CN212398589U - Chain type self-locking device - Google Patents
Chain type self-locking device Download PDFInfo
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- CN212398589U CN212398589U CN202022022876.XU CN202022022876U CN212398589U CN 212398589 U CN212398589 U CN 212398589U CN 202022022876 U CN202022022876 U CN 202022022876U CN 212398589 U CN212398589 U CN 212398589U
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- adjusting screw
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Abstract
The utility model discloses chain self-lock device belongs to the piping erection field to realize the free convenient regulation in clearance between oversleeve, axle sleeve and pipeline. Comprises an adjusting screw, a screw seat, a lifting fixture block and a chain; the adjusting screw is vertically arranged on the screw seat; the axis of the adjusting screw is taken as a rotating shaft, and the adjusting screw is connected with the screw seat in a rotating fit manner; the lifting clamping block is sleeved on the adjusting screw and is in threaded fit connection with the adjusting screw; the two ends of the lifting clamping block are respectively provided with a clamping groove which is communicated along the thickness direction of the lifting clamping block, one end of the chain is clamped in one clamping groove, and the other end of the chain is clamped in the other clamping groove. The utility model discloses, avoided ground bearing structure's input, not only be applicable to ground piping erection, still be applicable to high altitude piping erection. The purpose of adjusting the clearance between the pipeline and the shaft sleeve can be achieved by adjusting the tightness degree of the pipeline and the shaft sleeve bound by the adjusting chains.
Description
Technical Field
The utility model belongs to the pipeline installation field, it is specific chain self-lock device.
Background
The support guard plate on the pipeline is usually constructed in a way that the support guard plate is hoisted to an installation position by using a crane and then a support is erected below the support so that the support guard plate is fixed at the bottom of the pipeline. Because the support backplate generally requires to weld on the pipeline, has strict demand to the clearance between support backplate and the pipeline before the welding, so need adjust support backplate and below repeatedly and support to satisfy the welding seam clearance requirement. When the brace is heavy, adjustment of the brace can be very difficult. Particularly, when the installation position is high, the erection of the support below can be a heavy task, and even the support needs to be subjected to load bearing and stability evaluation, which undoubtedly delays the operation time.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a problem of the clearance adjustment difficulty between solving traditional support backplate and the pipeline, provide a chain self-lock device to realize the free convenient regulation in clearance between support backplate and pipeline.
The utility model adopts the technical proposal that: the chain type self-locking device comprises an adjusting screw, a screw seat, a lifting clamping block and a chain;
the bottom end of the adjusting screw is arranged on the screw seat, and the top end of the adjusting screw is vertical to the base and extends upwards; the adjusting screw is in rotating fit connection with the screw seat by taking the axis of the adjusting screw as a rotating shaft, and a limiting structure for limiting the adjusting screw along the axial direction of the adjusting screw is arranged between the adjusting screw and the screw seat;
the lifting fixture block is sleeved on the adjusting screw and is in threaded fit connection with the adjusting screw; the two ends of the lifting clamping block are respectively provided with a clamping groove which is communicated along the thickness direction of the lifting clamping block, one end of the chain is clamped in one clamping groove, and the other end of the chain is clamped in the other clamping groove.
Furthermore, a threaded hole matched with the adjusting screw on the lifting fixture block is formed in the middle of the lifting fixture block, and the two clamping grooves are arranged on two sides of the threaded hole in the lifting fixture block and are symmetrical about the threaded hole; and the connecting line of the centers of the threaded hole and the two clamping grooves is a straight line.
Furthermore, the clamping groove is in a cross shape and comprises a transverse groove extending along the connecting line direction of the threaded hole and the centers of the two clamping grooves and a longitudinal groove perpendicular to the transverse groove; one end of the transverse groove penetrates through one end of the lifting clamping block adjacent to the clamping groove along the connecting line direction of the threaded hole and the centers of the two clamping grooves; the longitudinal groove is in a funnel shape gradually contracting from top to bottom.
Furthermore, the screw seat comprises a seat body and an end cover, wherein the seat body is provided with a groove, the end cover is detachably connected to the seat body through a groove opening section of the groove, the end cover is provided with a through hole coaxial with the groove, and the diameter of the through hole is smaller than that of the groove;
the adjusting screw comprises a screw rod part and a cylindrical connecting part positioned at the bottom end of the screw rod part; connecting portion and recess looks adaptation, and swing joint in the recess, screw rod portion passes the through-hole, by the end cover cooperatees with connecting portion and constitutes limit structure.
