Electrical clamping device

Abstract

An electrical clamping device used for pressing in a wedge when leveling ceramic tiles, characterized in that it comprises the following: a handle section for a user to grasp; a clamping section comprising a support rod extending from the handle section, a sliding section provided on the support rod, and a sliding plate, which is movable relative to the sliding section; wherein the push plate is connected to a rack which is movably arranged in the handle section and to a connecting shaft which is connected between the rack and the push plate, wherein the rack can be driven to move within the handle section and pushes the push plate via the connecting shaft in such a way that it is moved relative to the sliding section, thereby clamping or releasing a press wedge for leveling ceramic tiles.

Description

TECHNICAL AREA

[0001] The present utility model relates to the field of aids for the installation of ceramic tiles, in particular an electrical clamping device. STATE OF THE ART

[0002] Wedge leveling and spacing systems have become common tools for installing ceramic tiles thanks to their high efficiency and accuracy. Such a system comprises a pull-out component and a wedge. The pull-out component consists of a base and a bridge. The base is attached to the back of a ceramic tile. The bridge extends vertically upwards from the base, forming a window. The wedge is inserted into this window to press the visible surface of the ceramic tile against the base, thus achieving leveling.

[0003] However, the use of a wedge leveling and spacer system is not without its drawbacks. In practice, a fitter often has to use a manual tool to operate the press wedge, which not only increases the workload but also reduces work efficiency. The use of manual tools is particularly difficult in certain environments, such as on stairs and in other confined spaces.

[0004] Therefore, given the problem in the state of the art, it is necessary to create a technical solution to solve the above problem. CONTENTS OF THE PRESENT USE SAMPLE

[0005] The present utility model is based on the task of providing an electrical clamping device in order to solve the aforementioned problem in the prior art.

[0006] According to the present utility model, the problem is solved by the following technical solution: An electric clamping device used to press in a wedge when leveling ceramic tiles includes: a handle section for a user to grasp; a clamping section comprising a support rod extending from the handle section, a sliding section provided on the support rod, and a sliding plate movable relative to the sliding section; wherein the push plate is connected to a rack which is movably arranged in the handle section and to a connecting shaft which is connected between the rack and the push plate, wherein the rack can be driven to move within the handle section and pushes the push plate via the connecting shaft in such a way that it is moved relative to the sliding section, thereby clamping or releasing a press wedge for leveling ceramic tiles.

[0007] Preferably, a rail is provided in the handle section on which the rack is movably arranged, so that the rack can move in the handle section.

[0008] Preferably, a detection arrangement for detecting a movement position of the rack is provided between the rail and the rack.

[0009] Preferably, the detection arrangement comprises a sensor that is arranged on the rail and a magnetic structure that is arranged on the rack.

[0010] Preferably, the electrical clamping device further comprises a drive for driving the rack, wherein the drive is arranged in the handle section and a drive end of the drive is provided with a gear that extends to the rail and engages with the rack.

[0011] Preferably, the rail comprises two sliding grooves arranged horizontally on two sides of the rack, serving to guide and limit the rack.

[0012] Preferably, the electrical clamping device further comprises a switch that controls the movement of the push plate, a battery arranged in the handle section, a display screen for showing the status of the device, and a main switch.

[0013] Preferably, the handle section has a front end and a rear end in the longitudinal direction, which are arranged opposite each other, and the diameter gradually increases from the rear end to the front end.

