Paper pressing device with adjustable paper pressing angle

Abstract

The utility model relates to a paper pressing device with an adjustable paper pressing angle. The paper pressing device comprises a telescopic assembly, the telescopic assembly comprises a fixed part and a movable part, and an adjusting structure capable of adjusting the relative vertical distance between the movable part and the fixed part is arranged between the fixed part and the movable part; the multiple paper pressing sheets are annularly distributed on the outer side of the telescopic assembly, and each paper pressing sheet is provided with an abutting inclined plane; the upper end of the paper pressing piece is hinged to the fixed piece, the paper pressing piece can rotate relative to the fixed piece, the middle or the lower end of the paper pressing piece is connected with the movable piece, a pushing structure used for pushing the paper pressing piece to rotate is arranged between the paper pressing piece and the movable piece, and when the movable piece moves relative to the fixed piece, the paper pressing piece is pushed by the pushing structure and rotates relative to the fixed piece. The paper pressing device can press the filter paper in the early stage, and the upper end of the filter paper is prevented from popping out of the filter cup; meanwhile, the angle of the paper pressing sheet can be adjusted according to the inclination angle of filtering, so that the abutting area of the abutting inclined plane of the paper pressing sheet and the filter paper is maximum, and subsequent brewing is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee brewing auxiliary tools, in particular to a paper press with an adjustable paper pressing angle. Background Art

[0002] At present, many coffees are brewed manually. When brewing coffee powder manually, a filter cup and filter paper are generally used as auxiliary tools. The filter paper is attached to the upper end of the filter cup to filter the coffee liquid. At present, coffee filter paper generally uses filter paper with higher hardness. When using the filter paper, the filter paper raw material needs to be folded into a shape that matches the upper end of the filter cup. The filter cup generally adopts a conical shape. When the filter paper is placed in the filter cup, the filter paper needs to be pressed downward and pressed into the filter cup. During this process, the lower end of the filter paper will become narrower and shrink to form a certain elastic force. When the elastic force is large enough, once the filter paper is loosened, the upper end of the filter paper will pop out of the filter cup, which greatly affects the subsequent brewing action. Summary of the Invention

[0003] The purpose of the utility model is to address the deficiencies of the existing technology and provide a paper presser with an adjustable paper pressing angle, which can press the filter paper in the early stage to prevent the upper end of the filter paper from popping out of the filter cup, thereby facilitating subsequent brewing.

[0004] A paper press with an adjustable paper pressing angle, comprising:

[0005] The telescopic assembly includes a fixed part and a movable part, wherein an adjustment structure capable of adjusting the relative vertical distance between the movable part and the fixed part is provided between the fixed part and the movable part;

[0006] Multiple paper pressing plates are distributed in a ring shape on the outside of the telescopic component, and the paper pressing plates are provided with a pressing inclined surface; the upper end of the paper pressing plate is hinged to the fixed part, and the paper pressing plate can rotate relative to the fixed part; the middle or lower end of the paper pressing plate is connected to the movable part, and a pushing structure for pushing the paper pressing plate to rotate is provided between the paper pressing plate and the movable part. When the movable part moves relative to the fixed part, the paper pressing plate is pushed by the pushing structure and rotates relative to the fixed part.

[0007] Furthermore, the fixing part includes an upper main body and an upper ring sleeved on the outside of the upper main body, a plurality of upper connecting blocks are connected between the upper ring and the upper main body, and an upper movable gap is formed between the upper ring and the upper main body. The upper end of the paper pressing piece is provided with a connecting hole, the outer end of the connecting hole forms a plug-in hole for plugging with the upper ring, and the inner end of the connecting hole forms an axial hole matching with the upper ring. Preferably, the opening width of the plug-in hole is smaller than the aperture of the axial hole.

[0008] Furthermore, the movable part includes a lower main body and a lower sleeve ring sleeved on the outer side of the lower main body, a plurality of lower connecting blocks are connected between the lower sleeve ring and the lower main body, and a lower movable gap is formed between the lower sleeve ring and the lower main body.

