CN102693680B - Seal structure of electric energy meter - Google Patents
Seal structure of electric energy meter Download PDFInfo
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- CN102693680B CN102693680B CN201210144500.3A CN201210144500A CN102693680B CN 102693680 B CN102693680 B CN 102693680B CN 201210144500 A CN201210144500 A CN 201210144500A CN 102693680 B CN102693680 B CN 102693680B
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- 235000019994 cava Nutrition 0.000 claims description 30
- 229920003023 plastic Polymers 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The invention discloses a seal structure of an electric energy meter, aiming at providing a seal structure which is able to differentiate intentions of a seal destroyer, is good in anti-stealing property, and is convenient to install, wherein the destroyer intention is either to destroy a seal cover for stealing power or to destroy the seal cover carelessly and not for stealing power. The seal structure comprises a sleeve-shaped seal body and the seal cover, wherein the seal cover is arranged below the upper end of the seal body, and forms an invaginated groove which recesses downwards at the upper end of the seal body.
Description
Technical field
The present invention relates to a kind of seal, be specifically related to a kind of seal structure of electric energy meter that is suitable for seal electric energy meter.
Background technology
Electric energy meter seal is a kind ofly to prevent that access by unauthorized persons from opening the device of electric energy meter, and it can prevent that access by unauthorized persons change electric energy meter structure or setting from carrying out stealing.At present, in power industry, tradition seal structure is to adopt lead sealing, and Sealed wire is through plastic casing, seal screw, again in two screw plugs to lead of Sealed wire, adopt to press or turn to obtain the fixing Sealed wire of mode, therefore can not pull out Sealed wire with breaking under the prerequisite of Sealed wire not destroying seal structural member, thereby can not rotate seal screw, make unauthorized people can not turn on seal screw, open by seal structure.This structure mainly has the following disadvantages: one, and traditional seal need be worn Sealed wire, and installation steps are more loaded down with trivial details.Its two, the theftproof performance of traditional seal structure is poor.Its three, the lead that traditional seal adopts, environmental pollution is serious, and installment work personnel Long Term Contact is plumbous, easily causes poisoning.For overcoming existing technical deficiency, there is inventor to improve existing technology.For example, China Patent Publication No. CN 2522863, open day on November 27th, 2002, the name of innovation and creation is called Electric meter seal, this application case discloses a kind of Electric meter seal, comprises lower cushion block and seal lid, and lower cushion block inserts in seal lid, outer button offered in the both sides, end that its feature lower cushion block inserts in seal lid, and screw and anti-rotating hole are offered in lower cushion block bottom surface; Seal lid is inner to be offered with lower cushion block outer and buckles matched interior button.The Electric meter seal of this scheme is disposable plastic seal, has certain anti-theft feature, if want stealing to need to destroy the seal lid of this seal, can open electric energy meter and carry out stealing.This current class seal structure is for the ease of maintenance, and the material of the seal of seal structure lid is generally plastics, and the intensity of seal lid is not high; When maintenance, can destroy seal lid and carry out detachable maintaining; But because the material of this seal lid is that the intensity of plastics and seal lid is not high, so we are while using ammeter in daily life, and the problem of seal lid often can occur to damage unintentionally; And the defect of the seal structure of this class application plastic seal stamp cover is just this, after seal cover is damaged, the user that this seal can not be identified electric energy meter take stealing seal lid to be damaged as object; Still damage unintentionally seal lid and do not there is electricity filching behavior.This problem is gone back the good solution of neither one at present.
Summary of the invention
The first object of the present invention is in order to overcome the electric energy meter seal of prior art, and after seal cover is damaged, electric energy meter seal can not be identified seal saboteur and take stealing seal lid to be damaged as object; Still damage unintentionally the problem that seal lid does not have electricity filching behavior, provide a kind of and can identify seal saboteur and take stealing seal lid to be damaged as object; Still damage unintentionally the electric energy meter seal of seal lid.
The second object of the present invention is poor in order to overcome the electric energy meter seal theftproof performance of prior art, need wear Sealed wire, is not easy to the problem of installing during seal, provides a kind of theftproof performance good, the low and electric energy meter seal being convenient to install of cost of manufacture.