Furthermore, the screw rod seat further comprises a base, and the opposite end of the screw rod seat, which is connected with the adjusting screw rod, is connected with the base in a welding mode.
Further, the base is arc-shaped and matched with the pipeline.
Further, along the base axial, the base is the I shape, includes the support bar at both ends and the backup pad at middle part, the screw rod seat is fixed in the backup pad.
Furthermore, a square spanner part is arranged at the top of the adjusting screw rod.
The utility model has the advantages that: the utility model discloses a chain formula self-lock device through the setting of chain and lift fixture block, can play the effect of binding pipeline and support backplate to the support backplate purpose of realizing the support has avoided ground bearing structure's input, not only is applicable to ground piping erection, still is applicable to high altitude piping erection.
The lifting clamping block is driven by the adjusting screw rod to move axially along the adjusting screw rod, so that the tightness degree of the pipeline and the support guard plate bound by the adjusting chain is adjusted, and the purpose of adjusting the gap between the pipeline and the support guard plate is achieved.
The chain type self-locking device mainly comprises a chain, an adjusting screw, a screw seat, a lifting clamping block and a chain, and all the components are small in size, small in occupied space and easy to store and unload; all parts are conventional parts, so that the chain type self-locking device is easy to obtain and simple to manufacture; when the adjustable support is used, the purposes of adjusting support and adjustment can be achieved by rotating the adjusting screw rod, and the operation is convenient.
Drawings
FIG. 1 is a front view of the present chain type self-locking device;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a left side view of FIG. 1;
FIG. 4 is a schematic view of the chain type self-locking device;
FIG. 5 is an enlarged view of a portion of FIG. 2;
FIG. 6 is a partial enlarged view of the chain inserted into the slot at B of FIG. 3;
FIG. 7 is a partial enlarged view of FIG. 3 at B when the chain is fastened to the slot;
FIG. 8 is a schematic view of the adjustment screw engaging the screw seat;
fig. 9 is a schematic view of a structure of the base, the adjusting screw, the screw seat and the lifting block.
In the figure, the base 1, the supporting strip 11, the supporting plate 12, the screw rod seat 2, the seat body 21, the groove 211, the end cover 22, the through hole 221, the adjusting screw rod 3, the connecting portion 31, the screw rod portion 32, the wrench portion 33, the lifting fixture block 4, the connecting portion 4A, the limiting portion 4B, the threaded hole 41, the clamping groove 42, the transverse groove 421, the longitudinal groove 422, the chain 5, the pipeline 6 and the support guard plate 7.
Detailed Description
The invention is further described below with reference to the following figures and examples:
the chain type self-locking device, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, comprises an adjusting screw 3, a screw seat 2, a lifting fixture block 4 and a chain 5;
the bottom end of the adjusting screw rod 3 is arranged on the screw rod seat 2, and the top end of the adjusting screw rod is vertical to the base 1 and extends upwards; the axis of the adjusting screw 3 is taken as a rotating shaft, the adjusting screw 3 is connected with the screw seat 2 in a rotating fit manner, and a limiting structure for limiting the adjusting screw 3 along the axial direction of the adjusting screw 3 is arranged between the adjusting screw 3 and the screw seat 2;
the lifting fixture block 4 is sleeved on the adjusting screw rod 3 and is in threaded fit connection with the adjusting screw rod 3; the two ends of the lifting clamping block 4 are respectively provided with a clamping groove 42 which is communicated along the thickness direction of the lifting clamping block 4, one end of the chain 5 is clamped in one clamping groove 42, and the other end of the chain is clamped in the other clamping groove 42.
