CN212145326U

CN212145326U - Center frame with pre-tightening function

Info

Publication number: CN212145326U
Application number: CN202020494018.2U
Authority: CN
Inventors: 赵金刚; 魏红强
Original assignee: Lanzhou Guangcheng Electromechanical Manufacturing Co ltd
Current assignee: Lanzhou Guangcheng Electromechanical Manufacturing Co ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2020-12-15
Anticipated expiration: 2030-04-08

Abstract

The utility model relates to a centre frame with pretension function, including last semicircle clamp and the lower semicircle clamp of carrying out articulated connection with last semicircle clamp one side, the bottom both sides of semicircle clamp are provided with fixed stabilizer blade down, still including being used for carrying out the pretension subassembly of pretension centre gripping to the centre gripping thing and avoiding causing the buffering subassembly of scraping the damage to the centre gripping thing surface. This centre frame with pretension function, through supplementary semicircle clamp body, flexible lagging, reset spring, the cooperation of expansion plate and splint is used, thereby it is great to the pipe diameter effectively to have solved traditional centre frame, before the heavier centre gripping of quality thing is carried out fixedly, can utilize coherent mechanical structure to carry out pretension centre gripping supporting role to the centre gripping thing in advance, in order to ensure that follow-up is pressing from both sides the fastening timing to the centre gripping thing, thereby avoid the centre gripping thing fixed before and the relatively poor problem of stability appears as far as, in order to reach the condition of avoiding the centre gripping thing landing to appear in the centre frame inboard.

Description

Center frame with pre-tightening function

Technical Field

The utility model relates to a centre frame technical field, concretely relates to centre frame with pretension function.

Background

With the continuous development of the times, the center frame has become an indispensable important tool in the field of machining, however, some disadvantages gradually appear in the actual use process of the conventional center frame, and the appearance of the disadvantages directly causes that the conventional center frame can not meet the high-standard use requirements in the current mechanical field, and the disadvantages of the conventional center frame are explained as follows:

traditional centre frame is in the use, when directly the centre gripping is fixed to the great, the heavier centre gripping thing of quality of pipe diameter, often unable person of facilitating the use operates, often can't tentatively fix the centre gripping thing before fixed to the centre gripping thing centre gripping, under the unable stable condition of centre gripping thing, very easily the phenomenon of landing appears, causes the threat to staff's life safety on every side moreover.

Therefore, it is important to design a new center frame with a pre-tightening function to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the present invention is to provide a center frame with a pre-tightening function, so as to solve the problem that the clamped object is easily unstable before the clamped object is clamped and fixed in the conventional center frame in the prior art.

The utility model discloses a following technical scheme realizes:

a center frame with a pre-tightening function comprises an upper semicircular clamp body and a lower semicircular clamp body hinged with one side of the upper semicircular clamp body, wherein fixing support legs are arranged on two sides of the bottom end of the lower semicircular clamp body;

the pre-tightening assembly comprises an auxiliary semicircular clamp body and support assemblies symmetrically arranged at two ends of the inner side of the auxiliary semicircular clamp body, two groups of the support assemblies are oppositely arranged in an included angle to form a support clamping force for the bottom of a clamped object, each support assembly comprises a telescopic sleeve plate fixedly arranged at two ends of the inner side of the auxiliary semicircular clamp body, a reset spring arranged at the bottom end of the inner part of each telescopic sleeve plate and a telescopic plate movably telescopic at the inner side of each telescopic sleeve plate and fixedly connected with the corresponding reset spring, and a clamping plate is arranged at the end part of each telescopic plate through a hinge;

the telescopic assembly comprises telescopic rods fixedly arranged on two sides of one end of the auxiliary semicircular clamp body, at least two elastic limit keys fixedly arranged on the telescopic rods and accommodating grooves which are formed in two sides of one end of the lower semicircular clamp body and used for telescopically accommodating the telescopic rods, and limit holes which penetrate through the inner sides of the accommodating grooves and are mutually clamped with the elastic limit keys are formed in the surfaces of two sides of the lower semicircular clamp body;

