Electromagnetic valve external tightening gland and tightening tool

Abstract

An electromagnetic valve external tightening gland and a tightening tool belong to the technical field of vehicle vibration damping, the electromagnetic valve external tightening gland comprises a gland with a clamping platform arranged on the outer wall, the tightening tool is adopted to externally tighten the gland to a vibration damper, and a foundation is provided for observing whether a clamp spring is accurately installed or not by changing the assembly sequence; the problem that connection between the electromagnetic valve and the shock absorber is likely to be loosened due to the fact that the installation quality of the clamping spring is unstable is effectively solved, the gland and the tightening tool are simple in structure, the assembling method is convenient and fast to operate, and stable connection between the electromagnetic valve and the shock absorber is effectively achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of vehicle damping, especially relates to the connection of solenoid valve and shock absorber of solenoid valve shock absorber, and specifically relates to a solenoid valve outer tightening gland and tightening tool. BACKGROUND

[0002] With the development of science and technology and the improvement of people's living standards, the previous private passenger cars have gradually been difficult to meet people's needs, people gradually accept the change brought by intelligentization, and the requirements for intelligent driving and comfort are higher and higher, and traditional suspensions and traditional shock absorbers cannot meet the current needs, and instead, the demand for intelligent suspensions and intelligent shock absorbers is increasing. In terms of the current design and structure of intelligent suspensions and intelligent shock absorbers, according to the working principle, the intelligent suspension and the intelligent shock absorber need the solenoid valve to provide damping force for adjustment and control, the solenoid valve shock absorber combines the mechanical structure of the traditional shock absorber and the intelligent response ability of the electromagnetic control system, realizes the intelligent dynamic adjustment of the damping force, and has shown significant advantages in the field of automobiles.

[0003] At present, the connection structure of the solenoid valve and the shock absorber is that the coil of the solenoid valve is connected with the hydraulic cylinder assembly of the shock absorber, the coil of the solenoid valve is fixed on the valve seat, the connection part of the coil and the hydraulic cylinder assembly is protected by the gland, the coil is fixed by clamping the gland through the snap spring, and the gland is screw-connected with the valve seat. The current assembly sequence is that the gland is screwed and assembled on the hydraulic cylinder assembly of the shock absorber under the cooperation of the installation hole, then the solenoid valve coil is assembled and pressed into the solenoid valve gland with the snap spring, and the snap spring is clamped into the gland to complete the clamping, that is, the assembly of the solenoid valve and the shock absorber is realized. However, since the snap spring is a multi-point contact special-shaped part, occasionally, the snap spring cannot be pressed into place when the coil is assembled and pressed into the gland, but according to the current structure, after the solenoid valve coil is pressed into the gland, the solenoid valve seat blocks the opening of the gland, so it is completely impossible to observe whether the snap spring is clamped in place, which may cause the coil to fall out, and further causes the solenoid valve and the shock absorber to fail to realize stable connection. UTILITY MODEL CONTENTS

[0004] In order to solve the problems of the prior art, the utility model provides a solenoid valve outer tightening gland and tightening tool, discloses a new structure and assembly method for connecting the solenoid valve and the shock absorber, so as to realize stable connection of the solenoid valve and the shock absorber.

[0005] The technical problem to be solved by the utility model is solved through the following technical scheme:

[0006] The utility model relates to an electromagnetic valve outer tightening gland, is cylindrical, the upper end is connected electromagnetic valve valve seat, the lower end is connected shock absorber's hydraulic cylinder assembly, and the inner wall of the middle part is provided with the internal thread matched with the hydraulic cylinder assembly, the upper portion inboard is contracted to the mouth and becomes the mounting snap ring, and the mounting snap ring is provided with the snap spring between the internal thread, in the utility model, the outer wall of the gland is provided with the clamping platform of assisting from the outside clamping and twisting, and the clamping platform has at least two, is symmetrically distributed with the center of the gland as the center, and the clamping platform is outside cutting with the ring of the gland wall.

[0007] In the utility model, the clamping platform has 2 or 3 or 4 or 6, preferably 4.

[0008] In the utility model, the lower portion inner wall of the gland is provided with the sealing groove, and the sealing ring is embedded in the sealing groove, and the sealing ring is in interference fit with the part of the hydraulic cylinder assembly extending into the gland.

[0009] A kind of tightening tool of electromagnetic valve outer tightening gland, including concentrically arranged inner cylinder and outer cylinder, the inner wall of inner cylinder is provided with the clamping plane of uniform distribution, with the number of clamping platform of gland outer wall consistent and clearance fit, outer cylinder is the cylinder with closed bottom, and inner cylinder is fixedly connected between outer cylinder.

[0010] In the utility model, the filling layer is arranged between the inner cylinder and the outer cylinder, and is fixedly connected with the outer cylinder and the inner cylinder respectively.

