Ultrasonic detection device for concrete detection

Abstract

The utility model discloses an ultrasonic detection device for concrete detection in the technical field of concrete detection, which comprises an ultrasonic detector main body, the ultrasonic detector main body is mounted on a support device, the support device comprises a base, a lifting mechanism and a mounting mechanism, the ultrasonic detector main body is mounted on the mounting mechanism, and the lifting mechanism is mounted on the base. The mounting mechanism is mounted on the lifting mechanism, and the lifting mechanism is mounted on the base; the lifting mechanism comprises a lifting seat and two lifting rods, the lifting seat is mounted on the base, the two lifting rods ascend and descend along the lifting seat, a locking mechanism for fixing the lifting rods is arranged on the lifting seat and comprises a moving block, a locking block and a locking spring, the moving block is slidably connected into the lifting seat, the locking block is mounted on the side face, close to the lifting rods, of the moving block, and the locking spring is arranged on the locking block. The locking spring drives the locking block to lock the lifting rod through the moving block, so that the lifting rod which moves in place is fixed on the lifting seat, and the height of the ultrasonic detector main body is further fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete detection, in particular to an ultrasonic detection device for concrete detection. Background Art

[0002] Concrete is a general term for engineering composite materials that are made by bonding aggregates into a whole with cementitious materials. The term concrete usually refers to cement as the cementitious material, sand and stone as aggregates, and water (which may contain admixtures and additives) in a certain proportion and mixed together to obtain cement concrete, also known as ordinary concrete, which is widely used in civil engineering.

[0003] After the existing concrete is built and solidified, an ultrasonic detector is needed to detect the quality of the concrete. However, the existing ultrasonic detector has no support device during the detection of concrete. The ultrasonic detector will shake during operation, which will affect the results of the ultrasonic detector on the concrete detection, resulting in a reduction in the working efficiency of the ultrasonic detector, and cannot meet the use requirements of the ultrasonic detector during concrete detection.

[0004] Based on this, the utility model designs an ultrasonic detection device for concrete detection to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an ultrasonic detection device for concrete detection, so as to solve the problem that the existing ultrasonic detector has no supporting device during the detection of concrete, and the ultrasonic detector will shake during operation, which will affect the result of the ultrasonic detector after the concrete detection, resulting in a reduction in the working efficiency of the ultrasonic detector and the inability to meet the use requirements of the ultrasonic detector during concrete detection.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An ultrasonic detection device for concrete detection, comprising an ultrasonic detector body, the ultrasonic detector body is mounted on a supporting device, the supporting device comprises a base, a lifting mechanism and a mounting mechanism, the ultrasonic detector body is mounted on the mounting mechanism, the mounting mechanism is mounted on the lifting mechanism, and the lifting mechanism is mounted on the base;

[0008] The lifting mechanism includes a lifting seat and a lifting rod, the lifting seat is installed on the base, the lifting rod is provided with two and rises and falls along the lifting seat, the lifting seat is provided with a locking mechanism for fixing the lifting rod, the locking mechanism includes a moving block, a locking block and a locking spring, the moving block is slidably connected in the lifting seat, the locking block is installed on the side of the moving block close to the lifting rod, the locking spring drives the locking block through the moving block to lock the lifting rod, so as to fix the lifting rod moved into place on the lifting seat, thereby fixing the height of the ultrasonic detector body.

[0009] As a further solution of the utility model: the mounting mechanism includes a mounting plate and a mounting wall, the mounting wall is provided with a fixing mechanism for fixing the ultrasonic detector body, the fixing mechanism includes a slide plate, a fixing block and a fixing spring, wherein: the slide plate is slidably connected in a fixing cavity, and the fixing cavity is provided on the mounting wall; the fixing block is fixedly mounted on the side of the slide plate and extends toward the direction of the ultrasonic detector body; a plurality of fixing springs are provided and are installed between the side of the slide plate away from the fixing block and the fixing cavity, and the fixing spring drives the fixing block to fix the ultrasonic detector body through the slide plate, so as to fix the ultrasonic detector body on the mounting mechanism.

