CN109397172B - Engine hose clamp installation pincers - Google Patents

Abstract

The invention discloses engine hose clamp mounting pliers, which comprise two pliers bodies hinged with each other through a central shaft, wherein each pliers body comprises a jaw section, a pliers handle section and a hinge section; the inner sides of the front end parts of the two jaw sections are respectively provided with a clamping block, the clamping blocks are hinged with the front end parts of the jaw sections, clamping grooves are formed in the clamping blocks, and when the jaws of the mounting pliers are opened, the distance between the notches of the clamping grooves on the two sides is larger than or equal to 50 mm. The mounting clamp provided by the invention has the advantages that the problems that the production efficiency of the mounting tool for the steel belt type elastic clamp of the automobile engine hose in the prior art is low and accidents are easy to happen are effectively solved, the holding angle of the mounting clamp is variable, the lug plate cannot slip off, the production efficiency is high, the mounting tool is safe and reliable, and the practical value is very high.

Description

Engine hose clamp installation pincers

Technical Field

The invention relates to the technical field of automobile production, in particular to an engine hose clamp mounting pliers for mounting a steel belt type elastic clamp on an automobile engine hose.

Background

At present, when an engine water pipe is assembled or disassembled, tools used by the steel belt type elastic clamp are formed by remanufacturing on the basis of common sharp-nose pliers, the maximum opening of the sharp-nose pliers is 340mm, and the distance between installation lugs of the elastic clamp with a large model is about 460 mm. Therefore, the lug of the elastic hoop needs to be pre-pressed to a certain degree by hands to be pressed continuously by the sharp nose pliers, so that the working efficiency is low. In addition, its clamping part of prior art's clamp installation pincers is fixed knot and constructs, but during the clamp installation, the contained angle between two installation auricles on the clamp can diminish at the in-process that compresses tightly of auricle gradually, causes clamp installation auricle sliding displacement on the clamp clamping part from this easily to lead to the auricle slippage, make steel band type elasticity clamp pop out and take place danger, cause the emergence of incident, thereby influence the normal clear of production. If fix clamp installation auricle on mounting tool, then cause clamp installation auricle to bend easily and warp, influence product quality. Chinese patent publication No. CN202622703U, published as 12/26/2012, discloses an automobile clamp pliers, and belongs to the technical field of hardware tools. It has solved the problem that current special pincers of car clamp can not carry out dismouting clamp in the inseparable place of structure. The automobile clamp pliers comprise a first pliers body and a second pliers body, wherein the first pliers body and the second pliers body are hinged together in a crossed mode, the first pliers body above a hinge point is a first working part, and the first pliers body below the hinge point is a first operating part; the second clamp body above the hinge point is a second working part, the second clamp body below the hinge point is a second operating part, the first operating part is connected with a steel wire rope, and the other end of the steel wire rope is connected with a control mechanism which can drive the first working part and the second working part to open or close through the steel wire rope. The automobile clamp pliers have the advantage that the clamp pliers can flexibly work at a position with a compact structure. However, the automobile clamp pliers are complex in structure and inconvenient to operate, and are not suitable for assembling or disassembling common steel belt type elastic clamps. Chinese patent publication No. CN 203542411U, whose publication date is 4/16/2014, discloses a pair of pliers with spring clip, which comprises two pliers bodies hinged to each other, wherein two engaged pliers heads are arranged on one side of a hinge shaft of the two pliers bodies, the two pliers bodies extend on the other side of the hinge shaft to form two handles, the heads of the two pliers heads are provided with notches matching the ear shapes of the spring clips, and a limiting device for keeping the distance between the handles is arranged between the two handles. The limiting device comprises a chain and a limiting hook plate, the chain and the limiting hook plate are connected to the two handles respectively, the chain is connected end to form a circle, the limiting hook plate comprises a connecting plate, one end of the connecting plate is connected with the handle, the other end of the connecting plate extends towards the other handle, and the connecting plate is provided with a plurality of hooks. However, the pliers are only suitable for spring clips having a linear structure, and cannot be applied to the attachment and detachment of a steel band type elastic clip.