the two sides of the bottom end of the auxiliary semicircular clamp body are provided with fixing support legs, the other sides of the upper semicircular clamp body and the lower semicircular clamp body are fixedly connected through a thread mechanism, and the thread mechanism comprises a through hole plate, a thread bolt and a first nut, wherein the through hole plate is respectively arranged on the other sides of the upper semicircular clamp body and the lower semicircular clamp body, the thread bolt penetrates through and stretches out of the inner side of a through hole on the surface of the through hole plate, and the first nut is sleeved at the bottom of the thread bolt and used for fixing the thread bolt;

the bottom of the lower semicircular clamp body is provided with a thread groove, a threaded rod in threaded connection with the thread groove penetrates through the thread groove in a telescopic manner, and the top of the threaded rod is provided with a supporting plate for supporting a clamped object at a fixed point;

go up the both sides at semicircle clamp body top and seted up the thread groove, the buffering subassembly is including running through flexible in the thread groove inboard with the thread groove carry out threaded connection's screw thread loop bar, flexible set up in the inboard movable rod of screw thread loop bar and fixed set up in the movable rod top and flexible piston of accomodating in the screw thread loop bar inside, the ventilation hole has been seted up on the surface of screw thread loop bar, and the shutoff has the cock body on the ventilation hole.

Further, a grabbing plate is arranged at the top of the threaded sleeve rod.

Furthermore, a lifting plate is arranged at the top of the upper semicircular clamp body.

Further, still including the adjusting part that is used for increasing the holding thing stability, adjusting part is including setting up in the fixed plate of movable rod bottom and holding thing direct contact, set up in two sets of concave type baffles of fixed plate both sides and be used for increasing with the arc of holding thing area of contact, every group concave type baffle is provided with two baffles and symmetric distribution in both ends around fixed plate one side, two the baffle constitutes concave type space with the fixed plate, the arc passes through the locking Assembly activity and sets up between two adjacent baffles.

Further, a through hole is formed in the partition plate, and the locking assembly comprises a screw rod and a second nut, wherein the screw rod and the second nut are arranged at the bottom end of the arc plate and sequentially penetrate through the two through holes, and one end of the screw rod is sleeved with the second nut, so that the second nut is used for fixing the screw rod.

The beneficial effects of the utility model reside in that:

1. the center frame with the pre-tightening function is used by matching the auxiliary semicircular clamp body, the telescopic sleeve plate, the return spring, the telescopic plate and the clamping plate, before clamping and fixing the clamped object, a person skilled in the art can place the clamped object between the two clamping plates, and utilize the elasticity of the return spring to generate a counterforce to the retractable plate, at the moment, an included angle formed by the two oppositely arranged clamping plates, the clamping and supporting force can be formed at the bottom of the clamping object, thereby effectively solving the problems that the traditional center frame is not suitable for clamping and fixing the clamping object with larger pipe diameter and heavier mass, can utilize a coherent mechanical structure to pre-tighten, clamp and support the clamped object in advance so as to ensure that the clamped object is clamped and fastened at the subsequent time, therefore, the problem of poor stability before the clamped objects are fixed is avoided as much as possible, and the situation that the clamped objects slide down on the inner side of the central frame is avoided.

2. This centre frame with pretension function, through the telescopic link, elasticity spacing key, accomodate the cooperation in groove and spacing hole and use, can be convenient for adjust supplementary semicircle clamp and the distance between the semicircle clamp down, when needs carry this device, can contract the telescopic link in the inboard of accomodating the groove as far as, in order to reach the purpose that the person of facilitating the use carried, when needs carry this device to use, extend the telescopic link again, in order to reach the purpose of being convenient for fix the preliminary pretension of clip object.

3. The center frame with the pre-tightening function is used by matching the threaded sleeve rod, the movable rod, the piston and the plug body, when a worker needs to clamp and fasten a clamped object, the plug body can be pulled out firstly, then the threaded sleeve rod is rotated to move downwards until the movable rod is contacted with the clamped object, at the moment, if the worker operates the threaded sleeve rod continuously by mistake, the piston compresses gas in the threaded sleeve rod to be discharged through the air opening, the piston continuously drives the movable rod to move upwards, after knowing that the worker finds that the clamped object is fixedly contacted, the piston can be plugged into the inner side of the air opening again, at the moment, the piston can be prevented from continuously moving by utilizing the gas pressure in the threaded sleeve rod to ensure that the movable rod applies clamping and fixing force to the clamped object, compared with the traditional center frame, the technical scheme of the application effectively solves the problem that when the worker operates by mistake, can avoid scraping the outer surface of the clamping object.

