A plastic spiral chute

Abstract

The utility model relates to the field of mineral processing equipment, especially a kind of plastic spiral chute, including fixed rod, multiple along the groove section of spiral path sequentially installed in fixed rod, adjacent groove section is connected, it is characterized in that, groove section includes the groove board of supporting ore, the baffle of setting in the outer edge of groove board;The upper end of groove section is equipped with the recessed installation step, the upper end of groove board is spaced apart and is equipped with multiple insertion slot in its radial direction along installation step, the lower end of groove board is spaced apart and is equipped with multiple insertion post in its radial direction, the bottom wall of insertion slot is equipped with clamping post, the bottom of insertion post is equipped with insertion cavity;Adjacent groove section is connected, the lower edge of the groove section located in upside is overlapped in the installation step of the groove section located in downside, each insertion post is respectively inserted in one insertion slot, and after clamping post is inserted into insertion cavity, insertion post is deformed and is clamped in insertion slot. The utility model optimizes the connecting mode between groove sections, effectively solves the problems in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of mineral processing equipment, and in particular to a plastic spiral chute. Background Technology

[0002] A spiral sluice is a mineral processing device that uses gravity and centrifugal force for the initial separation of mineral particles, and it is widely used. During operation, the minerals are fed into the spiral sluice from the top, and the separated ore is discharged from the bottom.

[0003] Traditional spiral chutes are made of fiberglass and are integrally connected, but this method is cumbersome and inconvenient to install. Therefore, in recent years, the application of high-wear-resistant plastic spiral chutes has gradually increased. Plastic spiral chutes have better machinability, so in some embodiments, modular processing is used to produce chute sections, which are then assembled on-site. For example, a spiral chute structure and spiral chutes disclosed in patent publication number CN216322570U are connected by a connecting groove and a snap-fit ​​part. The snap-fit ​​part includes a fixing strip and a positioning cylinder. The fixing strip is snapped into the snap-fit ​​groove, and the positioning cylinder is snapped into the positioning groove.

[0004] Currently, the common snap-fit ​​structure for this type of plastic spiral chute mostly uses an interference fit, relying on the weight of the upper segment to maintain a close fit with the lower segment. In practical use, this assembly method for plastic spiral chutes has poor stability. Stress changes between segments due to material aging, temperature variations, etc., can cause some interference fits to retract, leading to misalignment between adjacent segments. Therefore, achieving a stable connection between adjacent segments is an urgent problem to be solved. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a plastic spiral chute, which effectively solves the problems existing in the prior art by optimizing the connection method between the chute sections.

[0006] To address the aforementioned problems, this utility model provides a plastic spiral chute, comprising a fixed rod and multiple chute segments sequentially installed along a spiral path on the fixed rod, with adjacent chute segments connected. The chute segment includes a trough plate supporting ore and a baffle plate disposed on the outer edge of the trough plate. The upper end of each chute segment has a recessed mounting step. The upper end of the trough plate has multiple slots spaced radially along the mounting step. The lower end of the trough plate has multiple inserts spaced radially along its lower end. The bottom wall of each slot has a locking post, and the bottom of each insert has a cavity. When adjacent chute segments are connected, the lower edge of the upper chute segment overlaps the mounting step of the lower chute segment. Each insert is inserted into a corresponding slot, and the locking post, after interference fit into the cavity, deforms and engages with the slot.

[0007] Furthermore, the outer surface of the insertion post is provided with a protruding snap-fit ​​portion, and the inner surface of the slot is provided with a snap-fit ​​recess for the snap-fit ​​portion to snap into.

[0008] Furthermore, the snap-fit ​​portion is configured as an arc-shaped snap-fit ​​portion.

[0009] Furthermore, the insertion post is provided with multiple deformation joints at intervals in the cavity wall of the insertion cavity.

[0010] Furthermore, the expansion joint extends through the outer surface of the insert post; Alternatively, the expansion joint may be provided on the inner surface of the cavity wall of the insertion cavity.

[0011] Furthermore, the locking pin is integrally formed and connected to the groove wall of the slot.

[0012] Furthermore, a block is integrally connected to the bottom of the locking pin, and the block is threadedly screwed into the bottom of the slot.