[0010] As a further solution of the utility model: the locking mechanism also includes a driving rod and a gripper, the driving rod is fixedly mounted on the side of the moving block away from the locking block and extends outside the lifting seat, the gripper is fixedly mounted on the free end of the driving rod and is used to drive the driving rod.

[0011] As a further solution of the utility model: the fixing mechanism includes a limit rod, a pull rod and a handle, wherein: the limit rod corresponds to a plurality of the fixing springs and is inserted in the fixing springs, one end of the limit rod is fixed on the skateboard, and the other end is slidably connected to the mounting wall, and is used to maintain the stability of the skateboard during the sliding process; the pull rod is fixedly installed on the side of the skateboard away from the fixed block and extends outside the mounting wall; the handle is fixedly installed on the free end of the pull rod and is used to drive the pull rod.

[0012] As a further solution of the utility model: the lifting seat is provided with two lifting cavities corresponding to the lifting rod, the lifting rod is lifted and lowered along the lifting cavities, the lifting rod is provided with a plurality of locking holes matching the locking blocks along the length direction, the locking blocks are inserted into the locking holes to fix the lifting rod moved into place on the lifting seat, thereby fixing the height of the ultrasonic detector body; the lifting seat is also provided with a locking cavity for the two moving blocks to slide, and the locking spring is located between the moving block and the inner wall of the locking cavity.

[0013] As a further solution of the utility model: a connecting block and a mounting block are provided on the side of the ultrasonic detector body, the length of the mounting block is greater than the connecting block, and a connecting groove and a mounting groove are opened on the mounting wall, the connecting groove and the mounting groove correspond to and match the connecting block and the mounting block respectively, and the connecting block and the mounting block are slidably inserted into the connecting groove and the mounting groove respectively to install the ultrasonic detector body on the mounting wall.

[0014] As a further solution of the utility model: a driving bevel is provided on the fixing block, and during the process of inserting the mounting block into the mounting groove, the fixing block is driven to leave the mounting groove by the driving bevel, so as to facilitate the installation of the mounting block; a fixing groove is provided on the side of the mounting block close to the mounting block, and the fixing groove corresponds to and matches the fixing block, and the fixing block is inserted into the fixing groove to fix the mounting block installed in the mounting groove.

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

[0016] In the utility model, the main body of the ultrasonic detector is installed on the installation mechanism, and the installation mechanism is installed on the supporting device. The supporting device can fix the installation mechanism and the main body of the ultrasonic detector to prevent the main body of the ultrasonic detector from shaking, which will not affect the result of the ultrasonic detector main body after the concrete is detected, and the working efficiency of the ultrasonic detector main body when detecting concrete is improved. The problem that the main body of the general ultrasonic detector lacks a supporting device when detecting concrete, which will cause the ultrasonic detector to shake during the detection, meets the use requirements of the ultrasonic detector when detecting concrete; the base is used to fix the lifting mechanism; the lifting mechanism can adjust the height of the main body of the ultrasonic detector according to the work requirements of the staff, thereby completing the detection work of the concrete.

[0017] In the utility model, after the lifting rod moves to a position, the locking spring drives the locking block to be inserted into the locking hole through the moving block, so that the lifting rod moved to a position can be fixed on the lifting seat, thereby fixing the height of the ultrasonic detector body.

[0018] In the utility model, a fixed spring drives a slide plate to slide along a fixed cavity, and the slide plate drives a fixed block to fix a mounting block into a mounting groove, so that a main body of an ultrasonic detector is fixed on a mounting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the support device in the utility model;

[0021] Figure 3 It is a top view of the utility model;

[0022] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the fixing mechanism in the utility model;

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the main body of the ultrasonic detector in the utility model.