[0009] Furthermore, an inclined sliding groove is provided on the inner side of the lower end of the paper pressing piece.

[0010] Furthermore, the paper pressing piece is provided with a lower engaging hole communicating with the upper end of the slide groove.

[0011] Furthermore, the adjustment structure includes a transmission rod movably connected to the fixing member, the transmission rod can rotate relative to the fixing member, and the lower end of the transmission rod is provided with an external thread and passes through the fixing member to be threadedly connected to the movable member.

[0012] Preferably, the adjustment structure further includes a spring for pushing the movable part downward.

[0013] More preferably, a concave accommodating hole is provided at the lower end of the upper main body, and the upper end of the movable member is inserted into the concave accommodating hole.

[0014] Furthermore, a limiting groove is provided in the middle of the transmission rod, and a shaft retaining ring is provided in the concave accommodating hole. The shaft retaining ring is sleeved in the limiting groove, and the upper end of the spring is against the shaft retaining ring; preferably, the upper end of the transmission rod extends out of the fixing piece, and more preferably, the upper end of the transmission rod is connected to an operating head.

[0015] Furthermore, the adjustment structure includes a vertical through-hole arranged in the middle of the upper main body, and a movable part extends upward from the upper end of the lower main body, and the movable part passes through the vertical through-hole; preferably, a screw extends upward from the upper end of the movable part and is threadedly connected to an operating head through the screw.

[0016] Preferably, the lower main body is sleeved with a friction ring, which abuts against the inner side wall of the concave accommodating hole.

[0017] Furthermore, the side wall of the concave accommodating hole is provided with N groups of positioning holes, each group of positioning holes includes at least 2 vertically distributed positioning holes, the side of the movable part is provided with N mounting holes, and positioning beads are provided in the mounting holes. A part of the positioning beads protrudes from the mounting holes. When the positioning beads are arranged relative to the positioning holes, a part of the positioning beads extends into the positioning holes, and N is 1-3.

[0018] Preferably, the diameter of the positioning hole is smaller than the diameter of the positioning bead; more preferably, an elastic member for pushing the positioning bead outward is provided in the mounting hole.

[0019] The beneficial effects of the present invention are as follows: the paper presser of the present invention can press the filter paper in the early stage to prevent the upper end thereof from popping out of the filter cup; at the same time, the angle of the paper press can be adjusted according to the inclination angle of the filter, so that the pressing inclined surface of the paper press and the pressing area of the filter paper are maximized, which is convenient for subsequent brewing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the first structure of this embodiment.

[0021] Figure 2 This is a schematic diagram of the first structure of the telescopic assembly of this embodiment.

[0022] Figure 3 Schematic diagram of the structure of the paper pressing sheet of this embodiment.

[0023] Figure 4 Schematic diagram of the structure of the fixing member of this embodiment.

[0024] Figure 5 This is a schematic diagram of the first structure of this embodiment without the fixing parts and the paper pressing piece.

[0025] Figure 6 This is a cross-sectional schematic diagram of the first structure of this embodiment.

[0026] Figure 7 This is a schematic diagram of the second structure of this embodiment.

[0027] Figure 8 This is a schematic diagram of the second structure of this embodiment without the operating head.

[0028] Figure 9 This is a schematic diagram of the second structure of this embodiment with the paper pressing sheet removed.

[0029] Figure 10 for Figure 9 A schematic diagram of removing the fixings.

[0030] Figure 11 This is a schematic diagram of the fixing member, spring and shaft retaining ring in the second structure of this embodiment.

[0031] Figure 12 This is a schematic diagram of the third structure of this embodiment.

[0032] Figure 13 This is a schematic diagram of an exploded view of the third structure of this embodiment.

[0033] Figure 14 This is a cross-sectional schematic diagram of the third structure of this embodiment without the operating head.

[0034] Figure 15 This is a schematic diagram of the third structure of this embodiment without the operating head, paper pressing piece, and fixing parts.

