Boundary opening device

Abstract

The utility model belongs to the technical field of decoration tools, and particularly relates to a boundary opener which comprises a boundary opener main body and an adjusting screw rod arranged on the boundary opener main body, a bottom plate is formed at the lower end of the boundary opener main body, a top block is upwards arranged on the bottom plate, a pressing plate is arranged at the lower end of the adjusting screw rod, and the pressing plate is located above the bottom plate. A containing space used for containing objects is formed between the pressing plate and the bottom plate, the pressing plate can be driven to move downwards and compress the containing space by rotating the adjusting lead screw, a mounting groove is formed in the boundary opening device body, the adjusting lead screw penetrates through the mounting groove, a spiral groove is formed in the mounting groove, a plurality of balls are arranged in the spiral groove, and when the adjusting lead screw is rotated, the adjusting lead screw is driven to move downwards and compress the containing space. The ball is in contact with the threads on the adjusting lead screw, friction between the adjusting lead screw and the boundary opening device body is reduced, and the boundary opening device is simple in structure, enables friction force to be smaller in the rotating process that the screw rotates to drive the pressing plate to move downwards, and can directly open bricks through the screw.

Description

Technical Field

[0001] The utility model belongs to the technical field of decoration tools, in particular to a boundary opener. Background Art

[0002] A demarcation opener is a tool that can be used to pry open tiles. Usually, workers will draw a sample line on a larger tile, clamp the tile with the demarcation opener, adjust the screw to make the pressure plate approach and press the tile, and then control the fixed handle and the movable handle to pry the tile apart. However, the screw on the demarcation opener is currently usually a triangular thread or a trapezoidal thread. When opening the tile, it is affected by the axial force and the friction is large. Therefore, workers cannot open the tile directly with the screw, and can only open it with the fixed handle and the movable handle. This method is unstable and can easily damage the tile. Therefore, there is a need for a demarcation opener that can reduce the friction during the rotation process when the screw rotates to drive the pressure plate to move downward, and can directly open the tile with the screw. Summary of the invention

[0003] The utility model aims to provide a boundary opener with a simple structure, which can reduce the friction force in the process of rotation when the screw rotates to drive the pressing plate to move downward, and can directly open the bricks through the screw.

[0004] The purpose of the utility model is achieved in this way:

[0005] A boundary opener includes a boundary opener body and an adjusting screw arranged on the boundary opener body, the lower end of the boundary opener body is formed with a bottom plate, the bottom plate is provided with a top block upwardly, the lower end of the adjusting screw is provided with a pressure plate, the pressure plate is located above the bottom plate, and a storage space for placing objects is formed between the pressure plate and the bottom plate, and rotating the adjusting screw can drive the pressure plate to move downward and compress the storage space, the boundary opener body is provided with a mounting groove, the adjusting screw passes through the mounting groove, a spiral groove is provided in the mounting groove, and a plurality of balls are provided in the spiral groove, when the adjusting screw is rotated, the balls contact with the threads on the adjusting screw and reduce the friction between the adjusting screw and the boundary opener body.

[0006] Furthermore, the spiral groove is composed of two layers, and the spiral grooves of each layer are independently connected. A protrusion is also provided in the spiral groove. The middle end portion of the spiral groove is recessed inward to form a ball reverse groove. The protrusion is respectively convexly arranged above and below the ball reverse groove. The adjusting screw is rotated, and the adjusting screw rotates along the protrusion and contacts the ball in the spiral groove. When the adjusting screw rotates one circle, the adjusting screw contacts the protrusion of the next layer.

[0007] Furthermore, a nut mounting seat is provided on the boundary opener body, a threaded hole penetrating the boundary opener body is provided on the nut mounting seat, a threaded rod is provided in the threaded hole, the nut mounting seat is fixed to the boundary opener body through the threaded rod, and the mounting groove is provided in the nut mounting seat.

[0008] Furthermore, a split nut mounting seat is provided on the boundary opener body, and the nut mounting seat includes an outer mounting seat and an inner mounting seat. The outer mounting seat and the inner mounting seat are detachably connected and fixed to the boundary opener body. The detachably connected inner mounting seat and the outer mounting seat are assembled together to form the mounting groove, and the protrusion is formed in the outer mounting seat.

[0009] Furthermore, an adjusting wrench is also provided on the adjusting screw rod, and rotating the adjusting wrench can drive the adjusting screw rod to rotate.

[0010] Furthermore, a top block mounting seat is also provided on the bottom plate, and the top block is arranged in the top block mounting seat and partially exposed from the top block mounting seat.

