A house building precise positioning type dusting and lofting vehicle

Abstract

The utility model belongs to the technical field of dusting and lofting vehicle, especially to a house building precision positioning type dusting and lofting vehicle, include: push rod and gyro wheel, gyro wheel rotation is connected in one side of push rod, the other side fixed connection of push rod has the dust discharge hopper, is set up in the inner wall of dust discharge hopper first rotation groove, first rotation groove is rotatably connected with the dust board in, second rotation groove is set up in push rod and is linked with first rotation groove, second rotation groove rotatably connects with the runner, and the one end of runner penetrates the inner wall of second rotation groove and extends to first rotation groove with dust board fixed connection, the utility model fully considers the practical operation convenience, user need not interrupt the current operation process, can according to real-time working condition demand, to the efficient, convenient adjustment of discharging speed, this step greatly shortens the time cost of parameter adjustment, not only significantly improves the construction efficiency, further enhances the flexibility of operation adjustment, provides strong support for smooth construction.

Description

Technical Field

[0001] This utility model belongs to the technical field of ash spreading and layout vehicles, and particularly relates to a ash spreading and layout vehicle for precise positioning in building construction. Background Technology

[0002] The building construction precision positioning mortar spreading and layout vehicle is a piece of equipment used in the construction field. It can accurately position and spread mortar to mark the building outline, axis and other information on the design drawings on the ground with mortar lines, providing a precise benchmark for subsequent construction.

[0003] In existing ash spreading and layout vehicles, if the material discharge speed of the ash hopper cannot be effectively controlled during construction, it is easy to cause problems such as uneven ash line thickness and material waste. In severe cases, it may even affect the accuracy of construction positioning. To solve this core pain point, some equipment has adopted an improved solution of setting up baffle plates on both sides of the ash discharge port and matching them with a gear adjustment device. By adjusting the angle between the baffle plate and the ash discharge port, the distance between adjacent side plates is changed, thereby adjusting the width of the ash spreading port and indirectly controlling the material discharge speed.

[0004] However, this solution still has obvious limitations: since the adjustment device is directly set at the ash discharge port, when the operator finds that the material discharge speed is too fast or too slow during the construction process, it is difficult to adjust the material discharge speed quickly and conveniently according to the real-time needs without interrupting the operation process. This restricts the construction efficiency and adjustment flexibility to a certain extent. In view of this, we propose a building construction precision positioning type ash spreading and setting out vehicle. Utility Model Content

[0005] The purpose of this utility model is to provide a building construction precision positioning mortar spreading and layout vehicle to solve the problems mentioned in the background art.

[0006] In view of this, the present invention provides a building construction precision positioning type mortar spreading and layout vehicle, comprising: A push rod and a roller are provided. The roller is rotatably connected to one side of the push rod, and a ash hopper is fixedly connected to the other side of the push rod. A first rotating groove is provided on the inner wall of the ash hopper, and a baffle plate is rotatably connected in the first rotating groove. The second rotating groove is opened inside the push rod and is connected to the first rotating groove. A rotating wheel is rotatably connected inside the second rotating groove, and one end of the rotating wheel passes through the inner wall of the second rotating groove and extends into the first rotating groove to be fixedly connected to the dust baffle plate. A fixed block is fixedly connected to the push rod. A handle is rotatably connected to the inner wall of the fixed block. One end of the handle is fixedly connected to a pull rope, and one end of the pull rope passes through the push rod and extends into the second rotating groove. One end of the pull rope is wrapped around the rotating wheel once and fixedly connected to the rotating wheel.

[0007] In this technical solution, users can control the feeding speed.

[0008] Furthermore, the above technical solution also includes: A digital display distance sensor is fixedly connected to one side of the ash hopper; A ranging display panel is fixedly connected to a push rod. A data cable is provided on the ranging display panel, and one end of the data cable is fixedly connected to a digital display ranging sensor. Multiple first limiting rings are fixedly connected to the periphery of the push rod, and the data cable is located in the inner cavity of the multiple first limiting rings; Multiple second limiting rings are fixedly connected to the periphery of the push rod, and the pull rope is located in the inner cavity of the multiple second limiting rings.

[0009] In this technical solution, it is ensured that the distance traveled can be displayed in real time when the roller moves on the ground, and that multiple first limit rings and multiple second limit rings can respectively limit the data line and the pull rope.