[0035] Figure 16 This is a schematic diagram of the third structure of this embodiment without the operating head and paper pressing piece.

[0036] Figure 17 This is a cross-sectional schematic diagram of the fourth structure of this embodiment.

[0037] Reference numerals:

[0038] 1 - Paper pressing piece; 2 - Fixed part; 3 - Moving part; 4 - Spring; 5 - Transmission rod; 6 - Operating head; 7 - Positioning column; 8 - Positioning bead; 9 - Friction ring; 10 - Shaft retaining ring;

[0039] 11 - pressing inclined surface; 12 - slide groove; 13 - lower clamping hole; 14 - plug-in hole; 15 - shaft hole; 16 - connection hole;

[0040] 21 - upper connecting block; 22 - upper collar; 23 - upper main body; 231 - recessed receiving hole; 232 - positioning hole;

[0041] 31——lower main body; 32——lower connecting block; 33——lower collar; 311——movable part; 312——screw. DETAILED DESCRIPTION

[0042] The following is a detailed description of the present invention with reference to the accompanying drawings. Figure 1 shown.

[0043] Example: See Figures 1 to 17 ; A paper press with adjustable paper pressing angle, which includes: a telescopic assembly and multiple paper presses 1, the telescopic assembly includes a fixed part 2 and a movable part 3, and an adjustment structure is provided between the fixed part 2 and the movable part 3, which can adjust the relative vertical distance between the movable part 3 and the fixed part 2; the multiple paper presses 1 are distributed in a ring on the outside of the telescopic assembly, and the paper presses 1 are provided with a pressing inclined surface 11; the upper end of the paper press 1 is hinged to the fixed part 2, and the paper press 1 can rotate relative to the fixed part 2, the middle or lower end of the paper press 1 is connected to the movable part 3, and a pushing structure for pushing the paper press 1 to rotate is provided between the paper press 1 and the movable part 3. When the movable part 3 moves relative to the fixed part 2, the paper press 1 is pushed by the pushing structure and rotates relative to the fixed part 2.

[0044] When brewing coffee, first unfold the filter paper and place it in the filter cup. The upper end of the filter paper pops out of the filter cup and is located above the filter cup. At this point, a paper press is placed in the filter cup. Under the weight of the paper press, the paper press presses the filter paper into the filter cup, and the paper pressing piece 1 on the paper press abuts against the filter paper. Specifically, the pressing bevel 11 of the paper pressing piece 1 abuts against the filter paper. Because the side walls of the filter cup have different inclination angles, when the inclination angle of the side wall is inconsistent with the angle of the pressing bevel 11, when the paper press is used, the pressing bevel 11 of the paper pressing piece 1 cannot completely press against the filter paper. As a result, the upper or lower end of the pressing bevel 11 abuts against the filter paper. Due to the small pressing area, the filter paper is subjected to a large pressing force, and the corresponding upper or lower end of the filter paper is squeezed and deformed, resulting in a gap between the lower or upper end of the filter paper and the filter cup. When brewing coffee, when boiling water penetrates these areas, the filter paper is easily wrinkled, which affects the speed of coffee extraction. Especially the area near the deformation.

[0045] To address the wrinkle issue, this technical solution combines a paper pressing piece 1 with a telescopic assembly. Multiple paper pressing pieces 1 can be used, arranged in a ring-shaped configuration outside the fixed member 2. The upper end of the paper pressing piece 1 is hinged to the fixed foot, and a pushing structure is provided between the lower end of the paper pressing piece 1 and the movable member 3. The relative position between the movable member 3 and the fixed member 2 is adjusted by the adjustment structure, and the pushing structure rotates the paper pressing piece 1. The adjustment structure and the pushing structure are linked, and the movement of the adjustment structure drives the movement of the pushing structure, thereby adjusting the pressing slope 11 of the paper pressing piece 1 so that the pressing slope 11 completely contacts the filter paper, reducing or preventing deformation of the filter paper due to high pressure.