Disclosure of Invention

The invention aims to solve the problems that the installation tool for the steel belt type elastic clamp of the automobile engine hose in the prior art is low in production efficiency and easy to cause accidents, and provides the engine hose clamp installation pliers which are high in efficiency, safe and reliable.

The invention also aims to solve the problem that the clamping parts of the clamp installation pliers in the prior art are all fixed structures, and the clamp installation lug plates are easy to slide and move on the clamping parts when the angle between the clamp lug plates is changed, so that the lug plates slip to cause safety accidents.

The invention adopts a specific technical scheme to realize the purpose that the engine hose clamp mounting pliers comprise a pliers body consisting of a jaw section and a pliers handle section, wherein the pliers body comprises a first pliers body and a second pliers body which are mutually hinged through a central shaft, and the first pliers body comprises a first jaw section, a first pliers handle section and a first hinge section positioned between the first jaw section and the first pliers handle section; the second clamp body comprises a second jaw section, a second clamp handle section and a second hinge section positioned between the second jaw section and the second clamp handle section; the inner sides of the front end parts of the first jaw section and the second jaw section are respectively provided with a first clamping block and a second clamping block; the first clamping block is provided with a first concave clamping groove, the second clamping block is provided with a second concave clamping groove, and when a jaw of the mounting pliers is opened, the distance between the notch of the first clamping groove and the notch of the second clamping groove is larger than or equal to 50 mm. The clamping groove is formed in the jaw of the clamp mounting pliers, the clamp mounting lug and the clamp mounting pliers can be relatively fixed through the clamping groove, and the clamp mounting lug is prevented from sliding and moving on the clamping block, so that the lug slips and the steel belt type elastic clamp is ejected to cause danger. In addition, the distance between the notch of the first clamping groove and the notch of the second clamping groove is more than or equal to 50 mm, so that the elastic clamp can adapt to elastic clamps of various specifications, and the problem of low working efficiency in installation of elastic clamps with larger models in the prior art is solved.

Preferably, the first jaw section and the second jaw section are both flat structures, the width of the first jaw section on the radial plane of the central shaft is larger than the thickness of the first jaw section in the axial direction of the central shaft, the width of the second jaw section on the radial plane of the central shaft is larger than the thickness of the second jaw section in the axial direction of the central shaft, and the thickness of the first jaw section is equal to the thickness of the second jaw section. The adoption of the flat structure jaw section is beneficial to the installation or the disassembly of the elastic hoop at the position where the installation clamp enters a relatively small space.

Preferably, the front end portions of the first jaw section and the second jaw section are formed with a twisted structure, the twisted structure is formed with opposing clamping block mounting surfaces, and the first clamping block and the second clamping block are fixed to the clamping block mounting surfaces, respectively. The front end of the jaw section can form a relatively wide clamping block mounting surface by the torsion structure, so that the contact area of the clamping block and the clamping hoop lug can be increased by the large clamping block, and the possibility that the clamping hoop lug slides off from the clamping groove is reduced.

Preferably, the first and second clamping blocks have a width in the axial direction of the central axis equal to the thickness of the first or second jaw section. The thickness of grip block equals with the thickness of keeping silent the section for whole installation pincers's anterior whole becomes flat structure, thereby does benefit to the installation pincers and gets into some positions that only have the gap space and carry out the installation or the dismantlement of elasticity clamp.

