Bolt joint
By designing a two-stage boss on the inner wall of the buckle cylinder in the pin joint to cooperate with the recessed part of the pin, the problem of unstable connection caused by tilting during the pile foundation connection process is solved, and a stable connection is achieved in the tilted state.
Patent Information
- Application Number
- CN202520015328.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Local tilting is prone to occur during the existing pile foundation connection process, which can lead to incomplete connection of the pin joint and affect the connection effect.
A pin connector is designed, including a snap cylinder, a connector seat, a pin, and a sleeve. The inner wall of the snap cylinder is provided with at least two levels of protrusions, and the pin has a recess. The locking platform and the protrusions cooperate to ensure a stable connection even when tilted.
Even when the pile foundation is partially tilted, the cooperation between the locking platform and the protrusion ensures the stability of the connection, prevents the locking platform from detaching from the joint seat when tilting, and guarantees the stability and reliability of the connection.
Smart Images
Figure CN223633920U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of precast pile foundation, specifically, relate to a latch joint. BACKGROUND
[0002] The latch joint is usually used in the pile foundation connecting process, and then bears and transmits the action force between the upper and lower piles.
[0003] The existing pile foundation is prone to local inclination in the connecting process, which may cause the latch joint to be not connected in place, and then negatively affect the connecting effect. UTILITY MODEL CONTENT
[0004] The utility model provides a latch joint, which can guarantee the connecting stability when the pile foundation is locally inclined, and then ensure the connecting effect.
[0005] The embodiment of the utility model can be implemented as follows:
[0006] The embodiment of the utility model provides a latch joint, which comprises:
[0007] The latch joint comprises a buckle barrel, a joint seat, a latch and a sleeve.
[0008] The buckle barrel comprises at least two elastic petals and at least two clamping tables, the at least two elastic petals are arranged at intervals and sleeved on the head end of the latch, and the at least two clamping tables are arranged one by one at the end portions of the at least two elastic petals.
[0009] The inner side wall of the joint seat is formed with at least two levels of bosses, the at least two levels of bosses are used for dividing the inner cavity of the joint seat into a lead-in cavity and a containing cavity, the latch is formed with a recess portion, the sleeve is connected to the tail end of the latch, the latch is used for penetrating through the lead-in cavity to enter the containing cavity under the action of an external force, and the at least two clamping tables are simultaneously matched with the recess portion and the at least two levels of bosses.
[0010] Optionally, the outer side wall of the clamping table is formed with at least two layers of reverse teeth in the axial direction of the latch, and the at least two layers of reverse teeth are matched with the at least two levels of bosses.
[0011] Optionally, each layer of the reverse teeth comprises a flange surface, an extension surface and a root bottom surface which are sequentially connected at an included angle in the direction close to the elastic petal.
[0012] Optionally, the extension length of the flange surface is a, wherein a is greater than or equal to 0.5mm.
[0013] And / or, the diameters of the flange surfaces on the adjacent reverse teeth gradually increase in the direction away from the elastic petal.
[0014] Optionally, the arrangement level of the boss is more than the arrangement layer of the inverted tooth.
[0015] Optionally, the outer diameter of the inverted tooth in the diastolic state is greater than the inner diameter of the boss.
[0016] Optionally, the at least two levels of bosses are in the form of bevels.
[0017] Optionally, the outer side wall of the clamping post is formed with an outer abutting surface and a limiting surface arranged at an angle, the limiting surface is away from the elastic petals relative to the outer abutting surface, and the limiting surface cooperates with the at least two levels of bosses.
[0018] Optionally, the at least two levels of bosses are in the form of steps.
[0019] Optionally, the clamping post further comprises a base connected to one end of the elastic petals away from the clamping post.
[0020] An angle α is formed between the elastic petals and the base, wherein 90°<α<130°; and / or the distance between the ends of adjacent elastic petals close to the base is b, wherein 1.0mm≤b≤10.0mm.