In short, the technical scheme of the application solves the problem that the clamped object cannot be stabilized easily before the clamped object is clamped and fixed by the traditional center frame through a coherent and compact structure.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

Fig. 1 is a first perspective view of the present invention;

fig. 2 is a second perspective view of the present invention;

fig. 3 is a third perspective view of the present invention;

fig. 4 is a fourth perspective view of the present invention;

fig. 5 is a fifth perspective view of the present invention;

fig. 6 is a front view of the present invention;

fig. 7 is a partial sectional view of the telescopic sleeve plate of the present invention;

fig. 8 is a partial cross-sectional view of the threaded rod of the present invention.

In the figure: 1. an upper semicircular clamp body; 2. a lower semi-circular clamp body; 3. a screw mechanism; 301. a threaded bolt; 302. a through hole plate; 303. a first nut; 4. a buffer assembly; 401. a threaded rod; 402. a movable rod; 403. a piston; 5. grabbing a plate; 6. lifting the plate; 7. a telescoping assembly; 701. an elastic limit key; 702. a telescopic rod; 8. a pre-tightening assembly; 801. an auxiliary semi-circular clamp body; 9. a support assembly; 901. a telescopic sleeve plate; 902. a retractable plate; 903. a return spring; 10. a splint; 11. an adjustment assembly; 1101. a fixing plate; 1102. a partition plate; 1103. an arc-shaped plate; 12. a locking assembly; 1201. a second nut; 1202. a screw.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the above description of the present invention, it should be noted that the terms "one side" and "the other side" are used for indicating the position or the positional relationship based on the position or the positional relationship shown in the drawings, or the position or the positional relationship which is usually placed when the product of the present invention is used, only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the indicated device or element must have a specific position, be constructed and operated in a specific position, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Further, the term "identical" and the like do not mean that the components are absolutely required to be identical, but may have slight differences. The term "perpendicular" merely means that the positional relationship between the components is more perpendicular than "parallel", and does not mean that the structure must be perfectly perpendicular, but may be slightly inclined.

Referring to fig. 1-8, the present invention provides a technical solution: a center frame with a pre-tightening function comprises an upper semicircular clamp body 1 and a lower semicircular clamp body 2 hinged with one side of the upper semicircular clamp body 1, wherein fixing support legs are arranged on two sides of the bottom end of the lower semicircular clamp body, a pre-tightening assembly 8 used for pre-tightening and clamping a clamped object and a buffer assembly 4 used for avoiding scraping damage to the outer surface of the clamped object are further included;

the pre-tightening assembly 8 comprises an auxiliary semicircular clamp body 801 and support assemblies 9 symmetrically arranged at two ends of the inner side of the auxiliary semicircular clamp body, two groups of support assemblies are oppositely arranged at an included angle to form a support clamping force for the bottom of a clamped object, each support assembly 9 comprises a telescopic sleeve plate 901 fixedly arranged at two ends of the inner side of the auxiliary semicircular clamp body 801, a reset spring 903 arranged at the bottom end of the inner part of each telescopic sleeve plate and a telescopic plate 902 movably and telescopically arranged at the inner side of each telescopic sleeve plate and fixedly connected with the reset spring, a clamp plate 10 is arranged at the end part of each telescopic plate through a hinge, when a user clamps a clamped object with a large pipe diameter and heavy mass, the clamped object can be firstly arranged at the inner side of the semicircular clamp body, the clamped object is directly contacted with the clamp plate 10 at the moment, the clamped object is transmitted to the reset spring through the clamp plate and the telescopic plates, the reset spring starts to, the two telescopic sleeve plates are arranged in an inclined opposite manner as shown in the attached figure 1 of the specification, and an included angle formed by the inclined opposite telescopic sleeve plates and the elastic counterforce of the reset spring can form a clamping supporting force on the bottom of a clamped object, so that the aim of pre-tightening the clamped object is fulfilled;