Preferably, step surfaces are arranged on two sides of the front end portions of the first jaw section and the second jaw section, the step surfaces are perpendicular to the central shaft, through grooves are formed in the rear end portions of the first clamping block and the second clamping block, the groove walls of the through grooves are attached to the step surfaces, hinge holes parallel to the central shaft are formed in the step surfaces of the first clamping block, the second clamping block, the first jaw section and the second jaw section, front limiting surfaces and rear limiting surfaces are formed on the jaw bodies located on two sides of the hinge holes of the step surfaces respectively, hinge shafts penetrate through the hinge holes, the first clamping block is hinged to the front end portion of the first jaw section, the second clamping block is hinged to the front end portion of the second jaw section, and tension springs are arranged between the first clamping block and the first jaw section as well as between the second clamping block and the second jaw section. The clamping block and the clamp body adopt a hinged structure, the clamping block can rotate on a radial plane of a central shaft relative to the clamp body, when the installation lug of the elastic clamp is inserted into the clamping groove on the clamping block and is pressed along with the closing of the jaw of the installation clamp, the central plane of the clamping groove on the clamping block is always consistent with the installation lug of the elastic clamp, namely, when the included angle is reduced due to the extrusion of the two installation lugs on the elastic clamp, the clamping block can rotate along with the rotation to adapt to the angle change, so that the problem that the clamp installation lug slides and moves on the clamping part easily when the angle between the clamp lugs is changed, and the safety accident is caused by the slipping of the lug; the problem that the quality of the product is influenced by the deformation of the clamp installation lug caused by bending and the like due to the forced fixation of the clamp installation lug can be avoided. The tension spring is used for tensioning the movable section of the clamping block in the initial state backwards, so that the deflection angle of the movable section is matched with the initial angle of the two mounting lug pieces on the elastic hoop, and the two mounting lug pieces are conveniently inserted into the clamping groove.

Preferably, step surfaces are arranged on two sides of the rear end portions of the first clamping block and the second clamping block, through grooves are formed in the front end portions of the first jaw section and the second jaw section, the center surfaces of the through grooves are perpendicular to the center shaft, the groove walls of the through grooves are attached to the step surfaces, hinge holes parallel to the center shaft are formed in the step surfaces of the first jaw section, the second jaw section, the first clamping block and the second clamping block, front limiting surfaces and rear limiting surfaces are formed on the jaw bodies located on two sides of the hinge holes of the through grooves respectively, hinge shafts penetrate through the hinge holes, the first clamping block is hinged to the front end portion of the first jaw section, the second clamping block is hinged to the front end portion of the second jaw section, and tension springs are arranged between the first clamping block and the first jaw section as well as between the second clamping block and the second jaw section. The technical scheme is a structure equivalent exchange scheme of the scheme, namely the through groove arranged on the clamping block in the scheme is arranged on the clamp body, and the step surface arranged on the clamp body in the scheme is arranged on the clamping block, so that the technical effect is the same as that of the scheme.

Preferably, the central plane of the first clamping groove is located on the axial central plane of the first clamping block hinge hole, the central plane of the second clamping groove is located on the axial central plane of the second clamping block hinge hole, the groove widths of the first clamping groove and the second clamping groove are matched with the thickness of the engine hose clamp lug, and guide surfaces are arranged at the front ends of the first clamping groove and the second clamping groove. The groove width of the clamping groove is usually slightly larger than the thickness of the clamping hoop lug, and the guide surface is arranged at the front end of the clamping groove, so that two installation lugs of the clamping hoop can be conveniently and smoothly inserted into the clamping groove.

Preferably, one side or two sides of the first clamping groove or the second clamping groove are provided with baffle plates for closing the lateral openings of the clamping grooves. When the clamp body structure with the flat structure is adopted, the thickness of the clamping block is small, the installation lug of the steel strip type elastic clamp is of a structure that one side is relatively wide (equivalent to the width of the clamp), the other side is relatively narrow (part of the middle of the width of the clamp), one side of the lug wide is not easy to slide out in the clamping groove, the other side is easy to slide out, and the baffle plates are arranged on one side or two sides of the clamping groove, so that the lug can be prevented from sliding out.

Preferably, the magnetic bodies are disposed on the groove walls of the first clamping groove and the second clamping groove. The magnet can adsorb the installation auricle of steel band type elasticity clamp, prevents the auricle roll-off.

