Device for testing breaking strength of concrete pavement brick

Abstract

The invention discloses a concrete pavement brick flexural strength testing device, and relates to the technical field of concrete brick detection, the concrete pavement brick flexural strength testing device comprises a base, the upper end of the base is provided with a stretching assembly, and the position of a concrete pavement brick is adjusted through the stretching assembly; according to the concrete pavement brick flexural strength testing device, the positioning cylinder is used for limiting the rotating shaft, so that the whole rotating shaft is in a stable state when rotating, and the condition that the rotating shaft shakes during operation is reduced. A rotating gear is arranged on the inner wall of the protective barrel, the outer surface of the rotating gear is meshed with the outer surface of the transmission gear, meanwhile, the end of the rotating gear penetrates through and extends to the outside of the protective barrel, the rotating gear is perpendicular to the extension line of the central axis of the transmission gear, and a buckle is arranged at the end of the rotating gear and used for clamping the butt joint plate. And the position of the butt joint plate can be adjusted according to the actual state, so that the butt joint plate is assembled at a proper position, and the detection condition of the concrete pavement brick in different angle states is realized.

Description

Technical Field

[0001] The invention relates to a concrete brick detection technology, in particular to a concrete pavement brick flexural strength test device. Background Art

[0002] The concrete pavement brick flexural test is a major indicator for testing whether concrete pavement bricks are qualified. At present, the concrete pavement brick flexural test machine can adopt a flexural test machine, a universal testing machine or a pressure testing machine with a flexural test frame. The accuracy of the testing machine (relative error of indication) is required to be no more than ±1%, and the expected failure load value of the test piece is 20% to 80% of the range. Concrete is a general term for composite materials that are made of gel material, aggregate and water in appropriate proportions and hardened after a certain period of time. It is the most widely used artificial civil construction material in the world. Concrete has high hardness, a wide range of raw materials, and low cost. It is widely used in structures such as houses, roads, military projects, and nuclear power plants.

[0003] A Chinese patent with publication number CN212964420U discloses a brick flexural strength test device for concrete pavement production. The brick flexural strength test device for concrete pavement production can quickly and stably clamp concrete bricks of different sizes through the coordinated use of structures such as a second motor, a clamping plate, a clamping fixing groove, a third slider and a third slide groove, thereby facilitating the subsequent detection of the brick flexural strength. The brick body to be detected can be quickly raised and lowered through the coordinated use of structures such as a second slide groove, a second slider, a cross plate and a hydraulic rod, so that it can quickly approach the working range of the detection device. Finally, the metal top rod can be moved through the coordinated use of structures such as a gear belt, a first motor, a main turntable and a secondary turntable, so as to adjust the stress point of the brick body. By detecting the flexural strength of different stress points of the brick body, the rigor of the final flexural strength data can be guaranteed as much as possible.

[0004] When laying concrete pavement bricks, certain adjustments or docking may be required between the bricks. When the road surface is tilted, the concrete pavement bricks need to be tilted at a certain angle so that the whole is in a fitted state. At the same time, the existing equipment cannot ensure the stability of the bricks when they are fixed, which causes the concrete pavement bricks to fall off easily when they are subjected to force, making the detection unable to operate normally. Therefore, a concrete pavement brick flexural strength test device is developed. Summary of the invention

[0005] The purpose of the present invention is to provide a concrete pavement brick flexural strength test device to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a concrete pavement brick flexural strength test device, comprising a base, a tensile assembly is arranged at the upper end of the base, and the position of the concrete pavement brick is adjusted by the tensile assembly;

[0007] An adjusting assembly is mounted on both sides of the upper end of the stretching assembly, and the angle of the concrete pavement brick is adjusted by the adjusting assembly;

[0008] Wherein, the adjustment component comprises a positioning plate connected to the stretching component, a driving member is arranged at the end of the positioning plate, an output end of the driving member penetrates and extends to the inner cavity of the positioning plate, and a rotating disk is arranged at the output end of the driving member;