Technical scheme of the present invention is:
A seal structure of electric energy meter, comprises the seal body and the seal lid that are sleeve-shaped, and described seal is covered on seal body upper port below, and forms a groove that caves in to lower recess at the upper port place of seal body.The user who makes the electric energy meter seal of this programme can identify ammeter by this structure be take stealing as object is by the damage of seal lid; Still damage unintentionally seal lid and do not there is electricity filching behavior.Because the seal of this programme is covered on seal body upper port below, and form a groove that caves in to lower recess at the upper port place of seal body; If ammeter user is clashed into seal structure in the situation that being intended to without stealing, the site of action that seal structure is clashed into is normally near seal body upper port, and the seal lid of being located at below seal body upper port is not vulnerable to clash into, therefore in the situation that being intended to without stealing, we can think that seal lid is can be not destroyed.So when seal cover is destroyed, we just can judge that seal saboteur take stealing and seal lid is damaged as object in the ordinary course of things.
As preferably, the endoporus that is positioned at the seal body of seal lid below is that stepped hole and stepped hole cross-sectional area increase from top to bottom gradually, and the step surface place of stepped hole is provided with a dividing plate, and dividing plate lower surface place is provided with electronic seal marking label.Due to the setting of stepped hole, make dividing plate can by bonding the firm step surface place that is fixed on stepped hole of mode; This scenario-frame can reduce the difficulty of manufacture craft simultaneously, reduces costs.Simultaneously due to the setting of dividing plate, and electronic seal marking label are located to dividing plate lower surface place; Can identify more reliably seal saboteur is to take stealing as object is by the damage of seal lid; Still damage unintentionally seal lid.Because dividing plate is positioned at the seal body that seal covers below, be not vulnerable to outside shock; And at seal use procedure median septum, can not be exposed in air, the intensity of dividing plate can not reduce; If therefore ammeter user has damaged unintentionally seal lid in the situation that being intended to without stealing, because seal lid below is also provided with dividing plate, as long as dividing plate is not destroyed, we just can judge that the user of ammeter does not have electricity filching behavior and stealing intention; If seal lid and dividing plate are simultaneously destroyed, we just can judge that seal saboteur take stealing and seal lid is damaged as object in the ordinary course of things.On the other hand, the setting of electronic seal marking label can be so that carry out digital management.
As preferably, seal structure of electric energy meter also comprises watchcase, seal screw, and watchcase is provided with a counterbore, and counterbore bottom surface is provided with screw, and seal screw is located in screw; The side of the screw cap of described seal screw is provided with annular slot, the end face of this annular slot from screw cap outside toward interior be the conical surface of oblique downward-extension; The lateral wall of described seal body upper end is provided with outward extending annular boss, seal body bottom is provided with some resilient clips to downward-extension, the medial surface place of resilient clip bottom is provided with the barb extending obliquely, and the end of barb is resisted against on the conical surface, the lower surface of described boss is resisted against on the step surface of counterbore.The seal structure of this programme is disposable seal structure, and seal is convenient to operation; Importantly, the end face of annular slot from screw cap outside toward interior be the conical surface of oblique downward-extension, and the end of barb is resisted against on the conical surface.When the barb of the resilient clip of seal body is in the process of clamping in annular slot, due to the end face of the annular slot conical surface that is oblique downward-extension, therefore the end of barb is connected on the conical surface reliably, thereby eliminate the gap between the lower surface of boss and the step surface of counterbore, seal body can coordinate with counterbore closely, seal body can not produced loosening, and then effectively improve the theftproof performance of seal structural strength and seal.On the other hand, due to the end face of the annular slot conical surface that is oblique downward-extension, when the barb of the resilient clip of seal body is connected on the conical surface, resilient clip applies the component making progress can to seal screw, be equivalent to apply a pretightning force to seal screw, make seal screw be difficult for occurring to become flexible, can further improve the anti-theft feature of seal.
As preferably, the lower surface of boss and counterbore step surface are corresponding thereto the toothed surface matching; Between seal body and watchcase, rely on toothed surface to form and prevent from being connected in relative rotation, in two toothed surface, be respectively equipped with some double wedges.