[0046] See also Figure 2 、 Figure 9 The fixing member 2 includes an upper main body 23 and an upper ring 22 sleeved on the outer side of the upper main body 23. A plurality of upper connecting blocks 21 are connected between the upper ring 22 and the upper main body 23. An upper movable gap is formed between the upper ring 22 and the upper main body 23. Figure 3 The upper end of the paper pressing piece 1 is provided with a connecting hole 16, the outer end of the connecting hole 16 forms a plug-in hole 14 for plugging with the upper ring 22, and the inner end of the connecting hole 16 forms an axial hole 15 that cooperates with the upper ring 22. Preferably, the opening width of the plug-in hole 14 is smaller than the aperture of the axial hole 15.

[0047] During specific use, the paper pressing plate 1 is arranged in a ring shape around the fixing member 2. A horizontally arranged connecting hole 16 is provided on the inner side of the upper end of the paper pressing plate 1. The upper ring 22 is gradually inserted into the shaft hole 15 through the connecting hole 16. Since the connecting hole 16 is located at the upper end of the paper pressing plate 1, the upper part of the paper pressing plate 1 above the connecting hole 16 has a certain elasticity. When in contact with the ring, the upper part of the paper pressing plate 1 above the connecting hole 16 bends upward, thereby increasing the vertical width of the plug-in hole 14. When the upper ring 22 is inserted into the shaft hole 15, the inner side of the upper end of the paper pressing plate 1 enters the upper movable gap. The aperture of the shaft hole 15 is slightly larger than the outer diameter of the upper ring 22, for example, 0.1mm, 0.5mm, 1mm, etc. The upper end of the paper pressing plate 1 can rotate around the upper ring 22. The upper ring 22 can be circular or polygonal.

[0048] Preferably, the movable part 3 includes a lower main body portion 31 and a lower ring 33 sleeved on the outside of the lower main body portion 31, a plurality of lower connecting blocks 32 are connected between the lower ring 33 and the lower main body portion 31, and a lower movable gap is formed between the lower ring 33 and the lower main body portion 31, and an inclined slide groove 12 is provided on the inner side of the lower end of the paper pressing piece 1.

[0049] In a specific configuration, the upper end of the chute 12 can be connected to the outside world. During installation, the chute 12 at the lower end of the paper pressing plate 1 is aligned with the lower collar 33, and the paper pressing plate 1 gradually tilts upward until the lower collar 33 enters the interior of the chute 12. The upper end of the paper pressing plate 1 is then engaged with the upper collar 22, and the upper collar 22 enters the shaft hole 15 portion of the connecting hole 16. During use, when the movable member 3 moves up and down relative to the fixed member 2, the lower collar 33 moves along the chute 12 and pushes the paper pressing plate 1 to rotate.

[0050] Furthermore, the paper pressing piece 1 is provided with a lower engaging hole 13 communicating with the upper end of the sliding groove 12 .

[0051] To prevent the paper pressing plate 1 from separating from the lower collar 33, the chute 12 is separated from the outside world by a distance. In one embodiment of the present technical solution, the lower engaging hole 13 is arranged horizontally, and the upper end of the chute 12 is connected to the lower engaging hole 13. During installation, the lower collar 33 is inserted into the lower engaging hole 13 and passes through the lower engaging hole 13 into the chute 12. This prevents the lower collar 33 from separating from the chute 12. Preferably, the vertical width of the lower engaging hole 13 is smaller than the diameter of the lower collar 33. Since the chute 12 is close to the outside world, the portion of the paper pressing plate 1 adjacent to the chute 12 and located below the lower engaging hole 13 is suspended and has a certain degree of elasticity, which can be deformed to engage the lower collar 33 in the lower engaging hole 13.

[0052] Secondly, in order to facilitate the up and down movement of the lower main body 31 relative to the upper main body 23, the lower main body 31 can be cylindrical, such as cylindrical or polygonal cylindrical; the lower end of the upper main body 23 is provided with a cylindrical concave accommodating hole, a polygonal concave accommodating hole, etc. that matches it; the upper main body 23 can be a tube, etc.

