Electric push rod up-down concentric structure

Abstract

The utility model discloses an electric push rod up-down concentric structure, which comprises a motor, a transmission structure and a telescopic structure, the motor, the transmission structure and the telescopic structure are sequentially connected, the transmission structure comprises a transmission assembly and a transmission shell, the transmission shell wraps the outer side of the transmission assembly, the transmission shell comprises a transmission lower shell and a transmission upper shell, and the transmission lower shell is connected with the telescopic structure. A positioning column is arranged at the top of the transmission lower shell, a positioning hole corresponding to the positioning column is formed in the transmission upper shell, a wire baffle is arranged in the transmission lower shell, and the wire baffle surrounds the peripheral side and the bottom side of the transmission assembly. The electric wire is prevented from being wound into the transmission assembly, grease is not prone to losing, the waterproof groove is formed in the connecting position of the upper transmission shell and the lower transmission shell, the waterproof effect of the outer transmission shell is enhanced, the lower transmission shell and the upper transmission shell are connected through the positioning columns and the positioning holes, and the concentricity of the bearing can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electric push rod field especially relates to a kind of electric push rod upper and lower concentric structure. BACKGROUND

[0002] Electric push rod is based on linear drive technology Application instance, has developed into one of indispensable equipment in industrial automation field.The existing electric push rod basically adopts rotating shaft to drive telescopic rod to move, rotating shaft needs to be connected with motor to drive its operation, and the line of detection equipment also needs to pass through the area where rotating shaft is located, which is easy to cause rotating shaft to stir line into rotating shaft in operation process, cause irreparable damage to device, and transmission assembly needs grease to be wrapped to prolong the life of transmission assembly, but existing electric push rod does not protect grease, leading to grease easy to lose, and the actual working environment of existing electric push rod is more complex, and further demand for waterproofing is made. SUMMARY

[0003] In view of the above defects of the prior art, the purpose of the utility model is to provide an electric push rod upper and lower concentric structure.

[0004] The technical scheme of the utility model: an electric push rod upper and lower concentric structure, including motor, transmission structure and telescopic structure, the motor, transmission structure and telescopic structure are sequentially connected, the transmission structure includes transmission assembly and transmission housing, the transmission housing is wrapped outside transmission assembly, the transmission housing includes transmission lower shell and transmission upper shell, the transmission lower shell top is equipped with positioning column, the transmission upper shell is equipped with the positioning hole corresponding with positioning column, the electric wire baffle is equipped in the transmission lower shell, and the electric wire baffle is surrounded on the side and bottom side of transmission assembly.

[0005] Further, the upper edge of the transmission lower shell is provided with a waterproof groove, and the waterproof groove surrounds the upper edge of the transmission lower shell.

[0006] Further, the lower surface of the electric wire baffle is provided with a connecting rod, and the inner bottom wall of the transmission lower shell is provided with a connecting hole corresponding to the connecting rod.

[0007] Further, the connecting hole protrudes from the inner bottom wall of the transmission lower shell, and a wire passage is left between the lower surface of the electric wire baffle and the inner bottom wall of the transmission lower shell.

[0008] Further, the electric wire baffle is provided with a through hole for the transmission assembly to pass through.

[0009] Further, the telescopic structure includes telescopic housing and telescopic assembly, the telescopic housing is wrapped outside the telescopic assembly and connected to the lower end of the transmission lower shell.

[0010] Further, the positioning columns are three, which are respectively arranged at three end points on the top of the transmission lower shell, and the three end points form a triangular structure.

[0011] Compared with the prior art, the utility model has the beneficial effects of:

[0012] 1、 the utility model discloses a wire baffle is added between transmission lower shell and transmission assembly, and wire is arranged between wire baffle and transmission lower shell, avoids that wire is rolled into transmission assembly, and makes grease not easy to lose, and wire baffle adopts screw locking structure, does not have the risk of screw falling into gear, also makes the service life of gear extension.

[0013] 2、 waterproof groove is arranged at the connecting place of transmission upper shell and transmission lower shell, and the waterproof effect of transmission shell is strengthened, water is avoided to seep into transmission assembly and corrode transmission assembly, and silica gel solidification process can also be realized.