[0010] Furthermore, the above technical solution also includes: A spring groove is formed inside the push rod and communicates with the second rotating groove. A torsion spring is provided in the spring groove and is located on the circumference of one end of the rotating wheel. One end of the torsion spring is fixedly connected to the inner wall of the spring groove, and the other end of the torsion spring is fixedly connected to the circumference of one end of the rotating wheel.

[0011] In this technical solution, it is ensured that the rotating wheel can be quickly reset.

[0012] Furthermore, the above technical solution also includes: Two sliding grooves are formed inside the fixed block and connected to the outside. Each of the two sliding grooves is slidably connected to a clamping block, and the two clamping blocks are located on the handle. A drive assembly, located within a fixed block, is used to move two clamping blocks.

[0013] In this technical solution, it is ensured that the handle will not rotate due to external influences.

[0014] In the above technical solution, the driving component further includes: The third rotating groove is formed inside the fixed block and is connected to the two sliding grooves. A bidirectional threaded rod is rotatably connected inside the third rotating groove, and both ends of the bidirectional threaded rod extend into the two sliding grooves and are threadedly connected to the two clamping blocks respectively. One end of the bidirectional threaded rod is fixedly connected to a rotating block, and one end of the rotating block penetrates the inner wall of one of the sliding grooves and extends to the outside.

[0015] In this technical solution, it is ensured that the two clamping blocks can be subjected to the action of two sections of opposite threads on the bidirectional threaded rod, and move closer or further apart along the two slides respectively.

[0016] In the above technical solution, further, the two ends of the bidirectional threaded rod are rotatably connected to two sliding grooves respectively, the two threads on the bidirectional threaded rod have opposite directions of rotation, and the two threads on the bidirectional threaded rod have the same pitch.

[0017] In this technical solution, it is ensured that when the bidirectional threaded rod rotates, both ends of the bidirectional threaded rod can rotate normally in the two slides respectively, and it is also ensured that when the bidirectional threaded rod rotates, the two clamping blocks will be subjected to the action of the two sections of threads with opposite directions on the bidirectional threaded rod, and will move closer to each other or further away from each other along the two slides by the same distance.

[0018] In the above technical solution, the rotating block is rotatably connected to one of the sliding grooves and the fixed block, and the handle is rotatably engaged with the two clamping blocks, but they are not connected.

[0019] In this technical solution, it is ensured that when the rotating block rotates, it can rotate normally within one of the sliding grooves and the fixed block. Furthermore, because there is no connection between the handle and the two clamping blocks, the two clamping blocks will not affect the handle when they slide.

[0020] The beneficial effects of this utility model are: 1. This precision-positioning mortar spreading and layout vehicle for building construction, equipped with push rods, rollers, a mortar hopper, a digital display distance sensor, a distance display panel, and a data cable, allows users to spread mortar while simultaneously measuring distances. Through a first rotating groove, a mortar baffle, a rotating wheel, a handle, and a pull rope, users can control the rotation of the mortar baffle within the first rotating groove, adjusting the width of the mortar spreading opening and indirectly controlling the material dispensing speed. The design of this structure fully considers ease of operation; users can efficiently and conveniently adjust the material dispensing speed according to real-time working conditions without interrupting the current work process. This significantly reduces the time cost of parameter adjustments, substantially improving construction efficiency and further enhancing operational flexibility, providing strong support for smooth construction.

[0021] 2. This precision-positioning mortar spreading and layout vehicle for building construction uses multiple first and second limit rings to limit the data cable and pull rope respectively. Through the inclusion of clamping blocks, a bidirectional threaded rod, and a rotating block, the user can move two clamping blocks to hold and fix the handle. This ensures that when the handle rotates to a preset position, the user can fix it in that position. This combined design effectively restrains the swaying displacement of the pull rope and data cable during use, preventing it from interfering with the normal operation of the entire device. Simultaneously, when the handle rotates to the preset position, it achieves a stable lock, preventing unexpected rotation due to external factors and effectively ensuring the stability and accuracy of the device's operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the push rod and ash discharge hopper in this utility model; Figure 3 This is a schematic diagram of the internal structure of the push rod and the ash hopper in this utility model; Figure 4 This is a schematic diagram of the overall structure of the torsion spring in this utility model; Figure 5 This is one of the schematic diagrams of the internal structure of the fixing block in this utility model; Figure 6 This is the second schematic diagram of the internal structure of the fixing block in this utility model.