[0025] In the figure: 1. base; 2. lifting seat; 21. lifting cavity; 22. locking cavity; 3. lifting rod; 31. locking hole; 4. locking mechanism; 41. moving block; 42. locking block; 43. locking spring; 44. driving rod; 45. gripper; 5. mounting mechanism; 51. mounting plate; 52. mounting wall; 53. mounting groove; 54. connecting groove; 55. fixing cavity; 6. ultrasonic detector body; 61. connecting block; 62. mounting block; 63. fixing groove; 7. fixing mechanism; 71. slide plate; 72. fixing block; 73. driving inclined plane; 74. fixing spring; 75. limiting rod; 76. pull rod; 77. handle. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] This embodiment;

[0028] An ultrasonic testing device for concrete testing, see Figure 1-Figure 6 , including an ultrasonic detector body 6, the ultrasonic detector body 6 is installed on a supporting device, the supporting device includes a base 1, a lifting mechanism and a mounting mechanism 5, the ultrasonic detector body 6 is installed on the mounting mechanism 5, the mounting mechanism 5 is installed on the lifting mechanism, and the lifting mechanism is installed on the base 1.

[0029] Through the above technical scheme, in the utility model, the ultrasonic detector body 6 is installed on the installation mechanism 5, and the installation mechanism 5 is installed on the supporting device. The supporting device can fix the installation mechanism 5 and the ultrasonic detector body 6 to prevent the ultrasonic detector body 6 from shaking, and will not affect the result of the ultrasonic detector body 6 after the concrete is detected, thereby improving the working efficiency of the ultrasonic detector body 6 when detecting concrete, and solving the problem that the general ultrasonic detector body 6 lacks a supporting device when detecting concrete, which will cause the ultrasonic detector to shake during detection, and meet the use requirements of the ultrasonic detector when detecting concrete; the base 1 is used to fix the lifting mechanism; the lifting mechanism can adjust the height of the ultrasonic detector body 6 according to the work needs of the staff, thereby completing the detection of concrete.

[0030] In some examples, reference Figure 1-6 As shown, the lifting mechanism includes a lifting seat 2 and a lifting rod 3. The lifting seat 2 is installed on the base 1. Two lifting rods 3 are provided and rise and fall along the lifting seat 2. The lifting seat 2 is provided with two lifting cavities 21 corresponding to the lifting rods 3. The lifting rod 3 rises and falls along the lifting cavities 21. The lifting seat 2 is provided with a locking mechanism 4 for fixing the lifting rod 3.

[0031] Through the above technical scheme, the two lifting rods 3 in the utility model are lifted and lowered along the lifting chamber 21 to adjust the height of the ultrasonic detector body 6, thereby completing the detection of concrete; the lifting seat 2 is fixed by being installed on the base 1; the locking mechanism 4 can fix the lifting rod 3 moved into place to fix the height of the ultrasonic detector body 6.

[0032] In some examples, reference Figure 1-6 As shown, the locking mechanism 4 includes a moving block 41, a locking block 42 and a locking spring 43. The moving block 41 is slidably connected in the lifting seat 2. The locking block 42 is installed on the side of the moving block 41 close to the lifting rod 3. The locking spring 43 drives the locking block 42 to lock the lifting rod 3 through the moving block 41, so as to fix the lifting rod 3 moved into place on the lifting seat 2, thereby fixing the height of the ultrasonic detector body 6. The lifting seat 2 is also provided with a locking cavity 22 for the two moving blocks 41 to slide, and the locking spring 43 is located between the moving block 41 and the inner wall of the locking cavity 22.

[0033] In some examples, reference Figure 1-6 As shown, the lifting rod 3 is provided with a plurality of locking holes 31 along the length direction thereof, which match the locking blocks 42 . The locking blocks 42 are inserted into the locking holes 31 to fix the lifting rod 3 moved into position on the lifting seat 2 , thereby fixing the height of the ultrasonic detector body 6 .

[0034] Through the above technical scheme, after the lifting rod 3 in the utility model moves into position, the locking spring 43 drives the locking block 42 to be inserted into the locking hole 31 through the moving block 41, so that the lifting rod 3 moved into position can be fixed on the lifting seat 2, thereby fixing the height of the ultrasonic detector body 6; the locking cavity 22 is provided for the moving block 41 to slide, which is convenient for driving the locking block 42; a plurality of locking holes 31 are provided and matched with the locking block 42, so that the locking block 42 can fix the lifting rod 3 moved to any position, thereby stabilizing the ultrasonic detector body 6 to any position.

