Slope positioning mechanism of filter paper hollow shaft

Abstract

The utility model relates to the technical field of filter paper hollow shafts, in particular to an inclined plane positioning mechanism of a filter paper hollow shaft, which comprises a bolt, the bolt is slidably arranged inside the hollow shaft, a spring piece is arranged on the outer side of one end of the bolt, a reset spring is mounted at the end of the bolt, and an outer baffle is mounted at one end of the hollow shaft. The other end of the hollow shaft is provided with an inner baffle, the spring piece comprises a bevel piece, the end of the bevel piece is provided with a narrowing pipe, the bolt comprises a cylindrical section and a circular truncated cone section, the cylindrical section is in sliding fit with the inner wall of the hollow shaft, and the circular truncated cone section is matched with the inner wall of the spring piece. According to the inclined plane positioning mechanism of the filter paper hollow shaft, high-precision and stable positioning of the filter paper hollow shaft is achieved through ingenious structural design. The bolt is in sliding fit with the inner wall of the hollow shaft, and the spring piece and the reset spring are arranged, so that when the positioning mechanism is vibrated or impacted by external force, the positioning stability can be effectively kept, and the defect that a traditional positioning mechanism is prone to loosening is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of filter paper hollow shafts, and specifically, to an inclined plane positioning mechanism for a filter paper hollow shaft. Background Art

[0002] During the production and use of filter paper, the filter paper hollow shaft, as a key component, its positioning accuracy and stability have an important impact on the performance and service life of the filter paper.

[0003] Traditional positioning mechanisms for filter paper hollow shafts usually adopt simple mechanical structures, such as directly fixing through fasteners such as bolts and nuts. Although this method has a simple structure, in actual use, due to factors such as vibration and external force impact, it is easy to cause positioning loosening, thereby affecting the normal use of the filter paper and the filtering effect. Especially in occasions where frequent disassembly and installation are required, the stability and reliability of the traditional positioning mechanism are even more insufficient.

[0004] Therefore, developing a positioning mechanism for a filter paper hollow shaft with higher positioning accuracy and stability has become an urgent need in the current filter paper technology field. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an inclined plane positioning mechanism for a filter paper hollow shaft to solve the problem that traditional positioning mechanisms for filter paper hollow shafts usually adopt simple mechanical structures, such as directly fixing through fasteners such as bolts and nuts. Although this method has a simple structure, in actual use, due to factors such as vibration and external force impact, it is easy to cause positioning loosening, thereby affecting the normal use of the filter paper and the filtering effect.

[0006] To achieve the above purpose, the utility model provides an inclined plane positioning mechanism for a filter paper hollow shaft, including a plug pin. The plug pin is slidably arranged inside the hollow shaft. A spring piece is arranged on the outer side of one end of the plug pin, and a return spring is installed at the end of the plug pin. An outer baffle is installed at one end of the hollow shaft, and an inner baffle is installed at the other end of the hollow shaft. The spring piece includes an inclined plane piece, and a narrowing tube is installed at the end of the inclined plane piece. The plug pin includes a cylindrical section and a frustum section. The cylindrical section is slidably matched with the inner wall of the hollow shaft, and the frustum section is matched with the inner wall of the spring piece.

[0007] Preferably, the number of the spring pieces is two, and they are symmetrically arranged up and down.

[0008] Preferably, an outer plug is installed in the middle of the inner side of the outer baffle, and the outer plug is inserted and matched with the hollow shaft.

[0009] Preferably, a handle is installed on the outer side of the outer baffle.

[0010] Preferably, an inner plug is installed in the middle of the inner side of the inner baffle, and the inner plug is inserted and matched with the hollow shaft.

[0011] Preferably, a sleeve is installed on the outer side of the inner plug, and a return spring is arranged inside the sleeve.

[0012] Preferably, an anti-slip surface is arranged on the outer wall of the inclined surface piece.

[0013] Preferably, when one end of the bolt is located at the port of the sleeve, it is in abutting fit with the return spring, and the return spring is in a compressed state.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] In the inclined surface positioning mechanism of the filter paper hollow shaft, through a clever structural design, high-precision and stable positioning of the filter paper hollow shaft is achieved. The sliding fit between the bolt and the inner wall of the hollow shaft, as well as the setting of the spring piece and the return spring, enable the positioning mechanism to effectively maintain the stability of positioning when subjected to vibration or external force impact, avoiding the disadvantage of easy loosening of the traditional positioning mechanism. At the same time, the symmetrical arrangement of the spring pieces up and down and the design of the inclined surface piece further improve the positioning accuracy and stability. In addition, the setting of the outer baffle and the inner baffle, as well as their connection with the hollow shaft, make the positioning mechanism convenient for disassembly and installation, meeting the actual needs in the process of filter paper production and use.