[0013] Furthermore, the mounting step is recessed at the position corresponding to each of the slots to form a structural groove, and the structural groove penetrates the groove wall at the groove opening position of each of the slots; The grooved section is provided with reinforcing ribs at the insertion post positions. The reinforcing ribs connect each insertion post handle and extend to the upper edge of the baffle, and the width of the reinforcing ribs is smaller than the width of the structural groove.

[0014] Furthermore, the insert engages with the slot in the portion of the structural groove.

[0015] Furthermore, the baffle has a slot on the mounting step, the slot extends upward through the baffle, and the two side walls of the slot gradually slope inward from the inside to the outside. The baffle has a protruding block at the lower edge of the slot section. When two slot sections are connected, the block of the upper slot section can be inserted into the slot of the lower slot section.

[0016] The beneficial effect of this utility model is that by optimizing the connection method between the slotted sections, it effectively solves the problems existing in the prior art. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of adjacent slotted sections assembled behind a fixing rod according to an embodiment of the present invention.

[0018] Figure 2 for Figure 1 The illustrated embodiment is a schematic diagram of the segmented structure.

[0019] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0020] Figure 4 for Figure 2 A magnified schematic diagram of the structure at point B in the middle.

[0021] Figure 5 for Figure 1 The diagram shows a partial cross-sectional view of the insertion post location in the embodiment shown.

[0022] Figure 6 for Figure 1 A schematic diagram of the cross-sectional structure of the insert in the embodiment shown.

[0023] Among them: 1. Slotted section; 101. Slot plate; 102. Baffle; 103. Installation step; 2. Slot; 3. Insert post; 4. Locking post; 5. Insertion cavity; 6. Locking part; 7. Locking recess; 8. Expansion joint; 9. Block; 10. Structural groove; 11. Reinforcing rib; 12. Locking groove; 13. Locking block. Detailed Implementation

[0024] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0025] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0026] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected by an intermediate structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0028] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] In this utility model, such as Figure 1-6As shown, a plastic spiral chute is provided, including a fixed rod and multiple trough sections 1 sequentially installed along a spiral path on the fixed rod. Adjacent trough sections 1 are connected. Each trough section 1 includes a trough plate 101 for supporting ore and a baffle 102 disposed on the outer edge of the trough plate 101. The upper end of each trough section 1 is provided with a recessed mounting step 103. The upper end of the trough plate 101 is provided with multiple slots 2 at radial intervals along the mounting step 103. The lower end of the trough plate 101 is provided with multiple inserts 3 at radial intervals. The bottom wall of each slot 2 is provided with a locking post 4, and the bottom of each insert 3 is provided with a cavity 5. When adjacent trough sections 1 are connected, the lower edge of the upper trough section 1 overlaps the mounting step 103 of the lower trough section 1. Each insert 3 is respectively inserted into one of the slots 2, and the locking post 4 is inserted into the cavity 5 with an interference fit, causing the insert 3 to deform and lock into the slot 2.

[0030] During assembly, the lower edge of the upper groove section 1 overlaps with the mounting step 103 of the lower groove section 1, allowing the insert 3 to be inserted into the slot 2. As the insert 3 is inserted into the slot 2, the retaining post gradually enters the insertion cavity 5. During this process, the insert 3 has not yet deformed, allowing for smooth insertion. After the insert 3 is positioned within the slot 2, the retaining post is inserted into the insertion cavity 5 with an interference fit, causing the insert 3 to deform and engage in the slot 2, thus ensuring stable insertion of the insert 3 within the slot 2.

[0031] The plastic spiral chute of this invention can use the interference fit of the locking post socket to keep the insertion post 3 inelastic deformation in the insertion cavity 5, so that the insertion post 3 can be stably locked in the slot 2, and the lower edge of the upper slot section 1 can be stably overlapped on the installation step 103, so as to prevent the deformation and misalignment of the two adjacent slot sections 1 from occurring.

[0032] Moreover, in the initial stage of inserting the insert 3 into the slot 2, before the locking pin has interfered with the insert 3 to the point of deformation, the insert 3 can be inserted into the slot 2 more easily, reducing the difficulty of assembly.

[0033] Therefore, compared to the method of directly inserting the plug 3 into the slot 2 with an interference fit, this invention reduces the difficulty of inserting the plug 3. Moreover, since this invention uses a plug-supported interference fit method for the plug 3, it allows the plug 3 to undergo greater inelastic deformation. Because plastic spiral chute is mostly made of hard plastic with high wear resistance, the deformation margin when the plug 3 is directly interference fit into the slot 2 is small, and it is easy to loosen due to aging or temperature changes. This invention can solve this problem.