[0009] A push rod is provided at one end of the turntable and away from the center, an adjustment plate is rotatably installed at the end of the push rod away from the turntable, a guide groove is provided on one side of the adjustment plate, a rotating shaft is slidably installed on the inner wall of the guide groove, and a locking block is provided at the end of the rotating shaft;

[0010] The inner wall of the positioning plate is provided with a positioning cylinder, and the inner wall of the positioning cylinder is rotatably connected to the outer surface of the rotating shaft. At the same time, a protective cylinder is provided on one side of the positioning plate. The end of the rotating shaft passes through the positioning plate and the protective cylinder in sequence and extends to the outside of the protective cylinder. The outer surface of the rotating shaft located in the inner cavity of the protective cylinder is provided with a transmission gear;

[0011] A docking plate is provided at the end of the rotating shaft, a power piece is provided at the end of the docking plate, a power plate is provided at the output end of the power piece, the outer surface of the power plate is slidably connected to the inner wall of the docking plate, and adjustment rods are rotatably installed at both ends of the power plate;

[0012] The outer surface of the adjusting rod is provided with a positioning shaft, and the two ends of the positioning shaft are rotatably connected to the inner wall of the docking plate. A clamping block is rotatably installed at one end of the adjusting rod away from the power plate, and the concrete pavement bricks are fixed by the clamping block.

[0013] As a further optimization solution of the present invention, the cross-section of the docking plate is concave, and a connecting block is provided at the end of the docking plate, and the end of the connecting block is in contact with the outer surface of the rotating shaft.

[0014] As a further optimization solution of the present invention, the stretching assembly includes a telescopic member connected to the base, and support columns are provided at the upper end of the base and on both sides of the telescopic member.

[0015] As a further optimization solution of the present invention, a limiting block is provided at one opposite end of each of the support columns, and a guide rod is provided at the end of each of the limiting blocks.

[0016] As a further optimization solution of the present invention, a slide plate is provided at the upper end of the telescopic member, and both ends of the slide plate are respectively slidably connected to the outer surfaces of the two guide rods.

[0017] As a further optimization solution of the present invention, a limit plate is provided at the upper end of the support column, an adjustment block is slidably mounted on the outer surface of the limit plate, and a support plate is provided at the upper end of the limit plate.

[0018] As a further optimization solution of the present invention, a transmission wheel is rotatably mounted on the upper end of the skateboard, and a rope is provided on the outer surface of the transmission wheel.

[0019] As a further optimization solution of the present invention, two ends of the rope are respectively connected to opposite ends of the two adjustment blocks.

[0020] As a further optimization solution of the present invention, an elastic member is provided on the inner wall of the limit plate, and one end of the elastic member is connected to the limit plate, and the other end is connected to the adjustment block.

[0021] As a further optimization solution of the present invention, a clamping block is provided at the end of the adjustment block, and the end of the clamping block is connected to the outer surface of the positioning plate.

[0022] Compared with the prior art, the flexural strength test device for concrete pavement bricks provided by the present invention has the following beneficial effects: the positioning cylinder is used to limit the rotating shaft, so that the rotating shaft is in a stable state as a whole when rotating, reducing the shaking of the rotating shaft during operation. The inner wall of the protective cylinder is provided with a rotating gear, and the outer surface of the rotating gear is meshed with the outer surface of the transmission gear. At the same time, the end of the rotating gear passes through and extends to the outside of the protective cylinder. The extension line of the central axis of the rotating gear and the transmission gear is in a vertical state. The end of the rotating gear is provided with a buckle, which is used to clamp the docking plate, and then the position of the docking plate can be adjusted according to the actual state, so that it can be assembled in a suitable position, thereby realizing the detection of concrete pavement bricks in different angles.

