Engine air inlet pipe mold
By introducing a combination structure of buckle plate and locking nut into the engine intake manifold mold, the problem of inconvenient matching between the die and punch is solved, achieving a convenient and reliable connection and improving the practicality of the mold.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING TENGSHAN ELECTROMECHANICAL CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-05
AI Technical Summary
The existing engine intake manifold mold has a complicated and inconvenient die-punch fit, making it difficult to operate and not very reliable, thus lacking practicality.
The combination structure of buckle plate and locking nut, through the design of buckle groove and U-shaped groove, enables convenient and reliable connection between the die and punch. The positioning angle plate and lifting ring improve the alignment and lifting convenience, and the anti-loosening gasket prevents loosening.
It achieves a convenient and reliable fit between the die and the punch, improving the practicality and operational efficiency of the mold.
Smart Images

Figure CN224197225U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of engine intake manifold molds, and in particular to engine intake manifold molds. Background Technology
[0002] The engine intake manifold is used to guide airflow into the engine. It is generally injection molded using a tube forming cavity formed in a mold. Engine intake manifold molds are used when processing engine intake manifolds.
[0003] Existing engine intake pipe molds, such as the utility model patent disclosed in CN214687723U, disclose a molding mold for processing engine intake pipes. This mold includes a mold body with a pipe forming cavity for processing the engine intake pipe body and a threaded hole forming cavity for processing threaded hole channels. The threaded hole forming cavity and the pipe forming cavity cooperate to integrally mold an engine intake pipe with threaded holes. By providing a threaded hole forming cavity within the mold body that cooperates with the pipe forming cavity, the intake pipe mold allows for integral molding of the threaded holes using injection molding, eliminating the need for additional threaded hole processing and significantly improving the processing efficiency and quality of the engine intake pipe.
[0004] The engine intake manifold mold in the aforementioned patented technology has the following drawbacks when in use: the die and the punch are fitted together by a pre-clamping positioning component, but the pre-clamping positioning component has a relatively complicated structure, is not convenient to operate, and has a spring component, which makes it difficult for the die and the punch to fit together, and the fit between the die and the punch is not reliable, resulting in insufficient practicality. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides an engine intake pipe mold that makes it easier and more reliable to match the die and punch, thereby improving its practicality.
[0006] Technical solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: an engine intake manifold mold, including a concave mold, with a convex mold fitted to the top of the concave mold. Fitting components are provided between the left and right sides of the concave mold and the convex mold. Each fitting component includes a lower connecting seat, an upper connecting seat, and a snap plate. The lower and upper connecting seats are respectively fixedly connected to one side of the concave mold and the convex mold. Rotating shafts are fixedly provided at both ends of the snap plate. The snap plate is rotatably mounted on the lower connecting seat via the rotating shafts, with the inner end of the snap plate aligned with the inner side of the lower connecting seat. A snap groove is provided at the upper part of the inner side of the snap plate, and the snap plate is snapped onto the upper connecting seat through the snap groove. The lower edge of the snap groove is lower than the bottom end of the upper connecting seat, and the upper edge of the snap groove is aligned with the top end of the upper connecting seat. A U-shaped slot is provided at the top of the snap plate. A threaded post is fixedly connected to the top end of the upper connecting seat, and the threaded post is inserted into the U-shaped slot. A locking nut is screwed onto the threaded post, and the locking nut is pressed against the top end of the snap plate.
[0008] Preferably, the outer diagonal of the concave mold is fixedly connected with two sets of positioning corner plates.
[0009] Preferably, each of the four corners of the top of the punch is provided with a screw hole, and a lifting ring is screwed into each screw hole.
[0010] Preferably, both sets of locking nuts are fixedly connected to anti-loosening washers at their bottom ends.
[0011] Preferably, the upper edge of the inner sidewall of both sets of positioning corner plates is chamfered.