[0034] In a preferred embodiment, more specifically regarding the structure of this utility model, the outer surface of the insert 3 is provided with a protruding snap-fit ​​portion 6, and the inner surface of the slot 2 is provided with a snap-fit ​​recess 7 for the snap-fit ​​portion 6 to be snapped into.

[0035] This allows the insert 3 to be inserted into the slot 2 more smoothly before the snap-fit ​​part 6 has moved to the snap-fit ​​recess 7 position.

[0036] In an alternative embodiment, a snap-fit ​​recess 7 may be provided on the outer surface of the insert 3, and a protruding snap-fit ​​portion 6 may be provided on the inner surface of the slot 2.

[0037] In a preferred embodiment, more specifically, regarding the structure of this utility model, the snap-fit ​​portion 6 is configured as an arc-shaped snap-fit ​​portion 6.

[0038] In a preferred embodiment, specifically regarding the structure of this invention, the insertion post 3 is provided with multiple deformation slots 8 at intervals on the cavity wall of the insertion cavity 5. This increases the deformation capacity of the insertion post 3 at the insertion cavity 5, so that after the locking post is inserted into the insertion cavity 5, the insertion post 3 can quickly deform outward to drive the locking part 6 to lock into the locking recess 7.

[0039] In the illustrated embodiment, specifically regarding the structure of this invention, the expansion joint 8 is disposed on the inner surface of the cavity wall of the insertion cavity 5. As shown, the expansion joint 8 is non-through, which allows the outer surface of the insertion post 3 to be regular, making it easier to insert the insertion post 3 into the slot 2.

[0040] Alternatively, in an alternative embodiment, the expansion joint 8 may be configured to penetrate the outer surface of the insert 3.

[0041] In a preferred embodiment, more specifically regarding the structure of this utility model, the locking post 4 is integrally formed and connected to the groove wall of the slot 2.

[0042] Alternatively, in an alternative embodiment, for the structure of this utility model, more specifically, the bottom of the locking post 4 is integrally connected to a block 9, and the block 9 is threadedly engaged with the bottom of the slot 2.

[0043] By configuring the locking pin and slot 2 as separate components, the slot 2 and locking pin can be processed separately, facilitating the forming of the slot 2 portion. Furthermore, in some embodiments where it is necessary to separate two adjacent slot segments 1, the block 9 can be removed from the bottom of the slot 2 to remove the locking pin and separate the locking pin 3 from the slot 2.

[0044] In a preferred embodiment, more specifically regarding the structure of this utility model, the mounting step 103 is recessed at the position corresponding to each of the slots 2 to form a structural groove 10, the structural groove 10 penetrating the groove wall at the groove opening position of each of the slots; the slotted section 1 is provided with a reinforcing rib 11 at the position of the insert 3, the reinforcing rib connects to the handle of each insert 3 and extends to the upper edge of the baffle 102, and the width of the reinforcing rib 11 is less than the width of the structural groove 10.

[0045] As shown in the figure, by setting a recessed structural groove 10, the upper end of the slot 2 is divided into two parts, which can increase the deformation capacity of the top of the slot 2 along the circumference of the spiral chute, so as to facilitate the insertion of the insert 3 into the slot 2. Moreover, the structural groove 10 can also increase the bending resistance of the mounting step 103 in the radial direction by utilizing the groove wall recess, so as to further prevent the relative deformation and misalignment of the two adjacent slot sections 1 caused by the radial deformation of the mounting step 103.

[0046] Furthermore, the reinforcing ribs 11 increase the radial resistance of the grooved sections 1 at each insertion post 3 position within the spiral chute, further preventing deformation of adjacent grooved sections 1 caused by deformation at the overlapping part of the mounting step 103. Moreover, the width of the reinforcing ribs 11 is smaller than the width of the structural groove 10, facilitating insertion of the reinforcing ribs 11 into the structural groove 10 for easier installation.

[0047] In a preferred embodiment, more specifically regarding the structure of this utility model, the insert 3 is engaged with the slot 2 in the portion of the structural groove 10.

[0048] As shown in the figure, the deformation capability of the slot wall of slot 2 after being separated on both sides of the structural slot 10 can be utilized to adapt to the snap-fit ​​movement of the plug 3 and slot 2.