[0011] In the utility model, the outer sleeve of outer cylinder is provided with anti-skid sleeve or the anti-skid stripe is provided on the outer wall of outer cylinder.

[0012] In the utility model, the inner wall of inner cylinder at the opening of tightening tool is provided with beveling for facilitating splicing.

[0013] In the utility model, the mounting hole matched with torque wrench is formed in the center of the bottom of outer cylinder.

[0014] A kind of assembly method of electromagnetic valve, it is a kind of connection method of electromagnetic valve and shock absorber hydraulic cylinder assembly, including using above-mentioned tightening tool to assemble above-mentioned gland to shock absorber hydraulic cylinder assembly.

[0015] In the utility model, the assembly method includes the following steps:

[0016] (1) snap spring is clamped on electromagnetic valve coil;

[0017] (2) the electromagnetic valve coil equipped with snap spring is pressed into the gland from the upper end of the gland, and the snap spring is embedded between the mounting snap ring and the internal thread and stretched, to realize the clamping of electromagnetic valve and gland;

[0018] (3) observe the snap spring in the gland from the lower end of the gland, to judge whether the snap spring is pressed into place.

[0019] (4) After determining that the circlip is pressed into place, the lower end of the gland is sleeved to the connecting part of the hydraulic cylinder assembly of the shock absorber, so that the internal threads of the inner wall of the gland reach the external threads of the hydraulic cylinder assembly;

[0020] (5) The tightening tool is buckled to the valve seat end of the electromagnetic valve coil, so that the clamping plane of the tightening tool matches the clamping platform of the outer wall of the gland, the tightening tool is twisted, the gland is screwed with the hydraulic cylinder assembly, and stable connection of the electromagnetic valve and the shock absorber is realized.

[0021] In the utility model, in step (3), the observation of the circlip in the gland can be achieved by the way of deflection angle, that is, the circlip is observed from different angles through the gap between the internal threads of the gland and the electromagnetic valve coil. Since the gap is reserved between the internal threads of the gland and the coil, the circlip is fixed by multi-point contact, which respectively contacts the inner wall of the gland and the outer wall of the coil. The circlip between the two adjacent contact points can be obviously observed through the gap between the internal threads of the gland and the coil. If part of the circlip does not pass through the mounting circlip of the gland, part of the feature points will be blocked by the mounting circlip and cannot be observed. Therefore, the number, position and length of the observed feature points can represent whether the circlip is pressed into place.

[0022] Compared with the prior art, the utility model has the following advantages:

[0023] The utility model provides a new structure of gland and the matched tightening tool, which effectively solves the problem that the unstable installation quality of the circlip leads to the loose connection between the electromagnetic valve and the shock absorber.

[0024] The sealing structure arranged on the gland effectively separates the screwing area in the gland from the external environment, avoids that the external mud reaches the screwing area through the installation gap of the gland, and causes the corrosion of the gland and the electromagnetic valve shell.

[0025] The tightening tool can effectively cooperate with the gland, assist the gland to be conveniently and quickly screwed and fixed with the shock absorber, and the operation is simple.

[0026] The anti-skid design and the bevel arranged on the tightening tool are more convenient for people to operate.

[0027] The assembly method changes the assembly sequence in the prior art, cooperates with the new structure of the gland and the matched tightening tool, effectively reduces the assembly difficulty, and improves the assembly efficiency.

[0028] The observation link arranged in the assembly method is simple, ingenious and reasonable, and can be replaced by automatic intelligent equipment. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The connecting structure schematic diagram after the gland assembly of the utility model is completed;

[0030] Figure 2 The gland structure schematic diagram in Figure 1 ;

[0031] Figure 3 The top view of Figure 2 ;

[0032] Figure 4 The A-A sectional view in Figure 3 ;

[0033] Figure 5 The B-B sectional view in Figure 3 ;

[0034] Figure 6 The top view of the tightening tool of the utility model;

[0035] Figure 7 The side half sectional view of Figure 6 .

[0036] In the drawing: gland 1, solenoid valve 2, sealing ring 3, hydraulic cylinder assembly 4, coil 5, clamping spring 6, clamping platform 7, mounting clasp 8, internal thread 9, sealing groove 10, outer cylinder 11, inner cylinder 12, clamping plane 13, filling layer 14, anti-skid sleeve 15, mounting hole 16, bevel 17. DETAILED DESCRIPTION

[0037] The utility model will be further described below in combination with the drawing and specific preferred embodiments, but it does not limit the protection scope of the utility model. EMBODIMENT