[0016] In summary, the inclined surface positioning mechanism of the filter paper hollow shaft of the present utility model has the advantages of high positioning accuracy, good stability, convenient disassembly and installation, etc., and can effectively improve the performance and service life of the filter paper, which is an important innovation in the field of filter paper technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of the present utility model;

[0018] Figure 2 is the structural schematic diagram of the bolt in the present utility model;

[0019] Figure 3 is the structural schematic diagram of the spring piece in the present utility model;

[0020] The meanings of the various reference numerals in the figure are as follows:

[0021] 1. Hollow shaft; 2. Bolt; 21. Cylindrical section; 22. Frustum section; 3. Spring piece; 31. Inclined surface piece; 311. Anti-slip surface; 32. Narrowing pipe; 4. Sleeve; 5. Return spring; 6. Outer baffle; 61. Outer plug; 7. Inner baffle; 71. Inner plug; 8. Handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0023] The utility model provides an inclined surface positioning mechanism for a hollow filter paper shaft, such as Figures 1 - 3 As shown, it includes a latch 2, which is slidably arranged inside a hollow shaft 1, a spring sheet 3 is arranged outside one end of the latch 2, a reset spring 5 is installed at the end of the latch 2, an outer baffle 6 is installed at one end of the hollow shaft 1, and an inner baffle 7 is installed at the other end of the hollow shaft 1. The spring sheet 3 includes a bevel sheet 31, and a narrowing tube 32 is installed at the end of the bevel sheet 31. The latch 2 includes a cylindrical section 21 and a truncated cone section 22. The cylindrical section 21 is slidably matched with the inner wall of the hollow shaft 1, and the truncated cone section 22 is matched with the inner wall of the spring sheet 3. Through the carefully designed structural components, a significant technical effect is achieved. Specifically, the latch 2 is slidably arranged inside the hollow shaft 1, and a spring sheet 3 is cleverly configured on the outer side of one end of the latch, and a reset spring 5 is installed at the end of the latch. Such a design not only ensures the flexible movement of the latch 2 in the hollow shaft 1, but also provides a stable positioning and reset force for the latch through the elasticity of the spring sheet 3 and the elastic force of the reset spring 5.

[0024] In particular, the design of the inclined surface 31 in the spring sheet 3 closely matches the truncated cone section 22 of the latch 2, which not only enhances the structural stability of the positioning mechanism, but also enables the latch to move and reset more smoothly when subjected to force through the guiding effect of the inclined surface. At the same time, the setting of the narrowing tube 32 further limits the deformation range of the spring sheet 3 and improves the positioning accuracy.

[0025] In this embodiment, there are two spring sheets 3, which are symmetrically arranged in an upper and lower direction. This design enhances the stability and balance of the positioning mechanism, and the two spring sheets can jointly withstand external forces, reducing deformation or looseness caused by single-point force, thereby improving the reliability and service life of the filter paper hollow shaft positioning mechanism.

[0026] Specifically, an outer plug 61 is installed in the middle of the inner side of the outer baffle 6, and the outer plug 61 is plugged and matched with the hollow shaft 1. This connection mode is convenient for the installation and removal of the outer baffle 6.

[0027] Furthermore, a handle 8 is installed on the outer side of the outer baffle 6. The design of the handle 8 makes it more convenient for the user to operate the outer baffle 6, and can be easily installed, removed or adjusted without additional tools, thereby improving work efficiency and user experience.

[0028] Further, an inner plug 71 is installed in the middle of the inner side of the inner baffle 7, and the inner plug 71 is inserted and matched with the hollow shaft 1. This design also enhances the connection strength between the inner baffle 7 and the hollow shaft 1, ensuring the overall stability and reliability of the positioning mechanism.

[0029] Further, a sleeve 4 is installed on the outer side of the inner plug 71, and a return spring 5 is arranged inside the sleeve 4. The sleeve 4 not only provides stable support for the return spring 5, but also restricts the deformation direction of the return spring 5 through its internal space, enabling the return spring 5 to transmit force more evenly when stressed, improving the return effect and positioning accuracy.

[0030] Further, an anti-slip surface 311 is provided on the outer wall of the inclined surface piece 31. The design of the anti-slip surface 311 increases the friction between the inclined surface piece 31 and the plug 2.

[0031] Further, when one end of the plug 2 is located at the port of the sleeve 4, it is in abutting cooperation with the return spring 5, and the return spring 5 is in a compressed state. This design enables the plug 2 to retract when the outer baffle 6 is loosened, causing the spring piece 3 to release the locking of the inner wall of the hollow shaft 1.