[0014] 3、 transmission lower shell and transmission upper shell are connected through the mode of positioning column and positioning hole, the positioning column is three, which are respectively arranged at three ends on the bottom of transmission lower shell, have the effect of three-end positioning, and the concentricity of bearing can be guaranteed. DETAILED DESCRIPTION

[0015] Figure 1 It is the overall structure diagram of the utility model;

[0016] Figure 2 It is the sectional view of the utility model;

[0017] Figure 3 It is the overall structure diagram of transmission upper shell of the utility model;

[0018] Figure 4 It is the overall structure diagram of transmission lower shell of the utility model;

[0019] Figure 5 It is the wire baffle connecting structure diagram of the utility model;

[0020] Figure 6 It is the overall structure diagram of wire baffle of the utility model;

[0021] Figure 7 It is the sectional view of transmission shell of the utility model;

[0022] In the drawing: 1, motor;11, electric shaft;2, transmission structure;21, transmission shell;217, transmission lower shell;2171, positioning column;2172, waterproof groove;2173, connecting hole;2174, wire passage;218, transmission upper shell;2181, positioning hole;219, wire baffle;2191, connecting rod;2192, through hole;22, transmission assembly;3, telescopic structure;31, telescopic shell;32, telescopic assembly. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model. For the purpose of clear illustration, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit the present application. That is, in some embodiments of the present application, these practical details are not necessary. In addition, for the purpose of simplifying the drawings, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0024] In order to further understand the utility model content, characteristics and effects of the present application, the following embodiments are exemplified and described in detail as follows in conjunction with the drawings.

[0025] According to Figures 1 to 7 As shown in the figure, the utility model provides a kind of electric push rod concentric structure, including motor 1, transmission structure 2 and telescopic structure 3, the motor 1, transmission structure 2 and telescopic structure 3 are connected in sequence, the transmission structure 2 includes transmission assembly 22 and transmission housing 21, the transmission housing 21 is wrapped in transmission assembly 22 outside, the transmission housing 21 includes transmission lower shell 217 and transmission upper shell 218, the transmission lower shell 217 top is equipped with positioning column 2171, the transmission upper shell 218 is equipped with the positioning hole 2181 corresponding with positioning column 2171, the transmission lower shell 217 is equipped with wire baffle 219, wire baffle 219 is around transmission assembly 22 side and bottom side. The transmission lower shell 217 is connected by positioning column 2171 and the positioning hole 2181 of transmission upper shell 218, after connection, transmission lower shell 217 and transmission upper shell 218 connection place are closely combined, protect internal transmission assembly 22, positioning column 2171 can also guarantee the concentricity of bearing.

[0026] Further, the transmission lower shell 217 upper edge is equipped with waterproof groove 2172, the waterproof groove 2172 surrounds transmission lower shell 217 upper edge a week. Waterproof groove 2172 is close to the connection place of transmission lower shell 217 and transmission upper shell 218, waterproof groove 2172 has a certain width, when in use, if there is water from transmission lower shell 217 and transmission upper shell 218 connection place seep, it will flow into waterproof groove 2172, prevent water directly flowing into transmission assembly 22, cause influence to transmission assembly 22.

[0027] Further, the lower surface of the wire baffle 219 is provided with connecting rods 2191, and the inner bottom wall of the transmission lower shell 217 is provided with connecting holes 2173 corresponding to the connecting rods 2191. The connecting rods 2191 are protruded from the bottom surface of the wire baffle 219 and are distributed at the edges of the bottom surface of the wire baffle 219. The plurality of connecting holes 2173 are distributed on the bottom surface of the transmission upper shell 218 and correspond to the connecting rods 2191 one by one (in the later stage, an interference fit can be used to realize assembly, to ensure the stability after connection). Since the wire baffle 219 adopts a screw locking structure, there is no risk of screws falling into the gear, and the service life of the gear is also prolonged.

[0028] Further, the connecting holes 2173 are protruded from the inner bottom wall of the transmission lower shell 217, and the lower surface of the wire baffle 219 and the inner bottom wall of the transmission lower shell 217 are left with a wire passing channel 2174. Since the connecting holes 2173 are protruded from the inner bottom wall of the transmission lower shell 217, the connecting rods 2191 raise the wire baffle 219, the wire can pass through the wire passing channel 2174 and be connected to other electrical components, and the wire is prevented from being wound into the transmission assembly 22.

