Pivot assembly for pivot door
By designing a pivot assembly for pivot doors, and utilizing heavy-duty springs and cam structures in the housing and spring assembly, the load-bearing capacity of the hinge is enhanced, its service life is extended, and the structure is concealed.
Patent Information
- Application Number
- CN202520030635.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-07
AI Technical Summary
The existing hinge systems for heavy-duty doors have low load-bearing capacity, wear out quickly, and are not easy to conceal.
A pivot assembly for a pivot door is adopted, including a housing and a spring assembly. By utilizing the heavy-duty spring and cam structure in the spring assembly, and using the central axis of the cam as the lower support point, combined with the sliding pad and groove design, the load-bearing capacity of the hinge mechanism is enhanced and the size is reduced.
It improves the load-bearing capacity of the hinge mechanism, extends its service life, and allows the overall structure to be hidden inside the door panel, solving the problems of rapid wear and difficulty in concealment of the hinge mechanism in the existing technology.
Smart Images
Figure CN223854059U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to door accessory technical field, especially a pivot assembly for pivot door. BACKGROUND
[0002] For large heavy doors, 360-degree rotation is generally achieved using a motor or a non-external power top and bottom shaft. The present product is a technical innovation of the non-external power top and bottom shaft scheme.
[0003] The prior art has the following defects:
[0004] 1. The hinge system of such doors on the market has a small load-bearing capacity.
[0005] 2. The non-external power hinge mechanism used in heavy doors on the market wears out quickly due to the influence of the door weight, and has a low hinge rotation life.
[0006] 3. The old non-external power hinge system of our company has a large volume due to the technical limitations of the force transmission direction, making it difficult to hide in heavy and thin doors. INVENTION CONTENTS
[0007] The main purpose of the utility model is to provide a pivot assembly for a pivot door, in order to effectively solve the problems of rapid wear of the hinge mechanism, small load-bearing capacity, and difficulty in hiding.
[0008] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pivot assembly for a pivot door, comprising a shell, a spring assembly; the shell comprises an n-shaped upper shell, a lower cover, a left side sealed with a left support plate and fixed with the shell by bolts, an L-shaped left side plate fixed on the outside of the left support plate by bolts, a right side sealed with a right support plate and fixed with the shell by bolts, and an L-shaped right side plate fixed on the outside of the right support plate by bolts;
[0009] The spring assembly comprises a left pull rod mounting block fixed on the right side of the left support plate by bolts, a right pull rod mounting block fixed on the left side of the right support plate by bolts, a linear slider arranged between the left pull rod mounting block and the right pull rod mounting block, a heavy spring arranged between the left pull rod mounting block and the linear slider, and a cam arranged between the linear slider and the right pull rod mounting block.
[0010] Preferably, the linear slider is a rectangular block, a circular spring groove is arranged on the side facing the left pull rod mounting block, one end of the heavy spring is mounted in the spring groove, the other end is mounted on the left pull rod mounting block, and a recess for mounting the heavy spring is arranged on the left pull rod mounting block.
[0011] Preferably, the cam is a circular column with four cross-shaped half-circular grooves, a center shaft is arranged in the center of the circular column, a linear slider, and right pull rod mounting blocks are respectively provided with a recess at one end, a rotating shaft is arranged in each recess, and the two rotating shafts are respectively clamped in the two symmetrical half-circular grooves of the cam to position the cam left and right.
[0012] Preferably, the n-shaped upper shell is provided with a shaft hole at the upper side of the cam position, the upper end of the cam center shaft is sleeved in the shaft hole, and the lower end of the cam center shaft protrudes out of the lower cover.
[0013] Preferably, the upper end of the cam center shaft is sleeved with an upper shaft sleeve, the lower end is sleeved with a lower shaft sleeve, and the lower shaft sleeve is arranged in a shaft sleeve hole in the lower cover.
[0014] Preferably, the two rotating shafts are respectively provided with a small shaft sleeve at the upper end and the lower end.
[0015] Preferably, the left pull rod mounting block, the right pull rod mounting block, and the linear slider are respectively provided with a plurality of recesses on the side surface facing the side wall of the upper shell, and the recesses are respectively provided with sliding pads A and sliding pads B.