The utility model discloses a chain formula self-lock device is connected with 2 normal running fit of screw rod seat through adjusting screw 3 for after the position relatively fixed of screw rod seat 2, adjusting screw 3 can be around its axis rotation, cooperates limit structure's setting, makes along adjusting screw 3 axial, and adjusting screw 3 is fixed with the relative position of screw rod seat 2, and adjusting screw 3 can only be at the normal position rotation promptly. Through lift fixture block 4 and 3 screw-thread fit connections of adjusting screw, and the both ends of lift fixture block 4 are connected with chain 5, so, 5 endotheca of chain are equipped with pipeline 6 etc. and carry out under the spacing circumstances, and carry out under the spacing circumstances at other current conventional modes, lift fixture block 4 can not follow adjusting screw 3 and rotate, and can reciprocate along adjusting screw 3, realize that 5 bindes pipeline 6 of chain and support backplate 7, it is fixed to play the support of support backplate 7, and can realize the tight loose degree regulation of binding, reach the purpose in adjusting pipeline 6 and support backplate 7 clearance. And the arrangement of the clamping groove 42 is beneficial to the installation and the disassembly of the chain 5. The chain type self-locking device is simple in structure, can achieve the purpose of adjustment through forward rotation and reverse rotation of the adjusting screw rod 3, and is convenient to adjust.
In order to uniformly distribute the force during adjustment, preferably, as shown in fig. 9, a threaded hole 41 in the lifting fixture block 4, which is adapted to the adjusting screw 3, is provided in the middle of the lifting fixture block 4, and two clamping grooves 42 are respectively located on two sides of the threaded hole 41 in the lifting fixture block 4 and are symmetrical with respect to the threaded hole 41; and the connecting line of the centers of the threaded hole 41 and the two clamping grooves 42 is a straight line.
The locking groove 42 may be T-shaped, but in order to enable the independent limiting of the chain 5, preferably, the locking groove 42 is cross-shaped, and includes a transverse groove 421 extending along a line connecting the threaded hole 41 and the centers of the two locking grooves 42, and a longitudinal groove 422 perpendicular to the transverse groove 421; one end of the transverse groove 421 penetrates through one end of the lifting clamping block 4 adjacent to the clamping groove 42 along the connecting line direction of the threaded hole 41 and the centers of the two clamping grooves 42; the longitudinal groove 422 is in a funnel shape gradually shrinking from top to bottom.
In use, as shown in fig. 6, one of the links of the chain 5 is laterally centered in the opening of the transverse slot 421 and placed in the transverse slot 421, and then, as shown in fig. 7, the previous link of the link is adjusted so that the two links are perpendicular to each other, thereby locking the links in the locking slots 42 due to the size of the longitudinal slots 422. This structure, the input that need not other spare parts between draw-in groove 42 and the chain 5, spacing, simple easy operation is carried out through self structure.
In order to ensure that the lifting fixture block 4 can be well matched with each chain ring of the chain 5 in the thickness direction, preferably, the lifting fixture block 4 comprises a connecting part 4A in the middle and limiting parts 4B on two sides in the length direction; the threaded hole 41 is provided in the connecting portion 4A; the upper surface of the limiting part 4B is in a downward sunken V shape, and the lower surface of the limiting part 4B is in an upward sunken inverted V shape; the longitudinal groove 422 is provided in the stopper portion 4B. The design of the 4BV profile of the limiting part ensures the strength of the lifting fixture block 4 and can well meet the installation and adjustment requirements of chain rings. The length direction of the lifting latch 4 is the direction of the connection line between the threaded hole 41 and the centers of the two slots 42.
The screw seat 2 can be a bearing, and is connected with the adjusting screw 3 through the bearing to realize the rotation of the adjusting screw 3, in the utility model, the screw seat 2 comprises a seat body 21 and an end cover 22, the seat body 21 is provided with a groove 211, the end cover 22 is detachably connected with the seat body 21 through the notch section of the groove 211, the end cover 22 is provided with a through hole 221 coaxial with the groove 211, and the diameter of the through hole 221 is smaller than that of the groove 211;
as shown in fig. 8, the adjusting screw 3 includes a screw portion 32 and a connecting portion 31 in a cylindrical shape at a bottom end of the screw portion 32; connecting portion 31 and recess 211 looks adaptation, and swing joint is in recess 211, screw rod portion 32 passes through-hole 221, by end cover 22 cooperatees with connecting portion 31 and constitutes limit structure.
