Electric clamp

Abstract

The utility model discloses an electric clamp which comprises a handheld part and a clamping part, the handheld part is used for being held by a user, the clamping part comprises a supporting rod extending out of the handheld part, a sliding part arranged on the supporting rod and a pushing plate capable of moving relative to the sliding part, the pushing plate is connected with a rack which is arranged in the handheld part and can move movably and a connecting shaft connected between the rack and the pushing plate, the rack can be driven to move in the handheld part, the pushing plate is pushed through the connecting shaft to move relative to the sliding part, and the pressing wedge used for leveling the ceramic tiles is clamped or loosened. The pushing device is provided with the sliding part and the pushing plate capable of moving relative to the sliding part, the pushing plate can be driven by the driving device and can act on a pressing wedge in the wedge-shaped leveling spacing system, the device is electrically controlled and operated, the operation is simple, the working intensity is reduced, and the working efficiency is also improved.

Description

Technical Field

[0001] The utility model relates to the field of ceramic tile installation auxiliary equipment, in particular to an electric clamp. Background Art

[0002] In the process of tile installation, the wedge-shaped leveling and spacing system has become the mainstream due to its high efficiency and precision. The system includes a traction member and a compression wedge. The traction member consists of a base and a bridge. The base is placed behind the tile, and the bridge rises vertically from the base to form a window. The compression wedge is wedged into the window, pressing the visible surface of the tile against the base to achieve leveling.

[0003] However, the use of wedge-shaped leveling spacer systems is not perfect. In actual operation, installers need to frequently use manual tools to operate the compacting wedges, which not only increases the intensity of work but also affects work efficiency. In particular, in certain specific environments, such as narrow spaces such as steps, the use of manual tools is more difficult.

[0004] Therefore, in view of the problems existing in the prior art, it is necessary to design a technical solution to solve the above problems. Utility Model Content

[0005] In order to solve the technical problems existing in the prior art, the purpose of the utility model is to provide an electric clamp to solve the above-mentioned technical problems.

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

[0007] An electric clamp for pressing into a wedge during tile leveling, comprising

[0008] A hand-held portion, for a user to hold;

[0009] The clamping part includes a support rod extending from the hand-held part, a sliding part arranged on the support rod, and a propulsion plate movable relative to the sliding part;

[0010] Among them, the propulsion plate is connected to a rack that is movably arranged in the hand-held part and a connecting shaft connected between the rack and the propulsion plate. The rack can be driven to move in the hand-held part and push the propulsion plate to move relative to the sliding part through the connecting shaft, thereby clamping or releasing the pressure wedge used for tile leveling.

[0011] Preferably, a track is provided in the hand-held portion, and the rack is movably arranged on the track, so that the rack can movably move in the hand-held portion.

[0012] Preferably, a sensing component for sensing the moving position of the rack is provided between the track and the rack.

[0013] Preferably, the sensing assembly includes a sensor arranged on the track and a magnet structure arranged on the rack.

[0014] Preferably, it also includes a driving device for driving the rack, the driving device is arranged in the handheld part, and the driving end of the driving device is provided with a gear extending onto the track to engage with the rack.

[0015] Preferably, the track includes two sliding grooves horizontally arranged on both sides of the rack for guiding and limiting the rack.

[0016] Preferably, the device further comprises a switch for controlling the movement of the propulsion plate, a battery arranged in the handheld portion, a display screen for displaying the status of the device, and a main switch.

[0017] Preferably, the hand-held portion has a front end portion and a rear end portion opposite to each other in the length direction, and the diameter of the rear end portion gradually increases as it extends toward the front end portion.

[0018] The utility model is provided with a sliding part and a push plate that can move relative to the sliding part. The push plate can be driven by a driving device and can act on the wedge-shaped leveling interval system to press the wedge. The push plate is installed in the handheld part through a track, and the movement is more stable. It is driven by the cooperation of a gear and a rack, and the position is accurate. The rack and the gear can be arranged in parallel in the handheld part, which reduces the overall length of the device and increases stability. It is electrically controlled and electrically operated, which is simple to operate, reduces the work intensity, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a three-dimensional diagram of an electric clamp in the utility model;

[0021] Figure 2 This is a three-dimensional diagram of an electric clamp in the utility model when in use;

[0022] Figure 3 A three-dimensional diagram of a hidden part of a shell of an electric clamp in the utility model;

[0023] Figure 4 A three-dimensional diagram of an electric clamp in the utility model when a part of the shell is hidden;

[0024] Figure 5 It is a three-dimensional diagram of the sliding part of the utility model;

[0025] Figure 6 It is a simplified structural diagram of the traction component;

[0026] Figure 7 It is a structural schematic diagram of an electric clamp and a wedge-shaped leveling spacing system in the utility model when they cooperate. DETAILED DESCRIPTION

[0027] In order to better understand the technical solution of the present utility model, the embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0028] It should be clear that the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of 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.