[0014] The present utility model includes a sliding section and a push plate, which is movable relative to the sliding section. The push plate can be driven by the actuator and acts on a press wedge in a wedge leveling and spacer system. The push plate is mounted on the rail in the handle section, which ensures more stable movement, and is driven by the interaction of the gear and rack, which ensures precise positioning. The gear and rack can be arranged side by side in the handle section, thus shortening the overall length of the device and increasing stability. Electric control and actuation enable simple operation, reduce labor, and further increase work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To better illustrate the technical solutions in exemplary embodiments according to the present utility model, the accompanying drawings of these embodiments are briefly described below. It is understood that the following drawings represent only some of the exemplary embodiments of the present utility model, and that it is possible for a person skilled in the art to derive further drawings from such drawings without inventive steps. These drawings show: Fig. 1 a three-dimensional representation of an electrical clamping device according to the present utility model; Fig. 2 a three-dimensional representation of the electrical clamping device according to the present utility model in use; Fig. 3 a three-dimensional representation of the electrical clamping device according to the present utility model with the housing partially hidden; Fig. 4 a three-dimensional representation of the electrical clamping device according to the present utility model with the housing partially hidden during use; Fig. 5 a three-dimensional representation of a sliding section according to the present utility model; Fig. 6 a schematic structural sketch of a train component; Fig. 7 a schematic structural view of the electrical clamping device according to the present utility model in combination with a wedge leveling and spacer system. DETAILED DESCRIPTION

[0016] To better understand the technical solution of the present utility model, exemplary embodiments of the present utility model are described in more detail with reference to the attached drawings.

[0017] It is understood that the described embodiments represent some of the embodiments of the present utility model, rather than all embodiments. All other embodiments that could be obtained by a person skilled in the art in this field from the embodiments of the present utility model without inventive steps are also within the scope of protection of the present utility model.

[0018] It will be on Fig. Reference is made to sections 1 to 7. An electrical clamping device comprises a handle section 10 and a clamping section 20. The handle section 10 is for gripping by a user. The clamping section 20 is for clamping a press wedge a in a leveling and spacer system for a ceramic tile c, such that the press wedge a acts on a tensile component b of the ceramic tile c.

[0019] To better describe the corresponding structure, the longitudinal direction of the handle section of the electrical clamping device is referred to as the first direction (directions A1 and A2 in Fig. 1) the vertical direction (vertical direction) as the second direction (directions B1 and B2 in Fig. 1) and a direction intersecting the second direction and the first direction (latitude direction) as a third direction (directions C1 and C2 in Fig. 1) defined.

[0020] The handle section 10 comprises a narrow base body extending along the first direction. The narrow base body has two opposite ends, namely a front end 11 and a rear end 12 opposite it. When the user grasps the handle section 10, the front end 11 is located in front of the user's index finger (and thumb). The diameter of the handle section 10 gradually increases from its rear end 12 to its front end 11. Preferably, the length of the variable-diameter portion is 2 / 3 of the total length of the narrow base body to facilitate gripping for the user.

[0021] The handle section 10 can be formed by assembling two housings, and an inner cavity 16 is formed within it. The two housings can be connected and / or locked together by tightening a screw or similar device.

[0022] Preferably, the handle section 10 is made of a plastic material. For example, it can be manufactured by injection molding.

[0023] The clamping section 20 comprises a support rod 21 arranged at one end of the handle section 10, a sliding section 22 provided on the support rod 21, and a push plate 23 movable relative to the sliding section 22. When actuated, the push plate 23 can move relative to the sliding section 22. This causes the gap between the sliding section 22 and the push plate 23 to become smaller or larger, thereby clamping or releasing the press wedge a and thus leveling the ceramic tile c.

[0024] The handle section 10 is provided with a slot 111 that connects the inner cavity 16 with the outer surface of the handle section 10. The support rod 21 extends through the slot 111, and one end of it is secured in the inner cavity 16. The other end protrudes from the handle section 10 and serves to support the sliding section 22. Preferably, the end of the support rod 21 that projects into the inner cavity 16 can be secured by a bolt 2221.

[0025] Preferably, the insertion slot 111 is arranged at the front end 11 of the handle section 10.

[0026] The support rod 21 is essentially rigid. This means that no obvious deformation occurs under a desired normal working load. Preferably, the support rod 21 is made of a metal material, for example steel, or a plastic material. Alternatively, the support rod 21 can be formed as a single unit with the handle section 10, and the support rod 21 and the handle section 10 can be made of one and the same material.

