding block 13 and the groove wall of the locking groove 14 are tightly fitted, so as to achieve the effect of locking the two adjacent telescopic sections 11 with each other. Since the telescopic sections 11 at each position have the above-mentioned locking mechanism for locking two adjacent telescopic sections 11, the telescopic sections 11 at each position can be locked with each other when the mounting cylinder 3 is rotated;

[0032] When using the hollowing hammer, the telescopic rod 1 is fully extended, and the mounting tube 3 is rotated to lock the telescopic joints 11 at various positions with each other to prevent the telescopic rod 1 from being contracted by force when hitting the floor. After the telescopic rod 1 is locked, the telescopic rod 1 is held away from one end of the mounting tube 3, and the solid hammer head 4 at the bottom of the mounting tube 3 is facing downward, and the floor is struck. The elastic force generated by the striking of the floor causes the elastic ball 7 to generate an upward thrust, thereby compressing the pressure sensor 5. The pressure sensor 5 detects the magnitude of the pressure to determine whether there is a hollow.

[0033] Specifically, when there are no hollows between the ground and the floor, the solid hammer head 4 collides with the floor. At this time, since the ground and the floor are in close contact, the force transmission is not affected. The reaction force received by the solid hammer head 4 rebounds to the elastic ball 7, giving the elastic ball 7 upward potential energy, which in turn triggers the pressure sensor 5 through the elastic ball 7 and displays the reading.

[0034] When there is a hollow between the ground and the floor, the solid hammer head 4 collides with the ground. At this time, since the ground and the floor are not in contact, the floor cannot effectively transmit force to the ground, which may cause the floor to deform even when subjected to a small external force. When the solid hammer head 4 collides with the floor, the impact force generated is easily absorbed by the floor, so the solid hammer head 4 is not easily subjected to the reaction force generated by the impact. Therefore, the reaction force transmitted to the elastic ball 7 is smaller than that at a position without a hollow, so the triggering pressure of the elastic ball 7 on the pressure sensor 5 is reduced;

[0035] To sum up, when there is no hollowness in the ground and the floor, the reaction force generated by the solid hammer head 4 hitting the floor is greater than the reaction force generated by the solid hammer head 4 hitting the floor when there is hollowness in the ground and the floor. Therefore, the two situations have a greater impact on the pressure sensor 5. Therefore, when in use, the pressure sensor 5 can more clearly show whether there is hollowness in the ground. Therefore, people in non-construction fields can also use this hollow hammer to determine whether there is hollowness in the ground and the floor, which effectively improves the applicability of the device.

[0036] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the pressure structure 15 includes two support rods 151 , which are fixedly connected to both ends of the groove wall of the locking groove 14 , and an elastic sheet 152 is provided on one side of the two support rods 151 facing the positioning groove 12 .

[0037] In this embodiment, two support rods 151 are provided for mounting an elastic sheet 152. When the sliding block 13 rotates to the inside of the locking groove 14, the elastic sheet 152 can apply pressure to the sliding block 13, so that the sliding block 13 and the locking groove 14 are in close contact, thereby achieving the effect of locking the two support rods 151, thereby improving the stability of the telescopic rod 1 and preventing the telescopic rod 1 from being contracted due to force when hitting the floor.

[0038] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the length of the detection spring 6 is equal to the length of the mounting tube 3 .

[0039] In this embodiment, since the length of the detection spring 6 is equal to the length of the mounting tube 3, the elastic ball 7 can be effectively pressed on the top of the solid hammer head 4. When the solid hammer head 4 collides with the floor to generate impact force, the reaction force can be well transmitted to the elastic ball 7, thereby achieving the purpose of improving the sensitivity of the hollow hammer in hollow detection.

[0040] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the top end of the detection spring 6 is connected to the bottom shell of the pressure sensor 5, and a sliding plate 61 is provided at the bottom end of the detection spring 6. The bottom end of the sliding plate 61 is provided with a groove 62 for installing the elastic ball 7.

[0041] In this embodiment, the sliding plate 61 is provided to improve the stability of the elastic ball 7 and the detection spring 6, and the groove 62 is provided to install the elastic ball 7. When the elastic ball 7 and the detection spring 6 are subjected to force, the stability of force transmission can be improved, thereby achieving the purpose of improving the accuracy of the device.