As another kind of preferred version, seal structure of electric energy meter also comprises watchcase, seal screw, and watchcase is provided with shoulder hole, and shoulder hole is provided with two stage rank and shoulder hole cross-sectional area reduces from top to bottom gradually, shoulder hole bottom surface is provided with screw, and seal screw is located in screw; The side of the screw cap of described seal screw is provided with annular slot; The lateral wall of described seal body upper end is provided with outward extending annular boss, the lower surface of seal body is between two stage rank of shoulder hole, seal body lower surface place is provided with and is somely circumferentially equally distributed and to the resilient clip of downward-extension, the medial surface place of resilient clip bottom is provided with the barb extending obliquely; Described resilient clip outer race is provided with a lining, and lining lateral wall is provided with the elastic bumps of oblique downward-extension, and the upper end of described lining is supported and seal body lower surface, and the end of elastic bumps is resisted against on the step surface of the shoulder hole below seal body lower surface; Described barb matches with annular slot, and the end of elastic bumps has been resisted against on the step surface of the shoulder hole below seal body lower surface before barb and annular slot fasten.Because the barb of resilient clip bottom is before snapping in annular slot, the end of the elastic bumps of above-mentioned lining has been connected on the step surface of shoulder hole of below, seal body lower surface; Therefore after seal body is connected on seal screw, the elastic bumps of lining can apply a upward force and be applied on seal body, thereby make the resilient clip of seal body be connected to closely in annular slot, seal body can not produce looseningly like this, and then effectively improves the theftproof performance of seal structural strength and seal.On the other hand, after seal body is connected on seal screw, because can applying a upward force, the elastic bumps of lining is applied on seal body, therefore resilient clip applies a pulling force making progress can to seal screw, be equivalent to apply a pretightning force to seal screw, make seal screw be difficult for occurring to become flexible, can further improve the anti-theft feature of seal.
As preferably, the spacing between the lower surface of lining and the lower surface of seal body is less than the spacing between barb root and the lower surface of seal body; Be equivalent to the lower end part of lining in the top of the barb root of resilient clip.Because the lower end part of lining is in the top of the barb of resilient clip, can there is deformation in process Elastic clamp and the barb of annular slot that snaps in the screw cap of seal screw when the barb of resilient clip simultaneously, can be conducive to like this resilient clip and snap in annular slot, improve the serviceable life of resilient clip.
As preferably, the lateral wall of boss and shoulder hole sidewall are corresponding thereto provided with the toothed surface matching; Between seal body and watchcase, rely on toothed surface to form and prevent from being connected in relative rotation, in two toothed surface, be respectively equipped with some double wedges.
As another kind of preferred version, seal structure of electric energy meter also comprises watchcase, seal screw and is set in the cylindrical sleeve on seal screw, and described watchcase is provided with a counterbore, and counterbore bottom surface is provided with screw, and seal screw is located in screw; The xsect of described cylindrical sleeve is circular, and the diameter of the xsect of cylindrical sleeve is less than the screw cap external diameter of seal screw; The lateral wall of described seal body upper end is provided with outward extending annular boss, seal body bottom is provided with some resilient clips to downward-extension, the medial surface place of resilient clip bottom is provided with the barb extending obliquely, and the end of barb is supported and the lower surface of the screw cap of seal screw, and the lower surface of described boss is resisted against on the step surface of counterbore.This programme coordinates the screw cap of seal screw by cylindrical sleeve, after seal screw lock, can below screw cap, form a draw-in groove, the resilient clip of seal body can be connected on seal screw, this programme structure can reduce production costs greatly.
As preferably, the groove that caves in is that the groove depth of circular trough and the groove that caves in is greater than the groove xsect radius that caves in.The groove depth that is circular trough and the groove that caves in due to the groove that caves in is greater than the groove xsect radius that caves in, and makes seal lid not be vulnerable to clash into, and then can identify more reliably seal saboteur and take stealing seal lid to be damaged as object; Still damage unintentionally seal lid.