[0027] A narrow sliding slot 211 is provided along the first direction on the support rod 21, which extends through the support rod 21 in the third direction.

[0028] The sliding section 22 is mounted on the support rod 21 and can slide along the sliding slot 211 to adjust its position on the support rod 21. This means that the sliding section 22 can be freely positioned at any point on the support rod 21.

[0029] The sliding section 22 comprises a housing bracket 221 mounted on the support rod 21 and a working section 223 extending below the support rod 21.

[0030] A gap is formed in the housing bracket 221 through which the support rod 21 passes. The housing bracket 221 can move freely on the support rod 21.

[0031] The housing bracket 221 also includes a locking element 222, which locks the housing bracket 221 to the support rod 21. The locking element 222 secures the sliding section 22 at any position on the support rod 21. The locking element 222 can be manually tightened or loosened.

[0032] The locking element 222 can comprise a bolt 2221 or a nut 2222. A knob 2223 is provided on the outside of the nut 2222 to facilitate manual rotation. The bolt 2221 comprises a cap portion and a rod portion. The cap portion is larger than the sliding slot 211, so that it cannot pass through the sliding slot 211. Conversely, the rod portion is smaller than the sliding slot 211, so that the bolt 2221 can move along the sliding slot 211 in the first direction.

[0033] The nut 2222 is located on the outside of the housing bracket 221. During assembly, the bolt 2221 is mounted in the sliding slot 211, and its rod portion can pass through the housing bracket 221 and interact with the nut 2222. When the nut 2222 is tightened, the cap portion of the bolt 2221 rests tightly against the side surface of the support rod 21, and the nut 2222 rests tightly against the outer surface of the housing bracket 221, thus tensioning and securing the housing bracket 221 to the support rod 21. By loosening the nut 2222, the cap portion of the bolt 2221 moves away from the sliding slot 211, and the rod portion of the bolt 2221 can move within the sliding slot 211. This means that the housing bracket 221 can move on the support rod 21.

[0034] The working section 223 is provided with a working surface 2231 that acts on the press wedge a. The working surface 2231 is arranged perpendicular to the first direction and is located on a side of the working section 223 facing the handle section 10. Fig. 1 indicated. In other words, the work surface 2231 is arranged facing the drawer plate 23.

[0035] The working section 223 includes a limiting hole 2232, which is located at the lower end of the working section 223, extends along the first direction through the sliding section 22, and is open at its lower end. In use, the limiting hole 2232 runs parallel to the first direction, and the press wedge a can pass through the limiting hole 2232. The limiting hole 2232 serves to confine the press wedge a so that it moves along a defined direction (the first direction).

[0036] Preferably, the working section 223 and the housing bracket 221 can be formed as a single piece. Alternatively, the working section 223 and the housing bracket 221 can be joined together by welding or by fastening them via the bolt 2221.

[0037] Preferably, the sliding section 22 can be made of a metallic material, for example steel, to ensure the strength of the sliding section 22.

[0038] It will be on Fig. 1 and Fig. 4. The push plate 23 is connected to a rack 30, which is movably arranged in the handle section 10, and to a connecting shaft 40, which is connected between the rack 30 and the push plate 23. One side of the push plate 23 is a push surface 231 opposite the working surface 2231, and the other side is connected to the connecting shaft 40. One end of the connecting shaft 40 is connected to the rack 30. The rack 30 is arranged in the inner cavity 16. When a drive force is applied to it, the rack 30 drives the push plate 23 via the connecting shaft 40, causing it to move towards or away from the sliding section 22.

[0039] Preferably a rail 14 is provided in the inner cavity 16, on which the rack 30 is movably mounted, so that the rack 30 can move in the inner cavity 16.

[0040] As in Fig. 3 or Fig. As shown in Figure 4, the rail includes two sliding grooves 15 arranged horizontally on two sides of the rack 30. That is, the sliding grooves 15 are arranged horizontally in the inner cavity 16, and the two sides of the rack 30 project in the third direction to interact with the two sliding grooves 15, so that the rail 14 can guide and limit the rack 30 to prevent misalignment during the movement of the rack 30.

