Injection mold for bath heater switch bottom box

By introducing a blocking and positioning mechanism into the injection mold, and using a rotary motor to drive the screw to move the baffle to block the injection material, the problem of injection port blockage is solved, and processing efficiency and safety are improved.

CN224012858UActive Publication Date: 2026-03-20DONG GUAN CITY 3T MOLD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Existing injection molds are prone to clogging at the injection port during long-term injection processes, which prevents the injection port from being effectively blocked and affects the subsequent injection of raw materials.

Method used

The system employs a blocking mechanism and a positioning mechanism. A rotary motor drives a screw to move a baffle to block the injection of raw materials. An infrared sensor controls the distance between the baffles, and the positioning mechanism allows for easy replacement of the baffles, ensuring the normal use of the mold.

Benefits of technology

It improves injection molding efficiency, prevents baffle collisions, ensures unobstructed injection ports, simplifies baffle replacement procedures, and protects operator safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224012858U_ABST
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Abstract

The utility model provides an injection mold for a bath heater switch bottom box, which comprises an injection molding plate, the rear side of the injection molding plate is provided with an injection mold, the front side of the injection molding plate is fixedly connected with a support plate, the top of the support plate is provided with a blocking mechanism, the blocking mechanism comprises a lifting plate, a baffle and a screw rod, the surface of the screw rod is movably connected to the inner side of the supporting plate, the lifting plate is in threaded connection to the surface of the screw rod, the outer side of the baffle is movably connected to the inner side of the lifting plate, the top of the supporting plate is fixedly connected with a rotating motor, and the top of the screw rod is fixedly connected to the output end of the rotating motor. When the injection mold is machined, the rotating motor drives the screw rod to rotate, the screw rod drives the baffle to move on the inner side at the same time, injection molding raw materials are blocked, the machining efficiency is improved, and by arranging the infrared sensor, the distance between the baffles can be controlled when the baffles move, and the baffles are prevented from colliding with one another.
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Description

Technical Field

[0001] This utility model relates to an injection mold for a bathroom heater switch box, belonging to the field of injection mold technology. Background Technology

[0002] A bathroom heater switch box is a device used to install a bathroom heater switch, and it typically has a standardized size. The dimensions of these boxes and the pitch and position of the mounting screws are uniform to ensure compatibility. During installation, ordinary switches are usually installed outside the toilet door, while bathroom heater switches are installed inside the door for easy access. Bathroom heater switch boxes are usually manufactured using injection molding.

[0003] Chinese Patent Publication No. CN 220517477 U discloses an injection mold, belonging to the field of injection molding. The injection mold includes a housing, a cover disposed on the housing, and further includes: a gap formed at the bottom of the housing; an air inlet assembly for supplying air; a cooling assembly for cooling the mold; a telescopic rod fixedly connected to the cover; a fixing plate fixedly connected to the telescopic rod; and a top plug disposed within the housing. This invention effectively increases the cooling and heat dissipation effect of the device and effectively increases the demolding efficiency.

[0004] However, during injection molding, heated raw material is injected into the mold and then cooled to form the final product. Prolonged injection can cause a large amount of solidified raw material to remain at the injection port, leading to blockage. Existing equipment cannot block the injection port during cooling, affecting subsequent raw material injection.

[0005] Therefore, an injection mold for the switch box of a bathroom heater is proposed. Utility Model Content

[0006] In view of this, the present invention provides an injection mold for a bathroom heater switch box to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.

[0007] The technical solution of this utility model is implemented as follows: an injection mold for a bathroom heater switch box includes an injection plate, an injection mold is provided on the rear side of the injection plate, a support plate is fixedly connected to the front side of the injection plate, a blocking mechanism is provided on the top of the support plate, the blocking mechanism includes a lifting plate, a baffle and a screw, the surface of the screw is movably connected to the inner side of the support plate, the lifting plate is threadedly connected to the surface of the screw, and the outer side of the baffle is movably connected to the inner side of the lifting plate.

[0008] More preferably, a rotary motor is fixedly connected to the top of the support plate, and the top of the screw is fixedly connected to the output end of the rotary motor.

[0009] Further preferably, an infrared sensor is fixedly connected to the inner side of the lifting plate, and the surface of the screw rod is provided with positive and reverse threads.

[0010] Further preferably, a plug rod is arranged on the front side of the lifting plate, and the plug rod extends through the baffle to the rear side of the lifting plate.