[0053] See also Figures 1 to 12 As the first and second schematic structures of this embodiment: the adjustment structure includes a transmission rod 5 movably connected to the fixed part 2, the transmission rod 5 can rotate relative to the fixed part 2, and the lower end of the transmission rod 5 is provided with an external thread and passes through the fixed part 2 and is threadedly connected to the movable part 3. Figure 5 、 Figure 6 、 Figure 10 、 Figure 11 Preferably, the adjustment structure further comprises a spring 4 for pushing the movable member 3 downward. More preferably, the lower end of the upper body portion 23 is provided with a concave accommodating hole 231 , and the upper end of the movable member 3 is inserted into the concave accommodating hole 231 .

[0054] In order to enable the movable part 3 to adjust the vertical distance relative to the fixed part 2, the present technical solution adopts a threaded structure. The lower end of the transmission rod 5 is provided with an external thread, the fixed part 2 is provided with a through hole, and the upper end of the transmission rod 5 is movably connected to the fixed part 2, so that the transmission rod 5 can rotate relative to the fixed part 2. In the specific implementation, a bearing can be provided on the fixed part 2, and the bearing is sleeved with the transmission rod 5 so that the transmission rod 5 can rotate relative to the fixed part 2. Secondly, the two sides of the fixed part 2 can also be connected with limit members respectively; the transmission rod 5 is restricted by the two limit members and cannot move up and down, but can only rotate. Secondly, in order to prevent the movable part 3 from rotating relative to the movable part 3 due to factors such as vibration, thereby causing the movable part 3 to change its position relative to the fixed part 2, a spring 4 is provided. The two ends of the spring 4 can respectively resist the fixed part 2 and the movable part 3, so that there is a vertical abutment force between the movable part 3 and the transmission rod 5, thereby generating rotational friction and forming friction; thereby preventing arbitrary rotation. Again, in order to prevent the spring 4 from being disturbed by the outside world, in the embodiment of the present technical solution, a concave accommodating hole 231 is provided at the lower end of the fixing member 2 for accommodating the spring 4 and the upper end of the fixing member 2 .

[0055] See also Figure 10 , a limiting groove is provided in the middle of the transmission rod 5, a shaft retaining ring 10 is provided in the concave accommodating hole 231, the shaft retaining ring 10 is sleeved in the limiting groove, and the upper end of the spring 4 is against the shaft retaining ring 10; preferably, the upper end of the transmission rod 5 extends out of the fixing member 2, and more preferably, the upper end of the transmission rod 5 is connected to the operating head 6, see Figure 7 、 Figure 9 .

[0056] To facilitate the rotation of the transmission rod 5 relative to the fixed member 2, this technical solution utilizes a shaft retaining ring 10 that cooperates with a limiting groove. The shaft retaining ring 10 is located at the upper end of the concave accommodating groove and abuts against the spring 4, essentially fixing the position of the shaft retaining ring 10 and restricting the transmission rod 5 from moving up and down; the transmission rod 5 is essentially limited to rotation. Secondly, to facilitate the operation of the transmission rod 5, the upper end of the transmission rod 5 is extended outward and connected to an operating head 6, the side of which may be provided with friction patterns or friction protrusions.

[0057] As examples of the third and fourth structures of this embodiment, see Figures 11 to 17 ; The adjustment structure includes a vertical through-hole arranged in the middle of the upper main body 23, and the upper end of the lower main body 31 has a movable part 311 extending upward, and the movable part 311 passes through the vertical through-hole; preferably, the upper end of the movable part 311 has a screw rod 312 extending upward and is threadedly connected to the operating head 6 through the screw rod 312.

[0058] See also Figure 17The lower main body 31 is sleeved with a friction ring 9 , and the friction ring 9 abuts against the inner wall of the concave accommodating hole 231 .