[0041] The handle section 10 is provided with a through-hole 17. The through-hole 17 and the insertion slot 111 are located at the same end (namely the front end 11) of the handle section 10. The connecting shaft 40 can pass through the through-hole 17 and project into the inner cavity 16.

[0042] In the inner cavity 16 of the handle section 10 a drive 50 is provided, which is connected to the rack 30 in a drive manner and can drive the rack 30 to move on the rail 14.

[0043] Preferably, the drive 50 is an electric motor with a torque reducer, comprising an electric motor and a gearbox connected to the electric motor. A gear 51 extends from one side of the gearbox and engages with the rack 30. When the electric motor with torque reducer is operated, the gear 51 drives the rack 30 to move forward or backward on the rail 14, causing the connecting shaft 40 to extend from and retract into the grip section 10. This allows the push plate 23 to interact with the working section 223 of the sliding section 22 to clamp or release the press wedge a.

[0044] The push plate 23 is mounted in the handle section 10 via the rail 14 and the rack 30. The rack 30 is limited in the horizontal direction by the rail, thus preventing twisting or misalignment of the rack 30 and ensuring more stable movement of the push plate 23. By arranging the rack 30 and the gear 51 side by side in the handle section 10, the overall length of the device is reduced and its stability is increased.

[0045] The inner cavity 16 of the handle section 10 further comprises a detection arrangement for sensing the movement position of the push plate 23. Preferably, the detection arrangement comprises a sensor 60 arranged on the rail 14 and a magnetic structure (not marked) arranged on the rack 30. By the interaction of the magnetic structure with the sensor 60, the rack 30 can be positioned, thereby controlling the movement distance of the push plate 23. The sensor 60 can be a Hall sensor.

[0046] The sliding plate 23 is further provided with a limiting recess 232. The limiting recess 232 is formed at the uppermost region of the sliding plate 23. The limiting recess 232 is matched to the width of the support rod 21; preferably, the width of the limiting recess 232 is slightly larger than the width of the support rod 21, so that the sliding plate 23 can move stably along the support rod 21.

[0047] The inner cavity 16 of the handle section 10 further comprises a control unit, which includes a switch 71 that controls the drive 50, and a battery 72 that supplies power to the drive 50. The battery 72 is connected directly to the drive 50 or to it via a circuit board to supply power. The switch 71 is arranged at the bottom of the handle section 10, preferably at the position where the index finger is located when the user grasps the handle section 10, and furthermore preferably at the bottom of a transition point of variable diameter between the front end 11 and the rear end 12 of the handle section 10. By actuating the switch 71 with the index finger, the drive 50 is controlled such that it drives the push plate 23 to move, thereby adjusting the position of the press wedge a.

[0048] The control system also includes a display screen 73, which serves to display the status of the device, and a main switch 74, which serves to switch the device off or on.

[0049] Preferably, both the main switch 74 and the display screen 73 are arranged at the top of the handle section 10.

[0050] It will be on Fig. 6 and Fig. 7. The leveling and spacer system comprises the tensioning component b, which includes a base b1 and a bridge b2 that projects vertically from the base b1. A recess b3 is provided in the bridge b2, into which the press wedge a can be inserted. The base b1 is inserted so that it lies below adjacent edges of two or more ceramic tiles c. The bridge b2 projects across a gap between two or more adjacent ceramic tiles c. The recess b3 is located at least partially above the ceramic tiles c.

[0051] As in Fig.As shown in Figure 7, the press wedge a is a rectangular wedge with a flat lower surface. When in use, the lower surface can be positioned parallel to the upper surface of the base b1, so that the ceramic tiles c lie in a flat space formed between the base b1 and the press wedge a. The uppermost region of the press wedge a has a conical end and a flared end along the first direction, and its thickness varies (and increases steadily) from the conical end to the opposite flared end. Its upper surface has an uneven structure, for example, with teeth or knurling.

