CN204662521U - A kind of joint meter damp type pretension fixing device - Google Patents

A kind of joint meter damp type pretension fixing device Download PDF

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Publication number
CN204662521U
CN204662521U CN201520275135.9U CN201520275135U CN204662521U CN 204662521 U CN204662521 U CN 204662521U CN 201520275135 U CN201520275135 U CN 201520275135U CN 204662521 U CN204662521 U CN 204662521U
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China
Prior art keywords
top board
base plate
threaded rod
joint meter
prestretching
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CN201520275135.9U
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Chinese (zh)
Inventor
彭浩
刘荣丽
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PowerChina Guiyang Engineering Corp Ltd
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PowerChina Guiyang Engineering Corp Ltd
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Abstract

The utility model discloses a kind of joint meter damp type pretension fixing device, belong to project security monitoring technical field, comprise base plate and top board, threaded rod is provided with between described base plate and top board, threaded rod one end is fixedly connected with base plate, the other end is through top board, top board can threadingly freely up and down slide by bar, threaded rod between base plate and top board be provided with two ends respectively with the stage clip of base plate and top plate contact, threaded rod above top board is provided with nut, and top board controls it by the precession of nut with back-out and moves freely on threaded rod.The technical program discharges thrust gradually by nut control stage clip and completes prestretching, there is the features such as stress release is even, dispose procedure is controlled, the artificial randomness solving the existence of existing method is difficult to greatly the problem controlling prestretching range, there will not be the situation of drawing bad joint meter, greatly can improve the prestretching quality of joint meter, ensure that integrity and the long-time stability of joint meter.

Description

A kind of joint meter damp type pretension fixing device
Technical field
The utility model belongs to project security monitoring technical field, relates to a kind of for hydraulic architecture shrinkage joint or the joint meter measured that cracks, especially relates to a kind of joint meter damp type pretension fixing device.
Background technology
For monitoring the folding situation of two adjacent concrete blocks or the relative displacement between concrete block and Rock And Soil, contact surface, usually need at its contact site Embedment and installation joint meter.Current joint meter should carry out prestretching to it before Embedment and installation, can ensure that the string wire of joint meter inside is in tight state on the one hand, improves apparatus installation quality; When joint meter self-condition allows, suitably can expand its range, thus meet engineering actual demand, give full play to effect of joint meter on the other hand.
The prestretching of current joint meter is all implement at the construction field (site), because on-the-spot prestretching substantially just rests on above written requirement, not yet have concrete method of operating and equipment, therefore usually site operation time the means taked have: 1. the free end of joint meter pulled out one section of general distance with iron wire and then fixes; 2. calculate prestretching range, do bamboo chip or the wood chip of several similar length according to this range, then with bamboo chip or wood chip, the free end of joint meter is propped up fixing by force.
Also there are some defects in above-mentioned joint meter prestretching mode, on the one hand, artificial prestretching is by once concentrating pulling force or once concentrating thrust, randomness is large and be difficult to control prestretching range, on the other hand, the stability of joint meter cannot be ensured because prestretching quality can not be ensured, even there is the risk of drawing bad joint meter.
Utility model content
The utility model provides a kind of joint meter damp type pretension fixing device, its processing is simple, cost of manufacture is low, applied widely, be easy to operation, can control prestretching process, time saving and energy saving, thus the joint meter prestretching quality in guarantee practice of construction, improve integrity and the long-time stability of joint meter.
The utility model is achieved by following technical solution.
A kind of joint meter damp type pretension fixing device, comprise base plate and top board, threaded rod is provided with between described base plate and top board, described threaded rod one end is fixedly connected with base plate, the other end is through top board, and top board can threadingly freely up and down slide by bar, the threaded rod between base plate and top board be provided with two ends respectively with the stage clip of base plate and top plate contact, threaded rod above top board is provided with nut, and top board controls it by the precession of nut with back-out and moves freely on threaded rod.
Further, described base plate and top board are " U-shaped ".
Further, the link position of described threaded rod and base plate and top board is " U-shaped " curved side center, and threaded rod is vertical with top board with base plate.
Further, described base plate and top board side are equipped with lock-screw.
Further, the drift of described stage clip is greater than the length after the maximum prestretching of joint meter.
The beneficial effects of the utility model are:
A kind of joint meter damp type pretension fixing device described in the utility model, its beneficial effect is:
1, discharge thrust gradually by nut control stage clip and complete prestretching, there is the features such as stress release is even, dispose procedure is controlled, the artificial randomness solving the existence of existing method is difficult to greatly the problem controlling prestretching range, there will not be the situation of drawing bad joint meter, greatly can improve the prestretching quality of joint meter, ensure that integrity and the long-time stability of joint meter.
2, threaded rod cut to lengthen of the present invention prestretching range, and the scope of achievable prestretching range is wide, therefore all applicable to the demand of a lot of engineering, has good practicality and applicability widely.
3, this device is simply stressed, and stress level is little, less demanding to each component materials, and again because its structure is simple, easy processing and fabricating, therefore cost of manufacture is low, and operation is also very simple, time saving and energy saving.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-base plate, 2-threaded rod, 3-stage clip, 4-top board, 5-nut, 6-lock-screw.
Detailed description of the invention
The technical solution of the utility model is further described below in conjunction with accompanying drawing, but described in claimed scope is not limited to.
As shown in Figure 1, a kind of joint meter damp type pretension fixing device described in the utility model, comprise base plate 1 and top board 4, threaded rod 2 is provided with between described base plate 1 and top board 4, described threaded rod 2 one end is fixedly connected with base plate 1, the other end is through top board 4, top board 4 can threadingly freely up and down slide by bar 2, threaded rod 2 between base plate 1 and top board 4 is provided with the stage clip 3 that two ends contact with top board 4 with base plate 1 respectively, threaded rod 2 above top board 4 is provided with nut 5, and top board 4 controls it by the precession of nut 5 with back-out and moves freely on threaded rod 2.
Described base plate 1 and top board 4 are " U-shaped ", and described threaded rod 2 is " U-shaped " curved side center with the link position of base plate 1 and top board 4, and threaded rod 2 is vertical with top board 4 with base plate 1.
Described base plate 1 and top board 4 side are equipped with lock-screw 6, and lock-screw 6 penetrates from base plate 1 and top board 4 side.
The drift of described stage clip 3 is greater than the length after the maximum prestretching of joint meter, to ensure that joint meter meets the requirements of prestretching length.
During work, rotating nut 5, compression press spring 3 is to suitable length, respectively base plate 1 be connected with joint meter fixed end and free end respectively with top board 4 and be locked by lock-screw 6, opposite spin nut 5, discharges the elastic force of stage clip 3 gradually, promotes top board 4 and slowly steadily separates with base plate 1, when the calculating prestretching length soon close to joint meter, now precession or back-out nut 5 can precisely complete prestretching work further.
Embodiment
Suppose that joint meter prestretching range is L, so first, by nut 5 precession one section of distance slightly larger than L on threaded rod 2 top, stage clip 3 is made to be in compressive state, then base plate 1 is enclosed within the fixed end of joint meter, the lock-screw 6 screwing base plate 1 side is locked, then top board 4 is enclosed within the free end of joint meter, the lock-screw 6 screwing top board 4 side is locked; Then, slowly screw out the nut 5 on threaded rod 2 top, under the resilient force of stage clip 3, the free end of joint meter is slowly released by top board 4, when close to prestretching range L, the reading that reading joint meter shows can obtain the actual range L ' that now joint meter is stretched; If L ' < is L, then continue to screw out nut 5, until L ' ≈ L can stop; If L ' > L, then prestretching has exceeded joint meter and has calculated prestretching range, now by precession nut 5, spring 3 is relaxed, joint meter free end can under the effect of therein pulling force automatic retracted, until L ' ≈ L can stop.By aforesaid operations, the prestretching process of joint meter accurately can be controlled.

