High thrust reciprocating propulsion device

Abstract

The present invention provides a high-thrust reciprocating propulsion device, which belongs to the field of driving equipment and includes a frame assembly as a carrier for installing other components; a propulsion rod assembly, including a propulsion rod, which is provided with a push rod that moves forward and backward relative to the axial direction of the frame, moves forward to push two parts connected to it, and moves backward to reset; a propulsion assembly, which is arranged at the rear end of the frame assembly and drives the propulsion rod to move forward; a locking and unlocking assembly, which is arranged inside the frame assembly and in the middle of the propulsion rod, realizes the locking of the propulsion rod and resets the propulsion rod. The present invention has a toothed propulsion rod, which can achieve high thrust and reliable locking.

Description

Technical Field

[0001] The invention belongs to the field of driving equipment, and relates to a driving structure capable of reciprocating motion, and in particular to a high-thrust reciprocating propulsion device. Background Art

[0002] Reciprocating motion devices are widely used in various industries, among which the most typical one is the reciprocating motion device of glue guns. The device mainly relies on the operator to press the handle to push the driving rod forward, and to release the lock by pressing the unlocking button. Usually, due to the use occasion and cost considerations, this type of reciprocating propulsion device uses a friction plate to realize the propulsion of the propulsion rod. At the same time, its unlocking button is designed at the rear end of the device, and it needs to be operated with both hands when unlocking.

[0003] The patent "Feeding device for glue gun" (CN200820043168.0) proposes a typical feeding device for glue guns, which adopts a friction propulsion and locking structure design. In situations where a large thrust is required, the reliability is low, and the unlocking device is located at the rear end of the tool, which is not conducive to one-handed operation. Summary of the invention

[0004] The problem to be solved by the present invention is to provide a high-thrust reciprocating propulsion device which can achieve high thrust and reliable locking.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a large-thrust reciprocating propulsion device includes a frame assembly as a carrier for installing other components;

[0006] A push rod assembly includes a push rod, which is provided with a push rod that moves forward and backward relative to the axial direction of the frame, moves forward to push two parts connected thereto, and moves backward to reset;

[0007] A propulsion assembly, disposed at the rear end of the frame assembly, driving the propulsion rod to move forward;

[0008] The locking and unlocking assembly is arranged inside the frame assembly and in the middle of the propulsion rod to achieve locking and resetting of the propulsion rod.

[0009] Furthermore, the frame assembly includes a frame, a support sleeve and a spring limit block. The number of the support sleeves is multiple. The support sleeves are provided at the front and rear ends of the frame to support the propulsion rod and the two slide relative to each other. The spring limit block fixes and limits the end of the propulsion return spring away from the locking and unlocking assembly.

[0010] Furthermore, the push rod assembly also includes a push return spring, a spring stop and a limit plug. The spring stop is fixed on the push rod, the push return spring is arranged between the spring limit block and the spring stop, and the limit plug is arranged at the rear end of the push rod to provide a travel limit for the push rod assembly.

[0011] Furthermore, the propulsion assembly includes a movable handle, a fixed handle, a return spring, a paddle, a paddle shaft and a movable handle shaft. The fixed handle is fixedly arranged at the rear end of the frame assembly. The movable handle is connected to the fixed handle through the movable handle shaft. The movable handle is the operation input part of the entire propulsion device. The paddle is connected to the fixed handle through the paddle shaft. The paddle cooperates with the tooth groove on the propulsion rod to complete the propulsion movement. The return spring provides a restoring force for the paddle.

[0012] Furthermore, the locking and unlocking assembly includes a locking plate, a locking plate mounting block and a locking plate rotating shaft, wherein the locking plate is connected to the locking plate mounting block through the locking plate rotating shaft, the locking plate mounting block is connected to the frame, and the rear end of the push rod is designed with a toothed groove, and the shape of the locking plate matches the toothed groove shape of the push rod to achieve locking of the push rod assembly.

[0013] Furthermore, the locking and unlocking assembly also includes a locking plate return spring, a trigger and a trigger shaft. The locking plate return spring is installed between the locking plate shaft and the locking plate mounting block to provide a restoring force for the locking plate; the trigger is connected to the frame through the trigger shaft.

[0014] Compared with the prior art, the present invention has the following advantages and positive effects.