The screw rod seat 2 of this structure is connected with adjusting screw 3's screw rod portion 32 through seting up cylindric recess 211 on the pedestal 21, is less than adjusting screw 3's screw rod portion 32's diameter through the through-hole 221 diameter on the end cover 22 to with screw rod portion 32 restriction in recess 211, avoid adjusting screw 3 to break away from screw rod seat 2, connection structure is simple, the cost of manufacture is low, the equipment is convenient with the change. During assembly, the screw part 32 of the adjusting screw 3 is inserted into the groove 211 of the seat body 21; then, the through hole 221 of the end cover 22 is centered on the top end of the adjusting screw 3, and the end cover 22 is inserted through the adjusting screw 3 and the seat body 21 and bolted together.
In order to be matched with a pipeline 6 and the like conveniently, the device further comprises a base 1, and the opposite end, connected with the adjusting screw 3, of the screw seat 2 is connected with the base 1 in a welding mode. The base 1 is arc-shaped and matched with the pipeline 6. Can closely laminate with pipeline 6, increase the area of contact with pipeline 6, provide good support for adjusting screw 3.
In order to facilitate the rotation of the adjusting screw 3 by a wrench, a square wrench portion 33 is provided at the top of the adjusting screw 3.
A method for adjusting the gap between a pipeline and a support guard plate,
step one, preparing the chain type self-locking device and separating a chain 5 from a lifting fixture block 4; hoisting the support guard plate 7 to be installed in place;
secondly, placing the base 1 right above the pipeline 6;
thirdly, winding the chain 5 around the periphery of the to-be-installed support guard plate 7, and respectively clamping two ends of the chain 5 in the corresponding clamping grooves 42, so that the to-be-installed support guard plate 7 and the pipeline 6 are positioned in the surrounding ring of the chain 5;
and step four, rotating the adjusting screw 3 to enable the lifting fixture block 4 to axially move along the adjusting screw 3 until the gap between the mounting bracket guard plate 7 and the pipeline 6 meets the design requirement.
In the first step, the preparation process of the chain type self-locking device is as follows: firstly, preparing a base 1, an adjusting screw 3, a screw seat 2, a lifting fixture block 4 and a chain 5; then, welding the screw rod seat 2 with the base 1; then, the connecting part 31 of the adjusting screw 3 is inserted into the groove 211 of the screw seat 2, the end cover 22 is sleeved in from the top end of the adjusting screw 3, and the end cover 22 is fastened on the seat body 21 by using bolts; next, the lifting fixture block 4 is screwed into the adjusting screw 3 from the top of the adjusting screw 3. In this step, the chain 5 is separated from the lifting latch 4 and is not assembled together.
In the second step, the base 1 is placed right above the pipeline 6 and contacts with the outer wall of the pipeline 6, the base 1 and the pipeline 6 are not connected, and the base 1 can be temporarily fixed on the pipeline 6 by adopting spot welding and the like. The utility model discloses in, base 1 and the contact of 6 outer walls of pipeline, both do not connect, and convenient to use avoids extra incremental cost.
In the fourth step, if the fact that the gap between the mounting bracket guard plate 7 and the pipeline 6 is larger than the design requirement is detected, the adjusting screw rod 3 is rotated in the forward direction, the lifting fixture block 4 moves upwards along the adjusting screw rod 3, and the gap between the mounting bracket guard plate 7 and the pipeline 6 is reduced; if the detected clearance between the mounting bracket guard plate 7 and the pipeline 6 is smaller than the design requirement, the adjusting screw rod 3 is rotated reversely, so that the lifting fixture block 4 moves downwards along the adjusting screw rod 3 to increase the clearance between the mounting bracket guard plate 7 and the pipeline 6.
The utility model discloses a method for adjusting the gap between a pipeline and a support guard plate, which solves the problem of support guard plate or guard plate installation support in pipeline construction engineering, is particularly suitable for the situation that the ground support is difficult or can not provide ground support when the pipeline is installed at high altitude, and saves the cost for setting up ground real estate and the construction period; meanwhile, the problem of difficulty in adjusting the gap of the welding seam is solved, and the adjustment is convenient and fast.
In order that the chain 5 with the same length can adapt to pipelines with a certain pipe diameter range, the length of the chain 5 is L; the circumference of the duct 6 is C; l is more than or equal to 1.3C and less than or equal to 1.5C.