[0023] The markings in the diagram are as follows: 1. Push rod; 2. Roller; 3. Ash hopper; 4. First rotating groove; 5. Ash baffle plate; 6. Second rotating groove; 7. Rotary wheel; 8. Fixing block; 9. Handle; 10. Pull rope; 11. Digital display distance sensor; 12. First limit ring; 13. Distance display panel; 14. Data cable; 15. Second limit ring; 16. Spring groove; 17. Torsion spring; 18. Slide groove; 19. Clamping block; 20. Third rotating groove; 21. Bidirectional threaded rod; 22. Rotating block. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0025] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0026] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0027] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0028] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0029] Example 1: Please see Figure 1 - Figure 6 As shown, this embodiment provides a building construction precision positioning type mortar spreading and layout vehicle, including: Push rod 1 and roller 2 are rotatably connected to one side of push rod 1, and ash hopper 3 is fixedly connected to the other side of push rod 1. A first rotating groove 4 is provided on the inner wall of ash hopper 3, and a baffle plate 5 is rotatably connected in the first rotating groove 4. The second rotating groove 6 is opened in the push rod 1 and is connected to the first rotating groove 4. A rotating wheel 7 is rotatably connected in the second rotating groove 6, and one end of the rotating wheel 7 passes through the inner wall of the second rotating groove 6 and extends into the first rotating groove 4 to be fixedly connected to the dust baffle 5. A fixed block 8 is fixedly connected to the push rod 1. A handle 9 is rotatably connected to the inner wall of the fixed block 8. A pull rope 10 is fixedly connected to one end of the handle 9. One end of the pull rope 10 passes through the push rod 1 and extends into the second rotating groove 6. One end of the pull rope 10 is wrapped around the rotating wheel 7 and fixedly connected to the rotating wheel 7.

[0030] In operation, the user pours lime powder into the ash hopper 3, then pulls the handle 9 to rotate it within the fixed block 8. As the handle 9 rotates, it pulls the rotating wheel 7 through the rope 10 to rotate within the second rotating groove 6. This rotating wheel 7 then drives the baffle plate 5 to rotate within the first rotating groove 4, controlling the gap between the ash hopper 3 and the baffle plate 5, thus indirectly controlling the discharge speed of the ash hopper 3. Subsequently, the user holds the push rod 1 and pushes the roller 2 to move, allowing the ash hopper 3 to continuously sprinkle lime onto the ground, ensuring that the user can control the discharge speed.

[0031] Example 2: This embodiment provides a precision-positioning mortar spreading and layout vehicle for building construction. In addition to the technical solutions described in the above embodiments, it also has the following technical features, and further includes: Digital display distance sensor 11 is fixedly connected to one side of the ash hopper 3; The ranging display disk 13 is fixedly connected to the push rod 1. A data cable 14 is provided on the ranging display disk 13, and one end of the data cable 14 is fixedly connected to the digital display ranging sensor 11. Multiple first limiting rings 12 are fixedly connected to the periphery of the push rod 1, and the data cable 14 is located in the inner cavity of the multiple first limiting rings 12; Multiple second limiting rings 15 are fixedly connected to the periphery of the push rod 1, and the pull rope 10 is located in the inner cavity of the multiple second limiting rings 15.

[0032] When the roller 2 moves on the ground, the digital display distance sensor 11 transmits the collected information to the distance display panel 13 via the data cable 14, and displays the specific distance moved on the distance display panel 13. When not in use, the user can reset the distance displayed on the distance display panel 13 via the reset button on the distance display panel 13, ensuring that the distance moved on the roller 2 can be displayed in real time when it moves on the ground, and ensuring that the multiple first limit rings 12 and multiple second limit rings 15 can respectively limit the data cable 14 and the pull rope 10.

[0033] Example 3: This embodiment provides a precision-positioning mortar spreading and layout vehicle for building construction. In addition to the technical solutions described in the above embodiments, it also has the following technical features, and further includes: Spring groove 16 is formed inside push rod 1 and communicates with second rotating groove 6. Spring groove 16 is provided with torsion spring 17, and torsion spring 17 is located on the circumference of one end of rotating wheel 7. One end of torsion spring 17 is fixedly connected to the inner wall of spring groove 16, and the other end of torsion spring 17 is fixedly connected to the circumference of one end of rotating wheel 7.

[0034] In use, when the pull rope 10 pulls the rotating wheel 7 to rotate, the rotating wheel 7 will compress the torsion spring 17. When the pull rope 10 stops pulling the rotating wheel 7, the rotating wheel 7 will be subjected to the rebound force of the torsion spring 17 and rotate in the opposite direction to reset, ensuring that the rotating wheel 7 can be quickly reset.