As preferably, the lower surface place of seal lid is provided with rapid wear groove, and the xsect of rapid wear groove is inverted V-shaped or deep-slotted chip breaker inverted U-shaped or depression.The setting of rapid wear groove can so that electric energy meter while being out of order, keep in repair.
The invention has the beneficial effects as follows: can identify seal saboteur is to take stealing as object is by the damage of seal lid; Still damage unintentionally seal lid and there is no stealing intention; Also there is theftproof performance good simultaneously, be convenient to the feature of installing.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the embodiment of the present invention 1.
Fig. 2 is a kind of structural representation at the step surface place of counterbore in the embodiment of the present invention 1.
Fig. 3 is a kind of structural representation of the embodiment of the present invention 2.
Fig. 4 is a kind of structural representation of the embodiment of the present invention 3.
In figure: seal body 1, seal lid 2, the groove 3 that caves in, dividing plate 4, electronic seal marking label 5, watchcase 6, boss 7, annular slot 8, the conical surface 9, resilient clip 10, barb 11, seal screw 12, lining 13, elastic bumps 14, cylindrical sleeve 15, counterbore 16, toothed surface 17.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
Embodiment 1: as shown in Figure 1, a kind of seal structure of electric energy meter, comprises watchcase 6, seal screw 12, is the seal body 1 of sleeve-shaped and seal lid 2.Watchcase 6 is provided with a counterbore, and counterbore bottom surface is provided with screw, and seal screw 12 is located in screw.The side of the screw cap of described seal screw is provided with annular slot 8, the end face of this annular slot 8 from screw cap outside toward interior be the conical surface 9 of oblique downward-extension.The lateral wall of described seal body 1 upper end is provided with outward extending annular boss 7.Seal body 1 bottom is provided with three to the resilient clip 10 of downward-extension, and each resilient clip is circumferentially and is uniformly distributed.The medial surface place of resilient clip bottom is provided with the barb 11 extending obliquely.The end of barb 11 is provided with arc surface.The end of barb 11 is resisted against on the conical surface 9, and specifically, the arc surface of the end of barb 11 is resisted against on the conical surface 9.The lower surface of described boss 7 is resisted against on the step surface of counterbore.
The material of above-mentioned resilient clip 10 can be set to metal material, and seal body 1 is plastic material; Resilient clip 10 is embedded in seal body 1 bottom.
Above-mentioned seal body 1 is plastic material with resilient clip 10, and the structure that is formed in one of seal body and resilient clip.
Due to the end face of annular slot 8 from screw cap outside toward interior be the conical surface 9 of oblique downward-extension, when the barb 11 of resilient clip 10 is in the process of annular slot 8 interior clampings, the end of barb 11 can be connected on the conical surface 9 reliably, thereby eliminate the gap between the lower surface of boss 7 and the step surface of counterbore, seal body 1 can be coordinated with counterbore closely; Therefore seal body 1 can not produce looseningly, and then effectively improves the theftproof performance of seal structural strength and seal.On the other hand, when the barb of the resilient clip 10 of seal body is connected on the conical surface, due to the end face of the annular slot conical surface 9 that is oblique downward-extension, therefore the power that barb 11 applies to the conical surface can form the component making progress on the conical surface 9, be equivalent to apply a pretightning force to seal screw, make seal screw be difficult for occurring to become flexible, can further improve the anti-theft feature of seal.
The end face of described boss 7 flushes with the upper surface of seal body 1, and the height of boss is less than counterbore upper port and is adjacent the spacing between step surface.As shown in Figure 1 and Figure 2, the step surface of the lower surface of boss 7 and counterbore corresponding thereto 16 is the toothed surface 17 matching.Between seal body and watchcase, rely on toothed surface to form and prevent from being connected in relative rotation, in two toothed surface, be respectively equipped with some double wedges.
As shown in Figure 1, seal lid 2 is located at seal body 1 upper port below, and forms a groove 3 that caves in to lower recess at the upper port place of seal body 1.The groove depth that the groove 3 that caves in is circular trough and the groove that caves in is greater than the groove xsect radius that caves in.Being positioned at the endoporus that seal covers the seal body of 2 belows is that stepped hole and stepped hole cross-sectional area increase from top to bottom gradually, and the step surface place of stepped hole is provided with a dividing plate 4, and dividing plate lower surface place is provided with electronic seal marking label 5.The lower surface place of seal lid is provided with rapid wear groove, and the xsect of rapid wear groove is inverted V-shaped or deep-slotted chip breaker inverted U-shaped or depression.