[0035] In some examples, reference Figure 1-6 As shown, the locking mechanism 4 also includes a driving rod 44 and a gripper 45. The driving rod 44 is fixedly mounted on the side of the moving block 41 away from the locking block 42 and extends outside the lifting seat 2. The gripper 45 is fixedly mounted on the free end of the driving rod 44 and is used to drive the driving rod 44.

[0036] Through the above technical scheme, the gripper 45 in the utility model drives the moving block 41 to slide along the locking cavity 22 through the driving rod 44, and the moving block 41 drives the locking block 42 to disengage from the locking hole 31 and compress the locking spring 43, so that the lifting rod 3 can be easily adjusted to change the height of the ultrasonic detector body 6.

[0037] In some examples, reference Figure 1-6 As shown, the mounting mechanism 5 includes a mounting plate 51 and a mounting wall 52. The mounting plate 51 is mounted on the free ends of the two lifting rods 3. The mounting wall 52 is mounted on the mounting plate 51. A connecting block 61 and a mounting block 62 are provided on the side of the ultrasonic detector body 6. The length of the mounting block 62 is greater than that of the connecting block 61. A connecting groove 54 and a mounting groove 53 are provided on the mounting wall 52. The connecting groove 54 and the mounting groove 53 correspond to and match the connecting block 61 and the mounting block 62 respectively. The connecting block 61 and the mounting block 62 are slidably inserted into the connecting groove 54 and the mounting groove 53 respectively to install the ultrasonic detector body 6 on the mounting wall 52.

[0038] Through the above technical scheme, the connecting block 61 and the mounting block 62 on the ultrasonic detector body 6 of the utility model are respectively slidably inserted into the connecting groove 54 and the mounting groove 53, so that the ultrasonic detector body 6 can be installed on the mounting wall 52; the mounting block 62 is longer than the connecting block 61, which can prevent the ultrasonic detector body 6 from leaving the mounting wall 52.

[0039] In some examples, reference Figure 1-6As shown, a fixing mechanism 7 for fixing the ultrasonic detector body 6 is provided on the mounting wall 52, and the fixing mechanism 7 includes a slide plate 71, a fixing block 72 and a fixing spring 74, wherein: the slide plate 71 is slidably connected in the fixing cavity 55, and the fixing cavity 55 is provided on the mounting wall 52; the fixing block 72 is fixedly installed on the side of the slide plate 71 and extends toward the ultrasonic detector body 6; a plurality of fixing springs 74 are provided and are installed between the side of the slide plate 71 away from the fixing block 72 and the fixing cavity 55, and the fixing spring 74 drives the fixing block 72 to fix the ultrasonic detector body 6 through the slide plate 71, so as to fix the ultrasonic detector body 6 on the mounting mechanism 5.

[0040] Through the above technical solution, the fixed spring 74 in the utility model drives the slide plate 71 to slide along the fixed cavity 55, and the slide plate 71 drives the fixed block 72 to fix the mounting block 62 into the mounting groove 53 to fix the ultrasonic detector body 6 on the mounting mechanism 5.

[0041] In some examples, reference Figure 1-6 As shown, a driving inclined surface 73 is provided on the fixing block 72 . When the mounting block 62 is inserted into the mounting groove 53 , the driving inclined surface 73 drives the fixing block 72 to leave the mounting groove 53 , thereby facilitating the installation of the mounting block 62 .

[0042] Through the above technical solution, during the process of inserting the mounting block 62 into the mounting groove 53 in the utility model, the mounting block 62 drives the fixing block 72 to leave the mounting groove 53 through the driving inclined surface 73 and compresses the fixing spring 74 at the same time, so as to facilitate the insertion of the mounting block 62 into the mounting groove 53.

[0043] In some examples, reference Figure 1-6 As shown, a fixing groove 63 is opened on the side of the mounting block 62 close to the mounting block 62 , and the fixing groove 63 corresponds to and matches the fixing block 72 . The fixing block 72 is inserted into the fixing groove 63 to fix the mounting block 62 installed in the mounting groove 53 .