[0011] Further preferably, a positioning block is fixedly connected to the front side of the lifting plate, and a cavity is arranged in the positioning block, and a positioning mechanism is arranged in the cavity.

[0012] Further preferably, the positioning mechanism comprises a moving rod, a connecting rod and a compression spring, the moving rod extends through the cavity to the front side of the positioning block, the rear side of the moving rod extends into the cavity, the connecting rod is fixedly connected to the rear side of the moving rod, the compression spring is fixedly connected to the inner side of the connecting rod, and the outer side of the connecting rod extends into the plug rod.

[0013] Further preferably, a fixing groove is arranged on the surface of the plug rod, and the outer side of the connecting rod is movably connected to the inner side of the fixing groove.

[0014] Further preferably, a limiting block is fixedly connected to the inner side of the cavity, and the limiting block is sleeved on the surface of the connecting rod.

[0015] The above technical scheme has the following advantages:

[0016] Firstly, the blocking mechanism is arranged, when the injection mold is processed, the rotating motor drives the screw rod to rotate, the screw rod drives the baffle to move at the same time, the injection material is blocked, the processing efficiency is improved, the infrared sensor is arranged, the distance between the baffles can be controlled when the baffles move, and the baffles are prevented from colliding.

[0017] Secondly, the positioning mechanism is arranged, when the baffle is replaced, the moving rod drives the positioning rod to move, the baffle can be replaced by the staff conveniently, the stability of the baffle is ensured, the working efficiency is improved, the operator is protected, the limiting block is arranged, the connecting rod moves along the moving track provided by the limiting block, and the normal use of the overall structure is ensured.

[0018] The above summary is only for the purpose of the description and is not intended to limit in any way. In addition to the above-described exemplary aspects, embodiments and features, further aspects, embodiments and features of the present application will be apparent from the drawings and the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the accompanying drawings in the following description only represent some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 It is a schematic diagram of the three-dimensional front view structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the blocking mechanism structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the baffle structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the utility model; Figure 3 It is a schematic diagram of the local enlarged structure at A in the utility model;

[0024] Figure 5 It is a schematic diagram of the plug rod structure of the utility model.

[0025] Reference signs: 1, injection molding plate; 2, injection molding mold; 3, support plate; 4, blocking mechanism; 401, lifting plate; 402, baffle; 403, screw rod; 5, rotary motor; 6, infrared inductor; 7, plug rod; 8, positioning block; 9, cavity; 10, positioning mechanism; 1001, moving rod; 1002, connecting rod; 1003, compression spring; 11, fixed groove; 12, limiting block. DETAILED DESCRIPTION

[0026] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0027] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0028] Embodiment 1

[0029] As Figures 1-3The utility model discloses an injection mold 2 for bath heater switch bottom box provides, including injection board 1, the rear side of injection board 1 is provided with injection mold 2, the front side fixedly connected with support plate 3 of injection board 1, the top of support plate 3 is provided with the blocking mechanism 4, the blocking mechanism 4 includes lift plate 401, baffle 402 and screw rod 403, the surface movable joint of screw rod 403 is in the inner side of support plate 3, lift plate 401 is screwed on the surface of screw rod 403, the outer side movable joint of baffle 402 is in the inner side of lift plate 401, the top fixedly connected with rotary motor 5 of support plate 3, the top fixedly connected with the output end of rotary motor 5 of screw rod 403, the inner side fixedly connected with infrared sensor 6 of lift plate 401, the surface of screw rod 403 is set up as positive and negative thread respectively, the front side of lift plate 401 is provided with plug rod 7, the rear side of plug rod 7 extends to the rear side of lift plate 401 and passes through baffle 402.

[0030] Through the blocking mechanism 4, when processing injection mold 2, rotary motor 5 drives screw rod 403 to rotate, screw rod 403 drives baffle 402 to move at the same time, and the processing efficiency is improved.