[0015] The present invention adopts a propulsion method in which a paddle and a tooth groove cooperate to realize a propulsion movement with a large thrust, and adopts a locking method in which a locking plate and a tooth groove cooperate to realize reliable locking. The unlocking device moves forward to realize one-handed operation, which is convenient and quick, making it more in line with ergonomic requirements, and making the return reset operation more convenient, which is conducive to one-handed operation, occupies little space, and ensures equipment maintenance in a small space. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 is a cross-sectional view of a high-thrust reciprocating propulsion device of the present invention;

[0018] Figure 2 is another cross-sectional view of the high-thrust reciprocating propulsion device of the present invention;

[0019] Figure 3 It is a schematic diagram of the layout of the support sleeve of the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the propulsion and locking and unlocking of the present invention;

[0021] Figure 5It is a structural schematic diagram of the tooth groove on the propulsion rod of the present invention.

[0022] Reference numerals:

[0023] 10-frame assembly; 11-frame, 12-support sleeve, 13-spring limit block; 20-advance rod assembly; 21-advance rod, 22-advance return spring, 23-spring stopper, 24-limit plug; 30-advance assembly; 31-movable handle, 32-fixed handle, 33-reset spring, 34-paddle, 35-paddle shaft, 36-movable handle shaft; 40-locking and unlocking assembly; 41-locking plate, 42-locking plate mounting block, 43-locking plate shaft, 44-locking plate reset spring, 45-trigger, 46-trigger shaft, 47-limit block. DETAILED DESCRIPTION

[0024] It should be noted that, without any particular exception, the embodiments of the present invention and the features therein may be combined with each other.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0027] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-Figure 5As shown, the present invention is a high-thrust reciprocating propulsion device, which includes a fixing frame assembly 10, a propulsion rod assembly 20, a propulsion assembly 30 and a locking and unlocking assembly 40.

[0029] The frame assembly 10 provides an installation basis for the propulsion rod assembly 20, the propulsion assembly 30 and the locking and unlocking assembly 40. The frame assembly 10 mainly includes a frame 11, a support sleeve 12 and a spring stopper 13. The support sleeve 12 is used to support the propulsion rod assembly 20 and provide it with axial freedom of movement. The spring stopper 13 provides a limit structure for the propulsion reset spring 22.

[0030] The propulsion rod assembly 20 is the main actuating part of the entire propulsion device, and mainly includes four parts: a propulsion rod 21, a propulsion return spring 22, a spring stopper 23, and a limit plug 24; wherein the propulsion rod 21 is designed with a toothed groove, which cooperates with the propulsion assembly 30 and the locking and unlocking assembly 40 to complete the propulsion function and the locking function; the propulsion return spring 22 provides the restoring force required for the propulsion assembly to return; the spring stopper 23 and the spring limit block 13 jointly provide a limit for the reset spring 22; the limit plug 24 provides a travel limit for the propulsion rod assembly.

[0031] The propulsion assembly 30 is the main assembly for realizing the propulsion function of the propulsion device; the propulsion assembly 30 mainly includes six parts, namely, a movable handle 31, a fixed handle 32, a return spring 33, a paddle 34, a paddle shaft 35, and a movable handle shaft 36. The movable handle 31 is connected to the fixed handle 32 through the movable handle shaft 36, and the movable handle is the operation input part of the entire propulsion device; the paddle 34 is connected to the fixed handle 32 through the paddle shaft 35, and the paddle 34 cooperates with the tooth groove on the propulsion rod 21 to complete the propulsion movement; the return spring 33 provides a restoring force for the paddle 34.

[0032] The locking and unlocking assembly 40 mainly includes a locking plate 41, a locking plate mounting block 42, a locking plate rotating shaft 43, a locking plate reset spring 44, a trigger 45, and a trigger rotating shaft 46; wherein the locking plate 41 is connected to the locking plate mounting block 42 through the locking plate rotating shaft 43, and the locking plate mounting block 42 is connected to the frame 11, and the shape of the locking plate 41 matches the tooth groove shape of the propulsion rod 21 to achieve the locking of the propulsion rod assembly 20; the locking plate reset spring 44 is installed between the locking plate rotating shaft 43 and the locking plate mounting block 42 to provide a restoring force for the locking plate 41; the trigger 45 is connected to the frame 11 through the trigger rotating shaft 46.