[0029] like Figures 1 to 7 As shown, an electric clamp comprises a handheld portion 10 and a clamping portion 20. The handheld portion 10 is configured to be grasped by a user, and the clamping portion 20 is used to clamp a pressure wedge a in a tile c leveling spacing system so that the pressure wedge a acts on a traction member b of the tile c.

[0030] In order to better describe the corresponding structure, the length direction of the electric clamp hand plate is defined as the first direction ( Figure 1 A1 and A2 directions in the figure); the height direction (vertical direction) is the second direction ( Figure 1 B1 and B2 directions in the figure); the direction (width direction) crossing the second direction and the first direction is the third direction ( Figure 1 C1 and C2 directions).

[0031] The handheld portion 10 includes a slender body extending in a first direction, and the slender body has two opposite ends, namely a front end 11 and an opposite rear end 12. When a user grasps the handheld portion 10, the front end 11 is located in front of the index finger (and thumb) of the user's hand. The diameter of the rear end 12 of the handheld portion 10 gradually increases toward the front end 11. Preferably, the length of the diameter change occupies 2 / 3 of the length of the entire slender body, which is convenient for the user to grasp.

[0032] The handheld part 10 can be formed by the assembly of two shells, in which an inner cavity 16 is formed. The two shells can be connected and / or interlocked by tightening screws or other means.

[0033] Preferably, the handle 10 is made of plastic material, for example, obtained by injection molding.

[0034] The clamping part 20 includes a support rod 21 disposed at one end of the handheld part 10, a sliding part 22 disposed on the support rod 21, and a push plate 23 capable of moving relative to the sliding part 22. The push plate 23 is driven to move relative to the sliding part 22, and the gap between the sliding part 22 and the push plate 23 becomes smaller or larger accordingly, thereby clamping or releasing the pressure wedge a, and then leveling the tile c.

[0035] The handheld portion 10 is provided with a slot 111, which connects the inner cavity 16 with the outside of the handheld portion 10. The support rod 21 passes through the slot 111, one end of which is fixed in the inner cavity 16, and the other end extends out of the handheld portion 10 to support the sliding portion 22. Preferably, the end of the support rod 21 extending into the inner cavity 16 can be fixed by a bolt 2221.

[0036] Preferably, the slot 111 is disposed on the front end portion 11 of the handheld portion 10 .

[0037] The support rod 21 is substantially rigid, i.e., it does not deform significantly when subjected to the usual working loads of the intended use. Preferably, the support rod 21 is made of a metal material, such as steel, or a plastic material. The support rod 21 may also be made as a whole with the handle 10, and the support rod 21 and the handle 10 may be made of the same material.

[0038] The support rod 21 is provided with an elongated sliding groove 211 along the first direction, and the sliding groove 211 penetrates the support rod 21 in the third direction.

[0039] The support rod 21 is provided with a sliding portion 22 , and the sliding portion 22 can be slidably adjusted along the sliding groove 211 on the support rod 21 , that is, the sliding portion 22 can be freely positioned at any position of the support rod 21 .

[0040] The sliding portion 22 includes a housing seat 221 mounted on the support rod 21 and a working portion 223 extending below the support rod 21 .

[0041] A gap is provided on the housing seat 221 , through which the support rod 21 passes, and the housing seat 221 can move freely on the support rod 21 .

[0042] The housing seat 221 is also provided with a locking member 222, which locks the housing seat 221 on the support rod 21, and fixes the sliding part 22 at any position of the support rod 21 through the locking member 222. The locking member 222 can be tightened or loosened manually.

[0043] The locking member 222 may include a bolt 2221 and a nut 2222, and a knob 2223 for convenient manual rotation is provided on the nut 2222. The bolt 2221 includes a nut portion and a screw portion, the nut portion is larger than the sliding slot 211 so that it cannot pass through the sliding slot 211, and the screw portion is smaller than the sliding slot 211 so that the bolt 2221 can move along the first direction on the sliding slot 211.

[0044] The nut 2222 is arranged outside the housing seat 221. When installed, the bolt 2221 is installed on the sliding groove 211, and the screw part on the bolt 2221 can pass through the housing seat 221 and cooperate with the nut 2222. When the nut 2222 is tightened, the nut part of the bolt 2221 is in close contact with the side of the support rod 21, and the nut 2222 is in close contact with the outer side of the housing seat 221, so that the housing seat 221 is tightened and fixed on the support rod 21. By loosening the nut 2222, the nut part of the bolt 2221 is away from the sliding groove 211, and the screw part of the bolt 2221 can move in the sliding groove 211, that is, the housing seat 221 can move on the support rod 21.