[0021] Optionally, the inner side wall of the clamping post is formed with an inner abutting inclined surface and a guide inclined surface arranged at an angle, the guide inclined surface is away from the elastic petals relative to the inner abutting inclined surface.
[0022] Optionally, the extension length of the inner abutting inclined surface is c, wherein 0.5mm≤c≤3.0mm.
[0023] Optionally, the plug-in pin comprises a plug-in part, the recessed part, the extension part and the positioning part connected in sequence, the plug-in part is used for abutting the base of the clamping post, the recessed part is used for accommodating the clamping post, the connection between the plug-in part and the recessed part is formed with a pressure bearing surface, the pressure bearing surface is used for abutting the inner abutting inclined surface of the clamping post, and the positioning part is used for connecting to the sleeve.
[0024] Optionally, the extension length of the pressure bearing surface is d, wherein 0.5mm≤d≤3.0mm.
[0025] The beneficial effects of the plug-in joint of the embodiments of the utility model include, for example:
[0026] The latch joint comprises a latch barrel, a joint base, a latch and a sleeve, wherein the latch barrel comprises at least two elastic petals and at least two clamping platforms, the at least two elastic petals are arranged at intervals and sleeved on the head end of the latch, and the at least two clamping platforms are arranged at the end of the at least two elastic petals in one-to-one correspondence; the inner side wall of the joint base is formed with at least two levels of bosses, the at least two levels of bosses are used for dividing the inner cavity of the joint base into a leading-in cavity and a containing cavity, the latch is formed with a recess, the sleeve is connected to the tail end of the latch, the latch is used for penetrating through the leading-in cavity to enter the containing cavity under the action of an external force, and the at least two clamping platforms are simultaneously matched with the recess and the at least two levels of bosses. In the working process, by forming the at least two levels of bosses on the inner side wall of the joint base, the clamping platform can be abutted between the recess and one of the levels of bosses even in an inclined state, so that the clamping platform is prevented from being separated from the joint base in the inclined state, and the connection stability is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0027] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0028] Figure 1 Structure diagram of the latch joint provided in the embodiments of the present application Figure 1 ;
[0029] Figure 2 Structure diagram of the latch barrel provided in the embodiments of the present application Figure 1 ;
[0030] Figure 3 Structure diagram of the joint base provided in the embodiments of the present application Figure 1 ;
[0031] Figure 4 Structure diagram of the latch joint provided in the embodiments of the present application Figure 2 ;
[0032] Figure 5 Structure diagram of the latch barrel provided in the embodiments of the present application Figure 2 ;
[0033] Figure 6 Structure diagram of the joint base provided in the embodiments of the present application Figure 2 ;
[0034] Figure 7 Structure diagram of the latch provided in the embodiments of the present application.
[0035] Icon: 100 - buckle barrel; 110 - base; 120 - elastic petal; 130 - clamping table; 131 - inverted tooth; 1311 - flange surface; 1312 - extension surface; 1313 - root surface; 132 - inner abutting inclined surface; 133 - guide inclined surface; 134 - outer abutting surface; 135 - limiting surface; 200 - joint seat; 210 - boss; 220 - lead-in cavity; 230 - containing cavity; 300 - latch; 310 - plug portion; 315 - pressure bearing surface; 320 - recess; 330 - extension; 340 - positioning portion; 400 - sleeve; 1000 - latch joint. DETAILED DESCRIPTION
[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0037] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.
[0038] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0039] In the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product of the present application when it is usually placed, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.
[0040] In addition, if the terms "first", "second" and the like appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0041] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0042] Unless otherwise explicitly specified and limited, terms such as "setup" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0043] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.
[0044] Please refer to Figures 1-4 as well as Figure 6 The pin connector 1000 provided in the embodiments of this utility model can solve the above problems, and will be described in detail below.