[0033] The frame assembly 10 is the foundation of the entire propulsion device, providing installation interfaces and support foundations for various parts; the frame assembly 10 is designed with a support sleeve 12 and a spring limit block 13, and the corresponding interfaces of the support sleeve 12 and the frame 11 are connected by screws, etc. The spring limit block 13 can adjust the position according to the required restoring force to adjust the compression length of the propulsion return spring 22 and adjust the restoring force; the propulsion rod 21 in the propulsion assembly 20 passes through the support sleeve 12 and is connected to the frame assembly 10, one end of the propulsion return spring 22 is connected to the spring limit block 13, and the other end is connected to the spring stop block 23. Similarly, the spring stop block 23 is inserted into the propulsion rod 21 and connected by screws, etc., and its position is adjustable; the propulsion assembly 30 is connected to the frame assembly through a fixed handle 32, and the movable handle 31 is connected to the fixed handle The hand 32 is connected through the movable handle shaft 36 and can realize relative rotation. At the same time, the paddle 34 is connected to the movable handle 31 through the paddle shaft 35, and the paddle 34 has an oblong hole feature; the paddle 34 and the tooth groove of the push rod 21 can realize engagement and engagement; the locking and unlocking assembly 40 includes a locking function and an unlocking function, the locking plate 41 is installed on the locking plate mounting block 42 through the locking plate shaft 43, and the locking plate mounting block 42 can be connected to the frame assembly 10 by screws, and the locking return spring 44 is installed between the locking plate shaft 43 and the locking plate mounting block 42; the trigger 45 is installed on the frame assembly through the trigger shaft 46, and the swing of the trigger can cause the locking plate to swing to achieve unlocking; the limit block 47 is connected to the frame assembly 10 by screws or the like to limit the travel of the locking plate 41.

[0034] The main process of the reciprocating propulsion device operation is as follows:

[0035] like Figure 1 , Figure 2 As shown, the leftmost end of the output end of the push rod 21 in the figure can be connected to the required operating parts according to actual needs, such as a hook, a push rod, etc. The operator presses the movable handle 31 to rotate it around the movable handle shaft 36, and at the same time, the paddle 34 is moved to swing around the paddle shaft 35. During the swinging process, it alternately engages and meshes with the tooth groove of the push rod 21, pushing the push rod 21 forward. At the same time, the teeth of the push rod 21 push the locking plate 41 to swing. Under the action of the locking reset spring 44, the locking plate 41 also engages and meshes to achieve the locking of the push rod after advancing. In this way, the advancement and locking of the push rod are achieved; when the push rod 21 moves to the right position, the trigger 45 is pulled, and the trigger 45 prompts the locking plate 34 to swing and mesh out of the tooth groove of the push rod, and the push rod returns to the initial position under the action of the push reset spring 22. The whole process can be completed by one-handed operation.

[0036] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A high-thrust reciprocating propulsion device, used for equipment maintenance in a narrow space, characterized by: It includes a rack assembly, which serves as a carrier for mounting other components; A push rod assembly includes a push rod, which is provided with a push rod that moves forward and backward relative to the axial direction of the frame, moves forward to push two parts connected thereto, and moves backward to reset; A propulsion assembly, disposed at the rear end of the frame assembly, driving the propulsion rod to move forward; A locking and unlocking assembly is arranged inside the frame assembly and in the middle of the propulsion rod to achieve locking and resetting of the propulsion rod; The propulsion assembly comprises a movable handle, a fixed handle, a return spring, a paddle, a paddle shaft and a movable handle shaft. The fixed handle is fixedly arranged at the rear end of the frame assembly. The movable handle is connected to the fixed handle through the movable handle shaft. The movable handle is the operation input part of the entire propulsion device. The paddle has an oblong hole. The paddle is connected to the fixed handle through the paddle shaft. The paddle cooperates with the tooth groove on the propulsion rod to complete the propulsion movement. The return spring provides a restoring force for the paddle. The locking and unlocking assembly includes a locking plate, a locking plate mounting block and a locking plate rotating shaft, wherein the locking plate is connected to the locking plate mounting block through the locking plate rotating shaft, the locking plate mounting block is connected to the frame, and a toothed groove is designed at the rear end of the propulsion rod, and the shape of the locking plate matches the toothed groove shape of the propulsion rod to achieve locking of the propulsion rod assembly; The locking and unlocking assembly also includes a locking plate reset spring, a trigger and a trigger shaft. The locking plate reset spring is installed between the locking plate shaft and the locking plate mounting block to provide a restoring force for the locking plate. The trigger is connected to the frame through the trigger shaft. When the push rod moves to the right position, pull the trigger, the trigger makes the locking plate swing out of the tooth groove of the push rod, and the push rod returns to the initial position under the action of the push return spring, and the one-handed operation is completed.

2. The high-thrust reciprocating propulsion device according to claim 1, characterized in that: The frame assembly includes a frame, a support sleeve and a spring limit block. There are multiple support sleeves. The support sleeves are provided at the front and rear ends of the frame to support the propulsion rod and the two slide relative to each other. The spring limit block fixes and limits the end of the propulsion return spring away from the locking and unlocking assembly.

3. The high-thrust reciprocating propulsion device according to claim 2, characterized in that: The push rod assembly also includes a push return spring, a spring stopper and a limit plug. The spring stopper is fixed on the push rod, the push return spring is arranged between the spring limit block and the spring stopper, and the limit plug is arranged at the rear end of the push rod to provide a travel limit for the push rod assembly.

Images