CN217720883U

CN217720883U - Waterproof shell for stepping motor

Info

Publication number: CN217720883U
Application number: CN202123404059.1U
Authority: CN
Inventors: 李荣华; 肖秋根; 肖春根
Original assignee: Changzhou Dechang Electromechanical Technology Co ltd
Current assignee: Changzhou Dechang Electromechanical Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-11-01
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a waterproof housing for step motor, concretely relates to step motor technical field, include the shell and install the end cover at the shell tip, it is sealed through the sealing washer between shell and the end cover, the sealing washer has more than one bead, sealing washer and bead mutually perpendicular are alternately, annular one and annular two of quantity are corresponding with the bead are seted up respectively to the terminal surface of shell and end cover, the both ends of bead are located the inside of annular one and annular two respectively, the tip of bead is provided with deformation sealing, deformation sealing has the air cavity, deformation sealing and air cavity are extruded the back, deformation sealing is pressed in annular one and annular two's internal surface. The utility model discloses a setting of sealing washer and deformation sealing and air cavity, when the installation, deformation sealing and air cavity pressurized for deformation sealing is hugged closely with the inner wall of annular one or annular two, thereby can improve sealed effect, and water can not get into step motor's inside, can use for a long time.

Description

Waterproof shell for stepping motor

Technical Field

The utility model relates to a step motor technical field, more specifically say, the utility model relates to a step motor is with waterproof housing.

Background

The stepping motor can accurately control the running speed and the running position and can also run at a low speed, the output torque is generally larger than that of other motors with the same size, and water easily enters from the connecting part of the shell to influence the performance of the stepping motor when equipment provided with the motor runs on a rainy day or a wading road section.

The sealing of the prior stepping motor is generally to coat a sealant at a gap, and the sealing mode can quickly lose the sealing function along with long-time use when being damaged, so that the reliability of long-time use is difficult to ensure.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the utility model provides a step motor is with waterproof housing, the utility model aims to solve the technical problem that: the sealing effect is difficult to ensure by using the mode of coating the sealant at the gap of the stepping motor for a long time.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a waterproof case for step motor, includes the shell and installs the end cover at the shell tip, it is sealed through the sealing washer between shell and the end cover, the sealing washer has more than one bead, sealing washer and bead mutually perpendicular are alternately, the annular that corresponds quantity with the bead is first and annular two are seted up respectively to the terminal surface of shell and end cover, the both ends of bead are located the inside of annular one and annular two respectively, the tip of bead is provided with deformation sealing, deformation sealing has the air cavity, deformation sealing and air cavity are extruded the back, and deformation sealing is pressed in the internal surface of annular one and annular two.

Preferably, the deformation sealing part is a first deformation ring fixedly connected to the end part of the rib, and the air cavity is a first inner cavity arranged in the first deformation ring.

Preferably, the deformation sealing part is a deformation ring II fixedly connected to the end part of the convex edge, the air cavity is an inner cavity II arranged in the deformation ring II, one side or two sides of the convex edge are provided with annular grooves, and the deformation ring II can enter the annular grooves after being extruded.

Preferably, the deformation sealing part is a deformation strip fixedly connected to the end part of the rib, and the air cavity is a third inner cavity arranged in the deformation ring II.

Preferably, an inclined opening is formed in one side, close to the outer portion of the shell, of the joint of the convex rib and the sealing ring, and one end of the inclined opening extends towards the middle of the convex rib.

Preferably, the sealing ring and the convex rib are made of natural rubber or silicon rubber.

The utility model discloses a technological effect and advantage:

1. the utility model has the advantages that through the arrangement of the sealing ring, the deformation sealing part and the air cavity, when being installed, the deformation sealing part and the air cavity are pressed, so that the deformation sealing part is tightly attached to the inner wall of the first annular groove or the second annular groove, thereby improving the sealing effect, water can not enter the interior of the stepping motor, and the stepping motor can be used for a long time;

2. the utility model discloses a setting of bevel connection, when water enters along the sealing washer, can advance into the bevel connection, can make water extrude the bead to the lateral wall of annular one or annular two, the extrusion force increase improves sealed effect.

Drawings

Fig. 1 is a schematic diagram of the external structure of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a partially enlarged view of a portion a in fig. 2 according to the present invention.

Fig. 4 is a cross-sectional view of the sealing ring of the present invention when not installed.

The reference signs are:

the device comprises a shell 1, a first 11 ring groove, an end cover 2, a second 21 ring groove, a 3 sealing ring, a 31 convex rib, a 32 inclined opening, a 33 ring groove, a first 4 deformation ring, a first 41 inner cavity, a second 5 deformation ring, a second 51 inner cavity, a 6 deformation strip and a third 61 inner cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The utility model provides a step motor is with waterproof housing.

Example one

As shown in fig. 1-4, a waterproof housing for a stepping motor, includes a housing 1 and an end cover 2 installed at an end of the housing 1, the housing 1 and the end cover 2 are sealed by a sealing ring 3, the sealing ring 3 has more than one rib 31, in this embodiment, one rib 31 is provided, the sealing ring 3 and the rib 31 are mutually perpendicular and crossed, ring grooves one 11 and ring grooves two 21 are respectively provided on end surfaces of the housing 1 and the end cover 2, the ring grooves one 11 and the ring grooves two 21 are in a number corresponding to that of the rib 31, two ends of the rib 31 are respectively located inside the ring grooves one 11 and the ring grooves two 21, an end of the rib 31 is provided with a deformation sealing part, the deformation sealing part has an air cavity, and after the deformation sealing part and the air cavity are extruded, the deformation sealing part presses inner surfaces of the ring grooves one 11 and the ring grooves two 21.