Because seal lid 2 is located at seal body upper port below, and form a groove 3 that caves in to lower recess at the upper port place of seal body; If ammeter user is clashed into seal structure in the situation that being intended to without stealing, the site of action that seal structure is clashed into is normally near seal body 1 upper port, and the seal lid of being located at below seal body upper port is not vulnerable to clash into, therefore in the situation that being intended to without stealing, we can think that seal lid is can be not destroyed.So when seal cover is destroyed, we just can judge that seal saboteur take stealing and seal lid is damaged as object in the ordinary course of things.
When reality is used, after seal screw-driving is on watchcase; Seal body is engaged with the annular slot of seal screw by barb, thereby the one-piece construction of seal is fixed on and is treated on seal watchcase.This seal structure, does not need to wear Sealed wire, easy for installation, fixed; Do not destroying under the prerequisite of electric energy meter seal, cannot carry out stealing to electric energy meter.
Embodiment 2: as shown in Figure 3, a kind of seal structure of electric energy meter, comprises watchcase 6, seal screw 12, is the seal body 1 of sleeve-shaped and seal lid 2.Watchcase 6 is provided with shoulder hole, and shoulder hole is provided with two stage rank and shoulder hole cross-sectional area reduces from top to bottom gradually.Shoulder hole bottom surface is provided with screw, and seal screw 12 is located in screw.The side of the screw cap of described seal screw 12 is provided with annular slot 8.The lateral wall of described seal body 1 upper end is provided with outward extending annular boss 7.The lower surface of seal body 1 is between two stage rank of shoulder hole, and seal body 1 lower surface place is provided with three and is circumferentially equally distributed and to the resilient clip 10 of downward-extension.The medial surface place of resilient clip 10 bottoms is provided with the barb 11 extending obliquely.Described resilient clip 10 outer race are provided with a lining 13, and lining lateral wall is provided with the elastic bumps 14 of oblique downward-extension.The upper end of described lining 13 is supported and seal body 1 lower surface, and the end of elastic bumps 14 is resisted against on the step surface of the shoulder hole below seal body 1 lower surface.Spacing between the lower surface of the lower surface of lining 13 and seal body 1 is less than the spacing between barb 11 roots and the lower surface of seal body 1, is equivalent to the lower end part of lining 14 in the top of the barb root of resilient clip 10.Described barb 11 matches with annular slot 8, and the end of elastic bumps 14 has been resisted against on the step surface of the shoulder hole below seal body lower surface before barb 11 and annular slot 8 fasten.
Because the barb 11 of resilient clip 10 is before snapping in annular slot 8, the end of the elastic bumps 14 of above-mentioned lining 13 has been connected on the step surface of shoulder hole of below, seal body lower surface; Therefore when the barb 11 of resilient clip 10 be connected to the annular slot 8 of seal screw interior after, the elastic bumps 14 of lining can apply a upward force and be applied on seal body 1, thereby make the resilient clip 10 of seal body 1 be connected to closely in annular slot, seal body can not produce looseningly like this, and then effectively improves the theftproof performance of seal structural strength and seal.On the other hand, after seal body is connected on seal screw, because can applying a upward force, the elastic bumps 14 of lining is applied on seal body 1, therefore resilient clip applies a pulling force making progress can to seal screw, be equivalent to apply a pretightning force to seal screw, make seal screw be difficult for occurring to become flexible, can further improve the anti-theft feature of seal.
The end face of described boss 7 flushes with seal body 1 upper surface, and the height of boss is less than shoulder hole upper port and is adjacent the spacing between step surface.Shoulder hole sidewall on the lateral wall of boss and is corresponding thereto provided with the toothed surface matching; Between seal body and watchcase, rely on toothed surface to form and prevent from being connected in relative rotation, in two toothed surface, be respectively equipped with some double wedges.