[0045] The pin connector 1000 includes a snap sleeve 100, a connector seat 200, a pin 300, and a sleeve 400;
[0046] The buckle 100 includes a base 110, at least two elastic flaps 120 and at least two locking platforms 130. The at least two elastic flaps 120 are spaced apart. One end of the elastic flap 120 is located on the base 110, and the other end of the elastic flap 120 is correspondingly provided with a locking platform 130.
[0047] Furthermore, the inner wall of the connector seat 200 is formed with at least two levels of protrusions 210, which are used to divide the inner cavity of the connector seat 200 into an inlet cavity 220 and a receiving cavity 230. At least two elastic flaps 120 are sleeved on the head end of the pin 300. A recess 320 is formed on the pin 300. A sleeve 400 is connected to the end of the pin 300. The pin 300 is used to pass through the inlet cavity 220 and enter the receiving cavity 230 under the action of external force. The locking platform 130 cooperates with the recess 320 and the at least two levels of protrusions 210.
[0048] In the working process, the at least two levels of bosses are formed on the inner side wall of the joint seat, so that the clamping post is abutted between the recess and the boss even in the inclined state, thereby avoiding the clamping post 130 from being separated from the joint seat 200 in the inclined state, and thereby ensuring the connection stability.
[0049] With reference to Figures 1-3 The outer side wall of the clamping post 130 is formed with at least two layers of reverse teeth 131 along the axial direction of the bolt 300, and the at least two layers of reverse teeth 131 are matched with the at least two levels of bosses 210. In order to better improve the matching effect, the reverse teeth 131 and the bosses 210 can be formed in the form of inclined teeth, and the extension direction of the inclined teeth of the bosses 210 is opposite to the extension direction of the inclined teeth of the reverse teeth 131.
[0050] In addition, because of the matching of the reverse teeth 131 and the bosses 210, even if the elastic petals 120 are broken and the clamping post 130 is isolated, the clamping post 130 will not be easily separated from the joint seat 200, further ensuring the connection reliability.
[0051] It is worth noting that in the working process, the side of the base 110 close to the clamping post 130 is subjected to the extrusion of the bolt 300, and the elastic petals 120 are deformed in the process of entering the inner cavity of the joint seat 200, and the end away from the base 110 is contracted, thereby abutting the clamping post 130 between the bolt 300 and the joint seat 200.
[0052] With reference to Figures 1-3 Each layer of reverse teeth 131 includes a flange surface 1311, an extension surface 1312 and a root surface 1313 connected in sequence at an angle in the direction close to the elastic petals 120. In order to realize the connection tightness, the bosses 210 can be formed on the inner wall of the joint seat 200, and the bosses 210 can also be formed in the form of inclined teeth.
[0053] It should be noted that when the inclined teeth of the reverse teeth 131 are matched with the inclined teeth of the bosses 210, in order to avoid the damage of the root surface 1313, the size of the root surface 1313 can be increased, thereby reducing the stress of the reverse teeth 131.
[0054] At the same time, in order to ensure that the flange surface 1311 will not be damaged too early when the connection is stressed, the extension length of the flange surface 1311 can be a, wherein a≥0.5mm; specifically, the size of a can be 0.5mm, 0.6mm, 0.7mm, etc., and the specific length is not limited.
[0055] Further, in order to avoid damage to the reverse teeth 131 from the farthest end (i.e. the end relatively far away from the base 110) when stressed, the diameter of the flange surface 1311 on the adjacent reverse teeth 131 can be gradually increased in the direction away from the elastic petals 120.
[0056] Furthermore, the inclined boss 210 can be provided with a wing edge surface corresponding to the flange surface 1311 of the inverted tooth 131, and the diameter of the wing edge surface can be greater than the diameter of the flange surface 1311 on the previous inverted tooth 131, thereby ensuring that the inverted tooth 131 cannot be easily pulled out in a direction away from the base 110.