[0016] Preferably, the heavy spring inner hole is sleeved with a small spring, and the lengths of the two are the same.
[0017] Preferably, the upper shell is provided with two sliding grooves on the two side walls, and the sliding pads A and the sliding pads B on the left pull rod mounting block, the right pull rod mounting block, and the linear slider are respectively located in the two sliding grooves.
[0018] Preferably, the left pull rod mounting block, the linear slider, and the right pull rod mounting block are fixed together by four pull rods at the four corners.
[0019] The utility model discloses the beneficial effect has solved the hinge mechanism abrasion of prior art, the problem of small load, not easy to hide. BRIEF DESCRIPTION OF DRAWINGS
[0020] ATTACHED Figure 1 It is the three-dimensional structure explosion map of the utility model.
[0021] ATTACHED Figure 2 It is the plan view of the utility model.
[0022] ATTACHED Figure 3 ATTACHED Figure 2 A-A section view of the utility model.
[0023] ATTACHED Figure 4 It is the schematic diagram of the utility model installed on the door.
[0024] ATTACHED Figure 1In 4, L-shaped left plate 1, left support plate 2, sliding pad A3, sliding pad B3-1, left pull rod mounting block 4, small spring 5, heavy spring 6, linear slider 7, sliding groove 8, upper shell 9, pull rod 10, right pull rod mounting block 11, right support plate 12, L-shaped right plate 13, bolt 14, rotating shaft 15, small shaft sleeve 16, groove 17, upper shaft sleeve 18, cam 19, lower shaft sleeve 20, shaft sleeve hole 21, lower cover 22. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0026] ATTACHMENT Figure 1 As shown in 3, a pivot assembly for a pivot door comprises a shell and a spring assembly; the shell comprises an n-shaped upper shell 9, a lower cover 22, a left support plate 2 for sealing the left side and being fixed to the shell by bolts, an L-shaped left plate 1 fixed to the outer side of the left support plate 2 by bolts 14, a right support plate 12 for sealing the right side and being fixed to the shell by bolts, and an L-shaped right plate 13 fixed to the outer side of the right support plate 12 by bolts 14.
[0027] The spring assembly comprises a left pull rod mounting block 4 fixed to the right side of the left support plate 2 by bolts, a right pull rod mounting block 11 fixed to the left side of the right support plate 12 by bolts, a linear slider 7 arranged between the left pull rod mounting block 4 and the right pull rod mounting block 11, a heavy spring 6 arranged between the left pull rod mounting block 4 and the linear slider 7, and a cam 19 arranged between the linear slider 7 and the right pull rod mounting block 11.
[0028] The linear slider 7 is a rectangular block, and a circular spring groove is arranged on the side of the linear slider 7 facing the left pull rod mounting block 4; one end of the heavy spring 6 is arranged in the spring groove, and the other end of the heavy spring 6 is arranged on the left pull rod mounting block 4; the left pull rod mounting block 4 is provided with a groove for mounting the heavy spring 6.
[0029] The cam 19 is a circular column with four semicircular grooves arranged in a cross shape; a center shaft is arranged in the center of the circular column; one end of the linear slider 7 and one end of the right pull rod mounting block 11 are each provided with a groove 17; one rotating shaft 15 is arranged in each groove 17; and the two rotating shafts 15 are respectively clamped in the two symmetrical semicircular grooves of the cam 19 to position the cam 19 left and right.
[0030] The n-shaped upper shell 9 is provided with an axle hole on the upper side of the cam 19 position, the upper end of the cam 19 center shaft is sleeved in the axle hole, and the lower end of the cam 19 center shaft protrudes out of the lower cover 22.
[0031] The upper end of the cam 19 center shaft is sleeved with the upper shaft sleeve 18, the lower end is sleeved with the lower shaft sleeve 20, and the lower cover 22 is provided with a shaft sleeve hole 21, and the lower shaft sleeve is installed in the shaft sleeve hole 21.
[0032] The upper and lower ends of the two rotating shafts 15 are sleeved with small shaft sleeves 16.