[0059] The movable part 3 and the fixed part 2 adopt a partially socketed structure. The upper end of the lower main body 31 is socketed with the concave accommodating hole 231 of the upper main body 23, or / and the movable part 311 is socketed with the vertical through-hole. By stretching the movable part 311 upward or pushing the movable part 311 downward, the movable part 3 can be raised or lowered relative to the fixed part 2. During operation, the fixed part 2 is first auxiliary fixed, such as by holding the fixed part 2 with one hand and operating the operating head 6 with the other hand. The movable part 3 is driven to rise and fall relative to the fixed part 2 by pushing and pulling. During operation, in order to obtain an operational feel and prevent the movable part 3 from relative displacement due to external vibrations, the present application provides a friction ring 9 on the outside of the movable part 3. The friction ring 9 can be a rubber ring, a silicone ring, etc., to increase the friction between the movable part 3 and the fixed part 2. Secondly, to facilitate the operation of the movable portion 311, the upper end of the movable portion 311 is extended upward and extends out of the fixing member 2, and is preferably connected to the operating head 6. When connecting with the operating head 6, the movable portion 311 can be directly connected to the operating head 6, with the movable portion 311 having an external thread and the lower end of the operating head 6 having a threaded hole, and the operating head 6 and the movable portion 311 being threadedly connected, or the lower end of the operating portion having an inner concave hole, and the operating portion being interference-fitted or matingly connected to the movable portion 311 through the inner concave hole; or the upper end of the movable portion 311 having a screw 312, and the lower end of the operating head 6 having a threaded hole, and the operating head 6 being threadedly connected to the screw 312. In addition, to increase the operability of the operating head 6, friction patterns, friction protrusions, friction grooves, etc. are provided on the side of the operating head 6.

[0060] See also Figure 14 、 Figure 15 The side wall of the recessed accommodating hole 231 is provided with N groups of positioning holes 232, each group of positioning holes 232 includes at least two vertically distributed positioning holes 232, and the side of the movable part 3 is provided with N mounting holes, and a positioning bead 8 is provided in the mounting hole. A part of the positioning bead 8 protrudes from the mounting hole. When the positioning bead 8 is arranged opposite to the positioning hole 232, a part of the positioning bead 8 extends into the positioning hole 232, and N is 1-3.

[0061] Preferably, the diameter of the positioning hole 232 is smaller than the diameter of the positioning bead 8; more preferably, an elastic member for pushing the positioning bead 8 outward is provided in the mounting hole.

[0062] Currently, the inclination angle of the wall of most filter cups is basically fixed. Therefore, when adjusting the angle of the paper pressing piece 1, it is not necessary to adjust it within a large angle range. It only needs to conform to a few fixed angles, such as 36 degrees and 60 degrees for the cup wall. Therefore, in order to facilitate and quickly adjust the angle of the pressing piece to the required angle, the present application provides 1-3 groups of positioning holes 232 on the side wall of the concave accommodating hole 231 of the fixing member 2. Each group of positioning holes 232 includes 2-3 positioning holes 232, and each positioning hole 232 corresponds to an angle of the paper pressing piece 1, such as one positioning hole 232A corresponds to a 60-degree paper pressing piece 1, and one positioning hole 232B corresponds to a 36-degree paper pressing piece 1. When the movable member 3 is adjusted, when the positioning bead 8 enters the positioning hole 232B, the angle of the pressing inclined surface 11 of the paper pressing piece 1 is 60 degrees; when the positioning bead 8 enters the positioning hole 232A, the angle of the pressing inclined surface 11 of the paper pressing piece 1 is 36 degrees. When the movable member 3 is driven to move relative to the fixed member 2, the protruding surface of the positioning bead 8 is a curved surface. Before entering the positioning hole 232, the positioning bead 8 abuts against the side wall of the concave receiving hole 231, causing a small elastic deformation. The frictional resistance during the movement is relatively large until it faces the positioning hole 232 and enters the positioning hole 232. To reduce frictional resistance, an elastic member is provided in the mounting hole. During the movement, the positioning bead 8 moves into the mounting hole and compresses the elastic member until it enters the next positioning hole 232. The elastic member pushes the positioning bead 8 outward. In a specific implementation, the positioning bead 8 can be connected to a positioning column 7, which is inserted into the mounting hole. The elastic member can be a spring 4, which is provided in the mounting hole.