[0057] Reference Figures 1-3 In order to ensure sufficient elastic tension between the elastic petals 120 and the base 110, an included angle α can be formed therebetween, where 90° < α < 130°; specifically, the size of α can be 91°, 115°, 129°, etc., and the specific degree is not limited.
[0058] Further, in order to prevent adjacent elastic petals 120 from being pressed against each other when entering the joint seat 200, thereby affecting the expansion effect, the distance between the ends of adjacent elastic petals 120 close to the base 110 can be b, where 1.0 mm ≤ b ≤ 10.0 mm; specifically, the specific size of b can be 1.0 mm, 5.0 mm, 10.0 mm, etc., and the specific width is not limited.
[0059] Reference Figure 2 and Figure 5 The inner side wall of the clamping post 130 is formed with an inner abutting inclined surface 132 and a guide inclined surface 133 arranged at an included angle, and the guide inclined surface 133 is away from the base 110 relative to the inner abutting inclined surface 132.
[0060] The guide inclined surface 133 serves to guide the insertion of the pin 300 when it approaches the base 110, and the inner abutting inclined surface 132 serves to abut and cooperate with the pressure receiving surface 315 on the pin 300 after entering the joint seat 200, thereby ensuring the relative position stability between the clamping post 130 and the pin 300.
[0061] Specifically, in order to ensure the abutting connection strength of the clamping post 130 and the pin 300, the extension length of the inner abutting inclined surface 132 can be c, where 0.5 mm ≤ c ≤ 3.0 mm. Similarly, the extension length of the pressure receiving surface 315 can be d, where 0.5 mm ≤ d ≤ 3.0 mm. Specifically, the size of c and d can also be 0.5 mm, 1.5 mm, 3.0 mm, etc., and the specific length is not limited.
[0062] Reference Figures 1-3 In order to further improve the connection fault tolerance, the arrangement level of the boss 210 can be greater than the arrangement level of the inverted tooth 131, thereby enabling a single inverted tooth 131 to abut and cooperate with different bosses 210 in different inclined states.
[0063] Similarly, in order to ensure the tightness of the connection between the inverted tooth 131 and the boss 210, the outer diameter of the inverted tooth 131 in the relaxed state can be greater than the inner diameter of the boss 210, that is, when the inverted tooth 131 enters the inner cavity of the street seat along with the clamping post 130, the inverted tooth 131 will always have a movement trend of abutting against the boss 210 under the elastic force of the elastic flap 120.
[0064] Reference Figure 4 And Figure 5 The outer side wall of the clamping post 130 can also be provided with an outer abutting surface 134 and a limiting surface 135 arranged at an angle, the limiting surface 135 is away from the elastic flap 120 relative to the outer abutting surface 134 and cooperates with at least two levels of bosses 210. Moreover, in order to ensure the cooperation effect with the limiting surface 135, the boss 210 can be stepped.
[0065] In the embodiment, the number of levels of the boss 210 is two; in other embodiments of the utility model, the number of levels of the boss 210 can also be three, five, eight, etc., and the specific number of levels is not limited.
[0066] Reference Figure 1 And Figure 7 The plug pin 300 comprises a plug portion 310, a recess portion 320, an extension portion 330 and a positioning portion 340 connected in sequence, the plug portion 310 is used for abutting against the base 110, the recess portion 320 is used for accommodating the clamping post 130, a bearing surface 315 is formed at the connection between the plug portion 310 and the recess portion 320, the bearing surface 315 is used for abutting against the inner abutting inclined surface 132 of the clamping post 130, the positioning portion 340 is used for being connected to the sleeve 400, in the working process, the bearing surface 315 is used for abutting against the inner abutting inclined surface 132 of the clamping post 130, and the sizes of the two can also be matched, so that the tightness of cooperation is further improved.
[0067] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the technical field can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.