[0012] Preferably, the outer edges of both sets of U-shaped slots are rounded.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, the punch is fastened onto the die to align the punch and die. Then, the fastening plate is rotated to a vertical position so that it is fastened onto the upper connecting seat through the fastening groove. This allows the threaded post to be inserted into the U-shaped slot. Next, the locking nut is tightened so that it presses against the top of the fastening plate, thereby making the die and punch fit together. During the fit, the fastening plate is flipped over to fasten onto the upper connecting seat, and then tightened by the locking nut to complete the fit. This makes it easier and more reliable for the die and punch to fit together, thus improving practicality. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the left axonometric structure of this utility model;
[0016] Figure 3 This is an isometric structural diagram of the mating components in this utility model;
[0017] Figure 4This is an exploded isometric structural diagram of the mating components in this utility model;
[0018] Figure 5 This is a schematic diagram of the left axonometric structure of the buckle plate in this utility model;
[0019] Figure 6 This is an isometric structural diagram of the positioning angle plate in this utility model;
[0020] The following markings are used in the attached diagram: 1. Die; 2. Punch; 3. Lower connecting seat; 4. Upper connecting seat; 5. Buckle plate; 6. Rotating shaft; 7. Buckle groove; 8. U-shaped groove; 9. Threaded post; 10. Locking nut; 11. Positioning angle plate; 12. Lifting ring; 13. Anti-loosening washer; 14. Chamfer; 15. Rounded corner. Detailed Implementation
[0021] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.
[0022] Example
[0023] Please see Figures 1-6 The present invention relates to an engine intake manifold mold, comprising a concave mold 1, a convex mold 2 fitted to the top of the concave mold 1, and mating components between the left and right sides of the concave mold 1 and the convex mold 2. The mating components include a lower connecting seat 3, an upper connecting seat 4, and a retaining plate 5. The lower connecting seat 3 and the upper connecting seat 4 are respectively fixedly connected to one side of the concave mold 1 and the convex mold 2. A rotating shaft 6 is fixedly provided at both the front and rear ends of the retaining plate 5. The retaining plate 5 is rotatably mounted on the lower connecting seat 3 via the rotating shaft 6, and the inner end of the retaining plate 5 is aligned with the inner side of the lower connecting seat 3. A retaining groove 7 is provided at the upper part of the inner side of the retaining plate 5, through which the retaining plate 5 is fastened to the upper connecting seat 4. The lower edge of the retaining groove 7 is lower than the bottom end of the upper connecting seat 4, and the upper edge of the retaining groove 7 is aligned with the top end of the upper connecting seat 4. A U-shaped slot 8 is provided at the top of the retaining plate 5, and the top end of the upper connecting seat 4 is fixed. A threaded post 9 is connected and engages with a U-shaped groove 8. A locking nut 10 is screwed onto the threaded post 9 and presses against the top of the buckle plate 5. In use, the punch 2 is fastened onto the die 1, aligning the punch 2 and die 1. Then, the buckle plate 5 is rotated to a vertical position, allowing it to engage with the upper connecting seat 4 via the buckle groove 7. This causes the threaded post 9 to engage with the U-shaped groove 8. The locking nut 10 is then tightened, pressing against the top of the buckle plate 5, thus allowing the die 1 and punch 2 to engage together. During engagement, the buckle plate 5 is flipped over to engage with the upper connecting seat 4, and then pressed against the upper connecting seat 4 by the locking nut 10. This makes the engagement of the die and punch easier and more reliable, improving practicality.
[0024] Two sets of positioning angle plates 11 are fixedly connected to the outer diagonal of the die 1. By setting the positioning angle plates 11, it is easier to align the punch 2 with the die 1 when they are engaged, thereby further improving the convenience of the engagement between the die 1 and the punch 2.
[0025] The punch 2 is provided with screw holes at the four corners of its top, and each screw hole is fitted with a lifting ring 12; by providing the lifting ring 12, the punch 2 can be easily lifted.