[0023] The two adjustment blocks are connected by a rope, and when the transmission wheel moves downward, the rope is pulled synchronously to call, thereby driving the adjustment blocks set at both ends of the rope to move closer to the middle, and cooperate with the clamping block to further limit the concrete pavement bricks to ensure that the concrete pavement bricks will not fall off during the inspection. The elastic piece is used to stretch the adjustment block. When the inspection is completed, the adjustment block is stretched to the initial position through the elastic piece, which is convenient for subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0025] Figure 1 A first schematic diagram of the overall structure provided by an embodiment of the present invention;

[0026] Figure 2 A second schematic diagram of the overall structure provided by an embodiment of the present invention;

[0027] Figure 3 A first cross-sectional view of the overall internal structure provided by an embodiment of the present invention;

[0028] Figure 4 A second cross-sectional view of the overall internal structure provided by an embodiment of the present invention;

[0029] Figure 5 A first schematic diagram of the structure of the regulating component provided by an embodiment of the present invention;

[0030] Figure 6 A second schematic diagram of the structure of the regulating component provided by an embodiment of the present invention;

[0031] Figure 7 A first cross-sectional view of the internal structure of the adjustment assembly provided by an embodiment of the present invention;

[0032] Figure 8 A second cross-sectional view of the internal structure of the adjustment component provided in an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 1. Base; 2. Stretching component; 3. Adjustment component; 21. Telescopic member; 211. Support column; 22. Slide plate; 23. Limit block; 231. Guide rod; 24. Transmission wheel; 25. Limit plate; 26. Adjustment block; 261. Clamping block; 27. Support plate; 28. Rope; 29. ​​Elastic member; 31. Positioning plate; 32. Driving member; 33. Turntable; 34. Push rod; 35. Positioning cylinder; 36. Rotating shaft; 361. Locking block; 362. Protective cylinder; 37. Adjustment plate; 371. Guide groove; 38. Transmission gear; 39. Docking plate; 391. Power member; 392. Power plate; 393. Adjustment rod; 394. Clamping block; 395. Positioning shaft; 396. Connecting block. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Example: See Figure 1-Figure 8 A concrete pavement brick flexural strength test device comprises a base 1, a tensile component 2 is arranged at the upper end of the base 1, and the position of the concrete pavement brick is adjusted by the tensile component 2.

[0038] In this solution, the distance between the adjustment components 3 is driven by the stretching component 2, so as to make it suitable for concrete pavement bricks of different specifications, thereby ensuring that the concrete pavement bricks will not slide during the inspection, thereby improving the stability of the inspection.

[0039] Furthermore, an adjusting component 3 is assembled on both sides of the upper end of the stretching component 2, and the angle of the concrete pavement brick is adjusted by the adjusting component 3; wherein the adjusting component 3 includes a positioning plate 31 connected to the stretching component 2, and a driving member 32 is provided at the end of the positioning plate 31, and the output end of the driving member 32 passes through and extends to the inner cavity of the positioning plate 31, and a turntable 33 is provided at the output end of the driving member 32.

[0040] In this embodiment, the driving member 32 is a device with power output such as a motor, and is connected to an external control device. When the driving member 32 is started, it synchronously drives the turntable 33 arranged at its output end to rotate.

[0041] Furthermore, a push rod 34 is provided at one end of the turntable 33 and away from the center position, and an adjustment plate 37 is rotatably installed at the end of the push rod 34 away from the turntable 33. A guide groove 371 is opened on one side of the adjustment plate 37, and a rotating shaft 36 is slidably installed on the inner wall of the guide groove 371, and a locking block 361 is provided at the end of the rotating shaft 36.

[0042] Specifically, when the turntable 33 rotates, the push rod 34 installed at its end is synchronously driven to move. Since the end of the push rod 34 is rotatably installed with an adjustment plate 37, when the push rod 34 moves, the adjustment plate 37 drives the rotating shaft 36 to rotate.

