Semi-external spring push-pull device

Abstract

The utility model discloses a semi-external spring push-puller, which comprises a core column, a base plate, a return spring and an adjusting terminal, one end of the core column is fixed on the base plate, the other end of the core column is fixed with the adjusting terminal after penetrating out of a shell, and the return spring is sleeved outside the core column. One end of the core column is in threaded connection with the base plate located in the shell, the other end of the core column is screwed through the adjusting terminal located outside the shell in a threaded mode, the return spring is arranged outside the core column in a sleeved mode, and therefore the length of the core column screwed into the adjusting terminal can be controlled according to the size of the shell and the size of the lock rod. And the return spring with the stretching elastic tendency can be matched with the base plate and the adjusting terminal to clamp the lock rod and the shell and replace a torsional spring to achieve return of the lock rod, the external adjusting terminal facilitates holding and drawing of an overhauling worker and indirectly controls the lock rod, and the overhauling safety can be effectively improved.

Description

[Technical field]

[0001] The utility model relates to the technical field of return mechanisms, in particular to the technical field of semi-external spring push-pull devices. [Background technology]

[0002] A diesel engine is an engine that burns diesel to release energy, such as the 12-cylinder water-cooled diesel engine disclosed in the invention with publication number CN106224094A and a diesel engine disclosed in the invention with publication number CN116324141B. Diesel engines have the characteristics of large torque, high thermal efficiency and good economic performance, and are usually used in mobile equipment or transportation tools (such as vans, trucks, forklifts, cranes, well repair equipment, drilling rigs, excavators, portable generators and welding trucks), emergency vehicles (such as fire trucks and ambulances) and small processing equipment (such as lawn mowers, blowers, generators, compressors, welders and pumps).

[0003] The valve is a switch controller, usually including a valve plate that can regulate the cutting and opening of the diesel engine pipeline and a locking mechanism (built-in lock head and lock rod) that can lock the position of the valve plate. Among them, the lock rod is usually directly reset by a torsion spring, which is not only inconvenient to disassemble and replace later, but also makes it impossible for maintenance personnel to manually operate and check the lock rod directly from the outside, which poses certain safety hazards. [Contents of the utility model]

[0004] The purpose of the utility model is to solve the problems in the prior art and to propose a semi-external spring push-pull device, which is easy to disassemble and replace, and the external adjustment terminal is convenient for maintenance workers to hold and pull and indirectly control the locking rod, which can effectively improve the maintenance safety.

[0005] To achieve the above-mentioned purpose, the utility model proposes a semi-external spring push-pull device, including a core column, a pad, a return spring and an adjustment terminal, one end of the core column is fixed on the pad and the other end is fixed to the adjustment terminal after passing through the shell, and the return spring is sleeved outside the core column.

[0006] Preferably, the return spring has an elastic tendency to stretch so that one end thereof and the backing plate clamp the locking rod together and the other end thereof and the adjusting terminal clamp the housing together.

[0007] Preferably, the pad is covered with a shock-absorbing rubber sleeve.

[0008] Preferably, a shock-absorbing rubber pad is provided on the side of the adjustment terminal facing the housing.

[0009] Preferably, one end of the core column is threaded into the backing plate and the other end is threaded through the adjustment terminal.

[0010] Preferably, a rotation-stopping terminal is further included, wherein the rotation-stopping terminal is threadedly connected to the core column and is located on a side of the adjusting terminal away from the return spring.

[0011] Preferably, the adjacent surfaces of the adjusting terminal and the anti-rotation terminal are respectively provided with adjusting teeth and anti-rotation teeth, and the adjusting teeth and anti-rotation teeth can engage with each other to limit the adjusting terminal or the anti-rotation terminal from being screwed out of the core column alone.

[0012] Preferably, outer walls of the adjusting terminal and the anti-rotation terminal are respectively provided with anti-slip textures.

[0013] Beneficial effects of the utility model:

[0014] 1) One end of the stem is threadedly connected to the backing plate located inside the housing, and the other end of the stem is threadedly screwed through the adjusting terminal located outside the housing. The return spring is sleeved outside the stem, so that the length of the stem into which the adjusting terminal is screwed can be controlled according to the size of the housing and the locking rod, until the return spring with an elastic tendency to stretch can respectively cooperate with the backing plate and the adjusting terminal to clamp the locking rod and the housing and replace the torsion spring to realize the return of the locking rod. The external adjusting terminal is convenient for maintenance workers to hold and pull and indirectly control the locking rod, which can effectively improve the maintenance safety;

[0015] 2) By covering the pad with a shock-absorbing rubber sleeve and adding a shock-absorbing rubber pad on the side of the adjustment terminal facing the housing, the shock-absorbing rubber sleeve and the shock-absorbing rubber pad can effectively reduce the damage to the pad and the adjustment terminal caused by the collision, and can also reduce the impact sound to a certain extent;

[0016] 3) By threading the anti-rotation terminal located on the side of the adjusting terminal away from the return spring outside the core column, and respectively adding adjusting teeth and anti-rotation teeth on the adjacent surfaces of the adjusting terminal and the anti-rotation terminal, the engagement between the adjusting teeth and the anti-rotation teeth can be utilized to prevent the adjusting terminal or the anti-rotation terminal from actively falling out of the core column due to vibration or the like.