[0026] Both sets of locking nuts 10 are fixedly connected to the bottom end with anti-loosening washers 13; by setting anti-loosening washers 13, the locking nuts 10 can be prevented from loosening after tightening, thus improving the tightness.
[0027] Both sets of positioning angle plates 11 have chamfers 14 on the upper edge of their inner sidewalls; by setting chamfers 14, the punch 2 can be more easily inserted into the positioning angle plate 11, which plays a guiding role.
[0028] Both sets of U-shaped slots 8 have rounded corners 15 on their outer edges; by setting rounded corners 15, the threaded post 9 can be more easily inserted into the U-shaped slot 8.
[0029] The working principle of this utility model engine intake pipe mold is as follows: When in use, the punch 2 is fastened onto the die 1, and the punch 2 and die 1 are quickly aligned by the positioning angle plate 11. Then, the fastening plate 5 is rotated to the vertical position, so that the fastening plate 5 is fastened onto the upper connecting seat 4 through the fastening groove 7, and then the threaded post 9 is inserted into the U-shaped groove 8. Next, the locking nut 10 is tightened, so that the locking nut 10 is pressed against the top of the fastening plate 5, thereby making the die 1 and the punch 2 fit together. During the fit, the fastening plate 5 is flipped to fasten the fastening plate 5 onto the upper connecting seat 4, and then pressed by the locking nut 10 to complete the fit.
[0030] The engine intake manifold mold of this utility model can be installed, connected, or set in a common mechanical manner, and any method that can achieve its beneficial effect can be implemented. The concave mold 1 and convex mold 2 in this utility model are both referenced from a forming mold for processing engine intake manifolds with patent publication number CN214687723U, which belongs to the prior art that has been disclosed. Its specific structure and working principle have been described in detail in that patent, so they will not be repeated here.
[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. An engine intake manifold mold, comprising a concave mold (1), wherein a convex mold (2) is fitted to the top of the concave mold (1), characterized in that, The die (1) and the punch (2) are provided with mating components on their left and right sides; The fitting assembly includes a lower connecting seat (3), an upper connecting seat (4), and a buckle plate (5). The lower connecting seat (3) and the upper connecting seat (4) are respectively fixedly connected to one side of the die (1) and the punch (2). The buckle plate (5) has a rotating shaft (6) fixed at both ends. The buckle plate (5) is rotatably mounted on the lower connecting seat (3) through the rotating shaft (6), and the inner side of the buckle plate (5) is aligned with the inner side of the lower connecting seat (3). A buckle groove (7) is provided on the upper part of the inner side of the buckle plate (5). The buckle plate (5) is fastened to the upper connecting seat (4) through the buckle groove (7). The lower edge of the buckle groove (7) is lower than the bottom of the upper connecting seat (4), and the upper edge of the buckle groove (7) is aligned with the top of the upper connecting seat (4). A U-shaped slot (8) is provided on the top of the buckle plate (5). A threaded post (9) is fixedly connected to the top of the upper connecting seat (4). The threaded post (9) is inserted into the U-shaped slot (8). A locking nut (10) is screwed onto the threaded post (9). The locking nut (10) is pressed against the top of the buckle plate (5).
2. The engine intake manifold mold as described in claim 1, characterized in that, The outer diagonally opposite side of the die (1) is fixedly connected with two sets of positioning corner plates (11).
3. The engine intake manifold mold as described in claim 2, characterized in that, The punch (2) has screw holes at the four corners of its top, and each screw hole is fitted with a lifting ring (12).
4. The engine intake manifold mold as described in claim 3, characterized in that, Both sets of locking nuts (10) have anti-loosening washers (13) fixedly connected to their bottom ends.
5. The engine intake manifold mold as described in claim 4, characterized in that, Both sets of positioning corner plates (11) have chamfers (14) on the upper edge of their inner sidewalls.
6. The engine intake manifold mold as described in claim 5, characterized in that, Both sets of U-shaped slots (8) have rounded corners (15) at their outer edges.