Small electric push rod

Abstract

The utility model discloses a small-sized electric push rod, which belongs to the technical field of electric push rods and comprises two groups of mounting shells which are connected through bolts, and motors, speed reducers, screw rod assemblies, fixed cylinders and sectional type flexible flat cables which are mounted in the mounting shells, the end, away from the lead screw assembly, of the telescopic cylinder is in threaded connection with a lifting lug, a wire buckle is installed on one side of the inner wall of the installation shell, a wire is installed on the wire buckle, and the wire penetrates through the wire buckle to make contact with the sectional type flexible flat cable. The motor is mounted in inner grooves of the mounting shells, two clamping ends are arranged on the inner walls of the two inner grooves, two clamping protrusions are arranged on the inner walls of the two mounting shells, and clamping grooves matched with the clamping protrusions are formed in the end, close to the motor, of the fixed barrel. According to the small electric push rod, the stability between the motor and the fixed cylinder in the operation process is improved, and the stable operation effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric push rod technical field especially relates to a small -size electric push rod. BACKGROUND

[0002] Electric push rod is a kind of electric power drive device that the rotary motion of motor is changed into the linear reciprocating motion of push rod.It can be used as execution machinery in various simple or complex process to realize remote control, centralized control or automatic control.

[0003] The traditional electric push rod often keeps the stability of push-out state by built-in spring piece to keep the stability of push-out state, but often ignores the vibration generated by motor operation process itself, which will also affect the electric push rod. UTILITY MODEL CONTENTS

[0004] In order to overcome the defects of prior art, the technical problem to be solved by the utility model is to provide a small -size electric push rod that improves the stability between motor and fixed cylinder during operation process and guarantees stable operation effect.

[0005] To achieve this purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a small -size electric push rod, including two groups of installation shell connected by bolt and motor, reduction gear, screw rod assembly, fixed cylinder and sectional soft cable installed in installation shell, the telescopic cylinder body is installed on the screw rod assembly, the lug is screwed on the end of telescopic cylinder body away from screw rod assembly, the wire buckle is installed on one side of the inner wall of installation shell, the wire is installed on the wire buckle, the wire passes through wire buckle and contacts sectional soft cable;

[0007] The motor is installed in the inner groove of installation shell, two groups of clamping ends are arranged on the inner wall of two groups of inner grooves, two groups of clamping protrusions are arranged on the inner wall of two groups of installation shell, and the clamping groove matched with the clamping protrusion is arranged on the end of the fixed cylinder body close to the motor.

[0008] The utility model preferably provides the technical scheme in that the end of the fixed cylinder body away from the motor is clamped and installed with the cover, and the telescopic cylinder body is slidably connected with the cover through the fixed cylinder body.

[0009] The utility model preferably provides the technical scheme in that the reduction gear includes the installation support installed in the inside of installation shell, the driving gear is installed on the installation support through the rotating shaft, the driving gear is provided with the reduction gear set in meshing, the rotating shaft is fixedly connected with the motor driving shaft, and the rotating shaft on the reduction gear set is connected with the screw rod assembly.

[0010] The utility model discloses preferably technical scheme lies in, the mounting support includes three groups of mounting plate, and three groups mounting plate between be provided with the connecting barrel, and are connected through bolt fixedly.

[0011] The utility model discloses preferably technical scheme lies in, the screw rod subassembly includes with the fixed connection of screw rod of pivot, the screw rod is screwed with special nut, special nut and telescopic cylinder body one end fixed connection, telescopic cylinder body cover sets up in the outside of screw rod, install metal contact on special nut, metal contact and segmented flexible flat cable contact.

[0012] The utility model discloses preferably technical scheme lies in, the segmented flexible flat cable bottom is equipped with limit hole, and limit hole and the connecting convex of motor bottom are adapted.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The utility model discloses through being provided with the carding end and the clamping convex in the installation shell inside, makes the carding end from both sides and hold motor, and every group installation shell inside is provided with two groups, reduces the vibration of motor in the working process, improves the stability of motor, through the cooperation of the clamping convex and the clamping groove of fixed cylinder body both sides, improved the firmness of fixed cylinder body in the installation shell, thereby improved the stability and use effect of the whole electric push rod use process, set up segmented flexible flat cable simultaneously, make it can according to the demand of customer, adapts multiple specifications to use, and the scope of application is wide. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the electric push rod structure schematic diagram provided in the embodiment of the utility model;

[0016] Figure 2 It is the electric push rod structure explosion drawing provided in the embodiment of the utility model;

[0017] Figure 3 It is the electric push rod installation schematic diagram provided in the embodiment of the utility model;

[0018] Figure 4 It is the speed reducer and screw rod subassembly structure schematic diagram provided in the embodiment of the utility model;

[0019] Figure 5 It is the segmented flexible flat cable structure schematic diagram provided in the embodiment of the utility model.

