Dustproof mixer

Abstract

The utility model provides a dustproof mixer, and belongs to the technical field of mixers. Comprising a mixer body, a plurality of binding posts used for being connected with external wire harnesses are arranged on the mixer body, the mixer body is arranged in an inner cavity of the shell, a plurality of first through holes allowing the binding posts to penetrate out one by one are formed in the shell, and a plurality of dust covers used for shielding the binding posts one by one are arranged on the outer side of the shell. A second through hole is formed in the side, away from the shell, of the dustproof cover. A sealing piece used for blocking a gap between an external wire harness and the inner side wall of the second through hole is arranged at the second through hole on the inner side of the dustproof cover. The working stability of the mixer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mixers, in particular to a dust-proof mixer. Background Art

[0002] A mixer is a circuit that produces an output signal with a frequency equal to the sum, difference, or some other combination of the frequencies of its two input signals. Mixers typically consist of nonlinear elements and a frequency-selective circuit.

[0003] In industrial production, mixers are common electrical components, housing numerous circuits and electronic parts. When used in dusty workshops, dust from the air can gradually adhere to and accumulate on the mixer, potentially affecting its operation and causing instability. Utility Model Content

[0004] In view of the above problems, the utility model provides a dust-proof mixer.

[0005] In order to achieve the above-mentioned purpose of the invention, the technical solution adopted by the present invention is as follows:

[0006] A dustproof mixer is provided, comprising a mixer body provided with a plurality of terminals for connecting to an external wiring harness, and a housing. The mixer body is disposed in an inner cavity of the housing, the housing is provided with a plurality of first through holes for allowing the terminals to pass through one by one, a plurality of dust covers are provided on the outer side of the housing for shielding the terminals one by one, a second through hole is provided on a side of the dust cover away from the housing, and a sealing member is provided on the inner side of the dust cover at the second through hole for sealing a gap between the external wiring harness and the inner side wall of the second through hole.

[0007] Furthermore, the seal includes a plurality of baffles, which are circumferentially arranged on the inner wall of the dust cover, and the plurality of baffles are rotatably arranged on the inner wall of the dust cover. The ends of the plurality of baffles away from their own rotating shafts are each provided with a notch, and the plurality of notches are combined to form a harness hole for allowing external wiring harnesses to pass through. The inner wall of the dust cover is provided with a plurality of elastic members for driving the baffles to rotate one by one and keeping the movable ends of the baffles away from the terminal. The inner wall of the dust cover is also provided with a limit member for limiting the rotation angle of the baffle.

[0008] Furthermore, the elastic part includes a torsion spring, the two ends of which are respectively arranged on the corresponding baffle and the inner wall of the dust cover, and the torsion spring is located on the side of the baffle close to the terminal; the limiting part includes a limiting boss, which is arranged on the inner wall of the dust cover and is located on the side of the baffle away from the limiting column.

[0009] Furthermore, a sealing gasket is provided on the side wall of the baffle around its circumference, and the sealing gasket contacts a surface of the limiting boss close to the baffle.

[0010] Furthermore, the sealing gasket is made of sponge.

[0011] Furthermore, a sleeve is provided on the dust cover at the second through hole, sliding along the axial direction of the terminal post, for driving the baffle to rotate and bringing the movable end of the baffle close to the terminal post.

[0012] The beneficial effects of the present invention are as follows: since the mixer body is located in the housing and the terminal is located in the dust cover, this design can protect the mixer body from dust; and by sealing the gap between the external wiring harness and the inner wall of the second through hole, dust can be further prevented from entering the dust cover, thereby improving the working stability of the mixer. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a dust-proof mixer according to an embodiment of the present application.

[0014] Figure 2 This is a schematic diagram of the internal structure of a dustproof cover of a dustproof mixer according to an embodiment of the present application.

[0015] Figure 3 This is a schematic diagram of the rotation state of a baffle of a dust-proof mixer according to an embodiment of the present application.