[0011] Furthermore, a guide groove is provided on the boundary opener body, and a guide portion is laterally formed at the rear end of the pressure plate. One end of the guide portion abuts against the guide groove, driving the adjusting screw to rotate and move downward. The pressure plate moves downward along the guide groove through the guide portion, and a holding handle is also provided at the rear end of the boundary opener body.

[0012] Furthermore, a gripping handle is provided at the rear end of the boundary opener body.

[0013] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

[0014] The utility model is a boundary opener, comprising a boundary opener body and an adjusting screw rod arranged on the boundary opener body, wherein the lower end of the boundary opener body is formed with a bottom plate, a top block is arranged upward on the bottom plate, a pressing plate is arranged at the lower end of the adjusting screw rod, the pressing plate is located above the bottom plate, and a receiving space for placing objects is formed between the pressing plate and the bottom plate, such as Fig.12 As shown, the utility model clamps the tile, and rotating the adjusting screw rod can drive the pressure plate to move downward and compress the accommodating space. The boundary opener body is provided with a mounting groove, the adjusting screw rod passes through the mounting groove, a spiral groove is provided in the mounting groove, and a plurality of balls are provided in the spiral groove. When the adjusting screw rod is rotated, the ball contacts with the thread on the adjusting screw rod and reduces the friction between the adjusting screw rod and the boundary opener body. When the previous boundary opener is used to open the tile, the pressure plate is first driven close to the tile by the screw rod, and then the tile is opened by the fixed handle and the movable handle. This method is unstable in force and it is easy to damage the tile. In addition, the screw rods currently on the market are affected by the axial force during the rotation process, and the friction force is large. Therefore, the user cannot directly open the tile by the screw rod. The utility model opens a mounting groove, and opens a spiral groove in the mounting groove. A plurality of balls are provided in the spiral groove. When the user rotates the adjusting screw rod, the ball contacts with the adjusting screw rod. At this time, the friction force of the adjusting screw rod is smaller than that of the direct contact method. In addition, a plastic pad is also provided on the pressure plate of the utility model to avoid damage to the upper surface of the tile. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a stereogram of the utility model.

[0016] Figure 2 It is a cross-sectional view of the utility model.

[0017] Figure 3 It is an exploded view of the utility model.

[0018] Figure 4 It is a three-dimensional diagram of the main body of the boundary opener of the present utility model.

[0019] Figure 5 It is a stereoscopic diagram of the nut mounting seat of the utility model.

[0020] Figure 6 This is one of the separated views of the nut mounting seat of the utility model.

[0021] Figure 7 This is the second separation diagram of the nut mounting seat of the utility model.

[0022] Figure 8 It is a schematic diagram of the ball in the nut mounting seat of the utility model.

[0023] Fig. 9 It is a schematic diagram of the ball of the utility model in the spiral groove.

[0024] Fig.10 The utility model is a connection diagram of an adjusting spanner, an adjusting screw rod and a pressing plate.

[0025] Fig.11 It is a schematic diagram of the adjusting screw rod of the utility model when it is in contact with the ball.

[0026] Fig.12 It is a schematic diagram of the utility model clamping tiles.

[0027] The meaning of the symbols in the figure:

[0028] 1-body of the delimiter; 2-adjusting screw rod; 3-bottom plate; 4-top block; 5-pressing plate; 6-accommodating space; 7-mounting groove; 8-spiral groove; 9-protrusion; 10-ball; 11-nut mounting seat; 12-outer mounting seat; 13-inner mounting seat; 14-adjusting wrench; 15-top block mounting seat; 16-guide groove; 17-guide part; 18-gripping handle; 19-ball reverse groove. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with specific embodiments:

[0030] A boundary opener comprises a boundary opener body 1 and an adjusting screw rod 2 arranged on the boundary opener body 1, a bottom plate 3 is formed at the lower end of the boundary opener body 1, a top block 4 is arranged upward on the bottom plate 3, a pressing plate 5 is arranged at the lower end of the adjusting screw rod 2, the pressing plate 5 is located above the bottom plate 3, and a receiving space 6 for placing objects is formed between the pressing plate 5 and the bottom plate 3, and rotating the adjusting screw rod 2 can drive the pressing plate 5 to move downward and compress the receiving space 6, a mounting groove 7 is provided on the boundary opener body 1, the adjusting screw rod 2 passes through the mounting groove 7, a spiral groove 8 is provided in the mounting groove 7, and a plurality of balls 10 are arranged in the spiral groove 8, and when the adjusting screw rod 2 is rotated, the balls 10 contact with the threads on the adjusting screw rod 2 and reduce the friction between the adjusting screw rod 2 and the boundary opener body 1.