[0020] In the drawings, the component list represented by each sign is as follows:

[0021] 1, installation shell; 11, clamping protrusion; 12, inner groove; 13, clamping end; 2, fixed cylinder; 21, cover; 22, clamping groove; 3, motor; 31, connecting protrusion; 4, speed reducer; 41, drive gear; 42, speed reduction gear set; 43, mounting bracket; 5, wire buckle; 51, wire; 6, screw assembly; 61, screw; 62, special-shaped nut; 63, telescopic cylinder; 64, metal contact; 7, sectional flexible flat cable; 8, lifting lug; 9, bolt. DETAILED DESCRIPTION

[0022] The technical scheme of the utility model is further illustrated below in combination with the drawings and through specific embodiments.

[0023] A small electric push rod comprises two groups of installation shells 1 connected through bolts 9 and a motor 3, a speed reducer 4, a screw assembly 6, a fixed cylinder 2 and a sectional flexible flat cable 7 installed inside the installation shell 1, the screw assembly 6 is provided with a telescopic cylinder 63, the telescopic cylinder 63 is provided with a lifting lug 8 at one end away from the screw assembly 6, the installation shell 1 is provided with a wire buckle 5 on one side of the inner wall, the wire buckle 5 is provided with a wire 51, the wire 51 passes through the wire buckle 5 and contacts the sectional flexible flat cable 7, the fixed cylinder 2 and the telescopic cylinder 63 are both hollow aluminum pipes.

[0024] The motor 3 is installed in the inner groove 12 of the installation shell 1, two groups of clamping ends 13 are arranged on the inner walls of the two groups of inner grooves 12, and two groups of clamping protrusions 11 are arranged on the inner walls of the two groups of installation shells 1, and the fixed cylinder 2 is provided with a clamping groove 22 adapted to the clamping protrusion 11 at one end close to the motor 3.

[0025] During installation, the motor 3 is installed in one group of inner grooves 12 of the installation shell 1 and abuts against the clamping end 13, at the same time, the clamping groove 22 on the fixed cylinder 2 is aligned with the two groups of clamping protrusions 11 on the inner wall of the installation shell 1 for installation, so that the clamping groove 22 is clamped on the clamping protrusion 11, and the other group of installation shells 1 is installed in the same way on the previous group of installation shells 1 and is fixed through the bolt 9, the clamping end 13 on the two groups of installation shells 1 tightly holds the motor 3 from both sides, so as to reduce the vibration of the motor 3 during operation, and the clamping groove 22 on the fixed cylinder 2 cooperates with the clamping protrusion 11, which improves the firmness of the fixed cylinder 2 installed in the installation shell 1, thereby improving the stability and use effect of the entire electric push rod during use; the sectional flexible flat cable 7 structure includes but is not limited to the splicing of two groups of straight flexible flat cables or the splicing structure in the attached Figure 5 The sectional flexible flat cable 7 can adapt to various specifications for use, has high adaptability, can effectively reduce the inventory pressure of the flexible flat cable for use, can be customized according to the needs of customers, and can be installed and used, so the application range is wide.

[0026] As a possible implementation of the present scheme, preferably, the fixed cylinder 2 is fitted with a cover 21 at one end away from the motor 3, and the telescopic cylinder 63 is slidingly connected to the cover 21 through the fixed cylinder 2. The cover 21 can effectively limit the movement of the telescopic cylinder 63, further improving the stability of the telescopic cylinder 63 during use.

[0027] As a possible implementation of the present scheme, preferably, the speed reducer 4 comprises a mounting bracket 43 mounted inside the mounting shell 1, a drive gear 41 is mounted on the mounting bracket 43 through a rotating shaft, the drive gear 41 is provided with a speed reduction gear set 42, the rotating shaft is fixedly connected with the drive shaft of the motor 3, and the rotating shaft on the speed reduction gear set 42 is connected with the lead screw assembly 6. The mounting bracket 43 comprises three sets of mounting plates, a connecting cylinder is arranged between the three sets of mounting plates, and the connecting cylinder is fixedly connected through bolts 9. The drive gear 41 is driven by the motor 3, the rotating speed generated by the drive gear 41 is reduced through the cooperation of the speed reduction gear set 42, and then transmitted to the lead screw assembly 6, so that the speed is adapted to the use speed of the electric push rod. At the same time, the lead screw assembly 6 is driven to move the telescopic cylinder 63, so that the rotation of the motor 3 is converted into a long-distance linear motion.