[0038] A solenoid valve outer tightening gland, as shown in Figure 1 , is arranged at the connection of solenoid valve and shock absorber hydraulic cylinder assembly, is cylindrical, the upper end is connected with solenoid valve seat, the lower end is connected with shock absorber hydraulic cylinder assembly, the inner wall of the middle part is provided with internal thread matched with hydraulic cylinder assembly, the upper part of the inner side is inwardly flared to become mounting clasp, clamping spring is arranged between mounting clasp and internal thread, in Figures 2-5 , the outer wall of the gland is provided with clamping platform, the clamping platform is symmetrically distributed with 4 centers as the center of the gland, the clamping platform is outside the circle of the wall of the gland, the lower part of the inner wall of the gland is provided with sealing groove, the sealing ring is embedded in the sealing groove, and the sealing ring is in interference fit with the part of the hydraulic cylinder assembly extending into the gland. EMBODIMENT

[0039] A tightening tool of solenoid valve outer tightening gland, as shown in Figure 6 and7 As shown, it comprises an inner cylinder and an outer cylinder arranged concentrically, the inner wall of the inner cylinder is provided with uniformly distributed clamping planes, the number of the clamping planes is consistent with the number of the clamping platforms of the outer wall of the gland, and the outer cylinder is a cylinder with a closed bottom, a filling layer is arranged between the inner cylinder and the outer cylinder and is fixedly connected with the outer cylinder and the inner cylinder respectively, an anti-skid sleeve is arranged outside the outer cylinder, a bevel is arranged on the inner wall of the inner cylinder at the opening for facilitating insertion, and a mounting hole for cooperating with a torque wrench is arranged at the center of the bottom of the outer cylinder. Embodiment

[0040] A method for assembling an electromagnetic valve, which is a method for connecting an electromagnetic valve and a shock absorber hydraulic cylinder assembly, comprising using the tightening tool of embodiment 2 to assemble the gland in embodiment 1 to the shock absorber hydraulic cylinder assembly. The specific steps include:

[0041] (1) Clamping the snap spring on the electromagnetic valve coil;

[0042] (2) Assembling the electromagnetic valve coil with the snap spring into the gland from the upper end of the gland, and making the snap spring pass through the mounting clasp of the gland, embed between the mounting clasp and the internal thread and stretch out, realizing the clamping connection of the electromagnetic valve and the gland;

[0043] (3) Observing the snap spring in the gland from the lower end of the gland, finding the observable snap spring by deflecting the viewing angle, and judging whether the snap spring is pressed into place;

[0044] (4) After determining that the snap spring is pressed into place, sleeving the lower end of the gland to the connecting part of the shock absorber hydraulic cylinder assembly, so that the internal thread of the inner wall of the gland reaches the external thread of the hydraulic cylinder assembly;

[0045] (5) Using the tightening tool to buckle the valve seat end of the electromagnetic valve coil, making the clamping planes of the tightening tool cooperate with the clamping platforms of the outer wall of the gland, and rotating the tightening tool to realize the screw connection of the gland and the hydraulic cylinder assembly, and further realize the stable connection of the electromagnetic valve and the shock absorber.

Claims

1. A solenoid valve external tightening cover, cylindrical in shape, with its upper end connected to the solenoid valve seat and its lower end connected to the hydraulic cylinder assembly of a shock absorber, wherein the inner wall of its middle section is provided with an internal thread that mates with the hydraulic cylinder assembly, and its upper inner side tapers inward to form a mounting ring, and a retaining spring is provided between the mounting ring and the internal thread, characterized in that: The outer wall of the gland is provided with auxiliary clamping platforms for clamping from the outside, and the clamping platforms are at least two and symmetrically distributed around the center of the gland.

2. The gland of claim 1, wherein: The clamping platforms are two or three or four or six.

3. The gland of claim 1, wherein: The lower inner wall of the gland is provided with a sealing groove, and a sealing ring is embedded in the sealing groove and is in interference fit with the part of the hydraulic cylinder assembly extending into the gland.

4. A tightening tool for an externally threaded bonnet of a solenoid valve, for fitting a bonnet as claimed in claim 1 or 2 to a hydraulic cylinder assembly of a shock absorber, characterized in that: The tightening tool comprises an inner cylinder and an outer cylinder arranged concentrically, the inner wall of the inner cylinder is provided with uniformly distributed clamping platforms, the number of the clamping platforms is consistent with that of the clamping platforms on the outer wall of the gland, and the clamping platforms are in clearance fit, the outer cylinder is a closed cylinder at the bottom, and the inner cylinder is fixedly connected with the outer cylinder.

5. The tightening tool according to claim 4, characterized in that: A filling layer is arranged between the inner cylinder and the outer cylinder and is fixedly connected with the outer cylinder and the inner cylinder respectively.

6. The tightening tool of claim 4, wherein: The outer cylinder is provided with an anti-skid sleeve or the outer wall of the outer cylinder is provided with anti-skid stripes.

7. The tightening tool of claim 4, wherein: The inner wall of the inner cylinder at the opening of the tightening tool is provided with a bevel for convenient insertion.

8. The tightening tool of claim 4, wherein: A mounting hole for cooperating with a torque wrench is arranged at the center of the bottom of the outer cylinder.

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