[0031] The utility model is a boundary opener, comprising a boundary opener body 1 and an adjusting screw rod 2 arranged on the boundary opener body 1, the lower end of the boundary opener body 1 is formed with a bottom plate 3, the bottom plate 3 is provided with a top block 4 upward, the lower end of the adjusting screw rod 2 is provided with a pressing plate 5, the pressing plate 5 is located above the bottom plate 3, and a receiving space 6 for placing objects is formed between the pressing plate 5 and the bottom plate 3, such as Fig.12 As shown, the utility model clamps the tile, and rotating the adjusting screw rod 2 can drive the pressing plate 5 to move downward and compress the accommodating space 6. The demarcation device body 1 is provided with a mounting groove 7, and the adjusting screw rod 2 passes through the mounting groove 7. The mounting groove 7 is provided with a spiral groove 8, and the spiral groove 8 is provided with a plurality of balls 10. When the adjusting screw rod 2 is rotated, the balls 10 contact with the threads on the adjusting screw rod 2 and reduce the friction between the adjusting screw rod 2 and the demarcation device body 1. When the previous demarcation device is used to open the tile, the pressing plate 5 is first driven by the screw to approach the tile, and then the fixed handle and the movable handle are used to open the tile. Bricks, this method uses unstable force and it is easy to damage tiles. In addition, the screws on the market are affected by the axial force during rotation, and the friction is relatively large. Therefore, users cannot directly open bricks with the screws. The utility model opens a mounting groove 7, and a spiral groove 8 is opened in the mounting groove 7. A number of balls 10 are arranged in the spiral groove 8. When the user rotates the adjusting screw 2, the balls 10 contact the adjusting screw 2. At this time, the friction of the adjusting screw 2 is smaller than that of the direct contact method. In addition, a plastic pad is provided on the pressing plate 5 of the utility model to avoid damage to the upper surface of the tile.

[0032] Preferably, the spiral groove 8 is composed of two layers, and the spiral groove 8 of each layer is independently connected. A protrusion 9 is also provided in the spiral groove 8. The middle end part of the spiral groove 8 is recessed inward to form a ball reverse groove 19, and the ball 10 can rotate in the ball reverse groove 19 to reduce the friction force. The protrusions 9 are respectively convexly arranged above and below the ball reverse groove 19. The adjusting screw 2 is rotated, and the adjusting screw 2 rotates along the protrusion 9 and contacts with the ball 10 in the spiral groove 8. When the adjusting screw 2 rotates one circle, the adjusting screw 2 contacts with the protrusion 9 of the next layer. When rotating, the adjusting screw 2 first contacts with the protrusion 9 of the uppermost layer. At this time, the screw rotates and contacts with the ball 10 in the spiral groove 8. As the adjusting screw 2 rotates, the adjusting screw 2 completes one circle and just contacts with the ball 10 for one circle. At this time, the adjusting screw 2 contacts with the protrusion 9 of the lower layer. Since the protrusion 9 and the ball 10 form a spiral shape, the adjusting screw 2 can move downward during the rotation process.

[0033] Preferably, a nut mounting seat 11 is provided on the boundary opener body 1, and a threaded hole penetrating the boundary opener body 1 is provided on the nut mounting seat 11, and a threaded rod is provided in the threaded hole. The nut mounting seat 11 is fixed to the boundary opener body 1 through the threaded rod, and the mounting groove 7 is provided in the nut mounting seat 11. The utility model cooperates with the nut mounting seat 11 and the adjusting screw rod 2, which is convenient for manufacturers to produce and install and improves efficiency.

[0034] Preferably, a split nut mounting seat 11 is provided on the boundary opener body 1, and the nut mounting seat 11 includes an outer mounting seat 12 and an inner mounting seat 13. The outer mounting seat 12 and the inner mounting seat 13 are detachably connected and fixed to the boundary opener body 1, and the detachably connected inner mounting seat 13 and the outer mounting seat 12 are assembled together to form the mounting groove 7, and the protrusion 9 is formed in the outer mounting seat 12. The split type is more convenient for installation, and the outer mounting seat 12 and the inner mounting seat 13 can be assembled together to form a mounting groove 7 suitable for the installation of the adjusting screw 2. The spiral groove 8 is arranged in the mounting groove 7 and is finally formed into a circle of threads that are compatible with the adjusting screw 2. The ball 10 is arranged in the spiral groove 8 and partially protrudes outward. When the adjusting screw 2 rotates, the recess on the adjusting screw 2 rotates along the ball 10, the adjusting screw 2 rotates downward, and the ball 10 repeats in the spiral groove 8.