[0017] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

[0018] Figure 1 This is a working schematic diagram of the semi-external spring push-pull device of the utility model;

[0019] Figure 2 The utility model is an exploded schematic diagram of a semi-external spring push-pull device.

[0020] In the figure: 11-locking rod, 13-semi-external spring push-pull device, 131-core column, 132-backing plate, 133-return spring, 134-adjusting terminal, 1341-adjusting tooth, 135-stop terminal, 1351-stop tooth, 14-housing. [Specific implementation method]

[0021] See also Figure 1 and Figure 2 The semi-external spring push-pull device of the utility model comprises a core column 131, a pad 132, a return spring 133 and an adjustment terminal 134. One end of the core column 131 is fixed on the pad 132 and the other end is fixed to the adjustment terminal 134 after passing through the housing 14. The return spring 133 is sleeved outside the core column 131.

[0022] The return spring 133 has an elastic tendency to stretch so that one end thereof and the backing plate 132 clamp the locking rod 11 together, and the other end and the adjusting terminal 134 clamp the housing 14 together.

[0023] The pad 132 is covered with a shock-absorbing rubber sleeve.

[0024] A shock-absorbing rubber pad is provided on one side of the adjustment terminal 134 facing the housing 14 .

[0025] One end of the core column 131 is threaded into the backing plate 132 and the other end is threaded through the adjustment terminal 134 .

[0026] The anti-rotation terminal 135 is also included. The anti-rotation terminal 135 is threadedly connected to the stem 131 and is located on a side of the adjustment terminal 134 away from the return spring 133 .

[0027] The adjacent surfaces of the adjusting terminal 134 and the stopping terminal 135 are respectively provided with adjusting teeth 1341 and stopping teeth 1351, and the adjusting teeth 1341 and the stopping teeth 1351 can be engaged with each other to limit the adjusting terminal 134 or the stopping terminal 135 from being screwed out of the core column 131 alone.

[0028] The outer walls of the adjusting terminal 134 and the anti-rotation terminal 135 are respectively provided with anti-slip textures.

[0029] Working process of this utility model:

[0030] Before use, the backing plate 132 and the return spring 133 are respectively placed in the inner cavity of the housing 14. Then, one end of the stem 131 is screwed into the backing plate 132 after passing through the housing 14, the return spring 133 and the locking rod 11 in sequence, and then the adjustment terminal 134 and the anti-rotation terminal 135 are screwed on the end of the stem 131 exposed outside the housing 14 in sequence.

[0031] During operation, the lock rod 11 can indirectly support the housing 14 through the pad 132 under the push of the return spring 133 (that is, the return spring 133 can replace the torsion spring to achieve the return function). In addition, if maintenance is required, the maintenance personnel can also directly hold and pull the adjustment terminal 134 and the anti-rotation terminal 135 outside the housing 14 to drive the lock rod 11 to move and complete the unlocking function between the lock rod 11 and the lock head.

[0032] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. Semi-external spring push-pull device, characterized by: It comprises a core column (131), a backing plate (132), a return spring (133) and an adjustment terminal (134); one end of the core column (131) is fixed on the backing plate (132) and the other end is fixed to the adjustment terminal (134) after passing through the housing (14); and the return spring (133) is sleeved outside the core column (131).

2. The semi-external spring push-pull device according to claim 1, characterized in that: The return spring (133) has an elastic tendency to stretch and enables one end thereof to clamp the locking rod (11) together with the backing plate (132) and the other end thereof to clamp the housing (14) together with the adjusting terminal (134).

3. The semi-external spring push-pull device according to claim 2, characterized in that: The pad (132) is coated with a shock-absorbing rubber sleeve.

4. The semi-external spring push-pull device according to claim 2, characterized in that: A shock-absorbing rubber pad is provided on the side of the adjustment terminal (134) facing the housing (14).

5. The semi-external spring push-pull device according to claim 1, characterized in that: One end of the core column (131) is threaded into the backing plate (132) and the other end is threaded through the adjustment terminal (134).

6. The semi-external spring push-pull device according to claim 5, characterized in that: It also includes a rotation-stopping terminal (135), which is threadedly connected to the core column (131) and is located on a side of the adjustment terminal (134) away from the return spring (133).

7. The semi-external spring push-pull device according to claim 6, characterized in that: The adjacent surfaces of the adjusting terminal (134) and the anti-rotation terminal (135) are respectively provided with adjusting teeth (1341) and anti-rotation teeth (1351), and the adjusting teeth (1341) and the anti-rotation teeth (1351) can be engaged with each other to limit the adjusting terminal (134) or the anti-rotation terminal (135) from being screwed out of the core column (131) alone.

8. The semi-external spring push-pull device according to claim 7, characterized in that: The outer walls of the adjusting terminal (134) and the anti-rotation terminal (135) are respectively provided with anti-slip textures.

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