Preferably, an included angle between the front limiting surface and the rear limiting surface is an acute angle, when the jaw of the mounting pliers is opened, the inner side edge of the first clamping block and the inner side edge of the second clamping block are abutted to the corresponding rear limiting surfaces, an included angle α between the central surface of the first clamping groove and the central surface of the second clamping groove is 85 to 95 degrees, when the jaw of the mounting pliers is closed, the inner side edge of the first clamping block and the inner side edge of the second clamping block are abutted to the corresponding front limiting surfaces, and an included angle α between the central surface of the first clamping groove and the central surface of the second clamping groove is 10 to 20 degrees. The included angle between the front limiting surface and the rear limiting surface and the opening angle of the jaw of the mounting clamp determine the included angle between the central surface of the first clamping groove and the central surface of the second clamping groove, and because the initial opening angle of the mounting lug of the steel strip type elastic clamp is about 90 degrees generally, when the included angle between the front limiting surface and the rear limiting surface is set, when the jaw of the mounting clamp is opened, the included angle between the central surface of the first clamping groove and the central surface of the second clamping groove is about 90 degrees. When the steel band type elastic clamp is assembled, because enough allowance is usually reserved, namely when a jaw of the mounting clamp is closed, two mounting lugs do not need to be attached, namely an included angle alpha between the central plane of the first clamping groove and the central plane of the second clamping groove is about 10 to 20 degrees, and the requirement can be met.

Preferably, the rear portion of the forceps handle section is provided with a forceps handle sleeve, the forceps handle section positioned on the front side of the forceps handle sleeve is provided with a locking mechanism, the locking mechanism comprises a locking handle hinged on the first forceps handle section and a locking block fixed on the second forceps handle section, the locking handle and the locking block are provided with mutually-matched one-way locking sawteeth, the first forceps handle section is further provided with a torsional spring used for pressing the locking handle, and the locking handle is further provided with a pressing portion. The locking mechanism is used for fixing the width of the jaw when the mounting lug of the steel belt type elastic hoop is compressed, so that continuous pressure is prevented from being applied to the clamp handle, the labor intensity can be reduced, and the hoop can be conveniently mounted. When the clamp handle end applies pressure to enable the clamp mouth to be reduced, the locking handle and the locking block are buckled with each other, the unidirectional locking sawteeth are in unidirectional sliding and buckled, so that the clamp mouth can be prevented from being opened reversely under the action of elasticity of the clamp hoop, when the clamp mouth needs to be loosened after installation is completed, the pressing part is pressed to enable the locking handle and the locking block to be separated from each other, and the clamp mouth can be opened. The torsional spring presses the locking handle to the locking block, so that the locking handle is always in a buckling state when no external force is applied.

The invention has the advantages of effectively solving the problems that the automobile engine hose steel belt type elastic clamp mounting tool in the prior art is low in production efficiency and easy to cause accidents, and also solving the problems that the clamping parts of the clamp mounting pliers in the prior art are all of fixed structures, and the clamp mounting lugs are easy to slide and shift on the clamping parts when the angle between the clamp lugs is changed, so that the lugs are easy to slip to cause safety accidents.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is another schematic structural view of the present invention;

FIG. 3 is a schematic view of a portion of the invention with the jaws open in an operative condition;

FIG. 4 is a schematic view of a portion of the present invention with the jaws closed in an operative condition;

FIG. 5 is an enlarged view of a portion of the front end of the jaw section of the present invention;

FIG. 6 is an enlarged view of another detail of the forward end portion of the jaw section of the present invention;

FIG. 7 is a schematic view of one construction of the clamping block of the present invention;

FIG. 8 is a view from the A-A direction of FIG. 7;

fig. 9 is a cross-sectional view of another construction of the clamping block of the present invention.

In the figure: 1. the clamp comprises a first jaw section, a second jaw section, a third jaw section, a fourth jaw section, a fifth jaw section, a sixth jaw section.