[0028] As a possible implementation of the present scheme, preferably, the lead screw assembly 6 comprises a lead screw 61 fixedly connected with the rotating shaft, a special-shaped nut 62 is screwed on the lead screw 61, the special-shaped nut 62 is fixedly connected with one end of the telescopic cylinder 63, the telescopic cylinder 63 is sleeved outside the lead screw 61, a metal contact 64 is mounted on the special-shaped nut 62, and the metal contact 64 is in contact with the segmented flexible flat cable 7.

[0029] The motor 3 drives the speed reducer 4 to rotate, the speed reducer 4 drives the lead screw 61 to rotate, and under the cooperation of the lead screw 61 and the special-shaped nut 62, the special-shaped nut 62 drives the telescopic cylinder 63 to move linearly inside the fixed cylinder 2, so as to convert the rotary motion into a long-distance linear motion.

[0030] As a possible implementation of the present scheme, preferably, a limiting hole is formed in the bottom of the segmented flexible flat cable 7, and the limiting hole is matched with the connecting protrusion 31 at the bottom of the motor 3. Through the cooperation of the limiting hole and the connecting protrusion 31, the stability of the segmented flexible flat cable 7 in the mounting shell 1 is effectively improved.

[0031] The utility model is described through preferred embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. The utility model is not limited by the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of the present application belong to the scope of protection of the utility model.

Claims

1. A compact electric push rod characterized by: The utility model relates to a kind of small electric trolley, including two groups of installation shell (1) connected by bolt (9) and motor (3) installed in installation shell (1) inside, reduction gear (4), screw rod assembly (6), fixed cylinder (2) and sectional flexible cable (7), the telescopic cylinder (63) is installed on the screw rod assembly (6), the lug (8) is screwed at the end of telescopic cylinder (63) away from screw rod assembly (6), wire buckle (5) is installed in the inner wall of installation shell (1) one side, wire (51) is installed on wire buckle (5), wire (51) passes through wire buckle (5) and contacts with sectional flexible cable (7); The motor (3) is installed in the inner groove (12) of the installation shell (1), two groups of the inner wall of the inner groove (12) are provided with two groups of clamping ends (13), and two groups of the inner wall of the installation shell (1) are provided with two groups of clamping protrusions (11). The fixed cylinder (2) is provided with a clamping groove (22) close to the motor (3) end, which is matched with the clamping protrusion (11).

2. The small electric trolley according to claim 1, characterized in that: The fixed cylinder (2) is clamped and installed with a cover (21) away from the motor (3) end, and the telescopic cylinder (63) is slidably connected with the cover (21) through the fixed cylinder (2).

3. The small electric trolley according to claim 1, characterized in that: The reduction gear (4) includes an installation support (43) installed inside the installation shell (1), a drive gear (41) is installed on the installation support (43) through a rotating shaft, the drive gear (41) is provided with a reduction gear set (42) in meshing, the rotating shaft is fixedly connected with the motor (3) drive shaft, and the rotating shaft on the reduction gear set (42) is connected with the screw rod assembly (6).

4. The small electric trolley according to claim 3, characterized in that: The installation support (43) includes three installation plates, a connecting cylinder is arranged between the three installation plates, and the connecting cylinder is fixedly connected through the bolt (9).

5. The small electric trolley according to claim 1, characterized in that: The screw rod assembly (6) includes a screw rod (61) fixedly connected with the rotating shaft, a special-shaped nut (62) is screwed on the screw rod (61), the special-shaped nut (62) is fixedly connected with one end of the telescopic cylinder (63), the telescopic cylinder (63) is sleeved outside the screw rod (61), a metal contact (64) is installed on the special-shaped nut (62), and the metal contact (64) contacts with the sectional flexible cable (7).

6. The small electric trolley according to claim 1, characterized in that: The sectional flexible cable (7) is provided with a limiting hole at the bottom, and the limiting hole is matched with the connecting protrusion (31) at the bottom of the motor (3).

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