[0045] The working portion 223 is provided with a working surface 2231 for acting on the pressure wedge a, the working surface 2231 is arranged perpendicular to the first direction, and the working surface 2231 is located on the side of the working portion 223 facing the handheld portion 10. Figure 1 It can also be said that the working surface 2231 is set toward the propulsion plate 23.

[0046] The working part 223 includes a limiting hole 2232, which is arranged at the bottom end of the working part 223. The limiting hole 2232 passes through the sliding part 22 along the first direction and is open along the lower end. In use, the direction of the limiting hole 2232 is parallel to the first direction, and the pressure wedge a can pass through the limiting hole 2232. The limiting hole 2232 is used to limit the pressure wedge a so that it moves along the specified direction (first direction).

[0047] Preferably, the working portion 223 and the outer shell seat 221 may be an integral structure, or the working portion 223 and the outer shell seat 221 may be connected by welding or fixing with bolts 2221 .

[0048] Preferably, in order to ensure the strength of the sliding part 22 , the sliding part 22 may be made of a metal material, such as steel.

[0049] refer to Figure 1 , 4The propulsion plate 23 is connected with a rack 30 that is movable in the handheld portion 10 and a connecting shaft 40 that is connected between the rack 30 and the propulsion plate 23. One side of the propulsion plate 23 is a propulsion surface 231 that is opposite to the working surface 2231, and the other side is connected to the connecting shaft 40, one end of which is connected to the rack 30. The rack 30 is disposed in the inner cavity 16. When the rack 30 is subjected to a driving force, the propulsion plate 23 is driven to move through the connecting shaft 40, so as to approach or move away from the sliding portion 22.

[0050] Preferably, a track 14 is provided in the inner cavity 16 , and the rack 30 is mounted on the track 14 and can move movably, so that the rack 30 can move in the inner cavity 16 .

[0051] refer to Figure 3 or Figure 4 As shown, the track includes two slide grooves 15 horizontally arranged on both sides of the rack 30, that is, the slide grooves 15 are horizontally arranged in the inner cavity 16, and the rack 30 protrudes on both sides in the third direction to cooperate with the two slide grooves 15, so that the track 14 can guide and limit the rack 30 to prevent the rack 30 from deflecting when moving.

[0052] The handheld portion 10 is provided with a through hole 17, and the through hole 17 and the slot 111 are arranged at the same end (ie, the front end portion 11) of the handheld portion 10. The connecting shaft 40 can pass through the through hole 17 and extend into the inner cavity 16.

[0053] A driving device 50 is disposed in the inner cavity 16 of the handheld portion 10 . The driving device 50 is drivingly connected to the rack 30 , and can drive the rack 30 to move on the track 14 .

[0054] Preferably, the driving device 50 is a worm reduction motor, which includes a motor and a gear box connected to the motor, and the gear box extends a gear 51 on one side, and the gear 51 is used to mesh with the rack 30. When the worm reduction motor is working, the gear 51 drives the rack 30 to move forward or backward on the track 14, so that the connecting shaft 40 extends or retracts in the handheld part 10, so that the propulsion plate 23 cooperates with the working part 223 of the sliding part 22 to clamp or release the pressure wedge a.

[0055] The propulsion plate 23 is installed in the handheld part 10 through the track 14 and the rack 30. The rack 30 is limited in the horizontal direction by the track, which can prevent the rack 30 from deflecting and tilting, and the movement of the propulsion plate 23 is more stable. In addition, the device can be arranged in parallel in the handheld part 10 through the rack 30 and the gear 51, which reduces the overall length of the device and increases stability.

[0056] The inner cavity 16 of the handheld part 10 also includes a sensing component for sensing the moving position of the propulsion plate 23. Preferably, the sensing component includes a sensor 60 provided on the track 14 and a magnet structure (not shown) provided on the rack 30. The position of the rack 30 can be located by cooperating with the magnet structure and the sensor 60, thereby controlling the moving distance of the propulsion plate 23. The sensor 60 can be a Hall sensor.

[0057] The push plate 23 is also provided with a limit groove 232. The limit groove 232 is arranged at the top of the push plate 23, and the limit groove 232 is matched with the width of the support rod 21. Preferably, the width of the limit groove 232 is slightly larger than the width of the support rod 21, so that the push plate 23 can move stably along the support rod 21.

[0058] The inner cavity 16 of the handheld portion 10 also includes a control device, which includes a switch 71 for controlling the driving device 50 and a battery 72 for powering the driving device 50. The battery 72 is directly connected to the driving device 50 or connected through a PCB board for power supply. The switch 71 is arranged on the lower side of the handheld portion 10, preferably at the position where the index finger is located when the user holds the handheld portion 10, preferably at the lower side of the transition point of the diameter change between the front end 11 and the rear end 12 of the handheld portion 10. By turning the switch 71 with the index finger, the driving device 50 is controlled to drive the propulsion plate 23 to move, thereby adjusting the position of the pressing wedge a.