[0043] A guide groove 371 is provided at the end of the adjustment plate 37, so that the adjustment plate 37 can be adjusted on the outer surface of the shaft 36 to move the adjustment plate 37 to a suitable position. When the turntable 33 rotates, the rotation range of the shaft 36 is adjusted to make it suitable for most scenarios. At the same time, the moving adjustment plate 37 is limited by the locking block 361, so that the adjustment plate 37 remains stable as a whole after adjustment.

[0044] Furthermore, a positioning cylinder 35 is provided on the inner wall of the positioning plate 31, and the inner wall of the positioning cylinder 35 is rotatably connected to the outer surface of the rotating shaft 36. At the same time, a protective cylinder 362 is provided on one side of the positioning plate 31, and the end of the rotating shaft 36 passes through the positioning plate 31 and the protective cylinder 362 in sequence and extends to the outside of the protective cylinder 362. A transmission gear 38 is provided on the outer surface of the rotating shaft 36 located in the inner cavity of the protective cylinder 362.

[0045] Specifically, the positioning cylinder 35 is used to limit the rotating shaft 36 so that the rotating shaft 36 is in a stable state as a whole when rotating, thereby reducing the shaking of the rotating shaft 36 during operation.

[0046] The inner wall of the protective cylinder 362 is provided with a rotating gear, and the outer surface of the rotating gear is meshed with the outer surface of the transmission gear 38. At the same time, the end of the rotating gear passes through and extends to the outside of the protective cylinder 362. The extension line of the central axis of the rotating gear and the transmission gear 38 is vertical. A buckle is provided at the end of the rotating gear, which is used to clamp the docking plate 39. Then, the position of the docking plate 39 can be adjusted according to the actual state so that it can be assembled in a suitable position, thereby realizing the detection of concrete pavement bricks in different angles.

[0047] Furthermore, a docking plate 39 is provided at the end of the rotating shaft 36, a power member 391 is provided at the end of the docking plate 39, a power plate 392 is provided at the output end of the power member 391, the outer surface of the power plate 392 is slidingly connected to the inner wall of the docking plate 39, and adjustment rods 393 are rotatably installed at both ends of the power plate 392.

[0048] Specifically, when the rotating shaft 36 rotates, the docking plate 39 disposed at its end is synchronously driven to rotate until the docking plate 39 rotates to a suitable position and stops.

[0049] The power member 391 is a component with telescopic function such as an electric telescopic rod, and is connected to an external control device. When the power member 391 is started, it synchronously drives the power plate 392 arranged at its output end to move. Since the adjusting rods 393 are rotatably installed at both ends of the power plate 392, the adjusting rods 393 are driven to move when the power plate 392 moves.

[0050] Furthermore, a positioning shaft 395 is provided on the outer surface of the adjusting rod 393, and both ends of the positioning shaft 395 are rotatably connected to the inner wall of the docking plate 39, and a clamp 394 is rotatably installed at one end of the adjusting rod 393 away from the power plate 392, and the concrete pavement bricks are fixed by the clamp 394.

[0051] Specifically, since the outer surface of the adjusting rod 393 is provided with a positioning shaft 395, when the adjusting rod 393 moves, the adjusting rod 393 rotates around the positioning shaft 395, so that the end away from the power plate 392 moves closer or expands toward both ends.

[0052] A clamp block 394 is provided at the end of the power plate 392, and the outer surface of the clamp block 394 is provided with a protective component such as rubber, so that when the two clamp blocks 394 fix the concrete pavement bricks, the whole will not slide.

[0053] Furthermore, the cross section of the docking plate 39 is concave, and a connecting block 396 is provided at the end of the docking plate 39 , and the end of the connecting block 396 is in contact with the outer surface of the rotating shaft 36 .

[0054] Specifically, the connecting block 396 is a component with a fixing function such as a clamp. At the same time, a hole is set at the lower end of the docking plate 39, and the inner wall of the hole can be respectively fitted with the outer surface of the rotating shaft 36 and the outer surface of the end of the rotating gear, so that the position of the docking plate 39 can be adjusted according to the actual state.