Claims (5)

1. a joint meter damp type pretension fixing device, comprise base plate (1) and top board (4), it is characterized in that: between described base plate (1) and top board (4), be provided with threaded rod (2), described threaded rod (2) one end is fixedly connected with base plate (1), the other end is through top board (4), top board (4) can threadingly freely up and down slide by bar (2), threaded rod (2) between base plate (1) and top board (4) is provided with the stage clip (3) that two ends contact with top board (4) with base plate (1) respectively, the threaded rod (2) of top board (4) top is provided with nut (5), top board (4) controls it by the precession of nut (5) with back-out and moves freely on threaded rod (2).
2. a kind of joint meter damp type pretension fixing device according to claim 1, is characterized in that: described base plate (1) and top board (4) are " U-shaped ".
3. a kind of joint meter damp type pretension fixing device according to claim 2, it is characterized in that: described threaded rod (2) is " U-shaped " curved side center with the link position of base plate (1) and top board (4), and threaded rod (2) is vertical with top board (4) with base plate (1).
4. a kind of joint meter damp type pretension fixing device according to claim 1, is characterized in that: described base plate (1) and top board (4) side are equipped with lock-screw (6).
5. a kind of joint meter damp type pretension fixing device according to claim 1, is characterized in that: the drift of described stage clip (3) is greater than the length after the maximum prestretching of joint meter.
CN201520275135.9U 2015-04-30 2015-04-30 A kind of joint meter damp type pretension fixing device Active CN204662521U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520275135.9U CN204662521U (en) 2015-04-30 2015-04-30 A kind of joint meter damp type pretension fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520275135.9U CN204662521U (en) 2015-04-30 2015-04-30 A kind of joint meter damp type pretension fixing device

Publications (1)

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CN204662521U true CN204662521U (en) 2015-09-23

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CN201520275135.9U Active CN204662521U (en) 2015-04-30 2015-04-30 A kind of joint meter damp type pretension fixing device

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106995173A (en) * 2016-01-22 2017-08-01 株式会社日立制作所 The restored method of restraint device, the elevator for possessing restraint device and restraint device
CN109781324A (en) * 2019-01-07 2019-05-21 中国石油天然气股份有限公司 Pipeline meter Sai Si stress monitoring system and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106995173A (en) * 2016-01-22 2017-08-01 株式会社日立制作所 The restored method of restraint device, the elevator for possessing restraint device and restraint device
CN106995173B (en) * 2016-01-22 2019-03-15 株式会社日立制作所 The restored method of restraint device, the elevator for having restraint device and restraint device
CN109781324A (en) * 2019-01-07 2019-05-21 中国石油天然气股份有限公司 Pipeline meter Sai Si stress monitoring system and method

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