[0035] Example 4: This embodiment provides a precision-positioning mortar spreading and layout vehicle for building construction. In addition to the technical solutions described in the above embodiments, it also has the following technical features, and further includes: Two sliding grooves 18 are formed inside the fixed block 8 and connected to the outside. Each of the two sliding grooves 18 is slidably connected to a clamping block 19, and the two clamping blocks 19 are located on the handle 9. The drive component is located inside the fixed block 8 and is used to move the two clamping blocks 19.

[0036] In use, the user drives the two clamping blocks 19 to move closer or further apart along the two sliding grooves 18. When the two clamping blocks 19 move closer together, they clamp and fix the handle 9 in the inner cavity of the fixing block 8, preventing it from rotating and ensuring that the handle 9 will not be affected by external factors and will not rotate.

[0037] Example 5: This embodiment provides a building construction precision positioning mortar spreading and layout vehicle. In addition to the technical solutions of the above embodiments, it also has the following technical features, and the drive component includes: The third rotating groove 20 is formed inside the fixed block 8 and is connected to the two sliding grooves 18. A bidirectional threaded rod 21 is rotatably connected inside the third rotating groove 20, and both ends of the bidirectional threaded rod 21 extend into the two sliding grooves 18 respectively and are threadedly connected to the two clamping blocks 19 respectively. One end of the bidirectional threaded rod 21 is fixedly connected to a rotating block 22, and one end of the rotating block 22 penetrates the inner wall of one of the sliding grooves 18 and extends to the outside.

[0038] In use, the user rotates the rotating block 22 by hand, causing the rotating block 22 to drive the bidirectional threaded rod 21 to rotate in the third rotating groove 20. This causes the two clamping blocks 19 to be acted upon by the two sections of threads with opposite directions on the bidirectional threaded rod 21, and to move closer to or further away from each other along the two sliding grooves 18.

[0039] Example 6: This embodiment provides a building construction precision positioning mortar spreading and layout vehicle. In addition to the technical solution of the above embodiment, it also has the following technical features: the two ends of the bidirectional threaded rod 21 are respectively rotatably connected to two sliding grooves 18, the two threads on the bidirectional threaded rod 21 have opposite directions of rotation, and the two threads on the bidirectional threaded rod 21 have the same pitch.

[0040] Specifically, it is ensured that when the bidirectional threaded rod 21 rotates, both ends of the bidirectional threaded rod 21 can rotate normally in the two slides 18 respectively, and it is also ensured that when the bidirectional threaded rod 21 rotates, the two clamping blocks 19 will be subjected to the action of the two sections of threads with opposite directions on the bidirectional threaded rod 21, and will move closer to each other or further away from each other along the two slides 18 by the same distance.

[0041] Example 7: This embodiment provides a building construction precision positioning mortar spreading and layout vehicle. In addition to the technical solutions of the above embodiments, it also has the following technical features: the rotating block 22 is rotatably connected to one of the slide grooves 18 and the fixed block 8, and the handle 9 is rotatably engaged with two clamping blocks 19, but there is no connection between them.

[0042] Specifically, when the rotating block 22 rotates, it can rotate normally within one of the slide grooves 18 and the fixed block 8. Furthermore, because there is no connection between the handle 9 and the two clamping blocks 19, when the two clamping blocks 19 slide, they will not affect the handle 9.

[0043] Working principle: In use, the user pours lime powder into the ash hopper 3, then pulls the handle 9 to rotate it within the fixed block 8. As the handle 9 rotates, it pulls the rotating wheel 7 through the rope 10 to rotate within the second rotating groove 6, causing the wheel 7 to rotate within the first rotating groove 4. This controls the gap between the ash hopper 3 and the baffle plate 5, indirectly controlling the speed at which the ash hopper 3 discharges material. The user then holds the push rod 1 and pushes the roller 2 to move, allowing the ash hopper 3 to continuously sprinkle ash onto the ground. Simultaneously, as the roller 2 moves on the ground, the digital display distance sensor 11 transmits the collected information to the distance display panel 13 via the data cable 14, displaying the specific distance traveled. When not in use, the user can reset the distance displayed on the distance display panel 13 using the reset button. When in use, when the pull rope 10 pulls the rotating wheel 7 to rotate, the rotating wheel 7 will compress the torsion spring 17. When the pull rope 10 stops pulling the rotating wheel 7, the rotating wheel 7 will be subjected to the rebound force of the torsion spring 17 and rotate in the opposite direction to reset. In use, the user rotates the rotating block 22 by hand, causing the rotating block 22 to drive the bidirectional threaded rod 21 to rotate in the third rotating groove 20. This causes the two clamping blocks 19 to be acted upon by the two sections of threads with opposite directions on the bidirectional threaded rod 21, moving them closer or further apart along the two sliding grooves 18. When the two clamping blocks 19 are close to each other, they clamp and fix the handle 9 in place, securing it in the inner cavity of the fixing block 8 so that it cannot rotate, thus ensuring that the handle 9 will not be affected by external factors and will not rotate.