Seal lid 2 is located at seal body 1 upper port below, and forms a groove 3 that caves in to lower recess at the upper port place of seal body 1.The groove depth that the groove 3 that caves in is circular trough and the groove that caves in is greater than the groove xsect radius that caves in.Being positioned at the endoporus that seal covers the seal body of 2 belows is that stepped hole and stepped hole cross-sectional area increase from top to bottom gradually, and the step surface place of stepped hole is provided with a dividing plate 4, and dividing plate lower surface place is provided with electronic seal marking label 5.The lower surface place of seal lid is provided with rapid wear groove, and the xsect of rapid wear groove is inverted V-shaped or deep-slotted chip breaker inverted U-shaped or depression.
Embodiment 3: as shown in Figure 4, a kind of seal structure of electric energy meter, comprises watchcase 6, seal screw 12, is set in the cylindrical sleeve 15 on seal screw, the seal body 1 that is sleeve-shaped and seal lid 2.Watchcase 6 is provided with a counterbore, and counterbore bottom surface is provided with screw, and seal screw 12 is located in screw.The xsect of described cylindrical sleeve 15 is circular, and the diameter of the xsect of cylindrical sleeve is less than the screw cap external diameter of seal screw 12.The lateral wall of described seal body 1 upper end is provided with outward extending annular boss 7.Seal body 1 bottom is provided with three to the resilient clip 10 of downward-extension, and each resilient clip is circumferentially and is uniformly distributed.The medial surface place of resilient clip bottom is provided with the barb 11 extending obliquely.The end of barb 11 is supported and the lower surface of the screw cap of seal screw 12.The lower surface of described boss 7 is resisted against on the step surface of counterbore.
The end face of described boss 7 flushes with the upper surface of seal body 1, and the height of boss is less than counterbore upper port and is adjacent the spacing between step surface.The step surface of the lower surface of boss and counterbore is corresponding thereto the toothed surface matching.Between seal body and watchcase, rely on toothed surface to form and prevent from being connected in relative rotation, in two toothed surface, be respectively equipped with some double wedges.
Seal lid 2 is located at seal body 1 upper port below, and forms a groove 3 that caves in to lower recess at the upper port place of seal body 1.The groove depth that the groove 3 that caves in is circular trough and the groove that caves in is greater than the groove xsect radius that caves in.Being positioned at the endoporus that seal covers the seal body of 2 belows is that stepped hole and stepped hole cross-sectional area increase from top to bottom gradually, and the step surface place of stepped hole is provided with a dividing plate 4, and dividing plate lower surface place is provided with electronic seal marking label 5.The lower surface place of seal lid is provided with rapid wear groove, and the xsect of rapid wear groove is inverted V-shaped or deep-slotted chip breaker inverted U-shaped or depression.
Claims (10)
1. a seal structure of electric energy meter, comprise the seal body (1) and the seal lid (2) that are sleeve-shaped, it is characterized in that, described seal lid (2) is located at seal body upper port below, and forms a groove that caves in (3) to lower recess at the upper port place of seal body; Seal structure of electric energy meter also comprises watchcase (6), seal screw (12), and watchcase is provided with a counterbore, and counterbore bottom surface is provided with screw, and seal screw is located in screw; The side of the screw cap of described seal screw (12) is provided with annular slot (8), the end face of this annular slot from screw cap outside toward interior be the conical surface (9) of oblique downward-extension; The lateral wall of described seal body (1) upper end is provided with outward extending annular boss (7), seal body (1) bottom is provided with some resilient clips to downward-extension (10), the medial surface place of resilient clip bottom is provided with the barb (11) extending obliquely, and it is upper that the end of barb (11) is resisted against the conical surface (9), and the lower surface of described boss is resisted against on the step surface of counterbore.
2. according to a kind of seal structure of electric energy meter described in claim l, it is characterized in that, the endoporus that is positioned at the seal body of seal lid (2) below is that stepped hole and stepped hole cross-sectional area increase from top to bottom gradually, the step surface place of stepped hole is provided with a dividing plate (4), and dividing plate lower surface place is provided with electronic seal marking label (5).