[0033] The left pull rod mounting block 4, the right pull rod mounting block 11 and the linear sliding block 7 are respectively provided with a plurality of recesses on the side surface of the side wall of the upper shell 9, and sliding pads A3 and B3-1 are respectively arranged in the recesses.
[0034] The heavy spring 6 is sleeved with a small spring 5, and the lengths of the two are the same.
[0035] The upper and lower two sliding grooves 8 are arranged on the two side walls of the upper shell 9, and the sliding pads A3 and B3-1 on the left pull rod mounting block 4, the right pull rod mounting block 11 and the linear sliding block 7 are respectively located in the two sliding grooves 8.
[0036] The left pull rod mounting block 4, the linear sliding block 7 and the right pull rod mounting block 11 are fixed together by four pull rods 10 at four corners.
[0037] Reference Figure 4 The dashed line is a schematic view of the utility model installed on the door plate, the structure uses the cam 19 shaft as the lower support point, and the heavy spring bears the lateral gravity of the door plate, so that the overall structure volume can be reduced and hidden in the door plate, and the problems of fast wear, small bearing and difficult hiding of the existing hinge mechanism are solved.
[0038] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. A pivot assembly for a pivot door, characterised in that: It includes a shell, a spring assembly; the shell includes an n-shaped upper shell, a lower cover, a left side sealed with a left support plate and fixed with the shell by bolts, an L-shaped left side plate fixed outside the left support plate by bolts, a right side sealed with a right support plate and fixed with the shell by bolts, and an L-shaped right side plate fixed outside the right support plate by bolts; The spring assembly includes a left pull rod mounting block fixed on the right side of the left support plate by bolts, a right pull rod mounting block fixed on the left side of the right support plate by bolts, a linear slider arranged between the left pull rod mounting block and the right pull rod mounting block, a heavy spring arranged between the left pull rod mounting block and the linear slider, and a cam arranged between the linear slider and the right pull rod mounting block.
2. A pivot assembly for a pivot door according to claim 1, wherein: The linear slider is a rectangular block, and a circular spring groove is arranged on one side of the linear slider facing the left pull rod mounting block, one end of the heavy spring is mounted in the spring groove, and the other end is mounted on the left pull rod mounting block, and a recess for mounting the heavy spring is arranged on the left pull rod mounting block.
3. The pivot assembly for a pivot door of claim 1, wherein: The cam is a circular column with four semicircular grooves arranged in a cross shape, a center shaft is arranged in the center of the circular column, one end of the linear slider and the right pull rod mounting block is provided with a recess, and one end of the linear slider and the right pull rod mounting block is provided with a recess, and one end of the linear slider and the right pull rod mounting block is provided with a recess.
4. A pivot assembly for a pivot door according to claim 3 wherein: The two shafts are sleeved with small shaft sleeves at the upper and lower ends.
5. The pivot assembly for a pivot door of claim 1, wherein: The n-shaped upper shell is provided with a shaft hole above the cam position, the upper end of the cam center shaft is sleeved in the shaft hole, and the lower end of the cam center shaft protrudes out of the lower cover.
6. The pivot assembly for a pivot door of claim 1, wherein: The upper end of the cam center shaft is sleeved with an upper shaft sleeve, the lower end is sleeved with a lower shaft sleeve, and the lower cover is provided with a shaft sleeve hole, and the lower shaft sleeve is mounted in the shaft sleeve hole.
7. The pivot assembly for a pivot door of claim 1, wherein: The left pull rod mounting block, the right pull rod mounting block and the linear slider are respectively provided with a plurality of recesses on the side surface facing the side wall of the upper shell, and a sliding pad A and a sliding pad B are respectively arranged in the recesses.
8. The pivot assembly for a pivot door of claim 1, wherein: A small spring is sleeved in the heavy spring hole, and the lengths of the two are the same.
9. The pivot assembly for a pivot door of claim 1, wherein: Upper and lower sliding grooves are arranged on the two side walls of the upper shell, and the sliding pad A and the sliding pad B on the left pull rod mounting block, the right pull rod mounting block and the linear slider are respectively located in the two sliding grooves.
10. The pivot assembly for a pivot door of claim 1, wherein: The left pull rod mounting block, the linear slider and the right pull rod mounting block are fixed together by four pull rods at the four corners.