[0055] Further, the stretching assembly 2 includes a telescopic member 21 connected to the base 1, and support columns 211 are provided at the upper end of the base 1 and on both sides of the telescopic member 21. A limit block 23 is provided at the opposite end of the support column 211, and a guide rod 231 is provided at the end of the limit block 23. A slide plate 22 is provided at the upper end of the telescopic member 21, and the two ends of the slide plate 22 are respectively slidably connected to the outer surfaces of the two guide rods 231.

[0056] In this embodiment, the telescopic member 21 is a component with a telescopic function such as an electric telescopic rod, and is connected to an external control device. When the telescopic member 21 is started, it synchronously drives the slide plate 22 arranged at its output end to move. Since the outer surfaces of the guide rods 231 are slidably installed at both ends of the slide plate 22, the slide plate 22 is limited to prevent the slide plate 22 from falling off when moving.

[0057] Furthermore, a limit plate 25 is disposed at the upper end of the support column 211 , an adjustment block 26 is slidably mounted on the outer surface of the limit plate 25 , and a support plate 27 is disposed at the upper end of the limit plate 25 .

[0058] Specifically, the connection between the limit plate 25 and the support column 211 is in a vertical state. At the same time, the limit plate 25 provides a moving track for the adjustment block 26, thereby reducing shaking when the adjustment block 26 moves. The support plate 27 is located below the two clamping blocks 394. When the concrete pavement bricks are broken, they are collected by the support plate 27 to reduce the scattering of fragments.

[0059] Furthermore, a transmission wheel 24 is rotatably mounted on the upper end of the slide plate 22, and a rope 28 is provided on the outer surface of the transmission wheel 24. Both ends of the rope 28 are respectively connected to opposite ends of the two adjustment blocks 26. An elastic member 29 is provided on the inner wall of the limit plate 25, and one end of the elastic member 29 is connected to the limit plate 25, and the other end is connected to the adjustment block 26.

[0060] Specifically, the two adjustment blocks 26 are connected by a rope 28, and when the transmission wheel 24 moves downward, the rope 28 is pulled synchronously for calling, thereby driving the adjustment blocks 26 set at both ends of the rope 28 to move closer to the middle, and cooperate with the clamping block 394 to further limit the concrete pavement bricks, ensuring that the concrete pavement bricks will not fall off during detection.

[0061] The elastic member 29 is an elastic member such as a spring, which is used to stretch the adjustment block 26. After the detection is completed, the adjustment block 26 is stretched to the initial position by the elastic member 29, so as to facilitate subsequent continued use.

[0062] Furthermore, a clamping block 261 is provided at the end of the adjusting block 26 , and the end of the clamping block 261 is connected to the outer surface of the positioning plate 31 .

[0063] Specifically, the clamping block 261 is used to limit the positioning plate 31, wherein the clamping block 261 moves synchronously with the adjustment block 26, so that the adjustment block 26 can synchronously drive the entire adjustment component 3 to move when moving, and adjust the distance between the two adjustment components 3 to make it suitable for concrete pavement bricks of different specifications.

[0064] The control device can select a single-chip microcomputer as the control end. In this embodiment, the single-chip microcomputer is a typical embedded microcontroller (Micro controller Unit), which is composed of an arithmetic unit, a controller, a memory, an input and output device, etc., and is equivalent to a microcomputer. Compared with the general-purpose microprocessor used in personal computers, it emphasizes self-supply (no external hardware) and cost saving. Its biggest advantage is that it is small in size and can be placed inside the instrument, but has a small storage capacity, a simple input and output interface, and low functional consumption.