[0044] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A precision-positioning mortar spreading and layout vehicle for building construction, characterized in that, include: Push rod (1) and roller (2), the roller (2) is rotatably connected to one side of push rod (1), and the other side of push rod (1) is fixedly connected to ash hopper (3). A first rotating groove (4) is provided on the inner wall of ash hopper (3), and a baffle plate (5) is rotatably connected in the first rotating groove (4). The second rotating groove (6) is opened in the push rod (1) and is connected to the first rotating groove (4). A rotating wheel (7) is rotatably connected in the second rotating groove (6), and one end of the rotating wheel (7) passes through the inner wall of the second rotating groove (6) and extends into the first rotating groove (4) and is fixedly connected to the dust baffle (5). A fixed block (8) is fixedly connected to the push rod (1). A handle (9) is rotatably connected to the inner wall of the fixed block (8). A pull rope (10) is fixedly connected to one end of the handle (9). One end of the pull rope (10) passes through the push rod (1) and extends into the second rotating groove (6). One end of the pull rope (10) wraps around the rotating wheel (7) once and is fixedly connected to the rotating wheel (7).

2. The building construction precision positioning type mortar spreading and layout vehicle according to claim 1, characterized in that, Also includes: A digital display distance sensor (11) is fixedly connected to one side of the ash hopper (3); The ranging display disk (13) is fixedly connected to the push rod (1). The ranging display disk (13) is provided with a data line (14), and one end of the data line (14) is fixedly connected to the digital display ranging sensor (11). Multiple first limiting rings (12) are fixedly connected to the periphery of the push rod (1), and the data line (14) is located in the inner cavity of the multiple first limiting rings (12); Multiple second limiting rings (15) are fixedly connected to the periphery of the push rod (1), and the pull rope (10) is located in the inner cavity of the multiple second limiting rings (15).

3. The building construction precision positioning type mortar spreading and layout vehicle according to claim 1, characterized in that, Also includes: A spring groove (16) is formed inside the push rod (1) and connected to the second rotating groove (6). A torsion spring (17) is provided inside the spring groove (16) and the torsion spring (17) is located on the circumference of one end of the rotating wheel (7). One end of the torsion spring (17) is fixedly connected to the inner wall of the spring groove (16), and the other end of the torsion spring (17) is fixedly connected to the circumference of one end of the rotating wheel (7).

4. The building construction precision positioning type mortar spreading and layout vehicle according to claim 1, characterized in that, Also includes: Two sliding grooves (18) are formed in the fixed block (8) and connected to the outside. Each of the two sliding grooves (18) is slidably connected with a clamping block (19), and the two clamping blocks (19) are located on the handle (9). A drive assembly located within a fixed block (8) and used to move two clamping blocks (19).

5. A precision-positioning mortar spreading and layout vehicle for building construction according to claim 4, characterized in that, The driving component includes: The third rotating groove (20) is opened in the fixed block (8) and connected to the two sliding grooves (18). A bidirectional threaded rod (21) is rotatably connected in the third rotating groove (20), and both ends of the bidirectional threaded rod (21) extend into the two sliding grooves (18) respectively and are threadedly connected to the two clamping blocks (19) respectively. A rotating block (22) is fixedly connected to one end of the bidirectional threaded rod (21), and one end of the rotating block (22) penetrates the inner wall of one of the sliding grooves (18) and extends to the outside.

6. The building construction precision positioning type mortar spreading and layout vehicle according to claim 5, characterized in that, The two ends of the bidirectional threaded rod (21) are rotatably connected to two sliding grooves (18) respectively. The two threads on the bidirectional threaded rod (21) have opposite directions of rotation and the two threads on the bidirectional threaded rod (21) have the same pitch.

7. A precision-positioning mortar spreading and layout vehicle for building construction according to claim 5, characterized in that, The rotating block (22) is rotatably connected to one of the slides (18) and the fixed block (8), and the handle (9) is rotatably engaged with the two clamps (19) without any connection.

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