[0059] The control device also includes a display screen 73 for displaying the device status and a main switch 74 for turning the device off or on.

[0060] Preferably, the main switch 74 and the display screen 73 are both arranged at the top of the handheld part 10 .

[0061] refer to Figure 6 , Figure 7 The leveling and spacing system includes a traction member b, which includes a base b1 and a bridge b2 vertically protruding from the base b1, and a notch b3 is provided on the bridge b2, and the notch b3 can be inserted into the pressure wedge a. The base b1 is inserted below the adjacent edges of two or more tiles c, the bridge b2 protrudes from the gap between the two or more adjacent tiles c, and the notch b3 is at least partially located above the tile c.

[0062] like Figure 7 As shown, the pressing wedge a is a rectangular wedge having a flat lower surface, which can be arranged to be parallel to the upper surface of the base b1 in use, so as to place the tile c in the flat space formed between the base b1 and the pressing wedge a. The top of the pressing wedge a has a tapered end and an enlarged end along its first direction, and has a variable (and steadily increasing) thickness from the tapered end toward the opposite enlarged end, and the upper surface is an uneven structure such as teeth or knurling.

[0063] The pressing wedge a can be inserted into the notch b3 of the traction member b so that its bottom abuts against the top surface of the tile c. As the pressing wedge a moves in the notch b3, the surface between two or more adjacent tiles c is leveled by the pressing wedge a.

[0064] When the device of the utility model is used, the working surface 2231 of the working part 223 is abutted against the side of the bridge b2 away from the enlarged end of the pressure wedge a, the limiting hole 2232 is sleeved on the pressure wedge a, and the pushing surface 231 of the pushing plate 23 is abutted against the end surface of the enlarged end of the pressure wedge a.

[0065] When the switch 71 is pressed, the driving device 50 drives the rack 30 to move, and the pushing plate 23 pushes the pressing wedge a to be inserted into the notch b3 along a direction (first direction) parallel to the base b1.

[0066] As the pressure wedge a is inserted into the notch b3, the pressure wedge a gradually abuts against the top of the notch b3 and generates an upward force on the bridge b2, so that the base b1 slowly adjusts the bottom surfaces of the two (or more) tiles c to the same height, and the bottom of the pressure wedge a also flattens the top surface between the two (or more) tiles c, thereby achieving the leveling of the tiles c.

[0067] In order to enable the propulsion plate 23 to be reset after use for the next use, the drive device 50 is reversed to the restricted position when the switch 71 is released.

[0068] Also as a protection device, after the switch 71 is powered on, the drive device 50 stops after rotating to the limit position.

[0069] Preferably, the forward limit position and the reverse limit position are determined by the Hall sensor 60 sensing the magnet structure.

[0070] Preferably, the main switch 74 is set to automatically shut down if there is no operation for 10 minutes.

[0071] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An electric clamp used to press in a wedge when leveling tiles, characterized in that: include A hand-held portion, for a user to hold; The clamping part includes a support rod extending from the hand-held part, a sliding part arranged on the support rod, and a propulsion plate movable relative to the sliding part; The push plate is connected to a movably movable rack arranged in the hand-held part and a connecting shaft connected between the rack and the push plate. The rack can be driven to move in the hand-held part, and the push plate is pushed to move relative to the sliding part through the connecting shaft, thereby clamping or releasing the pressure wedge used for tile leveling.

2. The electric clamp according to claim 1, characterized in that: A track is arranged inside the hand-held part, and the rack is arranged on the track and can move movably, so that the rack can move movably inside the hand-held part.

3. The electric clamp according to claim 2, characterized in that: A sensing component for sensing the moving position of the rack is provided between the track and the rack.

4. The electric clamp according to claim 3, characterized in that: The induction component includes a sensor arranged on the track and a magnet structure arranged on the rack.

5. The electric clamp according to claim 2, characterized in that: It also includes a driving device for driving the rack, the driving device is arranged in the handheld part, and a driving end of the driving device is provided with a gear extending onto the track to mesh with the rack.

6. The electric clamp according to claim 2, characterized in that: The track includes two sliding grooves horizontally arranged on both sides of the rack, which are used to guide and limit the rack.

7. An electric clamp according to any one of claims 1 to 6, characterized in that: The device also includes a switch for controlling the movement of the propulsion plate, a battery arranged in the handheld portion, a display screen for displaying the status of the device, and a main switch.

8. An electric clamp according to any one of claims 1 to 6, characterized in that: The hand-held portion has a front end portion and a rear end portion opposite to each other in the length direction, and the rear end portion gradually increases in diameter as it extends toward the front end portion.

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