Combined engine sealing bush

Abstract

The utility model relates to the technical field of bushings, and discloses a combined engine sealing bush which comprises a bush body, the sealing bush is formed by connecting and splicing a plurality of sets of bush bodies end to end, the bush body comprises two sets of half bushings, one ends of the two sets of half bushings are hinged to each other, and the other ends of the two sets of half bushings are hinged to each other. The other ends of the two sets of half linings are fixedly connected with U-shaped plates, positioning grooves are formed in the surfaces of the U-shaped plates, the outer walls of the two sets of U-shaped plates are sleeved with fixing sleeves, through grooves are formed in the surfaces of the fixing sleeves, positioning pins are inserted into the through grooves, and two sets of symmetrically-arranged lantern rings are fixedly connected to the surfaces of the fixing sleeves. According to the combined engine sealing bush, fixing of the fixing sleeve to the U-shaped plate is removed, due to the fact that one ends of the two sets of half bushings are hinged to each other, the two sets of half bushings can be rotated around the hinge point, the bush body is opened, and therefore lubricating oil is evenly smeared on the inner wall of the bush body, and lubricating dead corners are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to bush technology field, concretely is a combined engine sealing bush. BACKGROUND

[0002] The bush is a supporting part for the outer part of the mechanical component to achieve the sealing, wear protection and the like, and is a ring sleeve that plays the role of the gasket. In the valve application field, the bush is in the valve cover, and polytetrafluoroethylene or graphite and the like corrosion-resistant materials are generally used for the sealing effect.

[0003] According to a combined engine sealing bush (announcement number: CN217301594U) disclosed, the plurality of bush assemblies are spliced at the bottom of the body by inserting and installing the threaded interface into the installation groove, the length of the body is lengthened according to the engine sealing structure depth size, the body does not need to be replaced for many times, convenience and rapidness are achieved, the practicability is improved, the lubricating oil is injected into the oil injection port after the blockage is manually pulled out, the lubricating oil flows out from the oil outlet in the body, the lubricating oil can flow to the inner end wall of the body and the bush assembly, the surface is lubricated, internal rusting that affects use is avoided, the bush assembly is convenient for subsequent disassembly, and the service life is improved.

[0004] The above device has certain disadvantages in the use process, the lubricating oil is injected into the oil injection port manually, it is difficult to ensure that the lubricating oil can uniformly flow to each part of the inner end wall of the body and the bush assembly, the lubricating oil is prone to be excessive in some areas, and the lubricating oil is insufficient in some areas, the overall lubricating effect is affected, local wear is aggravated, and the service life is reduced. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a combined engine sealing bush to solve the problems in the above background technology.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a combined engine sealing bush, comprising a bush body, the sealing bush is spliced by a plurality of bush bodies connected in head-to-tail mode, the bush body comprises two groups of half bushes, one end of the two groups of half bushes is hingedly connected, the other end of the two groups of half bushes is fixedly connected with a U-shaped plate, a positioning groove is formed in the surface of the U-shaped plate, a fixing sleeve is sleeved on the outer wall of the two groups of U-shaped plates, a through groove is formed in the surface of the fixing sleeve, a positioning pin is inserted into the through groove, the surface of the fixing sleeve is fixedly connected with two groups of symmetrically arranged sleeve rings, and the bottom end of the positioning pin is inserted into the positioning groove.

[0007] Preferably, the top end of the positioning pin is provided with a fixing assembly, the fixing assembly comprises a crossbar, the crossbar is fixedly connected to the top end of the positioning pin, a groove is formed in the surface of the crossbar, two groups of symmetrical movable plates are slidably connected to the groove, and the opposite side walls of the two groups of movable plates are fixedly connected with positioning rods, and the positioning rods are inserted into the inside of the sleeve ring.

[0008] Preferably, the shape of the fixing sleeve is provided with a C shape, and the two sides of the fixing sleeve are provided with protruding portions which are matched with the U-shaped grooves of the side walls of the U-shaped plate.

[0009] Preferably, the joint portions of the two groups of half bushings are provided with sealing gaskets.

[0010] Preferably, the opposite side walls of the two groups of movable plates are elastically connected through return springs.

[0011] Preferably, the groups of bushing bodies are threadedly connected.