[0016] Among them, 1. shell; 2. dust cover; 21. second through hole; 3. sealing member; 31. baffle; 32. wiring harness hole; 4. elastic member; 5. limit member; 6. sealing gasket; 7. sleeve; 8. terminal. DETAILED DESCRIPTION

[0017] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0018] The present application discloses a dust-proof mixer, referring to Figure 1 、 Figure 2 and Figure 3 The device comprises a mixer body, on which are mounted a plurality of terminals 8 for connecting to an external wiring harness. It also comprises a housing 1, within which the mixer body is mounted. The housing 1 is provided with a plurality of first through-holes for allowing the terminals 8 to pass through. Multiple dust covers 2 are welded to the outside of the housing 1, each of which shields the terminals 8. The side of the dust cover 2 facing away from the housing 1 defines a second through-hole 21. A seal 3 is mounted on the inside of the dust cover 2, at the second through-hole 21, to seal the gap between the external wiring harness and the inner wall of the second through-hole 21.

[0019] In an embodiment of the present application, when using the mixer, the staff can hold the wiring harness and connect the terminal end of the wiring harness to the terminal 8 on the mixer body (the mixer body is located inside the housing, not shown in the figure). Since the mixer body is located inside the housing 1 and the terminal 8 is located inside the dust cover 2, this design can protect the mixer body from dust. The gap between the external wiring harness and the inner wall of the second through hole 21 is blocked by the seal 3, which can further prevent dust from entering the dust cover 2. This has the effect of improving the operating stability of the mixer.

[0020] Specifically, the seal 3 comprises a plurality of baffles 31, which are circumferentially arranged on the inner sidewall of the dust cover 2 and pivotally mounted thereon. Each baffle 31 has a notch at one end, distal from the rotational axis, and these notches together form a harness hole 32 for the passage of an external wiring harness. Multiple elastic members 4 are mounted on the inner sidewall of the dust cover 2 to individually rotate the baffles 31 and keep their movable ends away from the terminal 8. Also mounted on the inner sidewall of the dust cover 2 are stoppers 5 to limit the rotation angle of the baffles 31.

[0021] In the embodiment of the present application, when a worker holds the wiring harness and connects it to the terminal 8, they can manually push open the baffle 31 to allow the terminal connector at the end of the wiring harness to be installed on the terminal 8. After the wiring harness is installed, the worker releases the baffle 31. Under the elastic force of the elastic member 4, the baffle 31 rotates and moves its movable end away from the terminal 8. Then, under the action of the stop member 5, the baffle 31 stops rotating. At this time, the notches on the multiple baffles 31 can be closed together to form the wiring harness hole 32. The multiple baffles 31 can prevent dust from entering the dust cover 2 through the second through hole 21.

[0022] Specifically, the elastic member 4 comprises a torsion spring, the two ends of which respectively abut the corresponding baffle 31 and the inner wall of the dust cover 2. The torsion spring is located on the side of the baffle 31 closest to the terminal 8. The limiting member 5 comprises a limiting boss, which is welded to the inner wall of the dust cover 2 and is located on the side of the baffle 31 away from the limiting post.

[0023] Since the baffle 31 is rotatably arranged on the inner side wall of the dust cover 2, there is also a gap between the baffle 31 and the inner side wall of the dust cover 2. In order to solve this problem, a sealing gasket 6 is adhered around the side wall of the baffle 31 around its own circumference, and the sealing gasket 6 contacts a side of the limiting boss close to the baffle 31.

[0024] In this embodiment of the present application, the sealing gasket 6 is made of sponge. This further enhances the dustproofing effect of the baffle 31. Furthermore, when the wiring harness is connected to the terminal 8, the portion of the sealing gasket 6 located at the notch of the baffle 31 comes into contact with the outer sheath of the wiring harness, further enhancing the dustproofing effect of the baffle 31.