[0031] Embodiment 2

[0032] As Figures 3-5 As shown in one embodiment, the front side of lift plate 401 is fixedly connected with positioning block 8, the inside of positioning block 8 is provided with cavity 9, the inside of cavity 9 is provided with positioning mechanism 10, positioning mechanism 10 includes moving rod 1001, connecting rod 1002 and compression spring 1003, the front side of moving rod 1001 extends to the front side of positioning block 8 and passes through cavity 9, the rear side of moving rod 1001 passes through the inside of cavity 9, the front side of connecting rod 1002 is fixedly connected to the rear side of moving rod 1001, the outer side of compression spring 1003 is fixedly connected to the inner side of connecting rod 1002, the outer side of connecting rod 1002 extends to the inside of plug rod 7, the surface of plug rod 7 is provided with fixed groove 11, the outer side of connecting rod 1002 is movably connected to the inside of fixed groove 11, the inside of cavity 9 is fixedly connected with limiting block 12, and limiting block 12 is sleeved on the surface of connecting rod 1002.

[0033] Through positioning mechanism 10, when replacing baffle 402, moving rod 1001 drives positioning rod to move, which facilitates workers to replace baffle 402 while ensuring the stability of baffle 402, improves work efficiency, and protects operators.

[0034] In operation, this invention works as follows: First, after the mold is injected, the rotary motor is started, which drives the screw 403 to rotate. The screw 403 drives the lifting plate 401 to move inward simultaneously. The lifting plate 401 pushes the baffle 402 to move inward simultaneously, blocking the injection material and preventing it from solidifying inside. When re-injection is required, the rotary motor drives the screw 403 to rotate in the opposite direction, reopening the injection port for injection. When the baffle 402 needs to be replaced, the moving rod 1001 is pressed inward simultaneously. The moving rod 1001 drives the positioning rod to move inward simultaneously, moving the connecting rod 1002 away from the inside of the fixing groove 11 and into the cavity 9. At this time, the insert rod 7 can be taken out forward to replace the baffle 402. After replacement, the baffle 402 is reinserted, the moving rod 1001 is released, and the rebound force of the compression spring 1003 pushes the connecting rod 1002 back into the inside of the fixing groove 11.

[0035] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An injection mold for a bathroom heater switch base box, comprising an injection plate (1), characterized in that: An injection mold (2) is provided on the rear side of the injection plate (1), and a support plate (3) is fixedly connected to the front side of the injection plate (1). A blocking mechanism (4) is provided on the top of the support plate (3). The blocking mechanism (4) includes a lifting plate (401), a baffle (402) and a screw (403). The surface of the screw (403) is movably connected to the inner side of the support plate (3). The lifting plate (401) is threadedly connected to the surface of the screw (403). The outer side of the baffle (402) is movably connected to the inner side of the lifting plate (401).

2. The injection mold for a bathroom heater switch base box according to claim 1, characterized in that: A rotary motor (5) is fixedly connected to the top of the support plate (3), and the top of the screw (403) is fixedly connected to the output end of the rotary motor (5).

3. The injection mold for a bathroom heater switch base box according to claim 1, characterized in that: An infrared sensor (6) is fixedly connected to the inner side of the lifting plate (401), and the surface of the screw (403) is respectively opened with positive and negative threads.

4. The injection mold for a bathroom heater switch box according to claim 3, characterized in that: A rod (7) is provided on the front side of the lifting plate (401), and the rear side of the rod (7) extends through the baffle (402) to the rear side of the lifting plate (401).

5. The injection mold for a bathroom heater switch base box according to claim 4, characterized in that: A positioning block (8) is fixedly connected to the front side of the lifting plate (401). A cavity (9) is provided inside the positioning block (8), and a positioning mechanism (10) is provided inside the cavity (9).

6. The injection mold for a bathroom heater switch box according to claim 5, characterized in that: The positioning mechanism (10) includes a moving rod (1001), a connecting rod (1002), and a compression spring (1003). The front side of the moving rod (1001) extends through the cavity (9) to the front side of the positioning block (8), and the rear side of the moving rod (1001) extends into the interior of the cavity (9). The front side of the connecting rod (1002) is fixedly connected to the rear side of the moving rod (1001), and the outer side of the compression spring (1003) is fixedly connected to the inner side of the connecting rod (1002). The outer side of the connecting rod (1002) extends into the interior of the insert rod (7).

7. The injection mold for a bathroom heater switch box according to claim 6, characterized in that: The surface of the insertion rod (7) is provided with a fixing groove (11), and the outer side of the connecting rod (1002) is movably connected to the inside of the fixing groove (11).

8. The injection mold for a bathroom heater switch base box according to claim 6, characterized in that: A limiting block (12) is fixedly connected inside the cavity (9), and the limiting block (12) is sleeved on the surface of the connecting rod (1002).

Citation Information

Patent Citations

  • Injection mold

    CN220517477U