Specifically, the deformation sealing part is a deformation ring I4 fixedly connected to the end part of the rib 31, and the air cavity is an inner cavity I41 arranged inside the deformation ring I4.

When the sealing ring 3 is installed, one end of the convex rib 31 is pressed into the first annular groove 11, then the end cover 2 is closed, the other end of the convex rib 31 is pressed into the second annular groove 21, then the shell 1 and the end cover 2 are connected together by using the bolt, at the moment, as shown in fig. 3, the deformation ring one 4 is pressed, and air in the inner cavity one 41 is pressed, so that the deformation ring one 4 can be tightly attached to the inner wall of the first annular groove 11 or the second annular groove 21, and a sealing effect is achieved.

Furthermore, the inclined opening 32 is formed in the connecting position of the convex rib 31 and the sealing ring 3 and on the side close to the outer portion of the shell 1, when water enters along the sealing ring 3, the water can enter the inclined opening 32 firstly, one end of the inclined opening 32 extends towards the middle of the convex rib 31, and therefore the water can extrude the convex rib 31 towards the side wall of the first ring groove 11 or the second ring groove 21, extrusion force is increased, and sealing effect is improved. The sealing ring 3 and the convex rib 31 are made of natural rubber or silicon rubber.

Example two

As shown in fig. 1-4, different from the first embodiment, the deformable sealing portion is a second deformable ring 5 fixedly connected to the end of the rib 31, the air chamber is a second inner chamber 51 arranged inside the second deformable ring 5, one side or both sides of the rib 31 are provided with annular grooves 33, preferably both sides, and the second deformable ring 5 can enter the annular grooves 33 after being extruded.

After the installation method of the first embodiment is installed, as shown in fig. 3, the second deformation ring 5 is pressed, and the air inside the inner cavity 51 is pressed, so that the second deformation ring 5 can enter the annular groove 33, the end portion of the second deformation ring 5 is pressed against the end wall of the first annular groove 11 or the second annular groove 21, and both sides of the second deformation ring 5 are pressed against the side walls of the first annular groove 11 or the second annular groove 21, which is more compact than the first embodiment.

EXAMPLE III

As shown in fig. 1-4, the difference from the first embodiment is that the deformation sealing part is a deformation strip 6 fixedly connected to the end of the rib 31, and the air cavity is an inner cavity three 61 arranged inside the deformation ring two 5.

After the installation method according to the first embodiment is installed, as shown in fig. 3, the deformation strip 6 is compressed, and the air inside the cavity three 61 is compressed, so that the cavity three 61 can be bent into a serpentine shape, and thus, the cavity three can be pressed against the inner wall of the ring groove one 11 or the ring groove two 21.

Example four

As shown in fig. 1-4, different from the first to third embodiments, one or more deformation rings one 4, inner cavities one 41 or two 5, inner cavities two 51 or deformation strips 6, and inner cavities three 61 are selected and arranged at the same time, the number is not limited to one group, and the number of the ribs 31 corresponds to the selected number, so that the sealing effect is better.

To sum up, through the setting of sealing washer 3 and deformation sealing and air cavity, when the installation, deformation sealing and air cavity pressurized for deformation sealing is hugged closely with the inner wall of annular one 11 or annular two 21, thereby can improve sealed effect, and water can not get into step motor's inside, can use for a long time.

Through the setting of bevel connection 32, when water entered along sealing washer 3, can advance into bevel connection 32, can make water extrude the lateral wall of bead 31 to annular one 11 or annular two 21, the extrusion force increase improves sealed effect.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to common designs, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a waterproof housing for step motor, includes shell (1) and installs end cover (2) at shell (1) tip, it is sealed through sealing washer (3) between shell (1) and end cover (2), its characterized in that: sealing washer (3) have more than one bead (31), sealing washer (3) and bead (31) mutually perpendicular are alternately, ring groove (11) and ring groove two (21) that correspond quantity with bead (31) are seted up respectively to the terminal surface of shell (1) and end cover (2), the both ends of bead (31) are located the inside of ring groove one (11) and ring groove two (21) respectively, the tip of bead (31) is provided with the deformation sealing, the deformation sealing has the air cavity, deformation sealing and air cavity are extruded the back, and the deformation sealing is pressed in the internal surface of ring groove one (11) and ring groove two (21).

2. The waterproof case for the stepping motor according to claim 1, wherein: the deformation sealing part is a deformation ring I (4) fixedly connected to the end part of the convex rib (31), and the air cavity is an inner cavity I (41) arranged inside the deformation ring I (4).

3. The waterproof case for the stepping motor according to claim 1, wherein: deformation sealing portion is deformation circle two (5) of fixed connection at bead (31) tip, the air cavity is for setting up at deformation circle two (5) inside inner chamber two (51), annular (33) have been seted up to one side or both sides of bead (31), deformation circle two (5) can get into the inside of annular (33) after being extrudeed.

4. The waterproof case for the stepping motor according to claim 1, wherein: the deformation sealing part is a deformation strip (6) fixedly connected to the end part of the convex rib (31), and the air cavity is an inner cavity III (61) arranged inside the deformation ring II (5).

5. The waterproof case for a stepping motor according to any one of claims 1 to 4, wherein: the connection part of the convex rib (31) and the sealing ring (3) and one side close to the outer part of the shell (1) are provided with an inclined opening (32), and one end of the inclined opening (32) extends towards the middle part of the convex rib (31).

6. The waterproof case for a stepping motor according to claim 5, wherein: the sealing ring (3) and the convex ribs (31) are made of natural rubber or silicon rubber.