[0012] Compared with the prior art, the utility model provides a combined engine sealing bushing with the following beneficial effects:

[0013] 1、the combined engine sealing bushing, by pressing the movable plate to the inside, makes the return spring compression, the positioning rod is separated from the sleeve ring, the positioning pin is pulled out from the through groove and the positioning groove, the fixing of the U-shaped plate by the fixing sleeve is removed, because the two groups of half bushings are hingedly connected at one end, the two groups of half bushings can be rotated around the hinge point, the bushing body is opened, and the lubricating oil is evenly applied to the inner wall of the bushing body, so that the lubrication dead angle is avoided.

[0014] 2、the combined engine sealing bushing, by the cooperation of the positioning pin and the positioning groove, the separation or relative displacement of the fixing sleeve and the U-shaped plate in the use process is prevented, the return spring exerts pressure on the two groups of movable plates, the positioning rods on the opposite side walls of the movable plates are inserted into the sleeve ring, the situation that the positioning pin falls off is avoided, and therefore the firmness and stability of the connection between the parts of the sealing bushing are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a split structure schematic view of the utility model;

[0017] Figure 3 It is a bushing body opening structure schematic view of the utility model;

[0018] Figure 4 It is a positioning pin and fixing assembly split structure schematic view of the utility model.

[0019] In the figure: 1, bush body; 11, half bush; 2, U-shaped plate; 21, positioning groove; 3, fixed sleeve; 31, through groove; 32, sleeve ring; 4, positioning pin; 5, fixed assembly; 51, cross rod; 52, groove; 53, movable plate; 54, return spring; 55, positioning rod. DETAILED DESCRIPTION

[0020] As Figures 1-4 shown, the utility model provides a technical scheme: a combined engine sealing bush, including bush body 1, sealing bush is connected by a plurality of bush body 1s head to tail splicing, a plurality of bush body 1s between adopt threaded connection, a plurality of bush body 1 splicing can be according to the actual demand of engine sealing structure, flexible adjustment sealing bush's length, with the adaptation of different depth size's engine sealing structure. Bush body 1 includes two groups of half bush 11, and one end of two groups of half bush 11 is hingedly connected, and the splicing of two groups of half bush 11 is provided with sealing pad, and two groups of half bush 11 are hingedly connected so that half bush 11 can be operated like opening and closing a clip, which facilitates the installation and disassembly of bush body 1, and can more evenly apply lubricating oil to the inner wall surface of bush body 1, ensures that the lubrication effect is better, can more accurately control the distribution of lubricating oil, avoids the emergence of lubrication dead angle, reduces the friction between parts, reduces the degree of wear. Through sealing pad, lubricating oil can be prevented from leaking from the splicing.

[0021] As Figures 1-4 shown, the other end of two groups of half bush 11 is fixedly connected with U-shaped plate 2, the surface of U-shaped plate 2 is provided with positioning groove 21, the outer wall of two groups of U-shaped plate 2 is sleeved with fixed sleeve 3, the shape of fixed sleeve 3 is provided with C-shaped, and the both sides of fixed sleeve 3 are provided with convex parts, the convex parts are matched with the U-shaped groove of the side wall of U-shaped plate 2, the surface of fixed sleeve 3 is provided with through groove 31, and the surface of fixed sleeve 3 is fixedly connected with two groups of symmetrically arranged sleeve rings 32, the fixed sleeve 3 is sleeved on the outer wall of two groups of U-shaped plate 2, the convex parts are matched with the U-shaped groove, the two groups of U-shaped plate 2 can be tightly connected together, so that the two groups of half bush 11 are tightly attached and combined to form bush body 1, the positioning pin 4 is inserted into the inside of positioning groove 21, and the through groove 31 provides an insertion path for the positioning pin 4, so that the positioning pin 4 can be accurately inserted into the positioning groove 21, and the fixed sleeve 3 and U-shaped plate 2 are prevented from separating or relatively displacing in the use process through the cooperation of the positioning pin 4 and the positioning groove 21, to ensure the structural stability of the sealing bush.