Detailed Description

The following description of the present invention is provided by way of example and with reference to the accompanying drawings.

Example 1

In embodiment 1 shown in fig. 1, an engine hose clamp mounting clamp comprises a clamp body composed of a clamp opening section and a clamp handle section, wherein the clamp body comprises a first clamp body and a second clamp body which are hinged to each other through a central shaft, and the first clamp body comprises a first clamp opening section 1, a first clamp handle section 3 and a first hinge section positioned between the first clamp opening section and the first clamp handle section; the second clamp body comprises a second jaw section 2, a second clamp handle section 4 and a second hinge section positioned between the second jaw section and the second clamp handle section; first jaw section and second jaw section all are the flat structure, the width of first jaw section on 9 radial planes of center pin is greater than the thickness of first jaw section in the center pin axial, the width of second jaw section on the radial plane of center pin is greater than the thickness of second jaw section in the center pin axial, and the thickness of first jaw section equals with the thickness of second jaw section, the width of first jaw section equals with the width of second jaw section. The inner sides of the front end parts of the first jaw section and the second jaw section are respectively provided with a first clamping block 5 and a second clamping block 6, and the first clamping block and the second clamping block are cylindrical or square-cylindrical; the first clamping block is provided with a first concave clamping groove 7, the second clamping block is provided with a second concave clamping groove 8, the cross sections of the first clamping groove and the second clamping groove are both arc-shaped (not shown in the figure), and the length direction of the clamping grooves is in the axial direction of the central shaft. The front end parts of the first jaw section and the second jaw section are provided with torsion structures, opposite clamping block mounting surfaces are formed on the torsion structures, and the first clamping block and the second clamping block are respectively fixed on the clamping block mounting surfaces. The rear portion of pincers handle section is equipped with pincers handle cover 19, is located to be equipped with locking mechanism on the pincers handle section of pincers handle cover front side, locking mechanism is equipped with the one-way locking sawtooth 22 of mutual adaptation including articulating locking handle 20 on first pincers handle section and fixing the latch segment 21 on the second pincers handle section on locking handle and the latch segment, still is equipped with the torsional spring 23 that is used for compressing tightly the locking handle on the first pincers handle section, still is equipped with on the locking handle and presses splenium 24. When the jaws of the mounting pliers of the embodiment are opened, the distance between the notch of the first clamping groove and the notch of the second clamping groove is more than or equal to 50 mm.

Example 2

In embodiment 2 shown in fig. 2, the widths of the first and second clamping blocks in the axial direction of the center shaft are equal to the thickness of the first jaw section or the second jaw section. The front end parts of the first jaw section and the second jaw section are provided with step faces 10 (see fig. 5), the step faces are perpendicular to the central shaft, the rear end parts of the first clamping block and the second clamping block are provided with through grooves 11 (see fig. 8), the groove walls of the through grooves are attached to the step faces, hinge holes 12 parallel to the central shaft are formed in the step faces of the first clamping block, the second clamping block and the first jaw section and the second jaw section, front limiting faces 13 and rear limiting faces 14 (see fig. 6) are formed in the jaw bodies on the two sides of the hinge holes of the step faces respectively, hinge shafts 15 penetrate through the hinge holes, the first clamping block is hinged to the front end part of the first jaw section, the second clamping block is hinged to the front end part of the second jaw section, and tension springs 16 are arranged between the first clamping block and the first jaw section as well as between the second clamping block and the second jaw section. The central plane of first centre gripping groove is located the axial direction central plane of first grip block hinge hole, and the central plane of second centre gripping groove is located the axial direction central plane of second grip block hinge hole, and the groove width of first centre gripping groove and second centre gripping groove all is equipped with guiding surface 17 with the thickness looks adaptation of engine hose clamp auricle, first centre gripping groove and second centre gripping groove front end (see fig. 7). The included angle between preceding spacing face and the back spacing face is the acute angle, when keeping silent of installation pincers and opening, the inboard side of first grip block and the inboard side of second grip block all with the back spacing face butt that corresponds, the included angle alpha between the central plane of first centre gripping groove and the central plane of second centre gripping groove is 90 degrees (see fig. 3), when keeping silent of installation pincers and closing, the inboard side of first grip block and the inboard side of second grip block all with the preceding spacing face butt that corresponds, the included angle alpha between the central plane of first centre gripping groove and the central plane of second centre gripping groove is 15 degrees (see fig. 4), all the other is the same with embodiment 1.