[0035] Preferably, the adjusting screw rod 2 is also provided with an adjusting wrench 14, and rotating the adjusting wrench 14 can drive the adjusting screw rod to rotate, which is convenient for the user to rotate and increases the contact area and friction with the hand.

[0036] Preferably, a top block mounting seat 15 is further provided on the bottom plate 3 , and the top block 4 is arranged in the top block mounting seat 15 and partially exposed from the top block mounting seat 15 , so as to facilitate the installation of the top block 4 and the replacement of the top block 4 by the user.

[0037] Preferably, a guide groove 16 is further provided on the boundary opener body 1, and a guide portion 17 is laterally formed at the rear end of the pressure plate 5. One end of the guide portion 17 abuts against the guide groove 16, driving the adjusting screw rod 2 to rotate and move downward. The pressure plate 5 moves downward along the guide groove 16 through the guide portion 17. A holding handle 18 is also provided at the rear end of the boundary opener body 1 to keep the adjusting screw rod 2 in the same position during the downward rotation process, thereby playing a guiding role.

[0038] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A delimiter, comprising a delimiter body (1) and an adjusting screw (2) arranged on the delimiter body (1), characterized in that: The lower end of the boundary opener body (1) is formed with a bottom plate (3), and a top block (4) is arranged upward on the bottom plate (3). The lower end of the adjusting screw rod (2) is provided with a pressing plate (5), and the pressing plate (5) is located above the bottom plate (3). A receiving space (6) for placing objects is formed between the pressing plate (5) and the bottom plate (3). Rotating the adjusting screw rod (2) can drive the pressing plate (5) to move downward and compress the receiving space (6). The boundary opener body (1) is provided with a mounting groove (7), and the adjusting screw rod (2) passes through the mounting groove (7). A spiral groove (8) is arranged in the mounting groove (7), and a plurality of balls (10) are arranged in the spiral groove (8). When the adjusting screw rod (2) is rotated, the balls (10) contact the threads on the adjusting screw rod (2) and reduce the friction between the adjusting screw rod (2) and the boundary opener body (1).

2. A boundary opener according to claim 1, characterized in that: The spiral groove (8) is composed of two layers, and the spiral grooves (8) of each layer are connected separately. A protrusion (9) is also provided in the spiral groove (8). The middle end of the spiral groove (8) is recessed inward to form a ball reverse groove (19). The protrusion (9) is respectively convexly arranged above and below the ball reverse groove (19). When the adjusting screw rod (2) is rotated, the adjusting screw rod (2) rotates along the protrusion (9) and contacts the ball (10) in the spiral groove (8). When the adjusting screw rod (2) rotates one circle, the adjusting screw rod (2) contacts the protrusion (9) of the next layer.

3. A boundary opener according to claim 1 or 2, characterized in that: The delimiter body (1) is provided with a nut mounting seat (11), the nut mounting seat (11) is provided with a threaded hole penetrating the delimiter body (1), a threaded rod is provided in the threaded hole, the nut mounting seat (11) is fixed to the delimiter body (1) by the threaded rod, and the mounting groove (7) is provided in the nut mounting seat (11).

4. A boundary opener according to claim 1 or 2, characterized in that: The delimiter body (1) is provided with a split nut mounting seat (11), the nut mounting seat (11) comprising an outer mounting seat (12) and an inner mounting seat (13), the outer mounting seat (12) and the inner mounting seat (13) are detachably connected and fixed to the delimiter body (1), the detachably connected inner mounting seat (13) and the outer mounting seat (12) are assembled to form the mounting groove (7), and the protrusion (9) is formed in the outer mounting seat (12).

5. A boundary opener according to claim 4, characterized in that: The adjusting screw rod (2) is also provided with an adjusting wrench (14), and the adjusting wrench (14) can be rotated to drive the adjusting screw rod to rotate.

6. A boundary opener according to claim 1, characterized in that: A top block mounting seat (15) is also provided on the bottom plate (3), and the top block (4) is arranged in the top block mounting seat (15) and partially exposed from the top block mounting seat (15).

7. A boundary opener according to claim 4, characterized in that: The delimiter body (1) is also provided with a guide groove (16), and the rear end of the pressure plate (5) is laterally formed with a guide portion (17), one end of the guide portion (17) is in contact with the guide groove (16), driving the adjusting screw rod (2) to rotate and move downward, and the pressure plate (5) passes through the guide portion (17) and moves downward along the guide groove (16). The rear end of the delimiter body (1) is also provided with a gripping handle (18).

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