Claims (8)
1. Chain self-lock device, its characterized in that: comprises an adjusting screw (3), a screw seat (2), a lifting fixture block (4) and a chain (5);
the bottom end of the adjusting screw rod (3) is arranged on the screw rod seat (2), and the top end of the adjusting screw rod is vertical to the base (1) and extends upwards; the axis of the adjusting screw rod (3) is taken as a rotating shaft, the adjusting screw rod (3) is connected with the screw rod seat (2) in a rotating matching manner, and a limiting structure for limiting the adjusting screw rod (3) along the axial direction of the adjusting screw rod (3) is arranged between the adjusting screw rod (3) and the screw rod seat (2);
the lifting clamping block (4) is sleeved on the adjusting screw rod (3) and is in threaded fit connection with the adjusting screw rod (3); the two ends of the lifting clamping block (4) are respectively provided with a clamping groove (42) which is communicated along the thickness direction of the lifting clamping block (4), one end of the chain (5) is clamped in one clamping groove (42), and the other end of the chain is clamped in the other clamping groove (42).
2. The chain type self-locking device according to claim 1, wherein: the threaded hole (41) matched with the adjusting screw rod (3) in the lifting fixture block (4) is formed in the middle of the lifting fixture block (4), and the two clamping grooves (42) are arranged on two sides of the threaded hole (41) in the lifting fixture block (4) and are symmetrical about the threaded hole (41); and the connecting line of the centers of the threaded hole (41) and the two clamping grooves (42) is a straight line.
3. The chain type self-locking device according to claim 2, wherein: the clamping grooves (42) are in a cross shape and comprise transverse grooves (421) extending along the connecting line direction of the threaded holes (41) and the centers of the two clamping grooves (42) and longitudinal grooves (422) perpendicular to the transverse grooves (421); one end of the transverse groove (421) penetrates through one end of the lifting clamping block (4) adjacent to the clamping groove (42) along the connecting line direction of the threaded hole (41) and the centers of the two clamping grooves (42); the longitudinal groove (422) is in a funnel shape gradually contracting from top to bottom.
4. The chain type self-locking apparatus as claimed in any one of claims 1 to 3, wherein: the screw rod seat (2) comprises a seat body (21) and an end cover (22), a groove (211) is formed in the seat body (21), the end cover (22) is detachably connected to the seat body (21) through a groove opening section of the groove (211), a through hole (221) coaxial with the groove (211) is formed in the end cover (22), and the diameter of the through hole (221) is smaller than that of the groove (211);
the adjusting screw (3) comprises a screw part (32) and a cylindrical connecting part (31) positioned at the bottom end of the screw part (32); connecting portion (31) and recess (211) looks adaptation, and swing joint in recess (211), screw rod portion (32) pass through-hole (221), by end cover (22) cooperate with connecting portion (31) to constitute limit structure.
5. The chain type self-locking device according to claim 4, wherein: the screw rod seat is characterized by further comprising a base (1), wherein the opposite end of the screw rod seat (2) connected with the adjusting screw rod (3) is connected with the base (1) in a welding mode.
6. The chain type self-locking device according to claim 5, wherein: the base (1) is arc-shaped and matched with the pipeline.
7. The chain type self-locking device according to claim 6, wherein: along base (1) axial, base (1) is the I shape, support bar (11) including both ends and backup pad (12) at middle part, screw rod seat (2) are fixed in backup pad (12).
8. The chain type self-locking apparatus as claimed in any one of claims 1 to 3, wherein: the top of the adjusting screw rod (3) is provided with a square spanner part (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022022876.XU CN212398589U (en) | 2020-09-15 | 2020-09-15 | Chain type self-locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022022876.XU CN212398589U (en) | 2020-09-15 | 2020-09-15 | Chain type self-locking device |
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| Publication Number | Publication Date |
|---|---|
| CN212398589U true CN212398589U (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022022876.XU Active CN212398589U (en) | 2020-09-15 | 2020-09-15 | Chain type self-locking device |
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| CN (1) | CN212398589U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112093638A (en) * | 2020-09-15 | 2020-12-18 | 中国电建集团山东电力建设有限公司 | Chain type self-locking device and method for adjusting gap between pipeline and support guard plate |
-
2020
- 2020-09-15 CN CN202022022876.XU patent/CN212398589U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112093638A (en) * | 2020-09-15 | 2020-12-18 | 中国电建集团山东电力建设有限公司 | Chain type self-locking device and method for adjusting gap between pipeline and support guard plate |
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