[0044] Through the above technical scheme, after the mounting block 62 in the utility model is inserted into the mounting groove 53, the fixing spring 74 drives the fixing block 72 to be inserted into the fixing groove 63 through the slide plate 71, and fixes the mounting block 62 installed in the mounting groove 53, so as to fix the ultrasonic detector body 6 on the mounting mechanism 5.

[0045] In some examples, reference Figure 1-6 As shown, the fixing mechanism 7 includes a limit rod 75, which corresponds to a plurality of fixing springs 74 and is inserted into the fixing springs 74. One end of the limit rod 75 is fixed to the slide plate 71, and the other end is slidably connected to the mounting wall 52, and is used to maintain the stability of the slide plate 71 during the sliding process.

[0046] Through the above technical solution, the limiting rod 75 in the utility model is slidably connected to the mounting wall 52, which can maintain the stability of the sliding plate 71 sliding along the fixing cavity 55, prevent the sliding plate 71 from getting stuck, and affect the fixation of the fixing block 72 to the mounting block 62.

[0047] In some examples, reference Figure 1-6 As shown, the fixing mechanism 7 includes a pull rod 76 and a handle 77 . The pull rod 76 is fixedly mounted on the side of the slide plate 71 away from the fixing block 72 and extends outside the mounting wall 52 . The handle 77 is fixedly mounted on the free end of the pull rod 76 and is used to drive the pull rod 76 .

[0048] Through the above technical solution, the handle 77 in the utility model drives the slide plate 71 to slide along the fixed cavity 55 through the pull rod 76, and the slide plate 71 drives the fixed block 72 to disengage from the fixed groove 63. Then, the mounting block 62 can be conveniently removed from the mounting groove 53 to realize the disassembly of the ultrasonic detector body 6.

[0049] The working principle of the utility model is:

[0050] First, the connecting block 61 and the mounting block 62 are slidably inserted into the connecting groove 54 and the mounting groove 53 respectively. The mounting block 62 drives the fixing block 72 to leave the mounting groove 53 through the driving inclined surface 73, and compresses the fixing spring 74 at the same time, so that the ultrasonic detector body 6 can be installed on the mounting wall 52. Then, the fixing spring 74 drives the slide plate 71 to slide along the fixing cavity 55, and the slide plate 71 drives the fixing block 72 to be inserted into the fixing groove 63, and the mounting block 62 installed in the mounting groove 53 is fixed, so that the ultrasonic detector body 6 is fixed on the mounting machine. 5; then, the driving rod 44 is pulled by the gripper 45, and the driving rod 44 drives the moving block 41 to slide along the locking cavity 22, and the moving block 41 drives the locking block 42 to disengage from the locking hole 31 and compress the locking spring 43, and then the lifting rod 3 is conveniently adjusted to change the height of the ultrasonic detector body 6; when the ultrasonic detector body 6 moves to an appropriate height, the gripper 45 is released, and the locking spring 43 drives the locking block 42 to be inserted into the locking hole 31 through the moving block 41 to fix the ultrasonic detector body 6 that has moved into place.

[0051] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. An ultrasonic testing device for concrete testing, comprising an ultrasonic testing device body (6), wherein the ultrasonic testing device body (6) is mounted on a supporting device, and is characterized in that: The supporting device comprises a base (1), a lifting mechanism and a mounting mechanism (5), the ultrasonic detector body (6) is mounted on the mounting mechanism (5), the mounting mechanism (5) is mounted on the lifting mechanism, and the lifting mechanism is mounted on the base (1); The lifting mechanism comprises a lifting seat (2) and a lifting rod (3). The lifting seat (2) is mounted on the base (1). Two lifting rods (3) are provided and are lifted and lowered along the lifting seat (2). The lifting seat (2) is provided with a locking mechanism (4) for fixing the lifting rod (3). The locking mechanism (4) comprises a moving block (41), a locking block (42) and a locking spring (43). The moving block (41) is slidably connected in the lifting seat (2). The locking block (42) is mounted on a side of the moving block (41) close to the lifting rod (3). The locking spring (43) drives the locking block (42) through the moving block (41) to lock the lifting rod (3) so as to fix the lifting rod (3) moved into position on the lifting seat (2), thereby fixing the height of the ultrasonic detector body (6).