3. a kind of seal structure of electric energy meter according to claim 1, is characterized in that, it is the toothed surface (17) matching that the lower surface of described boss (7) and counterbore corresponding thereto (16) close terrace; Between seal body and watchcase, rely on toothed surface to form and prevent from being connected in relative rotation, in two toothed surface, be respectively equipped with some double wedges.
4. according to a kind of seal structure of electric energy meter described in claim l or 2 or 3, it is characterized in that, the groove that caves in (3) is that the groove depth of circular trough and the groove that caves in is greater than the groove xsect radius that caves in.
5. according to a kind of seal structure of electric energy meter described in claim l or 2 or 3, it is characterized in that, the lower surface place of seal lid is provided with rapid wear groove, and the xsect of rapid wear groove is inverted V-shaped or deep-slotted chip breaker inverted U-shaped or depression.
6. a seal structure of electric energy meter, comprise the seal body (1) and the seal lid (2) that are sleeve-shaped, it is characterized in that, described seal lid (2) is located at seal body upper port below, and forms a groove that caves in (3) to lower recess at the upper port place of seal body; Seal structure of electric energy meter also comprises watchcase (6), seal screw (12), watchcase is provided with shoulder hole, shoulder hole is provided with two stage rank and shoulder hole cross-sectional area reduces from top to bottom gradually, and shoulder hole bottom surface is provided with screw, and seal screw is located in screw; The side of the screw cap of described seal screw (12) is provided with annular slot (8); The lateral wall of described seal body upper end is provided with outward extending annular boss (7), the lower surface of seal body (1) is between two stage rank of shoulder hole, seal body lower surface place is provided with and is somely circumferentially equally distributed and to the resilient clip (10) of downward-extension, the medial surface place of resilient clip bottom is provided with the barb (11) extending obliquely; Described resilient clip outer race is provided with a lining (13), lining lateral wall is provided with the elastic bumps (14) of oblique downward-extension, the upper end of described lining (13) is supported and seal body lower surface, and the end of elastic bumps (14) is resisted against on the step surface of the shoulder hole below seal body lower surface; Described barb matches with annular slot.
7. a kind of seal structure of electric energy meter according to claim 6, is characterized in that, the spacing between the lower surface of described lining (13) and the lower surface of seal body (1) is less than the spacing between barb root and the lower surface of seal body.
8. according to a kind of seal structure of electric energy meter described in claim 6 or 7, it is characterized in that, the lateral wall of described boss and shoulder hole sidewall are corresponding thereto provided with the toothed surface matching; Between seal body and watchcase, rely on toothed surface to form and prevent from being connected in relative rotation, in two toothed surface, be respectively equipped with some double wedges.
9. according to a kind of seal structure of electric energy meter described in claim 6 or 7, it is characterized in that, the groove that caves in (3) is that the groove depth of circular trough and the groove that caves in is greater than the groove xsect radius that caves in.
10. according to a kind of seal structure of electric energy meter described in claim 6 or 7, it is characterized in that, the lower surface place of seal lid is provided with rapid wear groove, and the xsect of rapid wear groove is inverted V-shaped or deep-slotted chip breaker inverted U-shaped or depression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210144500.3A CN102693680B (en) | 2012-05-10 | 2012-05-10 | Seal structure of electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210144500.3A CN102693680B (en) | 2012-05-10 | 2012-05-10 | Seal structure of electric energy meter |
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| Publication Number | Publication Date |
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| CN102693680A CN102693680A (en) | 2012-09-26 |
| CN102693680B true CN102693680B (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210144500.3A Active CN102693680B (en) | 2012-05-10 | 2012-05-10 | Seal structure of electric energy meter |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102930781B (en) * | 2012-10-25 | 2013-12-11 | 江苏省电力公司电力科学研究院 | Buckle type anti-counterfeiting seal |
| CN103761923A (en) * | 2014-02-12 | 2014-04-30 | 江门市大光明电力设备厂有限公司 | Elastic locking type meter-sealing device |
| CN105249785B (en) * | 2014-04-22 | 2017-11-07 | 张辉 | A kind of fixing means of sanitary equipment fixing device |
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| CN102693680A (en) | 2012-09-26 |
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