[0032] When the inclined surface positioning mechanism of the filter paper hollow shaft of the present utility model is in use, first, the plug 2 is slidably arranged inside the hollow shaft 1, and its cylindrical section 21 is slidably matched with the inner wall of the hollow shaft 1, ensuring the flexible movement of the plug inside the hollow shaft. A spring piece 3 is arranged on the outer side of one end of the plug 2, and the inclined surface piece 31 in the spring piece 3 is closely matched with the frustum section 22 of the plug 2. When an external force acts on the plug 2, the inclined surface design of the inclined surface piece 31 will guide the plug to move smoothly and absorb part of the force through its elastic deformation. At the same time, the narrowing tube 32 restricts the deformation range of the spring piece 3, improving the positioning accuracy.

[0033] At the end of the plug 2, a return spring 5 is installed. When the external force disappears, the elastic force of the return spring 5 will push the plug 2 back to its original position to achieve automatic reset. At the same time, the spring piece 3 will also return to its original state due to its own elasticity, further enhancing the stability of the positioning mechanism.

[0034] In addition, an outer baffle 6 and an inner baffle 7 are respectively installed at both ends of the hollow shaft 1. The outer baffle 6 is connected to the hollow shaft 1 through an outer plug 61, and the inner baffle 7 is connected to the hollow shaft 1 through an inner plug 71. This connection method facilitates the installation and disassembly of the baffle.

[0035] On the outer side of the outer baffle 6, a handle 8 is installed to facilitate the user to operate the outer baffle 6. When it is necessary to adjust or disassemble the positioning mechanism, the user can easily complete it through the handle 8.

[0036] Outside the inner plug 71, a sleeve 4 is installed, and a return spring 5 is arranged inside the sleeve 4. The sleeve 4 provides stable support for the return spring 5 and restricts the deformation direction of the return spring 5, enabling the return spring 5 to transmit force more evenly when stressed, improving the return effect and positioning accuracy.

[0037] An anti-slip surface 311 is provided on the outer wall of the inclined surface piece 31, increasing the friction between the inclined surface piece 31 and the plug 2, preventing the plug from accidentally coming out or sliding due to external force during the sliding process.

[0038] When an external force acts on the outer baffle 6 and the outer baffle 6 is pushed inward by the handle 8, it will drive the plug 2 to move inward into the hollow shaft 1 and compress the return spring 5. At this time, the spring piece 3 will undergo elastic deformation due to the movement of the plug 2, and the inclined surface design of the inclined surface piece 31 will guide the smooth movement of the plug 2. When the external force disappears, the elastic force of the return spring 5 will push the plug 2 to move outward and return to the original position through the elastic deformation of the spring piece 3, realizing automatic reset and locking.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An inclined plane positioning mechanism for a filter paper hollow shaft, comprising a plug pin (2), characterized in that: The bolt (2) is slidably arranged inside the hollow shaft (1). A spring piece (3) is arranged on the outer side of one end of the bolt (2). A return spring (5) is installed at the end of the bolt (2). An outer baffle (6) is installed at one end of the hollow shaft (1). An inner baffle (7) is installed at the other end of the hollow shaft (1). The spring piece (3) includes an inclined plane piece (31). A narrowing tube (32) is installed at the end of the inclined plane piece (31). The bolt (2) includes a cylindrical section (21) and a frustum section (22). The cylindrical section (21) is in sliding fit with the inner wall of the hollow shaft (1). The frustum section (22) is in fit with the inner wall of the spring piece (3).

2. The inclined plane positioning mechanism of the filter paper hollow shaft according to claim 1, wherein: The number of the spring pieces (3) is two, and they are symmetrically arranged up and down.

3. The inclined plane positioning mechanism of the filter paper hollow shaft according to claim 1, wherein: An outer plug (61) is installed in the middle of the inner side of the outer baffle (6). The outer plug (61) is in plug-in fit with the hollow shaft (1).

4. The inclined plane positioning mechanism of the filter paper hollow shaft according to claim 3, characterized in that: A handle (8) is installed on the outer side of the outer baffle (6).

5. The inclined plane positioning mechanism of the filter paper hollow shaft according to claim 1, characterized in that: An inner plug (71) is installed in the middle of the inner side of the inner baffle (7). The inner plug (71) is in plug-in fit with the hollow shaft (1).

6. The inclined plane positioning mechanism of the filter paper hollow shaft according to claim 5, characterized in that: A sleeve (4) is installed on the outer side of the inner plug (71). A return spring (5) is arranged inside the sleeve (4).

7. The inclined surface positioning mechanism of the filter paper hollow shaft according to claim 1, characterized in that: An anti-slip surface (311) is arranged on the outer wall of the inclined plane piece (31).

8. The inclined plane positioning mechanism of the filter paper hollow shaft according to claim 6, wherein: When one end of the bolt (2) is located at the port of the sleeve (4), it is in abutting fit with the return spring (5), and the return spring (5) is in a compressed state.

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