[0063] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A paper press with an adjustable paper pressing angle, characterized in that: It includes: The telescopic assembly includes a fixed part and a movable part, wherein an adjustment structure capable of adjusting the relative vertical distance between the movable part and the fixed part is provided between the fixed part and the movable part; Multiple paper pressing plates are distributed in a ring shape on the outside of the telescopic component, and the paper pressing plates are provided with a pressing inclined surface; the upper end of the paper pressing plate is hinged to the fixed part, and the paper pressing plate can rotate relative to the fixed part; the middle or lower end of the paper pressing plate is connected to the movable part, and a pushing structure for pushing the paper pressing plate to rotate is provided between the paper pressing plate and the movable part. When the movable part moves relative to the fixed part, the paper pressing plate is pushed by the pushing structure and rotates relative to the fixed part.

2. The paper press with adjustable paper pressing angle according to claim 1, characterized in that: The fixing member includes an upper main body and an upper ring sleeved on the outside of the upper main body, a plurality of upper connecting blocks are connected between the upper ring and the upper main body, an upper movable gap is formed between the upper ring and the upper main body, and a connecting hole is provided at the upper end of the paper pressing piece, an outer end of the connecting hole forms a plugging hole for plugging with the upper ring, and an inner end of the connecting hole forms an axial hole matching with the upper ring.

3. The paper press with adjustable paper pressing angle according to claim 2, characterized in that: The movable part includes a lower main body and a lower ring sleeved on the outer side of the lower main body, a plurality of lower connecting blocks are connected between the lower ring and the lower main body, and a lower movable gap is formed between the lower ring and the lower main body; an inclined slide groove is provided on the inner side of the lower end of the paper pressing piece; the paper pressing piece is provided with a lower clamping hole connected to the upper end of the slide groove.

4. The paper press with adjustable paper pressing angle according to claim 2, characterized in that: The adjustment structure includes a transmission rod movably connected to the fixing member, the transmission rod can rotate relative to the fixing member, and the lower end of the transmission rod is provided with an external thread and passes through the fixing member to be threadedly connected to the movable member.

5. The paper press with adjustable paper pressing angle according to claim 4, characterized in that: The lower end of the upper main body is provided with a concave accommodating hole, and the upper end of the movable member is inserted into the concave accommodating hole.

6. The paper press with adjustable paper pressing angle according to claim 5, characterized in that: A limiting groove is provided in the middle of the transmission rod, and a shaft retaining ring is provided in the concave accommodating hole, which is sleeved in the limiting groove. The adjustment structure also includes a spring for pushing the movable part downward, and the upper end of the spring is against the shaft retaining ring; the upper end of the transmission rod extends out of the fixing part, and the upper end of the transmission rod is connected to the operating head.

7. The paper press with adjustable paper pressing angle according to claim 3, characterized in that: The adjustment structure includes a vertical through hole arranged in the middle of the upper main body part, and a movable part extends upward from the upper end of the lower main body part, and the movable part passes through the vertical through hole.

8. The paper press with adjustable paper pressing angle according to claim 7, characterized in that: A screw rod is extended upward from the upper end of the movable part and is threadedly connected with an operating head through the screw rod.

9. The paper press with adjustable paper pressing angle according to claim 8, characterized in that: The lower main body is sleeved with a friction ring, which abuts against the inner side wall of the concave accommodating hole.

10. The paper press with adjustable paper pressing angle according to claim 5, characterized in that: The side wall of the concave accommodating hole is provided with N groups of positioning holes, each group of positioning holes includes at least 2 vertically distributed positioning holes, the side of the movable part is provided with N mounting holes, and positioning beads are provided in the mounting holes. A part of the positioning beads protrudes from the mounting holes. When the positioning beads are arranged relative to the positioning holes, a part of the positioning beads extends into the positioning holes, and N is 1-3.

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