[0049] In a preferred embodiment, more specifically regarding the structure of this utility model, the baffle 102 is provided with a slot 12 on the mounting step 103, the slot 12 extends upward through the baffle 102, and the two side walls of the slot 12 gradually slope inward from the inside to the outside. The baffle 102 is provided with a protruding block 13 at the lower edge of the slotted section 1. When two slotted sections 1 are connected, the block 13 of the upper slotted section 1 can be inserted into the slot 12 of the lower slotted section 1.

[0050] As shown in the figure, the card block 13 is set up so that after the card block 13 is inserted into the card slot 12, the side wall of the card block 13 is constrained by the two side walls of the card slot 12 to keep the two adjacent slot segments 1 in contact and constrained at the position of the baffle 102, so as to prevent the two adjacent slot segments 1 from deforming and separating at the position of the baffle 102.

[0051] It should be noted that, in order to better illustrate the structure, the accompanying drawings of this utility model are provided with additional details. Figure 1 Only the fixing rod and two slot sections were drawn; the other slot sections were not drawn. Figure 5 The cross-section shown in the image, depicting the insertion slot of the insert post, is a cross-section along the tangential direction of the spiral chute circumference. Figure 6 This is merely an example to illustrate the use of insert columns to create non-through expansion joints.

[0052] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on its differences from other embodiments. In particular, the system embodiments are relatively simple in description because they are fundamentally similar to the method embodiments; relevant parts can be referred to the descriptions in the method embodiments.

[0053] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A plastic spiral chute, comprising a fixed rod and a plurality of chute sections sequentially installed along a spiral path on the fixed rod, with adjacent chute sections connected together, characterized in that, The trough section includes a trough plate for supporting the ore and a baffle plate disposed on the outer edge of the trough plate; The upper end of the grooved section is provided with a recessed mounting step, and the upper end of the grooved plate is provided with a plurality of slots spaced radially along the mounting step. The lower end of the grooved plate is provided with a plurality of inserts spaced radially. The bottom wall of the slot is provided with a locking post, and the bottom of the insert is provided with an insertion cavity. When adjacent slot sections are connected, the lower edge of the upper slot section overlaps the mounting step of the lower slot section, each of the inserts is inserted into a slot, and the locking post is inserted into the cavity with an interference fit, causing the insert to deform and lock into the slot.

2. The plastic spiral chute according to claim 1, characterized in that, The outer surface of the insertion post is provided with a protruding snap-fit ​​portion, and the inner surface of the slot is provided with a snap-fit ​​recess for the snap-fit ​​portion to snap into.

3. The plastic spiral chute according to claim 2, characterized in that, The snap-fit ​​part is configured as an arc-shaped snap-fit ​​part.

4. The plastic spiral chute according to any one of claims 1 to 3, characterized in that, The insertion post has multiple deformation joints spaced apart on the cavity wall of the insertion cavity.

5. The plastic spiral chute according to claim 4, characterized in that, The expansion joint penetrates the outer surface of the insert post; Alternatively, the expansion joint may be provided on the inner surface of the cavity wall of the insertion cavity.

6. The plastic spiral chute according to claim 1, characterized in that, The locking pin is integrally formed and connected to the groove wall of the slot.

7. The plastic spiral chute according to claim 1, characterized in that, The bottom of the locking pin is integrally connected to a block, which is threaded into the bottom of the slot.

8. The plastic spiral chute according to claim 1, characterized in that, The mounting step is recessed at the position corresponding to each of the slots to form a structural groove, and the structural groove penetrates the groove wall at the groove opening position of each of the slots; The grooved section is provided with reinforcing ribs at the insertion post positions. The reinforcing ribs connect each insertion post handle and extend to the upper edge of the baffle, and the width of the reinforcing ribs is smaller than the width of the structural groove.

9. The plastic spiral chute according to claim 8, characterized in that, The insert engages with the slot in the portion of the structure groove.

10. The plastic spiral chute according to claim 8, characterized in that, The baffle has a slot on the installation step, the slot extends upward through the baffle, and the two side walls of the slot gradually slope inward from the inside to the outside. The baffle has a protruding block at the lower edge of the slot section. When two slot sections are connected, the block of the upper slot section can be inserted into the slot of the lower slot section.

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