the telescopic assembly 7 is used for adjusting the distance between the auxiliary semicircular clamp body and the lower semicircular clamp body, and comprises a telescopic rod 702 fixedly arranged on two sides of one end of the auxiliary semicircular clamp body, at least two elastic limit keys 701 fixedly arranged on the telescopic rod and a containing groove which is arranged on two sides of one end of the lower semicircular clamp body and used for containing the telescopic rod in a telescopic way, wherein the two side surfaces of the lower semicircular clamp body are provided with limit holes which are penetrated to the inner side of the containing groove and mutually clamped with the elastic limit keys, when the lower semicircular clamp body and the auxiliary semicircular clamp body are required to be close to each other so as to be convenient for a user to carry, the elastic limit keys can be pressed, the telescopic rod is contracted on the inner side of the containing groove until the last elastic limit key close to the auxiliary semicircular clamp body is clamped to the inner side of the limit holes, the auxiliary semicircular clamp body is formed to be closest to the lower semicircular clamp body distance, and when the telescopic, The practical condition of quality, when needing to prolong supplementary semicircle clamp and carrying out the tight operation of clamp in advance to the holder, can press the block to the inboard elasticity spacing key in spacing hole, and drag the telescopic link, after reaching required length, with suitable elasticity spacing key block to the inboard in spacing hole, guarantee from this that supplementary semicircle clamp is fixed mutually with lower semicircle clamp, the elasticity spacing key that this application mentions in the utility model case of authorizing to disclose "a building construction simulation device based on BIM" (CN208281424U), has disclosed the structural principle of elasticity spacing key, so this application is no longer repeated to this and is repeated the repeated description;

the two sides of the bottom end of the auxiliary semicircular clamp body are provided with fixed support legs, the other sides of the upper semicircular clamp body and the lower semicircular clamp body are fixedly connected through a screw mechanism 3, the screw mechanism 3 comprises a through hole plate 302 respectively arranged at the other sides of the upper semicircular clamp body and the lower semicircular clamp body, a screw bolt 301 penetrating and extending into the inner side of a through hole on the surface of the through hole plate, and a first screw cap 303 sleeved at the bottom of the screw bolt for fixing the screw bolt, wherein the first screw cap can be rotated firstly before clamping and fixing a clamped object, the first screw cap is taken out, the screw bolt can move at the moment, a user takes out the screw bolt, the upper semicircular clamp body and the lower semicircular clamp body are in a movable state, the upper semicircular clamp body is rotated to be in an unfolded state at the moment, then the clamped object is placed into the inner sides of the centers of the upper semicircular clamp body and the lower semicircular clamp body, and the clamped object is also stored in the inner side of the auxiliary semicircular clamp, then, the upper semicircular clamp body is rotated again until the two through hole plates are symmetrical, the threaded bolt is inserted into the inner sides of the two through holes again in sequence, and the bottom of the threaded bolt is screwed down through the first screw cap so as to achieve the purpose of fixing the device, so that the phenomenon that the upper semicircular clamp body and the lower semicircular clamp body are loosened in the process of clamping and fixing a clamped object can be avoided;

the bottom of the lower semicircular clamp body is provided with a thread groove, a threaded rod in threaded connection with the thread groove penetrates through the thread groove in a telescopic mode, a supporting plate for supporting a clamped object at a fixed point is arranged at the top of the threaded rod, the threaded rod can freely move up and down by rotating the threaded rod, and therefore the purpose of supporting the bottom of the clamped object by the supporting plate is achieved;

the two sides of the top of the upper semicircular clamp body are provided with thread grooves, the buffer component 4 comprises a thread loop bar 401 which penetrates through the inner side of the thread grooves and is in threaded connection with the thread grooves, a movable rod 402 which is arranged on the inner side of the thread loop bar in a telescopic way, and a piston 403 which is fixedly arranged at the top end of the movable rod and is accommodated in the thread loop bar in a telescopic way, the surface of the thread loop bar is provided with a vent hole, and a plug body is plugged on the vent hole, when a worker needs to clamp and fasten a clamped object, the plug body can be firstly pulled out, at the moment, gas in the thread loop bar can freely circulate through the vent hole, then the worker rotates the thread loop bar to enable the thread loop bar to move downwards until the movable bar is contacted with the clamped object, at the moment, if the worker continuously rotates the thread loop bar by mistake, the piston compresses the gas in the thread loop bar to, when the worker knows that the fixed contact of the clamping object is achieved, the piston can be plugged into the inner side of the vent hole again immediately, and the piston can be prevented from moving continuously by utilizing the gas pressure in the threaded sleeve rod to ensure that the movable rod applies clamping fixing force to the clamping object.