[0029] Further, the wire baffle 219 is provided with a through hole 2192 for the transmission assembly 22 to pass through. The transmission assembly 22 passes through the wire baffle 219 and is connected to the telescopic structure 3. The through hole 2192 on the bottom surface of the wire baffle 219 is arranged along the edge of the transmission assembly 22, has good wrapping performance, and can prevent foreign matter from entering the transmission assembly 22.

[0030] Further, the telescopic structure 3 includes a telescopic shell 31 and a telescopic assembly 32. The telescopic shell 31 is wrapped outside the telescopic assembly 32 and is connected to the lower end of the transmission lower shell 217. The telescopic shell 31 protects the telescopic assembly 32 inside. The telescopic assembly 32 is connected to the lower end of the transmission assembly 22, and the transmission assembly 22 can drive the telescopic assembly 32 to extend and retract.

[0031] Further, the positioning columns 2171 are three, respectively arranged at the three end points of the top of the transmission lower shell 217, and form a triangular structure. The three positioning columns 2171 can better position the installation position and have good connection stability.

[0032] In summary, in the embodiment, the motor 1 is fixed on one side of the transmission assembly 22, the motor 1 has an electric shaft 11, the electric shaft 11 is connected with the transmission assembly 22 and drives the transmission assembly 22 to work, the transmission assembly 22 is wrapped with a transmission shell 21, the transmission shell 21 is positioned and installed through the positioning column 2171, so that the concentricity of the bearing can be guaranteed, a waterproof groove 2172 is arranged at the connecting position of the transmission lower shell 217 and the transmission upper shell 218, when the device works in a harsh environment, it can ensure that the transmission assembly 22 is not affected, the transmission assembly 22 is further wrapped with a wire baffle 219, the wire baffle 219 can prevent the grease in the transmission assembly 22 from seeping out, and the service life of the transmission assembly 22 is prolonged.

[0033] The preferred embodiments of the utility model are described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the utility model without creative labor. Therefore, any technical scheme obtained by logical analysis, reasoning or limited test on the basis of the prior art according to the concept of the utility model should be within the protection scope defined by the claims.

Claims

1. An electric push rod concentric structure, comprising a motor (1), a transmission structure (2) and a telescopic structure (3), the motor (1), the transmission structure (2) and the telescopic structure (3) are connected in sequence, characterized in that: The transmission structure (2) comprises a transmission assembly (22) and a transmission shell (21), the transmission shell (21) is wrapped outside the transmission assembly (22), the transmission shell (21) comprises a transmission lower shell (217) and a transmission upper shell (218), the top of the transmission lower shell (217) is provided with a positioning column (2171), the transmission upper shell (218) is provided with a positioning hole (2181) corresponding to the positioning column (2171), and the wire baffle (219) is arranged in the transmission lower shell (217) and surrounds the transmission assembly (22) on the side and the bottom.

2. The electric trolley concentric structure according to claim 1, wherein: The upper edge of the transmission upper shell (218) is provided with a waterproof groove (2172) which surrounds the upper edge of the transmission upper shell (218).

3. The electric trolley concentric structure according to claim 1, wherein: The lower surface of the wire baffle (219) is provided with a connecting rod (2191), and the inner bottom wall of the transmission lower shell (217) is provided with a connecting hole (2173) corresponding to the connecting rod (2191).

4. The electric trolley upper and lower concentric structure according to claim 3, characterized in that: The connecting hole (2173) protrudes from the inner bottom wall of the transmission lower shell (217), and a wire passing channel (2174) is formed between the lower surface of the wire baffle (219) and the inner bottom wall of the transmission lower shell (217).

5. The electric trolley concentric structure according to claim 1, wherein: The wire baffle (219) is provided with a through hole (2192) for the transmission assembly (22) to pass through.

6. The electrically powered push rod concentric structure according to claim 1, wherein: The telescopic structure (3) comprises a telescopic shell (31) and a telescopic assembly (32), the telescopic shell (31) is wrapped outside the telescopic assembly (32) and is connected to the lower end of the transmission lower shell (217).

7. The electrically powered push rod concentric structure according to claim 1, wherein: The positioning column (2171) is three, which are respectively arranged at three end points on the top of the transmission lower shell (217), and the three end points form a triangular structure.

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