[0022] As Figures 1-4As shown, the top end of the positioning pin 4 is provided with a fixing assembly 5, the fixing assembly 5 includes a crossbar 51 fixedly connected at the top end of the positioning pin 4, the surface of the crossbar 51 is provided with a groove 52, the groove 52 is slidably connected with two groups of symmetrically arranged movable plates 53, the opposite side walls between the two groups of movable plates 53 are elastically connected through a reset spring 54, and the opposite side walls of the two groups of movable plates 53 are fixedly connected with positioning rods 55, and the positioning rods 55 are inserted into the inside of the sleeve ring 32. The reset spring 54 exerts pressure on the two groups of movable plates 53, the two groups of movable plates 53 slide in the groove 52, the positioning rods 55 are inserted into the sleeve ring 32, the situation that the positioning pin 4 falls off is avoided, and the connection strength and stability between the parts of the sealing bush are further enhanced.

[0023] In the utility model, when in use, the fixed sleeve 3 is sleeved on the outer walls of the two groups of U-shaped plates 2, the protruding portions on the two sides of the fixed sleeve 3 are matched with the U-shaped grooves in the side walls of the U-shaped plates 2, so that the two groups of U-shaped plates 2 are tightly connected, and the two groups of half bushings 11 are tightly adhered to form the complete bushing main body 1.

[0024] Then, the positioning pin 4 is inserted into the through groove 31 on the surface of the fixed sleeve 3 and accurately inserted into the positioning groove 21 on the surface of the U-shaped plate 2, the relative position between the fixed sleeve 3 and the U-shaped plate 2 is fixed through the cooperation of the positioning pin 4 and the positioning groove 21, the separation or relative displacement of the fixed sleeve 3 and the U-shaped plate 2 in the use process is prevented, and the structural stability of the sealing bush is ensured. After the positioning pin 4 is inserted in place, the two groups of movable plates 53 slide in the groove 52 on the surface of the crossbar 51 due to the pressure exerted by the reset spring 54 on the two groups of movable plates 53, the positioning rods 55 on the opposite side walls of the movable plates 53 are inserted into the sleeve ring 32 on the surface of the fixed sleeve 3, the connection between the fixing assembly 5 and the fixed sleeve 3 is further enhanced, the situation that the positioning pin 4 falls off is avoided, and the firmness and stability of the connection between the parts of the sealing bush are ensured.

[0025] The utility model has been described in detail above, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the utility model are within the protection scope of the utility model.

Claims

1. A combined engine sealing bushing, comprising a bushing body (1), characterized in that: The sealing bushing is formed by splicing together multiple bushing bodies (1) end to end. Each bushing body (1) includes two sets of half bushings (11). One end of each set of half bushings (11) is hinged to the other end of each set of half bushings (11). A U-shaped plate (2) is fixedly connected to the other end of each set of half bushings (11). A positioning groove (21) is provided on the surface of the U-shaped plate (2). A fixing sleeve (3) is fitted on the outer wall of each set of U-shaped plates (2). A through groove (31) is provided on the surface of the fixing sleeve (3). A positioning pin (4) is inserted into the inside of the through groove (31). Two sets of symmetrically arranged collars (32) are fixedly connected to the surface of the fixing sleeve (3). The bottom end of the positioning pin (4) is inserted into the inside of the positioning groove (21).

2. The combined engine sealing bushing according to claim 1, characterized in that: The top of the positioning pin (4) is provided with a fixing component (5), the fixing component (5) includes a crossbar (51), the crossbar (51) is fixedly connected to the top of the positioning pin (4), the surface of the crossbar (51) is provided with a groove (52), the groove (52) is slidably connected to two sets of symmetrically arranged movable plates (53), the opposite sidewalls of the two sets of movable plates (53) are fixedly connected with positioning rods (55), the positioning rods (55) are inserted into the inside of the collar (32).

3. The combined engine sealing bushing according to claim 1, characterized in that: The fixed sleeve (3) is C-shaped, and the fixed sleeve (3) has protrusions on both sides, which match the U-shaped grooves on the sidewalls of the U-shaped plate (2).

4. A combined engine sealing bushing according to claim 1, characterized in that: Both sets of the semi-blade (11) are provided with sealing gaskets at the joint.

5. A combined engine sealing bushing according to claim 2, characterized in that: The opposing sidewalls of the two sets of movable plates (53) are elastically connected by a return spring (54).

6. A combined engine sealing bushing according to claim 1, characterized in that: The multiple sets of bushing bodies (1) are connected by threads.

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