Claims
1. A pin joint, characterized in that The utility model relates to a connector, comprising: a buckle barrel (100), a joint base (200), a latch (300) and a sleeve (400), wherein the buckle barrel (100) comprises at least two elastic petals (120) and at least two clamping platforms (130), the at least two elastic petals (120) are arranged at intervals and sleeved on the head end of the latch (300), and the at least two clamping platforms (130) are arranged one by one on the end of the at least two elastic petals (120); the inner side wall of the joint base (200) is formed with at least two levels of bosses (210), the at least two levels of bosses (210) are used for dividing the inner cavity of the joint base (200) into a lead-in cavity (220) and a containing cavity (230), the latch (300) is formed with a recess (320), the sleeve (400) is connected to the end of the latch (300), the latch (300) is used for penetrating through the lead-in cavity (220) to enter the containing cavity (230) under the action of external force, and the at least two clamping platforms (130) are matched with the recess (320) and the at least two levels of bosses (210) at the same time.
2. The pin joint of claim 1, wherein The outer side wall of the clamping platform (130) is formed with at least two layers of reverse teeth (131) along the axial direction of the latch (300), and the at least two layers of reverse teeth (131) are matched with the at least two levels of bosses (210).
3. The pin joint of claim 2, wherein Each layer of the reverse tooth (131) comprises a flange surface (1311), an extension surface (1312) and a root surface (1313) which are sequentially connected at an angle along the direction close to the elastic petal (120).
4. The pin joint of claim 3, wherein The extension length of the flange surface (1311) is a, wherein a is greater than or equal to 0.5 mm; and / or, the diameter of the flange surface (1311) on the adjacent reverse tooth (131) gradually increases along the direction away from the elastic petal (120).
5. The pin joint of claim 2, wherein The arrangement number of the boss (210) is more than the arrangement number of the reverse tooth (131); and / or, the outer diameter of the reverse tooth (131) in the relaxed state is greater than the inner diameter of the boss (210).
6. The pin joint of claim 2, wherein The at least two levels of bosses (210) are in the form of inclined teeth.
7. The pin joint of claim 1, wherein The outer side wall of the clamping platform (130) is formed with an outer abutting surface (134) and a limiting surface (135) arranged at an angle, the limiting surface (135) is away from the elastic petal (120) relative to the outer abutting surface (134) and matched with the at least two levels of bosses (210).
8. The pin joint of claim 7, wherein, The at least two levels of bosses (210) are in the form of steps.
9. The pin joint of any one of claims 1-8, wherein, The buckle barrel (100) further comprises a base (110) connected to one end of the elastic petal (120) away from the clamping platform (130); an included angle alpha is formed between the elastic petal (120) and the base (110), wherein 90° < alpha < 130°; and / or, the spacing of the adjacent ends of the elastic petals (120) close to the base (110) is b, wherein 1.0 mm <= b <= 10.0 mm.
10. The pin joint of any one of claims 1-8, wherein, An inner abutting inclined surface (132) and a guide inclined surface (133) are formed on the inner side wall of the card platform (130) at an included angle, and the guide inclined surface (133) is away from the elastic flap (120) relative to the inner abutting inclined surface (132).
11. The pin joint of claim 10, wherein The extension length of the inner abutting inclined surface (132) is c, wherein 0.5mm≤c≤3.0mm.
12. The pin joint of any one of claims 1-8, wherein, The plug-in pin (300) comprises a plug-in portion (310), the recessed portion (320), an extension portion (330) and a positioning portion (340) connected in sequence, the plug-in portion (310) is used for abutting against the base (110) of the buckle cylinder (100), the recessed portion (320) is used for accommodating the card platform (130), a pressure bearing surface (315) is formed at the connection between the plug-in portion (310) and the recessed portion (320), the pressure bearing surface (315) is used for abutting against the inner abutting inclined surface (132) of the card platform (130), and the positioning portion (340) is used for being connected to the sleeve (400).
13. The pin joint of claim 12, wherein, The extension length of the pressure bearing surface (315) is d, wherein 0.5mm≤d≤3.0mm.