The utility model discloses in: the top of screw thread loop bar is provided with grabs board 5, and the staff of can being convenient for here is held the grabs the board and is rotated the screw thread loop bar in hand to staff's use comfort has been improved.

The utility model discloses in: the top of the upper semicircular clamp body is provided with a lifting plate 6, and the description can refer to the attached drawings 1-6, and workers can carry the device by the lifting plate.

The utility model discloses in: the clamping device comprises a movable rod, a clamping object and a regulating assembly 11, wherein the regulating assembly comprises a fixing plate 1101 arranged at the bottom of the movable rod and in direct contact with the clamping object, two groups of concave partition plates arranged on two sides of the fixing plate and an arc plate 1103 used for increasing the contact area with the clamping object, each group of concave partition plates is provided with two partition plates 1102 and symmetrically distributed at the front end and the rear end of one side of the fixing plate, the two partition plates and the fixing plate form a concave space, the arc plate is movably arranged between the two adjacent partition plates through a locking assembly 12, when a worker rotates a threaded sleeve rod to enable the threaded sleeve rod to move downwards to apply clamping fixing force on the clamping object, the arc plate can be regulated to rotate through the locking assembly, the arc plate is enabled to be tightly attached to the outer surface of the clamping object, the contact area when the center frame and the clamping object are fixed is increased, The stability of the clamping object with heavier mass when the center frame clamps and fastens the clamping object.

The utility model discloses in: the through-hole has been seted up on the baffle, locking assembly 12 is located screw rod one end and is used for carrying out the second nut 1201 fixed to the screw rod including setting up in the arc bottom and running through two through-holes in proper order with the cover, when the staff need rotate the arc and contact fixedly with the centre gripping thing surface, can become flexible the second nut earlier, the screw rod can free activity this moment, rotate the screw rod afterwards and drive the arc and rotate in the lump, until hugging closely the arc in the surface of centre gripping thing, screw up the one end in the screw rod once more with the second nut afterwards, in order to reach the fixed purpose of screw rod, the rotation and the fixing of arc have then been accomplished from this.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a centre frame with pretension function, includes the semicircle clamp and carries out the lower semicircle clamp of articulated connection with last semicircle clamp one side, the bottom both sides of semicircle clamp are provided with fixed stabilizer blade, its characterized in that down: the device also comprises a pre-tightening component used for pre-tightening and clamping the clamped object and a buffer component used for avoiding scraping the outer surface of the clamped object;

2. The center frame with the pre-tightening function according to claim 1, wherein: and a grabbing plate is arranged at the top of the threaded sleeve rod.

3. The center frame with the pre-tightening function according to claim 1, wherein: and a lifting plate is arranged at the top of the upper semicircular clamp body.

4. A center frame with a pre-tightening function according to any one of claims 1 to 3, wherein: still including the adjusting part who is used for increasing the holding thing stability, adjusting part is including setting up in movable rod bottom and holding thing direct contact's fixed plate, setting up in two sets of concave type baffles of fixed plate both sides and be used for increasing with the arc of holding thing area of contact, every group concave type baffle is provided with two baffles and symmetric distribution in both ends around fixed plate one side, two the baffle constitutes concave type space with the fixed plate, the arc passes through the locking Assembly activity and sets up between two adjacent baffles.

5. The center frame with the pre-tightening function according to claim 4, wherein: the through-hole has been seted up on the baffle, locking Assembly is located screw rod one end and is used for carrying out the second nut fixed to the screw rod including setting up in the arc bottom and running through two through-holes in proper order and cover.