[0042] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the setting of the sliding plate 61 improves the contact between the side wall of the sliding plate 61 and the inner wall of the mounting tube 3. At the same time, an extension rod 63 is provided inside the sliding plate 61, and the extension rod 63 contacts the detection end of the pressure sensor 5.

[0043] In this embodiment, the sliding plate 61 and the detection end of the pressure sensor 5 are brought into contact with each other through the setting of the extension rod 63, and then when the elastic ball 7 is subjected to the reaction force of the solid hammer head 4, the reaction force can be effectively transmitted to the detection end of the pressure sensor 5 through the extension rod 63, further improving the accuracy of the device.

[0044] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the storage structure 2 includes a fixing rod 21, which is connected to the telescopic joint 11. Connecting rubber bands 22 are rotatably provided on both sides of the fixing rod 21, and a locking sleeve 23 that cooperates with the mounting tube 3 is provided at one end of the connecting rubber band 22 away from the fixing rod 21.

[0045] In this embodiment, through the setting of the storage structure 2, after the hollow hammer is used, the mounting tube 3 is rotated again to move the sliding block 13 out of the locking groove 14, so that the telescopic joints 11 are unlocked from each other, and then the telescopic rod 1 is retracted. After the telescopic rod 1 is retracted, the connecting rubber band 22 and the locking sleeve 23 are rotated to the same direction as the mounting tube 3, and then the locking sleeve 23 is sleeved on the outer surface of the mounting tube 3 to achieve the purpose of fixing the mounting tube 3, thereby achieving the storage of the hollow hammer and achieving the effect of easy carrying.

[0046] The embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A portable hollow hammer, characterized in that: The invention comprises a telescopic rod (1), one end of which is provided with a storage structure (2), the telescopic rod (1) is composed of a plurality of telescopic joints (11) connected in a sliding manner, one end of the telescopic joint (11) is provided with a mounting tube (3), the bottom end of the interior of the mounting tube (3) is provided with a solid hammer head (4), the upper end of the mounting tube (3) is provided with a pressure sensor (5), the interior of the mounting tube (3) is provided with a detection spring (6), and the bottom end of the detection spring (6) is provided with an elastic ball (7); A positioning groove (12) is provided inside the telescopic joint (11), a sliding block (13) is provided inside the positioning groove (12), and the sliding block (13) is fixedly connected to the outer wall of another telescopic joint (11) inside the telescopic joint (11), a locking groove (14) is extended from one end of the positioning groove (12) close to the extension opening of the telescopic joint (11), and a pressure structure (15) is provided on the groove wall of the locking groove (14).

2. A portable hollow hammer according to claim 1, characterized in that: The pressure structure (15) comprises two support rods (151), the two support rods (151) being fixedly connected to both ends of the groove wall of the locking groove (14), and elastic sheets (152) are provided on one side of the two support rods (151) facing the positioning groove (12).

3. A portable hollow hammer according to claim 2, characterized in that: The length of the detection spring (6) is equal to the length of the mounting cylinder (3).

4. The portable hollow hammer according to claim 3, characterized in that: The top end of the detection spring (6) is connected to the bottom end housing of the pressure sensor (5), and a sliding plate (61) is provided at the bottom end of the detection spring (6). The bottom end of the sliding plate (61) is provided with a groove (62) for mounting the elastic ball (7).

5. The portable hollow hammer according to claim 4, characterized in that: The side wall of the sliding plate (61) contacts the inner wall of the mounting tube (3), and an extension rod (63) is provided inside the sliding plate (61), and the extension rod (63) contacts the detection end of the pressure sensor (5).

6. The portable hollow drum hammer according to claim 5, characterized in that: The storage structure (2) includes a fixing rod (21), the fixing rod (21) is connected to the telescopic joint (11), and connecting rubber bands (22) are rotatably provided on both sides of the fixing rod (21), and a locking sleeve (23) that cooperates with the installation tube (3) is provided at one end of the connecting rubber band (22) away from the fixing rod (21).

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