Example 3

The rear end portions of the first clamping block and the second clamping block in embodiment 3 are provided with step surfaces, the front end portions of the first jaw section and the second jaw section are provided with through grooves, the center surfaces of the through grooves are perpendicular to the center shaft, the groove walls of the through grooves are attached to the step surfaces, hinge holes parallel to the center shaft are formed in the step surfaces of the first jaw section, the second jaw section, the first clamping block and the second clamping block, front limiting surfaces and rear limiting surfaces are formed on the jaw bodies on two sides of the hinge holes of the through grooves respectively, hinge shafts penetrate through the hinge holes, the first clamping block is hinged to the front end portion of the first jaw section, the second clamping block is hinged to the front end portion of the second jaw section, tension springs are arranged between the first clamping block and the first jaw section as well as between the second clamping block and the second jaw section, and the rest are the same as in embodiment 2.

Example 4

In embodiment 4, a baffle 18 (see fig. 9) for closing the lateral opening of the holding groove is provided on one side or both sides of the first holding groove or the second holding groove, and the groove walls of the first holding groove and the second holding groove are provided with magnets, the rest is the same as that in embodiment 2 or embodiment 3.

When the mounting clamp is used, the jaw is opened, the two mounting lugs on the hoop 25 are respectively inserted into the two clamping grooves (shown in figure 3) at the front end part of the clamp, the two mounting lugs on the hoop can be pressed by applying pressure on the handle end of the clamp, the diameter of the hoop is increased, the two mounting lugs can be always in a pressing state by the locking mechanism, the clamp can be sleeved on an engine hose by the movable mounting clamp at the moment, the pressing part on the locking handle is pressed, the locking mechanism is unlocked, and the jaw can be opened to clamp the hoop on the hose, so that the assembly of the hose is completed. Because the clamping block and the clamp body adopt a hinged structure, the clamping block can rotate on a radial plane of a central shaft relative to the clamp body, when the mounting lug of the elastic clamp is inserted into the clamping groove on the clamping block and is pressed along with the closing of the jaw of the mounting clamp, the central plane of the clamping groove on the clamping block is always consistent with the mounting lug of the elastic clamp, namely when the included angle is reduced due to the extrusion of the two mounting lugs on the elastic clamp, the clamping block can rotate along with the rotation to adapt to the angle change, so that the problem that the clamping lug slides and moves on the clamping part easily when the angle between the clamping lugs is changed, and the safety accident is caused by the slipping of the clamping lug; the problem that the quality of the product is influenced by the deformation of the clamp installation lug caused by bending and the like due to the forced fixation of the clamp installation lug can be avoided.

In addition to the above embodiments, the technical features or technical data of the present invention may be reselected and combined to form new embodiments within the scope of the claims and the specification of the present invention, which are all realized by those skilled in the art without creative efforts, and thus, the embodiments of the present invention not described in detail should be regarded as specific embodiments of the present invention and are within the protection scope of the present invention.