[0052] The press wedge a can be inserted into the recess b3 of the tensioning component b, so that its lowermost area rests against the upper surfaces of the ceramic tiles c. As the press wedge a moves within the recess b3, the sides between two or more adjacent ceramic tiles c are leveled by the press wedge a.

[0053] When using the device according to the present utility model, the working surface 2231 of the working section 223 rests against a side surface of the bridge b2 facing away from the flared end of the press wedge a. The limiting hole 2232 is pushed onto the press wedge a, so that the shear surface 231 of the shear plate 23 rests against the end surface of the flared end of the press wedge a.

[0054] Switch 71 is pressed. The drive 50 powers the rack 30 for movement. The push plate 23 pushes the press wedge a in such a way that it is inserted into the recess b3 along a direction parallel to the base b1 (the first direction).

[0055] As the press wedge a is inserted into the recess b3, it gradually presses against the uppermost part of the recess b3 and exerts an upward force on the bridge b2, so that the base b1 slowly adjusts the bottom surfaces of two (or more) ceramic tiles c until they are at the same height. Simultaneously, the lowermost part of the press wedge a flattens the top surfaces of two (or more) ceramic tiles c. Thus, the ceramic tiles c are leveled.

[0056] In order for the push plate 23 to be reset for the next use after use, the drive 50 rotates backwards to a limit position when the drive 50 releases the switch 71.

[0057] Similarly, to protect the device, it is provided that after the switch 71 is energized, the drive 50 rotates forward to a limit position and is then stopped.

[0058] Preferably, the forward rotation limit position and the reverse rotation limit position are determined by the Hall sensor 60 detecting the magnetic structure.

[0059] Preferably the main switch 74 is designed such that an automatic power cut-off or switch-off occurs if no actuation occurs within 10 minutes while in the switched-on state.

[0060] So far, only some embodiments of the present utility model have been explained. For those skilled in the art in this field, various variants and further developments are possible without deviating from the basic ideas of the present utility model, which are intended to be within the scope of protection of the present utility model.

Claims

[1] Electric clamping device used to press in a pressure wedge when levelling ceramic tiles, characterized by that it includes: a handle portion for a user to grasp; a clamping portion including a support rod extending from the handle portion, a sliding portion provided on the support rod, and a pushing plate, which is movable relative to the sliding portion; wherein the push plate is connected to a rack movably disposed in the handle portion and a connecting shaft connected between the rack and the push plate, wherein the rack can be driven to move within the handle portion and pushes the push plate via the connecting shaft such that it is moved relative to the sliding portion, whereby a press wedge for leveling ceramic tiles is clamped or released. [2] Electrical clamping device according to claim 1, characterized by that a rail is provided in the handle section, on which the rack is movably arranged so that the rack can move in the handle section. [3] Electrical clamping device according to claim 2, characterized by that a detection arrangement for detecting a movement position of the rack is provided between the rail and the rack. [4] Electrical clamping device according to claim 3, characterized by that the detection arrangement comprises a sensor arranged on the rail and a magnetic structure arranged on the rack. [5] Electrical clamping device according to claim 2, characterized bythat it further comprises a drive for driving the rack, wherein the drive is arranged in the handle portion and a drive end of the drive is provided with a gear extending to the rail and engaging with the rack. [6] Electrical clamping device according to claim 2, characterized by that the rail comprises two sliding grooves arranged horizontally on two sides of the rack and serves to guide and limit the rack. [7] Electrical clamping device according to one of claims 1 to 6, characterized by that it further comprises a switch that controls the movement of the push plate, a battery arranged in the handle portion, a display screen that serves to display the state of the device, and a main switch. [8] Electrical clamping device according to one of claims 1 to 6, characterized bythat the handle portion has a front end and a rear end arranged opposite each other in the length direction, and the diameter gradually increases from the rear end to the front end.

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