[0025] In order to facilitate the staff to push open the baffle 31, a sleeve 7 is provided on the dust cover 2 at the second through hole 21 to slide axially along the terminal 8 for driving the baffle 31 to rotate and bring the movable end of the baffle 31 close to the terminal 8.

[0026] In the embodiment of the present application, the staff applies force to push the sleeve 7, which can drive the sleeve 7 to slide closer to the terminal 8, thereby pushing open the baffle 31. After the wiring harness is connected to the terminal 8, the staff releases the sleeve 7, and under the elastic force of the torsion spring, the movable end of the baffle 31 moves away from the terminal 8, pushing the sleeve 7 away from the terminal 8.

[0027] The dust-proof mixer of the present invention is implemented as follows: When using the mixer, a worker can hold the wiring harness and connect the terminal end of the wiring harness to the terminal 8 on the mixer body. Since the mixer body is located within the housing 1 and the terminal 8 is located within the dust cover 2, this design can protect the mixer body from dust. The gap between the external wiring harness and the inner wall of the second through hole 21 is sealed by the seal 3, further preventing dust from entering the dust cover 2. This has the effect of improving the operating stability of the mixer.

[0028] Those skilled in the art will appreciate that, although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they become aware of the underlying inventive concepts. Therefore, the appended claims are intended to be interpreted as encompassing the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Clearly, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, the present invention is intended to encompass such changes and modifications as fall within the scope of the claims and their equivalents.

Claims

1. A dustproof mixer, comprising a mixer body, the mixer body being provided with a plurality of terminals (8) for connecting to an external wiring harness, characterized in that: The invention also includes a housing (1), wherein the mixer body is arranged in the inner cavity of the housing (1), the housing (1) is provided with a plurality of first through holes for allowing the terminal posts (8) to pass through one by one, the outer side of the housing (1) is provided with a plurality of dust covers (2) for shielding the terminal posts (8) one by one, the dust cover (2) is provided with a second through hole (21) on a side away from the housing (1), and the inner side of the dust cover (2) is provided with a sealing member (3) at the second through hole (21) for blocking the gap between the external wiring harness and the inner side wall of the second through hole (21).

2. The dust-proof mixer according to claim 1, characterized in that: The sealing member (3) comprises a plurality of baffles (31), the plurality of baffles (31) being circumferentially arranged on the inner side wall of the dust cover (2), the plurality of baffles (31) being rotatably arranged on the inner side wall of the dust cover (2), the plurality of baffles (31) being provided with notches at one end away from their own rotating shafts, and the plurality of notches being combined to form a harness hole (32) for allowing an external harness to pass through, the inner side wall of the dust cover (2) being provided with a plurality of elastic members (4) for driving the baffles (31) to rotate one by one and for keeping the movable end of the baffles (31) away from the terminal (8), and the inner side wall of the dust cover (2) being further provided with a limiting member (5) for limiting the rotation angle of the baffle (31).

3. The dust-proof mixer according to claim 2, characterized in that: The elastic member (4) includes a torsion spring, the two ends of which are respectively arranged on the corresponding baffle (31) and the inner wall of the dust cover (2), and the torsion spring is located on the side of the baffle (31) close to the terminal (8); the limiting member (5) includes a limiting boss, which is arranged on the inner wall of the dust cover (2) and is located on the side of the baffle (31) away from the limiting column.

4. The dust-proof mixer according to claim 3, characterized in that: A sealing gasket (6) is provided on the side wall of the baffle (31) around its circumference, and the sealing gasket (6) is in contact with a side of the limiting boss close to the baffle (31).

5. The dust-proof mixer according to claim 4, characterized in that: The sealing pad (6) is made of sponge.

6. The dust-proof mixer according to claim 3, characterized in that: A sleeve (7) is provided on the dust cover (2) at the second through hole (21) and slides axially along the terminal (8) for driving the baffle (31) to rotate and bringing the movable end of the baffle (31) close to the terminal (8).

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