Claims (8)

1. The engine hose clamp mounting pliers comprise pliers bodies consisting of a jaw section and a pliers handle section, wherein the pliers bodies comprise a first pliers body and a second pliers body which are hinged with each other through a central shaft, and the engine hose clamp mounting pliers are characterized in that the first pliers body comprises a first jaw section (1), a first pliers handle section (3) and a first hinge section positioned between the first jaw section and the first pliers handle section; the second clamp body comprises a second jaw section (2), a second clamp handle section (4) and a second hinge section positioned between the second jaw section and the second clamp handle section; the inner sides of the front end parts of the first jaw section and the second jaw section are respectively provided with a first clamping block (5) and a second clamping block (6); an inwards concave first clamping groove (7) is formed in the first clamping block, an inwards concave second clamping groove (8) is formed in the second clamping block, and when a jaw of the mounting pliers is opened, the distance between the notch of the first clamping groove and the notch of the second clamping groove is larger than or equal to 50 mm; the front end parts of the first jaw section and the second jaw section are provided with step faces (10) on two sides, the step faces are perpendicular to the central shaft, the rear end parts of the first clamping block and the second clamping block are provided with through grooves (11), the groove walls of the through grooves are attached to the step faces, hinge holes (12) parallel to the central shaft are formed in the step faces of the first clamping block, the second clamping block and the first jaw section and the second jaw section, front limiting faces (13) and rear limiting faces (14) are formed on the jaw bodies located on two sides of the hinge holes of the step faces respectively, hinge shafts (15) penetrate through the hinge holes, the first clamping block is hinged to the front end part of the first jaw section, the second clamping block is hinged to the front end part of the second jaw section, and tension springs (16) are arranged between the first clamping block and the first jaw section and between the second clamping block and the second jaw section.

2. The engine hose clamp mounting clamp of claim 1, wherein the first and second clamp sections are each of a flat configuration, the first clamp section having a width in a radial plane of the central axis (9) that is greater than a thickness of the first clamp section in an axial direction of the central axis, the second clamp section having a width in the radial plane of the central axis that is greater than a thickness of the second clamp section in the axial direction of the central axis, and the thickness of the first clamp section being equal to the thickness of the second clamp section.

3. The engine hose band clamp mounting clamp of claim 2, wherein the first and second clamp segments have a twist feature formed at the forward end thereof, the twist feature having opposing clamp block mounting surfaces, the first and second clamp blocks being secured to the clamp block mounting surfaces, respectively.

4. The engine hose clamp mounting clamp of claim 2, wherein the first and second clamping blocks have a width in the axial direction of the central axis equal to the thickness of the first or second clamp segment.

5. The engine hose band clamp installation clamp of claim 1, wherein: the central plane of first centre gripping groove is located the axial direction central plane of first grip block hinge hole, and the central plane of second centre gripping groove is located the axial direction central plane of second grip block hinge hole, and the groove width of first centre gripping groove and second centre gripping groove and the thickness looks adaptation of engine hose clamp auricle all are equipped with spigot surface (17) with second centre gripping groove front end.

6. The engine hose band clamp installation clamp of claim 5, wherein: one side or two sides of the first clamping groove or the second clamping groove are provided with baffle plates (18) used for closing the lateral openings of the clamping grooves.

7. The engine hose band clamp installation clamp of claim 5, wherein: the contained angle between preceding spacing and the back spacing is the acute angle, when keeping silent of installation pincers and opening, the inboard side of first grip block and the inboard side of second grip block all with the back spacing butt that corresponds, contained angle alpha between the central plane of first centre gripping groove and the central plane of second centre gripping groove is 85 to 95 degrees, when keeping silent of installation pincers and closing, the inboard side of first grip block and the inboard side of second grip block all with the preceding spacing butt that corresponds, contained angle alpha between the central plane of first centre gripping groove and the central plane of second centre gripping groove is 10 to 20 degrees.

8. The engine hose band clamp installation clamp of any one of claims 1-4, wherein: the rear portion of pincers handle section is equipped with pincers handle cover (19), is located to be equipped with locking mechanism on the pincers handle section of pincers handle cover front side, locking mechanism is equipped with one-way locking sawtooth (22) of mutual adaptation including hinge locking handle (20) on first pincers handle section and latch segment (21) of fixing on the second pincers handle section, locking handle and the latch segment, still is equipped with torsional spring (23) that are used for compressing tightly the locking handle on the first pincers handle section, still is equipped with on the locking handle and presses splenium (24).

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