2. The ultrasonic testing device for concrete testing according to claim 1, characterized in that: The mounting mechanism (5) comprises a mounting plate (51) and a mounting wall (52), the mounting wall (52) being provided with a fixing mechanism (7) for fixing the ultrasonic detector body (6), the fixing mechanism (7) comprising a slide plate (71), a fixing block (72) and a fixing spring (74), wherein: The slide plate (71) is slidably connected in the fixing cavity (55), and the fixing cavity (55) is opened on the installation wall (52); The fixing block (72) is fixedly mounted on the side of the slide plate (71) and extends toward the ultrasonic detector body (6); A plurality of fixing springs (74) are provided and are installed between the side of the slide plate (71) away from the fixing block (72) and the fixing cavity (55). The fixing springs (74) drive the fixing block (72) to fix the ultrasonic detector body (6) via the slide plate (71), so as to fix the ultrasonic detector body (6) on the mounting mechanism (5).

3. The ultrasonic testing device for concrete testing according to claim 2, characterized in that: The locking mechanism (4) further comprises a driving rod (44) and a gripper (45); the driving rod (44) is fixedly mounted on a side of the moving block (41) away from the locking block (42) and extends outside the lifting seat (2); the gripper (45) is fixedly mounted on a free end of the driving rod (44) and is used to drive the driving rod (44).

4. The ultrasonic testing device for concrete testing according to claim 3, characterized in that: The fixing mechanism (7) comprises a limiting rod (75), a pull rod (76) and a handle (77), wherein: The limiting rod (75) corresponds to a plurality of the fixing springs (74) and is inserted into the fixing springs (74); one end of the limiting rod (75) is fixed on the slide plate (71), and the other end is slidably connected to the mounting wall (52), and is used to maintain the stability of the slide plate (71) during the sliding process; The pull rod (76) is fixedly mounted on a side of the slide plate (71) away from the fixing block (72) and extends outside the mounting wall (52); The handle (77) is fixedly mounted on the free end of the pull rod (76) and is used to drive the pull rod (76).

5. The ultrasonic testing device for concrete testing according to claim 4, characterized in that: The lifting seat (2) is provided with two lifting cavities (21) corresponding to the lifting rod (3), the lifting rod (3) is lifted and lowered along the lifting cavities (21), the lifting rod (3) is provided with a plurality of locking holes (31) matching with the locking blocks (42) along the length direction, the locking blocks (42) are inserted into the locking holes (31) to fix the lifting rod (3) moved into position on the lifting seat (2), thereby fixing the height of the ultrasonic detector body (6); The lifting seat (2) is also provided with a locking cavity (22) for the two moving blocks (41) to slide, and the locking spring (43) is located between the moving block (41) and the inner wall of the locking cavity (22).

6. The ultrasonic testing device for concrete testing according to claim 5, characterized in that: A connecting block (61) and a mounting block (62) are provided on the side of the ultrasonic detector body (6); the mounting block (62) is longer than the connecting block (61); a connecting groove (54) and a mounting groove (53) are provided on the mounting wall (52); the connecting groove (54) and the mounting groove (53) correspond to and match the connecting block (61) and the mounting block (62) respectively; the connecting block (61) and the mounting block (62) are slidably inserted into the connecting groove (54) and the mounting groove (53) respectively, so as to mount the ultrasonic detector body (6) on the mounting wall (52).

7. The ultrasonic testing device for concrete testing according to claim 6, characterized in that: The fixing block (72) is provided with a driving inclined surface (73), and when the installation block (62) is inserted into the installation groove (53), the fixing block (72) is driven to leave the installation groove (53) by the driving inclined surface (73), so as to facilitate the installation of the installation block (62); A fixing groove (63) is provided on a side of the mounting block (62) close to the mounting block (62); the fixing groove (63) corresponds to and matches the fixing block (72); the fixing block (72) is inserted into the fixing groove (63) to fix the mounting block (62) installed in the mounting groove (53).

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