[0065] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A concrete pavement brick flexural strength test device, characterized in that: It comprises a base (1), the upper end of which is provided with a stretching assembly (2), and the position of the concrete pavement bricks is adjusted by means of the stretching assembly (2); An adjusting component (3) is mounted on both sides of the upper end of the stretching component (2), and the angle of the concrete pavement brick is adjusted by the adjusting component (3); The adjusting component (3) comprises a positioning plate (31) connected to the stretching component (2), a driving member (32) is arranged at the end of the positioning plate (31), an output end of the driving member (32) penetrates and extends to the inner cavity of the positioning plate (31), and a rotating disk (33) is arranged at the output end of the driving member (32); A push rod (34) is arranged at one end of the rotating disk (33) away from the center position, an adjusting plate (37) is rotatably mounted at one end of the push rod (34) away from the rotating disk (33), a guide groove (371) is provided on one side of the adjusting plate (37), a rotating shaft (36) is slidably mounted on the inner wall of the guide groove (371), and a locking block (361) is arranged at the end of the rotating shaft (36); The inner wall of the positioning plate (31) is provided with a positioning cylinder (35), the inner wall of the positioning cylinder (35) is rotatably connected to the outer surface of the rotating shaft (36), and a protective cylinder (362) is provided on one side of the positioning plate (31), the end of the rotating shaft (36) sequentially passes through the positioning plate (31) and the protective cylinder (362) and extends to the outside of the protective cylinder (362), and the outer surface of the rotating shaft (36) located in the inner cavity of the protective cylinder (362) is provided with a transmission gear (38); A docking plate (39) is provided at the end of the rotating shaft (36), a power piece (391) is provided at the end of the docking plate (39), a power plate (392) is provided at the output end of the power piece (391), the outer surface of the power plate (392) is slidably connected to the inner wall of the docking plate (39), and adjustment rods (393) are rotatably installed at both ends of the power plate (392); The outer surface of the adjusting rod (393) is provided with a positioning shaft (395), and both ends of the positioning shaft (395) are rotatably connected to the inner wall of the docking plate (39). A clamping block (394) is rotatably installed at one end of the adjusting rod (393) away from the power plate (392), and the concrete pavement bricks are fixed by the clamping block (394).

2. A concrete pavement brick flexural strength test device according to claim 1, characterized in that: The cross section of the docking plate (39) is concave, and a connecting block (396) is provided at the end of the docking plate (39), and the end of the connecting block (396) is in contact with the outer surface of the rotating shaft (36).

3. A concrete pavement brick flexural strength test device according to claim 1, characterized in that: The stretching assembly (2) comprises a telescopic member (21) connected to the base (1), and support columns (211) are provided at the upper end of the base (1) and on both sides of the telescopic member (21).

4. A concrete pavement brick flexural strength test device according to claim 3, characterized in that: A limiting block (23) is provided at one opposite end of the support column (211), and a guide rod (231) is provided at the end of the limiting block (23).

5. A concrete pavement brick flexural strength test device according to claim 4, characterized in that: A slide plate (22) is provided at the upper end of the telescopic member (21), and two ends of the slide plate (22) are respectively slidably connected to the outer surfaces of the two guide rods (231).

6. A concrete pavement brick flexural strength test device according to claim 5, characterized in that: A limit plate (25) is provided at the upper end of the support column (211), an adjustment block (26) is slidably mounted on the outer surface of the limit plate (25), and a support plate (27) is provided at the upper end of the limit plate (25).

7. A concrete pavement brick flexural strength test device according to claim 6, characterized in that: A transmission wheel (24) is rotatably mounted on the upper end of the slide plate (22), and a rope (28) is arranged on the outer surface of the transmission wheel (24).

8. A concrete pavement brick flexural strength test device according to claim 7, characterized in that: Two ends of the rope (28) are respectively connected to opposite ends of two adjustment blocks (26).

9. A concrete pavement brick flexural strength test device according to claim 8, characterized in that: An elastic member (29) is provided on the inner wall of the limiting plate (25), and one end of the elastic member (29) is connected to the limiting plate (25), and the other end is connected to the adjusting block (26).

10. A concrete pavement brick flexural strength test device according to claim 9, characterized in that: A clamping block (261) is provided at the end of the adjustment block (26), and the end of the clamping block (261) is connected to the outer surface of the positioning plate (31).

Images